GLRECT() GLRECT() NAME glRectd, glRectf, glRecti, glRects, glRectdv, glRectfv, glRectiv, glRectsv - draw a rectangle C SPECIFICATION void glRectd( GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2 ) void glRectf( GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2 ) void glRecti( GLint x1, GLint y1, GLint x2, GLint y2 ) void glRects( GLshort x1, GLshort y1, GLshort x2, GLshort y2 ) PARAMETERS x1, y1 Specify one vertex of a rectangle. x2, y2 Specify the opposite vertex of the rectangle. C SPECIFICATION void glRectdv( const GLdouble *v1, const GLdouble *v2 ) void glRectfv( const GLfloat *v1, const GLfloat *v2 ) void glRectiv( const GLint *v1, const GLint *v2 ) void glRectsv( const GLshort *v1, const GLshort *v2 ) PARAMETERS v1 Specifies a pointer to one vertex of a rectangle. v2 Specifies a pointer to the opposite vertex of the rectangle. DESCRIPTION glRect supports efficient specification of rectangles as two corner points. Each rectangle command takes four arguments, organized either as two con- secutive pairs of (x,y) coordinates, or as two pointers to arrays, each containing an (x,y) pair. The resulting rectangle is defined in the z=0 plane. glRect(x1, y1, x2, y2) is exactly equivalent to the following sequence: glBegin(GL_POLYGON); glVertex2(x1, y1); glVertex2(x2, y1); glVertex2(x2, y2); glVertex2(x1, y2); glEnd(); Note that if the second vertex is above and to the right of the first vertex, the rectangle is constructed with a counterclockwise winding. ERRORS GL_INVALID_OPERATION is generated if glRect is executed between the execu- tion of glBegin and the corresponding execution of glEnd. SEE ALSO glBegin, glVertex GLRECT()
NAME | C SPECIFICATION | PARAMETERS | C SPECIFICATION | PARAMETERS | DESCRIPTION | ERRORS | SEE ALSO
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