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vpTranslate
Langue: en
Version: 378336 (fedora - 01/12/10)
Section: 3 (Bibliothèques de fonctions)
NAME
vpTranslate - multiply the current transformation matrix by a translation matrixSYNOPSIS
#include <volpack.h>vpResult
- vpTranslate(vpc, tx, ty, tz)
- vpContext *vpc;
- double *tx, *ty, *tz;
ARGUMENTS
- vpc
- VolPack context from vpCreateContext.
- tx
- X component of translation vector.
- ty
- Y component of translation vector.
- tz
- Z component of translation vector.
DESCRIPTION
vpTranslate is used to multiply the current transformation matrix by a 4-by-4 translation matrix. The translation matrix is:- 1 0 0 tx
0 1 0 ty
0 0 1 tz
0 0 0 1
Use vpCurrentMatrix to set the current transformation matrix. By default, the transformation matrix is post-multiplied (M = M*T where M is the current matrix and T is the translation matrix). The VP_CONCAT_MODE option to vpSeti can be used to select pre-multiplication.
STATE VARIABLES
The current matrix concatenation parameters can be retrieved with the following state variable codes (see vpGeti(3)): VP_CURRENT_MATRIX, VP_CONCAT_MODE.ERRORS
The return value is always VP_OK.SEE ALSO
VolPack(3), vpCreateContext(3), vpCurrentMatrix(3)Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre