The contents and organization of the structure element contents built by the graPHIGS API are provided in this chapter. The element codes that your application can use in the inclusion and exclusion lists for the Element Search (GPELS) subroutine are also shown.
When your application uses the Inquire List of Element Data (GPQED) subroutine, see Chapter 12. "Structure Element Content as Returned by GPQE".
Partial Table-of-Contents
Every structure element as returned by the Inquire List of Element Data (GPQED) inquiry subroutine has the following data format:
---------------
WORDS 1 |length | code| Element header
---------------
2 | data | Element body
/ /
| |
---------------
The actual element body may contain more data than is given in the specified structure elements that follow this introduction. Any data that is undocumented is used internally by the graPHIGS API. You should always use the Inquire List of Element Headers (GPQEHD) subroutine to determine the actual length of the structure element. Use the length returned from the inquiry to calculate the size of your buffer (to contain the data), and to access the position of the next structure element.
Within each value range, codes for individual structure elements are chosen in an arbitrary manner. The actual code values for individual elements are shown following.
The following table shows the mnemonics used for the structure element codes and their actual values. The inquiry GPQED returns the value as part of the header.
| Mnemonic | Dec | Hex | Description |
|---|---|---|---|
| GPAAL | 37 | 0025 | Set Annotation Text Alignment
|
| GPADCN | 226 | 00E2 | Add Class Name to Set
|
| GPAH | 34 | 0022 | Set Annotation Text Height
|
| GPAHSC | 33 | 0021 | Set Annotation Text Height Scale Factor
|
| GPAID | 82 | 0052 | Set Antialiasing Identifier
|
| GPAN2 | 266 | 010A | Annotation Text 2
|
| GPAN3 | 265 | 0109 | Annotation Text 3
|
| GPANR2 | 270 | 010E | Annotation Text Relative 2
|
| GPANR3 | 269 | 010D | Annotation Text Relative 3
|
| GPAPT | 36 | 0024 | Set Annotation Text Path
|
| GPAS | 32 | 0020 | Set Annotation Style
|
| GPASF | 53 | 0035 | Set Attribute Source Flag
|
| GPAUP | 35 | 0023 | Set Annotation Text Up Vector
|
| GPBBLF | 104 | 0068 | Set Back Blending Function
|
| GPBDFM | 111 | 006F | Set Back Data Filtering Method
|
| GPBDMF | 116 | 0074 | Set Back Data Morphing Factors
|
| GPBDMI | 109 | 006D | Set Back Data Mapping Index
|
| GPBDM2 | 113 | 0071 | Set Back Data Matrix 2
|
| GPBICD | 64 | 0040 | Set Back Interior Color Direct
|
| GPBICI | 63 | 003F | Set Back Interior Color Index
|
| GPBISM | 107 | 006B | Set Back Interior Shading Method
|
| GPBLF | 103 | 0067 | Set Blending Function
|
| GPBRMO | 105 | 0069 | Set Back Reflectance Model
|
| GPBSCD | 68 | 0044 | Set Back Specular Color Direct
|
| GPBSCI | 67 | 0043 | Set Back Specular Color Index
|
| GPBSPR | 71 | 0047 | Set Back Surface Properties
|
| GPBTCO | 102 | 0066 | Set Back Transparency Coefficient
|
| GPCAC | 76 | 004C | Set Curve Approximation Criteria
|
| GPCEXS | 254 | 00FE | Conditional Execute Structure
|
| GPCFA2 | 308 | 0134 | Composite Fill Area 2
|
| GPCHH | 19 | 0013 | Set Character Height
|
| GPCHLS | 39 | 0027 | Set Character Line Scale Factor
|
| GPCHL2 | 304 | 0130 | Character Line 2
|
| GPCHPM | 22 | 0016 | Set Character Positioning Mode
|
| GPCHSP | 17 | 0011 | Set Character Spacing
|
| GPCHUB | 38 | 0026 | Set Character Up and Base Vectors
|
| GPCHUP | 20 | 0014 | Set Character Up Vector
|
| GPCHXP | 16 | 0010 | Set Character Expansion Factor
|
| GPCOND | 243 | 00F3 | Set Condition
|
| GPCPI | 7 | 0007 | Set Color Processing Index
|
| GPCRA2 | 274 | 0112 | Circular Arc 2
|
| GPCRET | 240 | 00F0 | Conditional Return
|
| GPCR2 | 273 | 0111 | Circle 2
|
| GPDCI | 6 | 0006 | Set Depth Cue Index
|
| GPDFM | 110 | 006E | Set Data Filtering Method
|
| GPDMF | 115 | 0073 | Set Data Morphing Factors
|
| GPDMI | 108 | 006C | Set Data Mapping Index
|
| GPDM2 | 112 | 0070 | Set Data Matrix 2
|
| GPDPL2 | 260 | 0104 | Disjoint Polyline 2
|
| GPDPL3 | 259 | 0103 | Disjoint Polyline 3
|
| GPECD | 44 | 002C | Set Edge Color Direct
|
| GPECI | 29 | 001D | Set Edge Color Index
|
| GPEF | 27 | 001B | Set Edge Flag
|
| GPEI | 4 | 0004 | Set Edge Index
|
| GPELA2 | 283 | 011B | Elliptical Arc 2
|
| GPELA3 | 282 | 011A | Elliptical Arc 3
|
| GPELT | 28 | 001C | Set Edge Linetype
|
| GPEL2 | 281 | 0119 | Ellipse 2
|
| GPEL3 | 280 | 0118 | Ellipse 3
|
| GPESC | 30 | 001E | Set Edge Scale Factor
|
| GPEXST | 250 | 00FA | Execute Structure
|
| GPFBC | 50 | 0032 | Set Frame Buffer Comparison
|
| GPFBM | 49 | 0031 | Set Frame Buffer Protect Mask
|
| GPFDMO | 72 | 0048 | Set Face Distinguish Mode
|
| GPFLM | 84 | 0054 | Set Face Lighting Method
|
| GPGLX2 | 211 | 00D3 | Set Global Transformation 2
|
| GPGLX3 | 210 | 00D2 | Set Global Transformation 3
|
| GPHID | 74 | 004A | Set HLHSR Identifier
|
| GPHLCD | 225 | 00E1 | Set Highlighting Color Direct
|
| GPHLCI | 224 | 00E0 | Set Highlighting Color Index
|
| GPICD | 43 | 002B | Set Interior Color Direct
|
| GPICI | 26 | 001A | Set Interior Color Index
|
| GPII | 5 | 0005 | Set Interior Index
|
| GPINAD | 228 | 00E4 | Insert Application Data
|
| GPINLB | 251 | 00FB | Insert Label
|
| GPIS | 24 | 0018 | Set Interior Style
|
| GPISI | 25 | 0019 | Set Interior Style Index
|
| GPISM | 106 | 006A | Set Interior Shading Method
|
| GPLG2 | 296 | 0128 | Line Grid 2
|
| GPLG3 | 295 | 0127 | Line Grid 3
|
| GPLLCD | 117 | 0075 | Set Line-on-Line Color Direct
|
| GPLLCI | 118 | 0076 | Set Line-on-Line Color Index
|
| GPLMO | 79 | 004F | Set Lighting Calculation Mode
|
| GPLSS | 73 | 0049 | Set Light Source State
|
| GPLT | 8 | 0008 | Set Linetype
|
| GPLWSC | 9 | 0009 | Set Linewidth Scale Factor
|
| GPMCI | 214 | 00D6 | Set Modeling Clipping Indicator
|
| GPMCV2 | 213 | 00D5 | Set Modeling Clipping Volume 2
|
| GPMCV3 | 212 | 00D4 | Set Modeling Clipping Volume 3
|
| GPMG2 | 294 | 0126 | Marker Grid 2
|
| GPMG3 | 293 | 0125 | Marker Grid 3
|
| GPMLX2 | 209 | 00D1 | Set Modeling Transformation 2
|
| GPMLX3 | 208 | 00D0 | Set Modeling Transformation 3
|
| GPMSSC | 12 | 000C | Set Marker Size Scale Factor
|
| GPMT | 11 | 000B | Set Marker Type
|
| GPNBC2 | 279 | 0117 | Non Uniform B-spline Curve 2
|
| GPNBC3 | 278 | 0116 | Non Uniform B-spline Curve 3
|
| GPNBS | 305 | 0131 | Non Uniform B-spline Surface
|
| GPNULL | 229 | 00E5 | Null Data
|
| GPPGC | 69 | 0045 | Set Polygon Culling
|
| GPPGD2 | 300 | 012C | Polygon 2 With Data
|
| GPPGD3 | 299 | 012B | Polygon 3 With Data
|
| GPPG2 | 290 | 0122 | Polygon 2
|
| GPPG3 | 289 | 0121 | Polygon 3
|
| GPPHE | 309 | 0135 | Polyhedron Edge
|
| GPPHEC | 78 | 004E | Set Polyhedron Edge Culling
|
| GPPKID | 252 | 00FC | Set Pick Identifier
|
| GPPLCD | 40 | 0028 | Set Polyline Color Direct
|
| GPPLCI | 10 | 000A | Set Polyline Color Index
|
| GPPLD3 | 318 | 013E | Polyline Set 3 with Data
|
| GPPLET | 31 | 001F | Set Polyline End Type
|
| GPPLI | 1 | 0001 | Set Polyline Index
|
| GPPL2 | 258 | 0102 | Polyline 2
|
| GPPL3 | 257 | 0101 | Polyline 3
|
| GPPLSM | 98 | 0062 | Set Polyline Shading Method
|
| GPPMCD | 41 | 0029 | Set Polymarker Color Direct
|
| GPPMCI | 13 | 000D | Set Polymarker Color Index
|
| GPPMI | 2 | 0002 | Set Polymarker Index
|
| GPPM2 | 262 | 0106 | Polymarker 2
|
| GPPM3 | 261 | 0105 | Polymarker 3
|
| GPPSC | 81 | 0051 | Parametric Surface Characteristic
|
| GPPXL2 | 272 | 0110 | Pixel 2
|
| GPPXL3 | 271 | 010F | Pixel 3
|
| GPQM3 | 320 | 0140 | Quadrilateral Mesh 3
|
| GPRCN | 227 | 00E3 | Remove Class Name from Set
|
| GPRMCV | 215 | 00D7 | Restore Modeling Clipping Volume
|
| GPRMO | 99 | 0063 | Set Reflectance Model
|
| GPSAC | 77 | 004D | Set Surface Approximation Criteria
|
| GPSCD | 66 | 0042 | Set Specular Color Direct
|
| GPSCI | 65 | 0041 | Set Specular Color Index
|
| GPSPH | 312 | 0138 | Polysphere
|
| GPSPR | 70 | 0046 | Set Surface Properties
|
| GPTCAC | 80 | 0050 | Set Trimming Curve Approx. Criteria
|
| GPTCO | 101 | 0065 | Set Transparency Coefficient
|
| GPTEX2 | 242 | 00F2 | Test Extent 2
|
| GPTEX3 | 241 | 00F1 | Test Extent 3
|
| GPTNBS | 306 | 0132 | Trimmed Non-uniform B-spline Surface
|
| GPTS3 | 301 | 012D | Triangle Strip 3
|
| GPTXAL | 23 | 0017 | Set Text Alignment
|
| GPTXCD | 42 | 002A | Set Text Color Direct
|
| GPTXCI | 18 | 0012 | Set Text Color Index
|
| GPTXFO | 14 | 000E | Set Text Font
|
| GPTXI | 3 | 0003 | Set Text Index
|
| GPTXPR | 15 | 000F | Set Text Precision
|
| GPTXPT | 21 | 0015 | Set Text Path
|
| GPTX2 | 264 | 0108 | Geometric Text 2
|
| GPTX3 | 263 | 0107 | Geometric Text 3
|
| GPVMF | 114 | 0072 | Set Vertex Morphing Factors
|
| GPVWI | 216 | 00D8 | Set View Index
|
| GPWDO | 246 | 00F6 | Workstation Dependent Output
|
| GPZBM | 85 | 0055 | Set Z-buffer Protect Mask
|
This section provides a generic listing of possible data types for structure element parameters. The Output Primitives section refers to the data types described here in order to describe the specific data type of a particular structure element parameter.
Point 3
---------------------
| x | Short floating-point number
---------------------
| y | Short floating-point number
---------------------
| z | Short floating-point number
---------------------
Point 2
---------------------
| x | Short floating-point number
---------------------
| y | Short floating-point number
---------------------
Vector 3
---------------------
| x | Short floating-point number
---------------------
| y | Short floating-point number
---------------------
| z | Short floating-point number
---------------------
Vector 2
---------------------
| x | Short floating-point number
---------------------
| y | Short floating-point number
---------------------
Control point 3
The format of this data type depends on the rationality flag, bit 15, of the cflag/sflag parameter within the primitive.
---------------------
| x | Short floating-point number
---------------------
| y | Short floating-point number
---------------------
| z | Short floating-point number
--------------------- ---------------------
| x | Short floating-point number
---------------------
| y | Short floating-point number
---------------------
| z | Short floating-point number
---------------------
| w | Short floating-point number
---------------------Control point 2
The format of this data type depends on the rationality flag, bit 15, of the cflag parameter within the primitive.
---------------------
| x | Short floating-point number
---------------------
| y | Short floating-point number
--------------------- ---------------------
| x | Short floating-point number
---------------------
| y | Short floating-point number
---------------------
| w | Short floating-point number
---------------------Color
The format of this data type depends on the "color type" bit in the primitive's gflag parameter.
---------------------
| component 1 | Short floating-point number
---------------------
| component 2 | Short floating-point number
---------------------
| component 3 | Short floating-point number
---------------------
where 0.0 <= component n <= 1.0
Facet 3
The format of this data type depends on the bit settings in the "oflag" field in the primitive. When the bit indicated to the left of each data item is 1, the data item is present. Otherwise, the corresponding data item is not present. All data items, if they are present, must be specified in the order shown below.
---------------------
bit 7 | facet normal | 3 short floating-point numbers
---------------------
---------------------
bit 6 | facet color | Color
---------------------
Data_Extension
The presence of this data type depends on a bit setting of the "gflag" field in the primitive. When bit 11 of the "gflag" is 1, then additional data is present after the "oflag"screen
---------------------
WORDS 1 | Fl |Rsv1| Vl | Vdl| 4 unsigned byte integers
---------------------
2 |Rsv2|Rsv3|Vvml|Vdml| 4 unsigned byte integers
---------------------
3 |Rsv4|Rsv5|Rsv6|Rsv7| 4 unsigned byte integers
---------------------
Vertex 3
The format of this data type depends on the bit settings of the "oflag" field in the primitive. When the bit indicated to the left of each data item is 1, the data item is present. Otherwise, the corresponding data item is not present. The data item without any corresponding bit is always present. All data items, if they are present, must be specified in the order shown below.
---------------------
| coordinate | Point 3
---------------------
---------------------
bit 15 | vertex normal | Vector 3
---------------------
---------------------
bit 14 | vertex color | Color
---------------------
---------------------
bit 13 | opt_data flag | Fullword integer
---------------------
---------------------
bit 12 | tran_coeff | Floating-point number
---------------------
---------------------
bit 11 | vertex morphing | 'Vvml x'
/ 3d vectors / Floating-point number
---------------------
---------------------
bit 10 | data mapping | 'Vdl x'
/ data / Floating-point number
---------------------
---------------------
bit 9 | data morphing | 'Vdml x'
/ vectors / Floating-point number
---------------------
Vertex 2
The format of this data type depends on bit setting of the "oflag" field in the primitive. When the bit indicated in the left of each data item is 1, the data item is present. Otherwise, the corresponding data item is not present. The data item without any corresponding bit is always present. All data items, if they are present, must be specified in the order shown below.
---------------------
| coordinate | Point 2
---------------------
---------------------
bit 14 | vertex color | Color
---------------------
---------------------
bit 13 | opt_data flag | Fullword integer
---------------------
---------------------
bit 12 | tran_coeff | Floating-point number
---------------------
---------------------
bit 11 | vertex morhping | 'Vvml x'
/ 2d vectors / Floating-point number
---------------------
---------------------
bit 10 | data mapping | 'Vdl x'
/ data / Floating-point number
---------------------
---------------------
bit 9 | data morphing | 'Vdml x'
/ vectors / Floating-point number
---------------------
Notes:
When the value of bit 30 or bit 31 is 1, a line starting from this vertex is treated as a geometric edge. Bit 30 is used by area primitives that require only one edge indicator flag per vertex. Quadrilateral Mesh 3 and Triangle Strip 3 are the only area primitives that require two edge indicators per vertex. Therefore, for the Quadrilateral Mesh 3 primitive, bit 30 is the edge indicator from specified vertex "V" ( i, j ) to vertex "V" ( i + 1, j ), and bit 31 is the edge indicator from specified vertex "V" (sub i,j) to vertex "V" ( i, j +1 ). For the Triangle Strip 3 primitive, bit 30 is the edge indicator from specified vertex "V" ( i ) to vertex "V" ( i +1 ), and bit 31 is the edge indicator from specified vertex "V" ( i ) to vertex "V" ( i +2 )
Edge indicators are used only when the current global edge flag is set to ON or GEOMETRY_ONLY
This structure element defines a series of three-dimensional points that are to be connected by straight lines. The width parameter is discarded when creating the structure element.
---------------------
WORDS 1 | length | X'0101' | Element header
---------------------
2 | | Array of short
/ X,Y,Z,X,Y,Z,X... / floating-point numbers
/ /
---------------------
This structure element defines a series of two-dimensional points that are to be connected by straight lines. The width parameter is discarded when creating the structure element.
---------------------
WORDS 1 | length | X'0102' | Element header
---------------------
2 | | Array of short
/ X,Y,X,Y,X ... / floating-point numbers
/ /
---------------------
This structure element defines multiple three-dimensional polylines. The plwidth, vxwidth, and pldata parameters are discarded when creating the structure element. The API's vxdata parameter is used to build the "seglist" field and is then discarded. Bits in the API's pflags, plflags, and vxflags parameters are used to build the oflag field and are then discarded.
----------------------
WORDS 1 | length | X'013E' | Element header
----------------------
2 | gflag | oflag | 2 halfword integers
----------------------
3-5 | data_extension* | Data_extension
----------------------
| seglist | n x Segment
/ /
/ /
----------------------
Segment format
---------------------
| length | Fullword integer
---------------------
| vlist | m x Vertex 3
/ /
/ /
---------------------
* The data_extension field is present only if bit 11 of the gflag is 1.
This structure element defines a series of three-dimensional points that are to be connected by straight lines in three-dimensional modeling space. The API's npoint, width, pointlist and mdarray parameters are used to build the "seglist" field and are then discarded.
---------------------
WORDS 1 | length | X'0103' | Element header
---------------------
2 | | n x Segment
/ seglist /
/ /
---------------------
Segment format
---------------------
| length | Fullword integer
---------------------
| | Array of short
/ X,Y,Z,X,Y,Z,X... / floating-point numbers
/ /
---------------------
This structure element defines a series of two-dimensional points that are to be connected by straight lines. The API's npoint, width, pointlist and mdarray parameters are used to build the "seglist" field and are then discarded.
---------------------
WORDS 1 | length | X'0104' | Element header
---------------------
2 | seglist | n x segment
/ /
/ /
---------------------
Segment format
---------------------
| length | Fullword integer
---------------------
| | Array of short
/ X,Y,X,Y,X,Y,X... / floating-point numbers
/ /
---------------------
This structure element defines a circle in two-dimensional modeling space.
---------------------
WORDS 1 | length | X'0111' | Element header
---------------------
2-3 | center | 2 short floating-point numbers
---------------------
4 | radius | Short floating-point number
---------------------
This structure element defines a circular arc in two-dimensional modeling space.
---------------------
WORDS 1 | length | X'0112' | Element header
---------------------
2-3 | center | 2 short floating-point numbers
---------------------
4 | radius | Short floating-point number
---------------------
5 | startang | Short floating-point number
---------------------
6 | endang | Short floating-point number
---------------------
This structure element defines an ellipse in three-dimensional modeling space.
---------------------
WORDS 1 | length | X'0118' | Element header
---------------------
2-4 | center | 3 short floating-point numbers
---------------------
5-7 | refv1 | 3 short floating-point numbers
---------------------
8-10 | refv2 | 3 short floating-point numbers
---------------------
This structure element defines an ellipse in two-dimensional modeling space.
---------------------
WORDS 1 | length | X'0119' | Element header
---------------------
2-3 | center | 2 short floating-point numbers
---------------------
4-5 | refv1 | 2 short floating-point numbers
---------------------
6-7 | refv2 | 2 short floating-point numbers
---------------------
This structure element defines an elliptical arc in three-dimensional modeling space.
---------------------
WORDS 1 | length | X'011A' | Element header
---------------------
2-4 | center | 3 short floating-point numbers
---------------------
5-7 | refv1 | 3 short floating-point numbers
---------------------
8-10 | refv2 | 3 short floating-point numbers
---------------------
11 | startv | Short floating-point number
---------------------
12 | endv | Short floating-point number
---------------------
This structure element defines an elliptical arc in two-dimensional modeling space.
---------------------
WORDS 1 | length | X'011B' | Element header
---------------------
2-3 | center | 2 short floating-point numbers
---------------------
4-5 | refv1 | 2 short floating-point numbers
---------------------
6-7 | refv2 | 2 short floating-point numbers
---------------------
8 | startv | Short floating-point number
---------------------
9 | endv | Short floating-point number
---------------------
This structure element defines a grid of lines in the plane defined by point, refv1, and refv2 in three-dimensional modeling space.
---------------------
WORDS 1 | length | X'0127' | Element header
---------------------
2-4 | point | 3 short floating-point numbers
---------------------
3-7 | refv1 | 3 short floating-point numbers
---------------------
8-10 | refv2 | 3 short floating-point numbers
---------------------
11 | imin | Fullword integer
---------------------
12 | imax | Fullword integer
---------------------
13 | jmin | Fullword integer
---------------------
14 | jmax | Fullword integer
---------------------
This structure element defines a grid of lines in the plane defined by point, refv1, and refv2 in two-dimensional modeling space.
---------------------
WORDS 1 | length | X'0128' | Element header
---------------------
2-3 | point | 2 short floating-point numbers
---------------------
4-5 | refv1 | 2 short floating-point numbers
---------------------
6-7 | refv2 | 2 short floating-point numbers
---------------------
8 | imin | Fullword integer
---------------------
9 | imax | Fullword integer
---------------------
10 | jmin | Fullword integer
---------------------
11 | jmax | Fullword integer
---------------------
This structure element defines a non-uniform B-spline curve of the specified order using the specified coefficients in three-dimensional modeling space.
---------------------
WORDS 1 | length | X'0116' | Element header
---------------------
2 | cflag | tflag | 2 halfword integers
---------------------
3 | order | Fullword integer
---------------------
4 | npoint | Fullword integer
---------------------
5 | tmin | Short floating-point number
---------------------
6 | tmax | Short floating-point number
---------------------
7 | iknot | 'order' x Iknot
/ /
/ /
---------------------
| ipoint | ('order'-1) x Ipoint
/ /
/ /
---------------------
| spanlist | ('npoint'-'order'+1) x span
/ /
/ /
---------------------
Iknot format
---------------------
| knot | Array of short floating-point numbers
---------------------
Ipoint format
---------------------
| cpoint | Control point 3
---------------------
| knot | Array of short floating-point numbers
---------------------
Span format
---------------------
| cpoint | Control point 3
---------------------
This structure element defines a non-uniform B-spline curve of the specified order using the specified coefficients in two-dimensional modeling space.
---------------------
WORDS 1 | length | X'0117' | Element header
---------------------
2 | cflag | tflag | 2 halfword integers
---------------------
3 | order | Fullword integer
---------------------
4 | npoint | Fullword integer
---------------------
5 | tmin | Short floating-point number
---------------------
6 | tmax | Short floating-point number
---------------------
7 | iknot | 'order' x iknot
/ /
/ /
---------------------
| ipoint | ('order'-1) x ipoint
/ /
/ /
---------------------
| spanlist | ('npoint'-'order'+1) x span
/ /
/ /
---------------------
Iknot format
---------------------
| knot | Array of short floating-point numbers
---------------------
Ipoint format
---------------------
| cpoint | Control point 2
---------------------
| knot | Array of short floating-point numbers
---------------------
Span format
---------------------
| cpoint | Control point 2
---------------------
The relation between the API parameters and fields in this structure element is shown by the following picture.
Control points Tessellation Knot values
-----------
| |
'order' | | -->'iknot'
| |
| |
----------- |---------|
| | | |
'order'1 | | | | -->'ipoint'
| | | |
|---------| ----------- |---------|
| | | | | |
'number' | | | | | |
| | | | | |
'order'+1 | | | | | | -->'span'
| | | | | |
| | | | | |
----------- ----------- -----------
This structure element simulates the edge of a polyhedron type object.
---------------------
WORDS 1 | length | X'0135' | Element header
---------------------
2 | edgelist | 'nedge' x edge
/ /
/ /
---------------------
Edge format
---------------------
| normal#1 | 3 short floating-point numbers
---------------------
| normal#2 | 3 short floating-point numbers
---------------------
| vertex#1 | 3 short floating-point numbers
---------------------
| vertex#2 | 3 short floating-point numbers
---------------------
Note: The API's nedge parameter is discarded after being used to build the "edgelist" field.
This structure element defines a series of points that are to be identified with markers in three-dimensional modeling space.
---------------------
WORDS 1 | length | X'0105' | Element header
---------------------
2 | pointlist | 'npoint' x Point 3
/ /
/ /
---------------------
Note: The API's npoint, width and pointlist parameters are used to build the "plist" field and are then discarded.
This structure element defines a series of points that are to be identified with markers in two-dimensional modeling space.
---------------------
WORDS 1 | length | X'0106' | Element header
---------------------
2 | pointlist | 'npoint' x Point 2
/ /
/ /
---------------------
Note: The API's npoint, width and pointlist parameters are used to build the "plist" field and are then discarded.
This structure element defines a grid of markers in the plane defined by point, refv1, and refv2 in three-dimensional modeling space.
---------------------
WORDS 1 | length | X'0125' | Element header
---------------------
2-4 | point | 3 short floating-point numbers
---------------------
3-7 | refv1 | 3 short floating-point numbers
---------------------
8-10 | refv2 | 3 short floating-point numbers
---------------------
11 | imin | Fullword integer
---------------------
12 | imax | Fullword integer
---------------------
13 | jmin | Fullword integer
---------------------
14 | jmax | Fullword integer
---------------------
This structure element defines a grid of markers in the plane defined by point, refv1, and refv2 in two-dimensional modeling space.
---------------------
WORDS 1 | length | X'0126' | Element header
---------------------
2-3 | point | 2 short floating-point numbers
---------------------
4-5 | refv1 | 2 short floating-point numbers
---------------------
6-7 | refv2 | 2 short floating-point numbers
---------------------
8 | imin | Fullword integer
---------------------
9 | imax | Fullword integer
---------------------
10 | jmin | Fullword integer
---------------------
11 | jmax | Fullword integer
---------------------
This structure element defines an annotation text string in three-dimensional modeling space.
---------------------
WORDS 1 | length | X'0109' | Element header
---------------------
2-4 | point | 3 short floating-point numbers
---------------------
5 | length | Fullword integer
---------------------
6 | rsvd | csid | 2 halfword integers
---------------------
7 | text | Variable-length character string
/ /
/ /
---------------------
(Ref #91.) This structure element defines an annotation text string in two-dimensional modeling space.
---------------------
WORDS 1 | length | X'010A' | Element header
---------------------
2-3 | point | 2 short floating-point numbers
---------------------
4 | length | Fullword integer
---------------------
5 | rsvd | csid | 2 halfword integers
---------------------
6 | text | Variable-length character string
/ /
/ /
---------------------
This structure element defines an annotation text string in three-dimensional normalized projection coordinates and annotates a specified reference point according to the annotation style in the traversal state list.
---------------------
WORDS 1 | length | x'010D' | Element header
---------------------
2-4 | refpoint | Point 3
---------------------
5-7 | offset | Point 3
---------------------
8 | length | Fullword integer
---------------------
9 | rsvrd | bcsid | 2 halfword integers
---------------------
10 | text | Fullword integer
/ /
| |
---------------------
This structure element defines an annotation text string in two-dimensional normalized projection coordinates and annotates a specified reference point according to the annotation style in the traversal state list.
---------------------
WORDS 1 | length | x'010E' | Element header
---------------------
2-4 | refpoint | Point 2
---------------------
5-7 | offset | Point 2
---------------------
8 | length | Fullword integer
---------------------
9 | rsvrd | bcsid | 2 halfword integers
---------------------
10 | text | Fullword integer
/ /
/ /
---------------------
This structure element defines a geometric text string in three-dimensional modeling space.
---------------------
WORDS 1 | length | X'0107' | Element header
---------------------
2-4 | point | 3 short floating-point numbers
---------------------
5-7 | refvx | 3 short floating-point numbers
---------------------
8-10 | refvd | 3 short floating-point numbers
---------------------
11-13 | refvy | 3 short floating-point numbers
---------------------
14 | length | Fullword integers
---------------------
15 | rsvd | csid | 2 halfword integers
---------------------
16 | text | Variable-length character string
/ /
/ /
---------------------
This structure element defines a geometric text string in two-dimensional modeling space.
---------------------
WORDS 1 | length | X'0108' | Element header
---------------------
2-3 | point | 2 short floating-point numbers
---------------------
4 | length | Fullword integer
---------------------
5 | rsvd | csid | 2 halfword integers
---------------------
6 | text | Variable-length character string
/ /
/ /
---------------------
This structure element is used to define an integral number of a specific character along a line between two specified points.
---------------------
WORDS 1 | length | X'0130' | Element header
---------------------
2-3 | startp | 2 short floating-point numbers
---------------------
4-5 | endp | 2 short floating-point numbers
---------------------
6-7 | refvx | 2 short floating-point numbers
---------------------
8-9 | refvy | 2 short floating-point numbers
---------------------
10 | distance | Short floating-point number
---------------------
11 | nomhgt | Short floating-point number
---------------------
12 | X'0000' | csid | 2 halfword integers
---------------------
13 |char| pad | Character code
---------------------
Note: Character code is left-adjusted in the "char" field and the element is padded to a word boundary.
This structure element defines a polygon in three-dimensional modeling space.
---------------------
WORDS 1 | length | X'0121' | Element header
---------------------
2 | gflag | reserved | 2 halfword integers
---------------------
3 | contlist | 'areas' x contour
/ /
/ /
---------------------
Contour format
---------------------
| contlen | Fullword integer
---------------------
| plist | m x Point 3
/ /
/ /
---------------------
Note: The pointlist parameter is reorganized into the contlistscreen The areas, width and npoint parameter are discarded after being used.
This structure element defines a polygon in two-dimensional modeling space.
---------------------
WORDS 1 | length | X'0122' | Element header
---------------------
2 | gflag | reserved | 2 halfword integers
---------------------
3 | contlist | 'areas' x contour
/ /
/ /
---------------------
Contour format
---------------------
| contlen | Fullword integer
---------------------
| plist | m x Point 2
/ /
/ /
---------------------
Note: The pointlist parameter is reorganized into the contlistscreen The areas, width and npoint parameter are discarded after being used.
This structure element defines a polygon with the specified number of subareas in three-dimensional modeling space.
----------------------
WORDS 1 | length | X'012B' | Element header
----------------------
2 | gflag | oflag | 2 halfword integers
----------------------
3-5 | data_extension* | Data_extension
----------------------
| facet | Facet 3
| |
----------------------
| contlist | 'Number of subareas'
/ /
/ /
----------------------
Contour format
---------------------
| contlen | Fullword integer
---------------------
| vlist | m x Vertex 3
/ /
/ /
---------------------
* The data_extension field is present only if bit 11 of the gflag is 1.
This structure element defines a polygon with the specified number of subareas in two-dimensional modeling space.
----------------------
WORDS 1 | length | X'012C' | Element header
----------------------
2 | gflag | oflag | 2 halfword integers
----------------------
3-5 | data_extension* | Data_extension
----------------------
| facet | Facet 2
| |
----------------------
| contlist | 'Number of subareas'
/ /
/ /
----------------------
Contour format
---------------------
| contlen | Fullword integer
---------------------
| vlist | m x Vertex 2
/ /
/ /
---------------------
* The data_extension field is present only if bit 11 of the gflag is 1.
This structure element defines (n-2) triangles from n vertexes in three-dimensional modeling space.
----------------------
WORDS 1 | length | X'012D' | Element header
----------------------
2 | gflag | oflag | 2 halfword integers
----------------------
3-5 | data_extension* | Data_extension
----------------------
| vertex#1 | Vertex 3
| |
----------------------
| vertex#2 | Vertex 3
| |
----------------------
| body | 'Number of point - 2'
/ / x
/ / triangle
----------------------
Triangle format
---------------------
| facet | Facet 3
---------------------
| vertex | Vertex 3
---------------------
* The data_extension field is present only if bit 11 of the gflag is 1.
This structure element defines (m-1 [default] n-1) quadrilaterals from a two-dimensional array of m [default] n vertices in three-dimensional modeling space.
----------------------
WORDS 1 | length | X'0140' | Element header
----------------------
2 | gflag | oflag | 2 halfword integers
----------------------
3-5 | data_extension* | Data_extension
----------------------
| row_dim | Fullword integer
----------------------
| col_dim | Fullword integer
----------------------
| vlist | row_dim x Vertex 3
/ /
/ /
----------------------
| quad_rows | (col_dim-1) x Quad_row
/ /
/ /
----------------------
Quad_row format
----------------------
| vertex | Vertex 3
----------------------
| quads | (row_dim-1) x Quad
/ /
----------------------
Quad format
----------------------
| facet | Facet 3
----------------------
| vertex | Vertex 3
----------------------
* The data_extension field is present only if bit 11 of the gflag is 1.
This structure element defines a Non-Uniform B-Spline Surface of the specified u and v orders using the specified control points and knots.
---------------------
WORDS 1 | length | X'0131' | Element header
---------------------
2 | sfflag | stflag | 2 halfword integers
---------------------
3 | u-order | Fullword integer
---------------------
4 | unumber | Fullword integer
---------------------
5 | vorder | Fullword integer
---------------------
6 | vnumber | Fullword integer
---------------------
7 | umin | Short floating-point number
---------------------
8 | umax | Short floating-point number
---------------------
9 | vmin | Short floating-point number
---------------------
10 | vmax | Short floating-point number
---------------------
11 | uknots | 'u-number' + 'u-order'
/ / x
/ / short floating-point number
---------------------
| utess | 'u-number' - 'u-order'+1
/ / x
| | short floating-point number
---------------------
| vknots | 'v-number' + 'v-order'
/ / x
| | short floating-point number
---------------------
| vtess | 'v-number' - 'v-order'+1
/ / x
| | short floating-point number
---------------------
| clist | 'u-number' x 'v-number'
/ / x
| | Control point 3
---------------------
This structure element defines the planar area geometry defined by the specified contours using polygon attributes.
---------------------
WORDS 1 | length | X'0134' | Element header
---------------------
2 | gflag | reserved | 2 halfword integers
---------------------
3 | contlist | 'ncontour' x contour
/ /
/ /
---------------------
Contour format
---------------------
| contlen | Fullword integer
---------------------
| seglist | 'ncurve' x segment
/ /
/ /
---------------------
Segment format
---------------------
| seglen | Fullword integer
---------------------
| sgflag | sgtype | 2 halfword integers
---------------------
| segdef | Variable data
/ /
/ /
---------------------
This structure element defines a trimmed non-uniform B-spline surface of the specified u and v orders using the specified control points and knots.
---------------------
WORDS 1 | length | X'0132' | Element header
---------------------
2 | sflag | stflag | 2 halfword integers
---------------------
3 | uorder | Fullword integer
---------------------
4 | unumber | Fullword integer
---------------------
5 | vorder | Fullword integer
---------------------
6 | vnumber | Fullword integer
---------------------
7 | reserved1 | Fullword integer
---------------------
8 | reserved2 | Fullword integer
---------------------
9 | trimming | Variable-length field
/ /
---------------------
| uknots | 'u-number' + 'u-order'
/ / x
/ / short floating-point number
---------------------
| utess | 'u-number' - 'u-order'+1
/ / x
/ / short floating-point number
---------------------
| vknots | 'v-number' + 'v-order'
/ / x
/ / short floating-point number
---------------------
| vtess | 'v-number' - 'v-order'+1
/ / x
/ / short floating-point number
---------------------
| clist | 'u-number' x 'v-number'
/ / x
/ / Control point 3
---------------------
Trimming format
---------------------
| trimlen | Fullword integer
---------------------
| contlist | 'ncontour' x contour
/ /
/ /
---------------------
Contour format
---------------------
| contlen | Fullword integer
---------------------
| seglist | 'ncurve' x segment
/ /
/ /
---------------------
Segment format
---------------------
| seglen | Fullword integer
---------------------
| sgflag | sgtype | 2 halfword integers
---------------------
| segdef | Variable data
/ /
/ /
---------------------
This structure element defines a sphere or a sequence of spheres in modeling space.
---------------------
WORDS 1 | length | X'0138' | Element header
---------------------
2 | reserved | Fullword integer
---------------------
3 | spherelist |
/ /
/ /
---------------------
Spherelist format
---------------------
| point | 3 short floating-point numbers
---------------------
| radius | Short floating-point number
---------------------
This structure element defines a three-dimensional rectangular array of pixels in modeling space.
---------------------
WORDS 1 | length | X'010F' | Element header
---------------------
2-4 | point | 3 short floating-point numbers
---------------------
5 | nrows | Fullword integer
---------------------
6 | ncols | Fullword integer
---------------------
7 | pixels | 'nrows' x 'ncols'
/ / one-byte unsigned integers
/ /
---------------------
This structure element defines a two-dimensional rectangular array of pixels in modeling space.
---------------------
WORDS 1 | length | X'0110' | Element header
---------------------
2-4 | point | 2 short floating-point numbers
---------------------
5 | nrows | Fullword integer
---------------------
6 | ncols | Fullword integer
---------------------
7 | pixels | 'nrows' x 'ncols'
/ / one-byte unsigned integers
/ /
---------------------
This structure element specifies how each geometric entity should be processed in the hidden line, hidden surface removal process.
---------------------
WORDS 1 | length | X'004A' | Element header
---------------------
2 | HLHSRid | Fullword integer
---------------------
This structure element sets whether antialiasing is performed for consecutive primitives within a view depending on the antialiasing mode setting for the view.
--------------------------
WORDS 1 | length | X'0052' | Element header
--------------------------
2 | antid | Fullword integer
--------------------------
This structure element defines a mask used to enable or disable updates of the Z-buffer.
---------------------
WORDS 1 | length | X'0055' | Element header
---------------------
2 | mask | Fullword integer
---------------------
This structure element sets the current face lighting method. Subsequent lighting calculations are effected by this setting.
----------------------
WORDS 1 | length | X'0054' | Element header
----------------------
2 |face lighting method| Fullword integer
----------------------
This structure element supplies depth cue information to the workstation. The attributes defined in the entry control the depth cueing applied to subsequent primitives.
---------------------
WORDS 1 | length | X'0006' | Element header
---------------------
2 | index | Fullword integer
---------------------
This structure element sets an index into the color processing table on the workstation. The values in the entry are used when creating output primitives.
---------------------
WORDS 1 | length | X'0007' | Element header
---------------------
2 | index | Fullword integer
---------------------
This structure element sets the index into the workstation-dependent color table, which is used for highlighted primitives.
--------------------------
WORDS 1 | length | X'00E0' | Element header
--------------------------
2 |highlighting color index| Fullword integer
--------------------------
This structure element sets the direct color values to be used to render subsequent highlighted primitives.
---------------------
WORDS 1 | length | X'00E1' | Element header
---------------------
2-4 |highlighting color | 3 short floating-point numbers
| |
---------------------
This structure element allows an application to define the eligibility of a primitive for pickability (detectability), highlighting, and invisibility by associating it with a set of class names. During structure traversal, the specified class names are added to the current class set.
---------------------
WORDS 1 | length | X'00E2' | Element header
---------------------
2 | class name 1 | n x fullword integers
---------------------
| |
/ /
/ /
---------------------
| class name n |
---------------------
This structure element allows an application to define the eligibility of a primitive for pickability (detectability), highlighting, and invisibility by associating it with a set of class names. During structure traversal, the specified class names are removed from the current class set.
---------------------
WORDS 1 | length | X'00E3' | Element header
---------------------
2 | class name 1 | n x fullword integers
---------------------
| |
/ /
/ /
---------------------
| class name n |
---------------------
This structure element specifies vertex morphing factors which affect morphing of subsequent primitives supplied with vertex morphing vectors.
---------------------
WORDS 1 | length | X '0072' | Procedure header
---------------------
2 | flength | Fullword integer
---------------------
3 | fdata | flength x
/ / Short floating-point number
---------------------
This structure element specifies the source transparency coefficient used to blend subsequent primitives with previously rendered output.
---------------------
WORDS 1 | length | X'0065' | Procedure header
---------------------
2 | coeff | Short floating-point number
---------------------
This structure element specifies the source blending function and the destination blending function used to blend subsequent primitives with previously rendered output.
--------------------
WORDS 1 | length | X'0067' | Procedure header
--------------------
2 | srcf | Fullword integer
--------------------
3 | destf | Fullword integer
--------------------
This structure element specifies the direct color values to be used when highlighting using the Frame Buffer Comparison option WRITE_WHEN_NOT_EQUAL screen
---------------------
WORDS 1 | length | X'0075' | Element header
---------------------
2 | components | 3 floating point numbers
---------------------
This structure element specifies an entry in the workstation's rendering color table that contains the color to be used when highlighting using the Frame Buffer Comparison option WRITE_WHEN_NOT_EQUAL screen
---------------------
WORDS 1 | length | X'0076' | Element header
---------------------
2 | index | Fullword integer
---------------------
This structure element defines whether a particular attribute used for rendering a primitive should be from the BUNDLED or CURRENT_INDIVIDUAL attribute setting.
---------------------
WORDS 1 | length | X'0035' | Element header
---------------------
2 | asflist | n x ASFspec
/ /
/ /
---------------------
ASFspec format
--------------------------------------
|attribute identifier | ASF value | 2 halfword integers
--------------------------------------
This structure element determines how curves are to be tessellated for subsequent curve primitives during structure traversal.
---------------------
WORDS 1 | length | X'004C' | Element header
---------------------
2 | criteria | Fullword integer
---------------------
3 | cvalue | Short floating-point number
---------------------
This structure element enables the application to control the tessellation of the trimming curve as well as the surface in the area of the curve when rendering subsequent trimming surface primitives.
---------------------
WORDS 1 | length | X'0050' | Element header
---------------------
2 | criteria | Fullword integer
---------------------
3 | cvalue | Short floating-point number
---------------------
4 | uvalue | Short floating-point number
---------------------
5 | vvalue | Short floating-point number
---------------------
This value supplies edge culling information to the workstation, and is used when drawing polyhedron edge output primitives.
---------------------
WORDS 1 | length | X'004E' | Element header
---------------------
2 | mode | Fullword integer
---------------------
(Ref #92.) This structure element sets the current polyline bundle index to the specified value. All subsequent polyline primitives use the contents of the specified bundle table entry for all polyline attributes whose attribute source flag is set to BUNDLED screen
------------------------
WORDS 1 | length | X'0001' | Element header
------------------------
2 |polyline bundle index | Fullword integer
------------------------
This structure element sets the current line type to the specified value. All subsequent polyline primitives use this line type for drawing the primitive if the line type attribute source flag is set to INDIVIDUAL screen
---------------------
WORDS 1 | length | X'0008' | Element header
---------------------
2 | linetype | Fullword integer
---------------------
This structure element sets the polyline end type to the specified value.
---------------------
WORDS 1 | length | X'001F' | Element header
---------------------
2 | endtype | Fullword integer
---------------------
This structure element sets the current line width scale factor to the specified value. All subsequent polyline primitives use this value to determine the line width of lines to be drawn if the attribute source flag is set to INDIVIDUAL screen
--------------------------
WORDS 1 | length | X'0009' | Element header
--------------------------
2 | linewidth scale factor | Short floating-point number
--------------------------
This structure element sets the current polyline color index to the specified value. All subsequent polyline primitives use this color index for drawing the primitive if the polyline color index attribute source flag is set to INDIVIDUAL screen
------------------------
WORDS 1 | length | X'000A' | Element header
------------------------
2 | polyline color index | Fullword integer
------------------------
This structure element is used when drawing polyline output primitives. All subsequent polyline primitives use this value to determine the color of the output primitives if the polyline color attribute source flag is set to INDIVIDUAL screen
---------------------
WORDS 1 | length | X'0028' | Element header
---------------------
2-4 | polyline color | 3 short floating-point numbers
| |
---------------------
This structure element sets the current polyline shading method. This shading method is used at structure traversal time to render all subsequent Polyline with Data primitives with vertex colors defined. The vertex colors are interpolated through connecting polylines when the polyline shading method is 2=POLYLINE_SHADING_COLOR screen The i% sup th vertex color is used to color the i% sup th line when the polyline shading method is 1=POLYLINE_SHADING_NONE screen
---------------------
WORDS 1 | length | X'0062' | Element header
---------------------
2 | method | Fullword integer
---------------------
This structure element sets the current polymarker bundle index to the specified value. All subsequent polymarker primitives use the contents of the specified bundle table entry for all polymarker attributes whose attribute source flags are set to BUNDLED screen
--------------------------
WORDS 1 | length | X'0002' | Element header
--------------------------
2 | polymarker bundle index| Fullword integer
--------------------------
This structure element sets the current marker type. All subsequent polymarker primitives use this marker type for identifying each point if the marker type attribute source flag is set to INDIVIDUAL screen
---------------------
WORDS 1 | length | X'000B' | Element header
---------------------
2 | marker type | Fullword integer
---------------------
This structure element sets the current marker size scale factor. All subsequent polymarker primitives use this value to determine the size to draw the markers if the attribute source flag is set to INDIVIDUAL screen
---------------------------
WORDS 1 | length | X'000C' | Element header
---------------------------
2 |marker size scale factor | Short floating-point number
---------------------------
This structure element sets the current polymarker color index to the specified value. All subsequent polymarker primitives use this color index for drawing the primitive if the polymarker color index attribute source flag is set to INDIVIDUAL screen
--------------------------
WORDS 1 | length | X'000D' | Element header
--------------------------
2 | polymarker color index | Fullword integer
--------------------------
This structure element is used when drawing polymarker output primitives. All subsequent polymarker primitives use this value for drawing the primitive if the polymarker color attribute source flag is set to INDIVIDUAL.
---------------------
WORDS 1 | length | X'0029' | Element header
---------------------
2-4 | polymarker color | 3 short floating-point numbers
| |
---------------------
This structure element sets the current character height. All subsequent geometric text primitives will be drawn with this value for the character height.
---------------------
WORDS 1 | length | X'0013' | Element header
---------------------
2 | character height | Short floating-point number
---------------------
This structure element sets the value to be used to determine the height of the characters when rendering all subsequent character line primitives.
---------------------
WORDS 1 | length | X'0027' | Element header
---------------------
2 | line scale factor | Short floating-point number
---------------------
This structure element sets the current geometric text character up vector to the specified value. The base vector is set to 90[default] clockwise from the up vector. All subsequent geometric text primitives are drawn with this value for the character up vector. The character up vector specifies the direction of the font coordinate y-axis within the text reference coordinate system. The character base vector specifies the direction of the font coordinate x-axis with the text reference coordinate system.
---------------------
WORDS 1 | length | X'0014'| Element header
---------------------
2 | X direction | Short floating-point number
---------------------
3 | Y direction | Short floating-point number
---------------------
This structure element sets the current geometric text character up vector and base vector to the specified value. The character up vector specifies the direction of the font coordinate y-axis within the text reference coordinate system. The character base vector specifies the direction of the font coordinate x-axis with the text reference coordinate system.
---------------------
WORDS 1 | length | X'0026' | Element header
---------------------
2 | up X-direction | Short floating-point number
---------------------
3 | up Y-direction | Short floating-point number
---------------------
4 | base X-direction | Short floating-point number
---------------------
5 | base Y-direction | Short floating-point number
---------------------
This structure element sets the current geometric text path to the specified value. All subsequent geometric text primitives are drawn with this value for the text path.
---------------------
WORDS 1 | length | X'0015' | Element header
---------------------
2 | text path | Fullword integer
---------------------
This structure element sets the current geometric text alignment to the specified value. All subsequent geometric text primitives are drawn with this value for text alignment.
---------------------
WORDS 1 | length | X'0017' | Element header
---------------------
2 | horizontal | Fullword integer
---------------------
3 | vertical | Fullword integer
---------------------
This structure element sets the current character positioning mode entry to the specified value. The character positioning mode determines whether the character positioning box for the specific character or the nominal positioning box for the font should be used in rendering annotation and geometric text primitives.
---------------------
WORDS 1 | length | X'0016' | Element header
---------------------
2 | mode | Fullword integer
---------------------
This structure element sets the current text bundle index to the specified value. All subsequent annotation and geometric text primitives use the contents of the specified bundle table entry for all text attributes whose attribute source flags are set to BUNDLED screen
---------------------
WORDS 1 | length | X'0003' | Element header
---------------------
2 | text bundle index | Fullword integer
---------------------
This structure element sets the current text font to the specified value. All subsequent annotation and geometric text primitives are drawn in this font if the text font attribute source flag is set to INDIVIDUAL screen
---------------------
WORDS 1 | length | X'000E' | Element header
---------------------
2 | text font | Fullword integer
---------------------
This structure element sets the current text precision to the specified value. All subsequent annotation and geometric text primitives are drawn at this precision if the text precision attribute source flag is set to INDIVIDUAL screen
---------------------
WORDS 1 | length | X'000F' | Element header
---------------------
2 | text precision | Fullword integer
---------------------
This structure element specifies the width of a geometric text primitive's lines (strokes) as a fraction of the nominal text width. The device support multiplies this scale factor times the nominal linewidth on the corresponding device to determine the requested width. The calculated value is then mapped to the closest width available on the device. A scale factor of 1.0 generates a nominal size text line on any workstation. At structure traversal, this scale factor is used, when the text line width factor ASF is set to INDIVIDUAL screen
---------------------
WORDS 1 | length | X'0077' | Element header
---------------------
2 | lwidth | Floating point
--------------------- number
This structure element sets the current character expansion factor. It indicates the deviation of the character's width/height ratio from the font default. All subsequent annotation and geometric text primitives are drawn with this value for the character expansion factor if its attribute source flag is set to INDIVIDUAL screen
------------------------------
WORDS 1 | length | X'0010' | Element header
------------------------------
2 | character expansion factor | Short floating-point number
------------------------------
This structure element sets the current character spacing, indicating the additional amount of space to be placed between characters as a fraction of the character's design. All subsequent annotation and geometric text primitives are drawn with this value for the character spacing if its attribute source flag is set to INDIVIDUAL screen
---------------------
WORDS 1 | length | X'0011' | Element header
---------------------
2 | character spacing | Short floating-point number
---------------------
This structure element sets the text color index to the specified value. All subsequent annotation and geometric text primitives use this color index for drawing the primitive if the text color index attribute source flag is set to INDIVIDUAL screen
---------------------
WORDS 1 | length | X'0012' | Element header
---------------------
2 | text color index | Fullword integer
---------------------
This structure element sets the current text color to the specified value. All subsequent annotation and geometric text primitives use the direct color values for drawing the primitive if the text color attribute source flag is set to INDIVIDUAL screen
---------------------
WORDS 1 | length | X'002A' | Element header
---------------------
2-4 | text color | 3 short floating-point numbers
| |
---------------------
This structure element sets the current annotation height scale factor, specifying a ratio of the annotation character height to the workstation's nominal character height. All subsequent annotation text primitives are drawn with this value for the height scale factor.
---------------------
WORDS 1 | length | X'0021' | Element header
---------------------
2 | annotation height | Short floating-point number
| scale factor |
---------------------
This structure element sets the current annotation height to the specified value.
---------------------
WORDS 1 | length | X'0022' | Element header
---------------------
2 | annotation height | Short floating-point number
---------------------
This structure element sets the text style determining how the Annotation Text Relative 2/3 primitives are to be visualized. This style value is used at the structure traversal time to render all subsequent annotation text relative primitives.
-----------------------------
WORDS 1 | length | X'0020' | Element header
-----------------------------
2 | style | Fullword integer
-----------------------------
This structure element sets the current annotation text character up vector to the specified value.
---------------------
WORDS 1 | length | X'0023' | Element header
---------------------
2 | X direction | Short floating-point number
---------------------
3 | Y direction | Short floating-point number
---------------------
This structure element sets the current annotation text path to the specified value.
---------------------
WORDS 1 | length | X'0024' | Element header
---------------------
2 | annotation path | Fullword integer
---------------------
This structure element sets the current annotation text alignment to the specified value, affecting the manner in which the annotation text extent rectangle is positioned in relation to the text position.
---------------------
WORDS 1 | length | X'0025' | Element header
---------------------
2 | horizontal | Fullword integer
---------------------
3 | vertical | Fullword integer
---------------------
This structure element sets the current surface approximation criteria to the specified value.
---------------------
WORDS 1 | length | X'004D' | Element header
---------------------
2 | criteria | Fullword integer
---------------------
3 | uvalue | Short floating-point number
---------------------
4 | vvalue | Short floating-point number
---------------------
This structure element sets the current polygon culling mode to the specified value. This value is used when rendering polygon output primitives, and supplies polygon culling information to the workstation.
---------------------
WORDS 1 | length | X'0045' | Element header
---------------------
2 | mode | Fullword integer
---------------------
This structure element sets the current face distinguish mode to the specified value.
---------------------
WORDS 1 | length | X'0048' | Element header
---------------------
2 | mode | Fullword integer
---------------------
This structure element adds light source indices specified in the activation list to the current light source state and removes those in the deactivation list.
---------------------
WORDS 1 | length | X'0049' | Element header
---------------------
2 | dnum | Fullword integer
---------------------
3 | anum | Fullword integer
---------------------
4 | dlist | 'dnum' x fullword integers
/ /
/ /
---------------------
| alist | 'anum' x fullword integers
/ /
/ /
---------------------
This structure element sets the current lighting calculation mode to the specified value. This value is used when creating polygon output primitives and supplies lighting information to the workstation.
---------------------
WORDS 1 | length | X'004F' | Element header
---------------------
2 | mode | Fullword integer
---------------------
This structure element specifies an index into the interior bundle table, affecting only those attributes for which the ASF is set to BUNDLED. All subsequent polygon primitives use the contents of the specified bundle table entry for all interior attributes whose attribute source flags are set to BUNDLED screen
------------------------
WORDS 1 | length | X'0005' | Element header
------------------------
2 |interior bundle index | Fullword integer
------------------------
This structure element sets the current interior style to the specified value. This value is used when drawing polygon output primitives. All subsequent primitives use this attribute when drawing the interior if the corresponding attribute source flag is set to INDIVIDUAL.
---------------------
WORDS 1 | length | X'0018' | Element header
---------------------
2 | style | Fullword integer
---------------------
This structure element sets the current interior style index, specifying an index into the pattern table or the workstation-dependent hatch table (depending on the setting of the interior style). All subsequent primitives use this attribute when drawing the interior if the corresponding attribute source flag is set to INDIVIDUAL and the current interior style is HATCH or PATTERN.
---------------------
WORDS 1 | length | X'0019' | Element header
---------------------
2 | index | Fullword integer
---------------------
This structure element sets the current interior color index to the specified color index. All subsequent primitives use this attribute when drawing the interior if the corresponding attribute source flag is set to INDIVIDUAL and the current interior style is SOLID or HATCH screen
----------------------
WORDS 1 | length | X'001A' | Element header
----------------------
2 |interior color index| Fullword integer
----------------------
This structure element sets the current interior color to the specified value. It is used when creating output primitives. All subsequent primitives use this direct color value when drawing the interior if the corresponding attribute source flag is set to INDIVIDUAL and the current interior style is set to SOLID or HATCH.
---------------------
WORDS 1 | length | X'002B' | Element header
---------------------
2-4 | interior color | 3 short floating-point numbers
| |
---------------------
This structure element sets the current back interior color index to the specified color index. All subsequent primitives use this attribute when drawing the back interior if the corresponding attribute source flag is set to INDIVIDUAL and the current interior style is set to SOLID or HATCH and face distinguish mode is set to use the back color attribute.
---------------------
WORDS 1 | length | X'003F' | Element header
---------------------
2 |back interior color| Fullword integer
| index |
---------------------
This structure element sets the current back interior color to the specified value. This value is used when drawing polygon output primitives. All subsequent primitives use this direct color value when drawing the back interior if the corresponding attribute source flag is set to INDIVIDUAL and the current interior style is set to SOLID or HATCH and face distinguish mode is set to use the back color attribute.
---------------------
WORDS 1 | length | X'0040' | Element header
---------------------
2-4 | back interior | 3 short floating-point numbers
| color |
---------------------
This structure element sets the current specular color index to the specified color value for area defining geometries in lighting calculations.
---------------------
WORDS 1 | length | X'0041' | Element header
---------------------
2 | specular color | Fullword integer
| index |
---------------------
This structure element sets the current specular color to the specified value for area defining geometries in lighting calculations.
---------------------
WORDS 1 | length | X'0042' | Element header
---------------------
2-4 | specular color | 3 short floating-point numbers
| |
---------------------
This structure element sets the current back specular color index to the specified value for area defining geometries in lighting calculations.
---------------------
WORDS 1 | length | X'0043' | Element header
---------------------
2 | back specular | Fullword integer
| color index |
---------------------
This structure element sets the current back specular color to the specified value for area defining geometries in lighting calculations.
---------------------
WORDS 1 | length | X'0044' | Element header
---------------------
2-4 |back specular color| 3 short floating-point numbers
| |
---------------------
This structure element sets the current surface properties to the specified values.
---------------------
WORDS 1 | length | X'0046' | Element header
---------------------
2 | ambient | Short floating-point number
---------------------
3 | diffuse | Short floating-point number
---------------------
4 | specular | Short floating-point number
---------------------
5 | exponent | Short floating-point number
---------------------
6 | transparent | Short floating-point number
---------------------
This structure element sets the current back surface properties to the specified values.
---------------------
| length | X'0047' | Element header
---------------------
2 | ambient | Short floating-point number
---------------------
3 | diffuse | Short floating-point number
---------------------
4 | specular | Short floating-point number
---------------------
5 | exponent | Short floating-point number
---------------------
6 | transparent | Short floating-point number
---------------------
This structure element specifies the source transparency coefficient used to blend subsequent back facing portions of area primitives with previously rendered output.
---------------------
WORDS 1 | length | X'0066' | Procedure header
---------------------
2 | coeff | Short floating-point number
---------------------
This structure element specifies the source blending function and the destination blending function used to blend subsequent back facing portions of area primitives with previously rendered output.
--------------------
WORDS 1 | length | X'0068' | Procedure header
--------------------
2 | srcf | Fullword integer
--------------------
3 | destf | Fullword integer
--------------------
This structure element sets the characteristics for rendering parametric surfaces in wireframe.
---------------------
WORDS 1 | length | X'0051' | Element header
---------------------
2 | type | Fullword integer
---------------------
for type=ISOPARAMETRIC LINES
---------------------
WORDS 1 | scope | Fullword integer
---------------------
2 | number of | Fullword integer
| isoparametrics |
| in u direction |
---------------------
3 | number of | Fullword integer
| isoparametrics |
| in v direction |
---------------------
This structure element supplies data morphing factors which affect morphing of subsequent primitives supplied with data morphing vectors.
---------------------
WORDS 1 | length | X '0073' | Procedure header
---------------------
2 | flength | Fullword integer
---------------------
3 | fdata | flength x
/ / Short floating-point number
---------------------
This structure element supplies back data morphing factors which affect morphing of subsequent back facing portions of area primitives supplied with data morphing vectors.
---------------------
WORDS 1 | length | X '0074' | Procedure header
---------------------
2 | flength | Fullword integer
---------------------
3 | fdata | flength x
/ / Short floating-point number
---------------------
This structure element specifies an entry in the workstation's data mapping table which contains values used to data map subsequent area primitives.
---------------------
WORDS 1 | length | X '006C' | Procedure header
---------------------
2 | index | Fullword integer
---------------------
This structure element specifies an entry in the workstation's data mapping table which contains values used to data map subsequent back facing portions of area primitives.
---------------------
WORDS 1 | length | X '006D' | Procedure header
---------------------
2 | index | Fullword integer
---------------------
This structure element specifies the filtering methods used when performing data mapping.
---------------------
WORDS 1 | length | X '006E' | Procedure header
---------------------
2 | minfm | Fullword integer
---------------------
3 | magfm | Fullword integer
---------------------
4 | boundu | Fullword integer
---------------------
5 | boundv | Fullword integer
---------------------
This structure element specifies the filtering methods used when performing data mapping. These values are used when rendering back facing portions of subsequent area primitives.
---------------------
WORDS 1 | length | X '006F' | Procedure header
---------------------
2 | minfm | Fullword integer
---------------------
3 | magfm | Fullword integer
---------------------
4 | boundu | Fullword integer
---------------------
5 | boundv | Fullword integer
---------------------
This structure element specifies a matrix used to modify the data mapping values specified in certain primitives that support data mapping.
----------------------------
WORDS 1 | length | X'0070' | Procedure header
----------------------------
2-10 |row 1 col 1 matrix element| Short floating-point number
----------------------------
|row 1 col 2 matrix element| Short floating-point number
----------------------------
|row 1 col 3 matrix element| Short floating-point number
----------------------------
|row 2 col 1 matrix element| Short floating-point number
----------------------------
|row 2 col 2 matrix element| Short floating-point number
----------------------------
|row 2 col 3 matrix element| Short floating-point number
----------------------------
|row 3 col 1 matrix element| Short floating-point number
----------------------------
|row 3 col 2 matrix element| Short floating-point number
----------------------------
|row 3 col 3 matrix element| Short floating-point number
----------------------------
This structure element specifies a matrix used to modify the data mapping values on back facing portions of certain primitives that support data mapping.
----------------------------
WORDS 1 | length | X'0071' | Element header
----------------------------
2-10 |row 1 col 1 matrix element| Short floating-point number
----------------------------
|row 1 col 2 matrix element| Short floating-point number
|row 1 col 3 matrix element| Short floating-point number
----------------------------
|row 2 col 1 matrix element| Short floating-point number
----------------------------
|row 2 col 2 matrix element| Short floating-point number
----------------------------
|row 2 col 3 matrix element| Short floating-point number
----------------------------
|row 3 col 1 matrix element| Short floating-point number
----------------------------
|row 3 col 2 matrix element| Short floating-point number
----------------------------
|row 3 col 3 matrix element| Short floating-point number
----------------------------
This structure element specifies the method which is used to control the lighting calculations performed on subsequent area primitives.
---------------------
WORDS 1 | length | X '0063' | Element header
---------------------
2 | model | Fullword integer
---------------------
This structure element specifies the method which is used to control the lighting calculations performed on back facing portions of subsequent area primitives.
---------------------
WORDS 1 | length | X '0069' | Element header
---------------------
2 | model | Fullword integer
---------------------
This structure element specifies the method to shade the interior of subsequent area primitives.
---------------------
WORDS 1 | length | X '006A' | Procedure header
---------------------
2 | method | Fullword integer
---------------------
This structure element specifies the method to shade the interior of back facing portions of subsequent area primitives.
---------------------
WORDS 1 | length | X '006B' | Procedure header
---------------------
2 | method | Fullword integer
---------------------
This structure element sets the edge bundle index to the specified value. All subsequent polygon primitives use the contents of the specified bundle table entry for all edge attributes whose attribute source flags are set to BUNDLED screen
---------------------
WORDS 1 | length | X'0004' | Element header
---------------------
2 | edge bundle index | Fullword integer
---------------------
This structure element sets the visibility of edges. All subsequent primitives use this attribute to determine whether the edges should be drawn if the attribute source flag is set to INDIVIDUAL screen
---------------------
WORDS 1 | length | X'001B' | Element header
---------------------
2 | edge flag | Fullword integer
---------------------
This structure element sets the current edge line type to the specified value. All subsequent primitives use this edge line type for drawing the primitive if the edge line type attribute source flag is set to INDIVIDUAL and the edge flag is set to ON screen
---------------------
WORDS 1 | length | X'001C' | Element header
---------------------
2 | edge linetype | Fullword integer
---------------------
This structure element sets the current edge scale factor to the specified value. All subsequent primitives use this value to determine the width of the edges to be drawn if the attribute source flag is set to INDIVIDUAL and the edge flag is set to ON screen
---------------------
WORDS 1 | length | X'001E' | Element header
---------------------
2 | edge scale factor | Short floating-point number
---------------------
This structure element sets the current edge color index to the specified value. All subsequent primitives use this color index for drawing the edges if the edge color index attribute source flag is set to INDIVIDUAL and the edge flag is set to ON screen
---------------------
WORDS 1 | length | X'001D' | Element header
---------------------
2 | edge color index | Fullword integer
---------------------
This structure element sets the current edge color entry to the specified value. All subsequent output primitives use the direct color values for drawing the edges if the edge color direct attribute source flag is set to INDIVIDUAL and the edge flag is set to ON screen
---------------------
WORDS 1 | length | X'002C' | Element header
---------------------
2-4 | edge color | 3 short floating-point numbers
| |
---------------------
This structure element specifies a global modeling transformation in three-dimensional modeling space, causing the specified value to become the current global transformation for the current structure.
----------------------------
WORDS 1 | X'0044' | X'00D2' | Element header
----------------------------
2-17 |row 1 col 1 matrix element| Short floating-point number
----------------------------
|row 1 col 2 matrix element| Short floating-point number
----------------------------
|row 1 col 3 matrix element| Short floating-point number
----------------------------
|row 1 col 4 matrix element| Short floating-point number
----------------------------
|row 2 col 1 matrix element| Short floating-point number
----------------------------
|row 2 col 2 matrix element| Short floating-point number
----------------------------
|row 2 col 3 matrix element| Short floating-point number
----------------------------
|row 2 col 4 matrix element| Short floating-point number
----------------------------
|row 3 col 1 matrix element| Short floating-point number
----------------------------
|row 3 col 2 matrix element| Short floating-point number
----------------------------
|row 3 col 3 matrix element| Short floating-point number
----------------------------
|row 3 col 4 matrix element| Short floating-point number
----------------------------
|row 4 col 1 matrix element| Short floating-point number
----------------------------
|row 4 col 2 matrix element| Short floating-point number
----------------------------
|row 4 col 3 matrix element| Short floating-point number
----------------------------
|row 4 col 4 matrix element| Short floating-point number
----------------------------
This structure element specifies a global modeling transformation in two-dimensional modeling space, causing the specified value to become the current global transformation for the current structure.
----------------------------
WORDS 1 | X'0028' | X'00D3' | Element header
----------------------------
2-10 |row 1 col 1 matrix element| Short floating-point number
----------------------------
|row 1 col 2 matrix element| Short floating-point number
----------------------------
|row 1 col 3 matrix element| Short floating-point number
----------------------------
|row 2 col 1 matrix element| Short floating-point number
----------------------------
|row 2 col 2 matrix element| Short floating-point number
----------------------------
|row 2 col 3 matrix element| Short floating-point number
----------------------------
|row 3 col 1 matrix element| Short floating-point number
----------------------------
|row 3 col 2 matrix element| Short floating-point number
----------------------------
|row 3 col 3 matrix element| Short floating-point number
----------------------------
(Ref #93.) This structure element specifies a modification for a local modeling transformation in three-dimensional modeling space. The specified matrix either replaces, is pre-concatenated with, or is post-concatenated with the current local modeling transformation.
----------------------------
WORDS 1 | length | X'00D0' | Element header
----------------------------
2 | composition type | Fullword integer
----------------------------
3-18 |row 1 col 1 matrix element| Short floating-point number
----------------------------
|row 1 col 2 matrix element| Short floating-point number
----------------------------
|row 1 col 3 matrix element| Short floating-point number
----------------------------
|row 1 col 4 matrix element| Short floating-point number
----------------------------
|row 2 col 1 matrix element| Short floating-point number
----------------------------
|row 2 col 2 matrix element| Short floating-point number
----------------------------
|row 2 col 3 matrix element| Short floating-point number
----------------------------
|row 2 col 4 matrix element| Short floating-point number
----------------------------
|row 3 col 1 matrix element| Short floating-point number
----------------------------
|row 3 col 2 matrix element| Short floating-point number
----------------------------
|row 3 col 3 matrix element| Short floating-point number
----------------------------
|row 3 col 4 matrix element| Short floating-point number
----------------------------
|row 4 col 1 matrix element| Short floating-point number
----------------------------
|row 4 col 2 matrix element| Short floating-point number
----------------------------
|row 4 col 3 matrix element| Short floating-point number
----------------------------
|row 4 col 4 matrix element| Short floating-point number
----------------------------
This structure element specifies a modification for a local modeling transformation in two-dimensional modeling space. The specified matrix either replaces, is pre-concatenated with, or is post-concatenated with the current local modeling transformation.
----------------------------
WORDS 1 | X'002C' | X'00D1' | Element header
----------------------------
2 | composition type | Fullword integer
----------------------------
3-11 |row 1 col 1 matrix element| Short floating-point number
----------------------------
|row 1 col 2 matrix element| Short floating-point number
----------------------------
|row 1 col 3 matrix element| Short floating-point number
----------------------------
|row 2 col 1 matrix element| Short floating-point number
----------------------------
|row 2 col 2 matrix element| Short floating-point number
----------------------------
|row 2 col 3 matrix element| Short floating-point number
----------------------------
|row 3 col 1 matrix element| Short floating-point number
----------------------------
|row 3 col 2 matrix element| Short floating-point number
----------------------------
|row 3 col 3 matrix element| Short floating-point number
----------------------------
This structure element indicates whether or not to perform modeling clipping on subsequent primitives.
---------------------
WORDS 1 | length | X'00D6' | Procedure header
---------------------
2 | indicator | Fullword integer
---------------------
This structure element causes the current modeling clipping volume in the traversal state list to be restored to the volume inherited by that structure.
---------------------
WORDS 1 | length | X'00D7' | Procedure header
---------------------
This structure element sets the current modeling clipping volume in the traversal state list.
---------------------
WORDS 1 | length | X'00D4' | Procedure header
---------------------
2 | operator | Fullword integer
---------------------
3 | number | Fullword integer
---------------------
4 - n | lhspace | number x half_space
---------------------
Half_space format
---------------------
| point | Point 3
---------------------
| normal | Vector 3
---------------------
This structure element sets the current modeling clipping volume in the traversal state list.
---------------------
WORDS 1 | length | X'00D5' | Procedure header
---------------------
2 | operator | Fullword integer
---------------------
3 | number | Fullword integer
---------------------
4 - n | lhspace | number x half_space
---------------------
Half_space format
---------------------
| point | Point 2
---------------------
| normal | Vector 2
---------------------
This structure element defines a view index to replace the current view index. The view index specifies an entry in the workstation's view table from which to select view orientation and mapping transformations.
---------------------
WORDS 1 | length | X'0008' | Element header
---------------------
2 | index | Fullword integer
---------------------
| reserved | Fullword integer
---------------------
This structure element defines a call or invocation of another structure, relating two structures.
---------------------
WORDS 1 | length | X'00FA' | Element header
---------------------
2 | structure id | Fullword integer
---------------------
3 | reserved | Fullword integer
---------------------
4 | reserved | Fullword integer
---------------------
This structure element modifies the cull flag (30th bit) and the prune flag (31st bit) within the current set of condition flags. These flags are used when processing subsequent conditional execute structure elements and conditional return elements.
---------------------
WORDS 1 | length | X'00F1' | Element header
---------------------
2-4 | corner1 | 3 short floating-point numbers
| |
---------------------
5-7 | corner2 | 3 short floating-point numbers
| |
---------------------
8 | cull table index | Fullword integer
---------------------
This structure element modifies the cull flag (30th bit) and the prune flag (31st bit) within the current set of condition flags. These flags are used when processing subsequent conditional execute structure elements and conditional return elements.
---------------------
WORDS 1 | length | X'00F2' | Element header
---------------------
2-3 | corner1 | 2 short floating-point numbers
| |
---------------------
4-5 | corner2 | 2 short floating-point numbers
| |
---------------------
6 | cull table index | Fullword integer
---------------------
This structure element modifies the current condition flag with the specified value.
---------------------
WORDS 1 | length | X'00F3' | Element header
---------------------
2 | onflag | Fullword integer
---------------------
3 | offflag | Fullword integer
---------------------
This structure element specifies a conditional call or invocation of another structure. The current set of condition flags are tested against the specified mask and conditionscreen If the condition is satisfied, the target structure is invoked.
---------------------
WORDS 1 | length | X'00FE' | Element header
---------------------
2 | mask | Fullword integer
---------------------
3 | condition | Fullword integer
---------------------
4 | type | Fullword integer
---------------------
5 | structure id | Fullword integer
---------------------
6 | reserved | Fullword integer
---------------------
7 | reserved | Fullword integer
---------------------
This structure element specifies a conditional return to the parent structure.
---------------------
WORDS 1 | length | X'00F0' | Element header
---------------------
2 | mask | Fullword integer
---------------------
3 | condition | Fullword integer
---------------------
This structure element defines a label that the application uses to reference and modify structure elements.
---------------------
WORDS 1 | length | X'00FB' | Element header
---------------------
2 | label | Fullword integer
---------------------
3 | reserved | Fullword integer
---------------------
This structure element sets the current pick identifier to the specified value.
---------------------
WORDS 1 | length | X'00FC' | Element header
---------------------
2 | pickid | Fullword integer
---------------------
3 | reserved | Fullword integer
---------------------
This structure element sets the current frame buffer write protect mask to the specified value.
---------------------
WORDS 1 | length | X'0031' | Element header
---------------------
2 | write protect mask| Fullword integer
---------------------
This structure element sets the current frame buffer comparison to the specified value.
---------------------
WORDS 1 | length | X'0032' | Element header
---------------------
2 | type | Fullword integer
---------------------
3 | comparison mask | Fullword integer
---------------------
4 | comparison value | Fullword integer
---------------------
This structure element allows the insertion of application specific data into a structure element. The data is ignored during traversal. The element is padded to a fullword boundary following the application defined data.
---------------------
WORDS 1 | length | X'00E4' | Element header
---------------------
2 | length | Fullword integer
---------------------
3 | application | Byte string
/ defined data /
/ /
---------------------
This structure element defines a null data position in a structure. The data is iqnored during traversal.
---------------------
WORDS 1 | length | X'00E5' | Element header
---------------------
This structure element defines data the application is sending directly to the workstation.
---------------------
WORDS 1 | length | X'00F6' | Element header
---------------------
2 | length | Fullword integer
---------------------
3 | application | Byte string
/ defined data /
/ /
---------------------