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<?php
/* $Id: starter_3d.php,v 1.1.2.1 2008/02/22 15:50:40 rjs Exp $
 * 3D Starter:
 * Create a 3D model and load it into a U3D annotation.
 *
 * Define a 3D view and load some 3D data with the view defined. Then create
 * an annotation containing the loaded 3D data with the defined 3D view as the
 * initial view.
 *
 * Acrobat 7.07 or above is required for viewing PDF documents containing a
 * 3D model.
 *
 * Required software: PDFlib/PDFlib+PDI/PPS 7.0.1
 * Required data: U3D data file
 */

# This is where the data files are. Adjust if necessary.
$searchpath = "../data";
$outfile = "starter_3d.pdf";

# Required minimum PDFlib version
$requiredversion = 701;
$requiredvstr = "7.0.1";

$p = PDF_new();

PDF_set_parameter($p, "SearchPath", $searchpath);

# This means we must check return values of load_font() etc.
PDF_set_parameter($p, "errorpolicy", "return");

# Check whether the required minimum PDFlib version is available
$major = PDF_get_value($p, "major", 0);
$minor = PDF_get_value($p, "minor", 0);
$revision = PDF_get_value($p, "revision", 0);

if ($major*100 + $minor*10 + $revision < $requiredversion) {
    die("Error: PDFlib " . $requiredvstr . " or above is required\n");
}

# Start the document
if (PDF_begin_document($p, $outfile, "") == 0) {
    die("Error: " . PDF_get_errmsg($p));
}

PDF_set_info($p, "Creator", "PDFlib Cookbook");
PDF_set_info($p, "Title", "starter_3d");

$font = PDF_load_font($p, "Helvetica", "winansi", "");
if ($font == 0) {
    die("Error: " . PDF_get_errmsg($p));
}

PDF_begin_page_ext($p, 0, 0, "width=a4.width height=a4.height");

# Define a U3D view
$optlist = "name=FirstView background={fillcolor={rgb 1 0.5 0.1}}";
if (($u3dview = PDF_create_3dview($p, "First view", $optlist)) == 0) {
    die("Error: " . PDF_get_errmsg($p));
}

# Load some U3D data with the view defined above
$buf = "views={$u3dview}";
if (($u3ddata = PDF_load_3ddata($p, "box.u3d", $buf)) == 0) {
    die("Error: " . PDF_get_errmsg($p));
}

# Create an annotation containing the loaded U3D data with the
# defined 3D view as the initial view
#
$buf = "name=annot usercoordinates contents=U3D 3ddata=$u3ddata 3dactivate={enable=open} 3Dinitialview=$u3dview";
PDF_create_annotation($p, 116, 400, 447, 580, "3D", $buf);

PDF_end_page_ext($p, "");

PDF_end_document($p, "");

PDF_delete($p);
?>
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