Query: gluproject
OS: centos
Section: 3g
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
GLUPROJECT(3G) OpenGL Manual GLUPROJECT(3G)NAMEgluProject - map object coordinates to window coordinatesC SPECIFICATIONGLint gluProject(GLdouble objX, GLdouble objY, GLdouble objZ, const GLdouble * model, const GLdouble * proj, const GLint * view, GLdouble* winX, GLdouble* winY, GLdouble* winZ);PARAMETERSobjX, objY, objZ Specify the object coordinates. model Specifies the current modelview matrix (as from a glGetDoublev() call). proj Specifies the current projection matrix (as from a glGetDoublev() call). view Specifies the current viewport (as from a glGetIntegerv() call). winX, winY, winZ Return the computed window coordinates.DESCRIPTIONgluProject transforms the specified object coordinates into window coordinates using model, proj, and view. The result is stored in winX, winY, and winZ. A return value of GLU_TRUE indicates success, a return value of GLU_FALSE indicates failure. To compute the coordinates, let v = objX objY objZ 1.0 represented as a matrix with 4 rows and 1 column. Then gluProject computes v '' as follows: v '' = P x M x v where P is the current projection matrix proj and M is the current modelview matrix model (both represented as 4 x 4 matrices in column-major order). The window coordinates are then computed as follows: winX = view 0 + view 2 x v '' 0 + 1 2.PP winY = view 1 + view 3 x v '' 1 + 1 2.PP winZ = v '' 2 + 1 2SEE ALSOgluUnProject(), glGet()COPYRIGHTCopyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.AUTHORSopengl.org opengl.org 06/10/2014 GLUPROJECT(3G)
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gluproject(3g) - mojave |
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gluproject(3g) - redhat |
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gluproject(3g) - osx |
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