pdf_rotate

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gman at speakeasy dot net
31-Jan-2003 10:17


Thanks for your help, this is a clean working example ...

<?php

    $pdf = pdf_new();

    pdf_open_file($pdf);

    pdf_set_info($pdf,"Creator","images.php");

    pdf_set_info($pdf,"Title","Horizontal and Vertical Example");

    // Width of 612, and length of 792 make US Letter Size

    // Dimensions are reversed for Landscape Mode

    pdf_begin_page($pdf,792,612);



    pdf_set_font($pdf, "Helvetica-Oblique", 18, "host");

    pdf_show_xy($pdf, "This is horizontal text",50, 300);

    pdf_rotate($pdf, 90); /* rotate coordinates */

    pdf_show_xy($pdf,"vertical text",300, -400);

    

    pdf_rotate($pdf, -90); /* rotate coordinates */;

    pdf_show_xy($pdf, "This is horizontal text",50, 400);



    pdf_end_page($pdf);

    pdf_close($pdf);

    $buf = pdf_get_buffer($pdf);

    $len = strlen($buf);

    Header("Content-type: application/pdf");

    Header("Content-Length: $len");

    Header("Content-Disposition: inline; filename=images.pdf");

    echo $buf;

    pdf_delete($pdf);

?>

bml137 at myglo dot net
28-Jan-2003 03:11


When you rotate, remember that you are rotating the coordinate system.  So if you are rotating 90 degrees with the origin at (0,0) (bottom-left corner on PDFs) in the clockwise direction, then the pivot appears to be on the top-left of the PDF.  For instance, if you put a sheet of paper on the table in vertical position, then rotate it clockwise 90 degrees by pivoting from the bottom-left corner, the pivot (or origin) will now be in the top-left corner of the horizontal paper.  As you can see, you now have room show text in the +x, -y directions, not +x, +y.

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pdf_rotate

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