graphics/dashed_lines
Create some dash patterns to be used as line styles.
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<?php
/*
* Dashed lines:
* Create some dash patterns to be used as line styles
*
* Required software: PDFlib/PDFlib+PDI/PPS 9
* Required data: none
*/
/* This is where the data files are. Adjust if necessary. */
$searchpath = dirname(__FILE__,3)."/input";
$outfile = "";
$title = "Dashed Lines";
$startx = 10; $starty = 200; $x = 200; $y = 200;
try {
$p = new pdflib();
$p->set_option("searchpath={" . $searchpath . "}");
/* This means we must check return values of load_font() etc. */
$p->set_option("errorpolicy=return");
if ($p->begin_document($outfile, "") == 0)
throw new Exception("Error: " . $p->get_errmsg());
$p->set_info("Creator", "PDFlib Cookbook");
$p->set_info("Title", $title );
$p->begin_page_ext(250, 250, "");
/* Set the drawing properties for the dash patterns */
$p->setlinewidth(0.6);
/* Set the first dash pattern with a dash and gap length of 3 */
$p->set_graphics_option("dasharray={3 3}");
/* Stroke a line with that pattern */
$p->moveto($startx, $starty);
$p->lineto($x, $y);
$p->stroke();
/* Set the second dash pattern with a dash length of 3 and
* a gap length of 6
*/
$p->set_graphics_option("dasharray={3 6}");
/* Stroke a line with that pattern */
$p->moveto($startx, $starty-20);
$p->lineto($x, $y-20);
$p->stroke();
/* Set the third dash pattern with a dash length of 6 and
* a gap length of 3
*/
$p->set_graphics_option("dasharray={6 3}");
/* Stroke a line with that pattern */
$p->moveto($startx, $starty-40);
$p->lineto($x, $y-40);
$p->stroke();
/* Set the fourth dash pattern with a dash length of 5 and
* a gap length of 3, then a dash of 0.5 and a gap of 3, then a dash
* of 3 and a gap of 3, then a dash of 0.0 and a gap of 3 and so forth
*/
$p->set_graphics_option("dasharray={5 3 0.5 3 3 3 0.5 3}");
/* Stroke a line with that pattern */
$p->moveto($startx, $starty-60);
$p->lineto($x, $y-60);
$p->stroke();
$p->end_page_ext("");
$p->end_document("");
$buf = $p->get_buffer();
$len = strlen($buf);
header("Content-type: application/pdf");
header("Content-Length: $len");
header("Content-Disposition: inline; filename=dashed_lines.pdf");
print $buf;
} catch (PDFlibException $e){
echo("PDFlib exception occurred:\n" .
"[" . $e->get_errnum() . "] " . $e->get_apiname() .
": " . $e->get_errmsg() . "\n");
exit(1);
} catch (Throwable $e) {
echo("PHP exception occurred: " . $e->getMessage() . "\n");
exit(1);
}
$p = 0;
?>