Translate3
Multiply the current transformation matrix by a translation matrix
Usage
#include <volpack.h>
vpResult
vpTranslate(vpc, tx, ty, tz)
-
vpContext *vpc;
-
double *tx, *ty, *tz;
Arguments
vpc
|
VolPack context from |
|---|---|
tx
|
X component of translation vector. |
ty
|
Y component of translation vector. |
tz
|
Z component of translation vector. |
Overview
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.
Releases
9 releases since Debian 5.0 (Lenny); the text changed 1 time.