IPathFinder Class Reference

#include <IPathFinder.h>

Inheritance diagram for IPathFinder:

Public Types
enum	{ kDefaultIID = IID_IPATHFINDER }
enum	PathType { kNon_zero, kEven_odd }
enum	CombineType { kIntersect, kUnion, kDifference, kXOr }

Public Member Functions
virtual ErrorCode	AddPath (const IPathGeometry *pathData, PathType pathType=kEven_odd)=0
virtual ErrorCode	Combine (IPathGeometry *result, CombineType combineType, PathType resultType=kEven_odd, PMReal flatness=PMReal(kDefaultFlatness))=0
Public Member Functions inherited from IPMUnknown
virtual IPMUnknown *	QueryInterface (PMIID interfaceID) const =0
virtual void	AddRef () const =0
virtual void	Release () const =0

Detailed Description

IPathFinder is an interface for intersecting, unioning, differencing or xoring

multiple paths.

Member Enumeration Documentation

anonymous enum

default IID for this interface

enum IPathFinder::CombineType

CombineType defines the various ways to combine multiple paths

enum IPathFinder::PathType

PathType is used to determine whether interior paths are holes or not.

Enumerator
kNon_zero	Use non-zero winding rule to determine insideness
kEven_odd	Use even-odd rule to determine insideness

Member Function Documentation

virtual ErrorCode IPathFinder::AddPath ( const IPathGeometry *  pathData, PathType  pathType = kEven_odd  )

pure virtual

Add a path to the PathFinder engine - Call this once for each input path

Parameters

pathData	- IN: A source path.
pathType	- IN: Rule used to determine insideness.

Returns

ErrorCode if failure or 0 if success.

virtual ErrorCode IPathFinder::Combine ( IPathGeometry *  result, CombineType  combineType, PathType  resultType = kEven_odd, PMReal  flatness = PMReal(kDefaultFlatness)  )

pure virtual

Combine the paths supplied via AddPath() in the order supplied.

Parameters

result	- OUT: The resulting path.
combineType	- IN: How you want the input paths combined.
resultType	- IN: Insideness rule to assign to the resulting path.
flatness	- IN: Postscript flatness value between kMinFlatness and kMaxFlatness

Returns

ErrorCode if failure or 0 if success.