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Important: The information in this document is Not Recommended and should not be used for new development.

Current information on this Reference Library topic can be found here:

Version: 1.0

Posted: 2003-01-14

Build Requirements: Mac OS X

Runtime Requirements: Mac OS X Mac OS X, Project Builder

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Download Sample (“”, 70.7K)
Download Sample (“CTMDemo.dmg”, 131.7K)


The CTMDemo sample shows how to manipulate the Core Graphics (Quartz 2D) Current Transform Matrix (CTM) for image drawing. See the companion sample CTMClip for the same demo plus a description of how to make the Core Graphics clip path match the QuickDraw clip region. Requirements: Mac OS X, Project Builder Keywords: Core Graphics, Quartz 2D, CTM, Current Transform Matrix, CTMClip

Document Revision History

Date Notes
2003-01-14Shows how to manipulate the Quartz 2D Current Transform Matrix (CTM) for image drawing without clipping.

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