4 Creating and Editing General Polygons

4 Q3GeneralPolygon_GetVertexPosition

You can use the Q3GeneralPolygon_GetVertexPosition function to get the position of a vertex of a general polygon.

TQ3Status Q3GeneralPolygon_GetVertexPosition (
TQ3GeometryObject generalPolygon, 
unsigned long contourIndex, 
unsigned long pointIndex, 
TQ3Point3D *position);
generalPolygon
A general polygon.
contourIndex
An index into the contours array of the specified general polygon. This index should be greater than or equal to 0 and less than the number of contours in the contours array.
pointIndex An index into the vertices array of the specified contour. This index should be greater than or equal to 0 and less than the number of points in the vertices array.
position On exit, the position of the specified vertex.

DESCRIPTION


The Q3GeneralPolygon_GetVertexPosition function returns, in the position parameter, the position of a vertex in the general polygon specified by the generalPolygon parameter. The vertex has the index specified by the pointIndex parameter in the vertices array of the contour specified by the contourIndex parameter.

DESCRIPTION

3D Graphics Programming with QuickDraw 3D - 21 OCT 1995

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