Clips around the current drawing path. This can be used to create a cutout effect and to ensure shapes fit inside a spcified area.
In the example below, a cpdf_newpath() is used to create a clipping path in the shape of a rectangle and the clipping path cleared with a second call to cpdf_newpath() so shapes can be drawn.
Example 120. Create a clipping path
// start a PDF document $cpdf = cpdf_open(0, "test.pdf"); // create a 600x400 page cpdf_page_init($cpdf, 1, 0, 600, 400, 1); // set the stroke gray amount cpdf_setgray_stroke($cpdf, 0.0); // set the linw width cpdf_setlinewidth($cpdf, 0.2); // save the current document state cpdf_save($cpdf); // create the clipping path cpdf_newpath($cpdf); cpdf_rect($cpdf, 50,50, 150, 90); cpdf_clip($cpdf); cpdf_newpath($cpdf); // create a shape and close the path cpdf_arc($cpdf, 100, 100, 50, 30, 220, 0); cpdf_closepath($cpdf); // fill and stroke the shape and clipping path combined cpdf_fill_stroke($cpdf); // comment out next line to see clipping path // also affect this shape cpdf_restore($cpdf); cpdf_rect($cpdf, 30,30, 100, 30); cpdf_stroke($cpdf); // close and write document cpdf_finalize($cpdf); cpdf_close($cpdf);
PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at http://www.opencontent.org/openpub/). The authors of this book have elected not to choose any options under the OPL. This online book was obtained from http://www.fooassociates.com/phpfer/ and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.