Loads a transformation matrix.
FORTRAN (libfgl.a)
void loadmatrix(Matrix matrix)
SUBROUTINE LOADMA(matrix) REAL matrix(4,4)
The loadmatrix subroutine loads a 4x4 floating point matrix onto the transformation stack, replacing the current top matrix. If the system is in projection matrix mode (mmode(MPROJ);), the projection matrix is replaced.
Be sure to exit projection matrix mode before performing any drawing because drawing is not enabled while in this mode.
Note: The operation of this subroutine for the Supergraphics Processor Subsystem is modified. (See "Hardware Considerations" in GL3.2 Version 4 for AIX: Programming Concepts.)
| matrix | Specifies the matrix to be loaded onto the matrix stack. |
After changing the matrix mode to MVIEWING with the mmode subroutine, the example C language program localatten.c uses the loadmatrix subroutine to load the modelling/viewing matrix with the identity matrix.
This subroutine is part of GL in the AIXwindows Environment/6000 Version 1, Release 2 with AIXwindows/3D Feature.
| /usr/include/gl/gl.h | Contains C language constant and variable type definitions for GL. |
| /usr/include/gl/fgl.h | Contains FORTRAN constant and variable type definitions for GL. |
Setting the current matrix mode with the mmode subroutine.
Getting a copy of the current transformation matrix with the getmatrix subroutine.
Premultiplying the current transformation matrix with the multmatrix subroutine.
Popping the transformation matrix stack with the popmatrix subroutine.
Pushing down the transformation matrix stack with the pushmatrix subroutine.
AIX Graphics Library Overview, Working with Coordinate Systems.