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vpTranslate

vpTranslate

Section: C Library Functions (3) Updated:
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NAME

vpTranslate - multiply the current transformation matrix by a translation matrix  

SYNOPSIS

#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)


 

Index

NAME
SYNOPSIS
ARGUMENTS
DESCRIPTION
STATE VARIABLES
ERRORS
SEE ALSO

This document was created by man2html, using the manual pages.
Time: 21:57:45 GMT, April 16, 2011