Finding Geometric Information About Shapes (IM: XG)

Inside Macintosh: QuickDraw GX Graphics /

Chapter 4 - Geometric Operations / Geometric Operations Reference

Finding Geometric Information About Shapes
The functions described in this section calculate geometric information about a shape.
The GXGetShapeLength function calculates the length of a particular contour or of all contours in a shape.
The GXShapeLengthToPoint function determines the point that falls at a specified distance along a particular contour or along all combined contours of a shape.
The GXGetShapeCenter function determines the center point of a particular contour of or all combined contours of a shape's geometry.
The GXGetShapeArea function calculates the area covered by a particular contour or by all combined contours of a shape's geometry.
You can also use the GXGetShapeBounds function, described on page 4-90, to find geometric information about a shape--in this case, the shape's bounding rectangle.

Subtopics

GXGetShapeLength

GXShapeLengthToPoint

GXGetShapeCenter

GXGetShapeArea