pdf_setmatrixDescriptionThis is a slightly more low-level version of other the transformation functions including pdf_scale() , pdf_rotate() , and pdf_translate() . The exception however, is that the transformation matrix is reset each time rather than remainiing and affecting other objects. When applying several transformations, it is always a good idea to specify them in the correct order so the results are more predictable. The best way to do multiple translations is to first translate, then rotate and finaly scale and skew. In pdf_setmatrix() , the transformation matrix is specified by six parameters, combinations of which affect the amount of translation that occurs. Different pairs of numbers cause each trnasformation. Translations are specified as
ExampleExample 979. Show each transformation <?php // create new document $pdf = pdf_new(); pdf_open_file($pdf); pdf_begin_page($pdf, 500, 700); $font = pdf_findfont($pdf, "Courier", "host", 0); pdf_setfont($pdf, $font, 50); // display as normal pdf_set_text_pos($pdf, 10, 10); pdf_show($pdf, "Norm"); // translate pdf_setmatrix($pdf, 1, 0, 0, 1, 100, 100); pdf_set_text_pos($pdf, 10, 10); pdf_show($pdf, "Trans"); // rotate pdf_setmatrix($pdf, 0.7, 0.7, -0.7, 0.7, 0, 0); pdf_set_text_pos($pdf, 150, 50); pdf_show($pdf, "Rotate"); // scale pdf_setmatrix($pdf, 2, 0, 0, 2, 0, 0); pdf_set_text_pos($pdf, 75, 75); pdf_show($pdf, "Scale"); // skew pdf_setmatrix($pdf, 1, 0.58, 0.58, 1, 0, 0); pdf_set_text_pos($pdf, 130, 130); pdf_show($pdf, "Skew"); pdf_end_page($pdf); pdf_close($pdf); // output document $data = pdf_get_buffer($pdf); header("Content-type: application/pdf"); header("Content-disposition: inline; filename=test.pdf"); header("Content-length: " . strlen($data)); echo $data; ?>
PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing
(Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch).
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