Inside Macintosh: 3D Graphics Programming With QuickDraw 3D /

Chapter 4 - Geometric Objects / Geometric Objects Reference

Geometric Objects Routines / Creating and Editing Trigrids

Q3TriGrid_GetVertexAttributeSet

You can use the Q3TriGrid_GetVertexAttributeSet function to get the attribute set of a vertex of a trigrid.

TQ3Status Q3TriGrid_GetVertexAttributeSet (
TQ3GeometryObject triGrid, 
unsigned long rowIndex, 
unsigned long columnIndex, 
TQ3AttributeSet *attributeSet);

triGrid

A trigrid.

rowIndex

A row index into the vertices array of the specified trigrid.

columnIndex

A column index into the vertices array of the specified trigrid.

attributeSet

On exit, a pointer to a vertex attribute set for the specified vertex.

DESCRIPTION

The Q3TriGrid_GetVertexAttributeSet function returns, in the attributeSet parameter, the set of attributes for the vertex having row and column indices rowIndex and columnIndex in the vertices array of the trigrid specified by the triGrid parameter. The reference count of the set is incremented.