graPHIGS Programming Interface: Subroutine Reference

The graPHIGS Programming Interface : Subroutine Reference

GPQXMR - Inquire Extended Polymarker Representation

GPQXMR (wsid, index, type, number, ids, errind, data)

Note:

This subroutine is a Workstation State List (WSL) inquiry. For an overview, see "WSL Inquiries"

Purpose

Use GPQXMR to inquire the current values of one or more fields in the specified polymarker bundle table entry in the specified workstation's polymarker bundle table.

If the inquired information is available, then the graPHIGS API sets the error indicator to zero and returns the values in the output parameters. The output parameter must be large enough to store all requested data. If the inquired information is unavailable, then the error indicator (errind) contains an error number indicating the reason, and the values returned in the output parameters are unpredictable.

Parameters

wsid -- specified by user, fullword integer

Workstation identifier.

index -- specified by user, fullword integer

Polymarker bundle table index (>=1)

type -- specified by user, fullword integer

Type of returned value ( 1=SET )

number -- specified by user, fullword integer

Number of group identifiers requested (>=1)

ids -- specified by user, array of fullword integers

A list of group identifiers requested.

errind -- returned by the graPHIGS API, fullword integer

Error indicator. If the error indicator is zero, the request has been completed. Otherwise, one of the following errors exists:

25: SPECIFIED WORKSTATION DOES NOT EXIST
35: WORKSTATION HAS ONLY INPUT CAPABILITIES
43: BUNDLE INDEX EXCEEDS WORKSTATION TABLE CAPACITY
60: BUNDLE INDEX VALUE < ONE
272: GROUP IDENTIFIER IS INVALID
273: NUMBER OF GROUP IDENTIFIERS < ONE
534: TYPE VALUE IS INVALID

data -- returned by the graPHIGS API, variable data

Data array containing the values in the requested groups.

Group Identifier 1 - Marker type table index

A fullword integer (>=1) Specifies an index into the workstation's marker type table. The size and specific entries supported are workstation dependent. The default marker type table for supported entries is defined with the following marker types: (1=DOT, 2=PLUS_SIGN, 3=ASTERISK, 4=CIRCLE, 5=DIAGONAL_CROSS, 6-n=ASTERISK )

Group Identifier 2 - Marker size scale factor

A short floating-point number.

Group Identifier 3 - Polymarker color

Four fullwords of data with either of the following two formats:

   indexed format                       direct format
    -------------                       -------------
  0 |          1| fullword integer    0 |          2| fullword integer
    |-----------|                       |-----------|
  4 |color index| fullword integer    4 |component 1| short floating-point number
    |-----------|                       |-----------|
  8 |   reserved| fullword integer    8 |component 2| short floating-point number
    |-----------|                       |-----------|
 12 |   reserved| fullword integer   12 |component 3| short floating-point number
    -------------                       -------------

Error Codes

None

Related Subroutines

GPXPMR: Set Extended Polymarker Representation

RCP code

201339157 ( X'0C003115')