Geometric Operations Applicable to Pictures (IM: XG)

Inside Macintosh: QuickDraw GX Graphics /: Chapter 6 - Picture Shapes / Applying Functions Described Elsewhere to Picture Shapes

Geometric Operations Applicable to Pictures
Many geometric operations post errors or warnings when applied to picture shapes, as described in "Functions That Post Errors or Warnings When Applied to Pictures" on page 6-52.
You can, however, apply the remainder of the functions described in Chapter 4, "Geometric Operations," to picture shapes. Table 6-4 gives important picture-related information for a subset of these functions; the remainder of the geometric operations exhibit the same behavior when applied to picture shapes as they do when applied to other types of shapes.
Geometric operations that exhibit special behavior when applied to pictures
Function name Action taken
GXGetShapeArea Returns summed areas of picture items.
GXGetShapeBounds Returns bounding rectangle of specified item.
GXSetShapeBounds If the picture's mapTransformShape shape attribute is set, this function changes the picture's transform so that the entire picture fits within the specifed bounding rectangle. If this attribute is not set, this function posts an error.

Geometric operations that exhibit special behavior when applied to pictures
Function name	Action taken
GXGetShapeArea	Returns summed areas of picture items.
GXGetShapeBounds	Returns bounding rectangle of specified item.
GXSetShapeBounds	If the picture's `mapTransformShape` shape attribute is set, this function changes the picture's transform so that the entire picture fits within the specifed bounding rectangle. If this attribute is not set, this function posts an error.