20 Managing Bounding Boxes

20 Q3BoundingBox_UnionRationalPoint4D

You can use the Q3BoundingBox_UnionRationalPoint4D function to find the union of a bounding box and a rational four-dimensional point.

TQ3BoundingBox *Q3BoundingBox_UnionRationalPoint4D (
const TQ3BoundingBox *bBox, 
const TQ3RationalPoint4D *pt4D, 
TQ3BoundingBox *result);
bBox A pointer to a bounding box.
pt4D A rational four-dimensional point.
result On exit, a pointer to the union of the specified bounding box and the specified point.

DESCRIPTION


The Q3BoundingBox_UnionRationalPoint4D function returns, as its function result and in the result parameter, a pointer to the bounding box that is the union of the bounding box specified by the bBox parameter and the rational four-dimensional point specified by the pt4D parameter. The result parameter can point to the memory pointed to by bBox, thereby performing the union operation in place.

DESCRIPTION

3D Graphics Programming with QuickDraw 3D - 17 OCT 1995

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