<?php
/*
 * RichMedia 3D:
 * Load a PRC 3D model and create a 3D RichMedia annotation.
 *
 * Define a 3D view and load some 3D data with the defined view. Then create
 * a RichMedia annotation with 3D and JavaScript assets and the 3D view as
 * initial view.
 * 
 * Required software: PDFlib/PDFlib+PDI/PPS 10
 * Required data: PRC data file
 */
/* This is where the data files are. Adjust if necessary. */
$searchpath = "../input";
$modelfile = "riemann.prc";	            // 3D PRC file
$jsfile = "prcanim.js";	            	// JavaScript for 3D animation
$outfile = "";
$title = "RichMedia 3D";


 $exitcode = 0;

try {
    $p = new pdflib();

    $p->set_option("searchpath={" . $searchpath . "}");

    /* This means we must check return values of begin_document()
     * etc.
     */
    $p->set_option("errorpolicy=return");

    /* Start the document */
    if ($p->begin_document($outfile, "destination={type=fitwindow}") == 0)
        throw new Exception("Error: " . $p->get_errmsg());

    $p->set_info("Creator", "PDFlib Cookbook");
    $p->set_info("Title", $title);

    $p->begin_page_ext(0, 0, "width=a4.width height=a4.height");
    
    // Load the 3D model to create a 3D asset
    $asset_3d = $p->load_asset("3D", $modelfile, "");
    if ($asset_3d == 0)
        throw new Exception("Error: " . $p->get_errmsg());
    
    // Load JavaScript asset
    $asset_js = $p->load_asset("JavaScript", $jsfile, "");
    if ($asset_js == 0)
        throw new Exception("Error: " . $p->get_errmsg());            

    /* Define a 3D view which shows the model from the top */
    $optlist = "type=PRC name=FirstView background={fillcolor=lightblue} "
        . "camera2world={-1 0 0 0 1 0 0 0 -1 0.5 0 300}";
    if (($view = $p->create_3dview("First view", $optlist)) == 0)
        throw new Exception("Error: " . $p->get_errmsg());

    /*
     * Create a RichMedia annotation containing the 3D and JavaScript
     * assets and the 3D view as its initial view
     */
    $optlist =
        "richmedia={" .
            "assets={ " .
                "{asset=" . $asset_3d . " name=3dasset} " .
                "{asset=" . $asset_js . " name=script1} " .
            "} " .
            "configuration={instances={ {asset=3dasset} }} " .
            "views={" . $view . "} " .
            "activate={condition=visible scripts={script1} } " .
        "}";

    $p->create_annotation(116, 200, 447, 580, "RichMedia", $optlist);

    $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=richmedia_3d.pdf");
    print $buf;

} catch (PDFlibException $e) {
    print("PDFlib exception occurred:\n".
        "[" . $e->get_errnum() . "] " . $e->get_apiname() .
        ": " . $e->get_errmsg() . "\n");
    exit(1);
} catch (Exception $e) {
    print($e->getMessage());
    exit(1);
}

$p = 0;

?>