SWF_LOOKAT(3) 1 SWF_LOOKAT(3)
swf_lookat - Define a viewing transformation
SYNOPSIS
void swf_lookat (float $view_x, float $view_y, float $view_z, float $reference_x, float $reference_y, float $reference_z, float
$twist)
DESCRIPTION
Defines a viewing transformation by giving the viewing position and the coordinates of a reference point in the scene.
PARAMETERS
o $view_x
- x-coordinate for the viewing position
o $view_y
- y-coordinate for the viewing position
o $view_z
- z-coordinate for the viewing position
o $reference_x
- x-coordinate for the reference point
o $reference_y
- y-coordinate for the reference point
o $reference_z
- z-coordinate for the reference point
o $twist
- Controls the rotation along with viewer's z axis.
RETURN VALUES
No value is returned.
EXAMPLES
Example #1
A simple 3D-rotation around a text
<?php
header('Content-type: application/x-shockwave-flash');
swf_openfile("php://stdout", 320, 200, 25, 1, 1, 1);
swf_ortho(-100, 100, -100, 100, -100, 100); // create 3D coordinates
swf_definefont(0, "Pix3");
swf_addcolor(0, 0, 0, 1);
swf_fontsize(10);
swf_fonttracking(0.2);
for ($i = 0; $i < 628; $i += 8) {
$j = $i / 100;
swf_pushmatrix();
swf_translate(0, 0, 0);
swf_perspective(100, 1, 0, 10);
swf_lookat(sin($j) * 60, 50, cos($j) * 60, 0, 0, 0, 0);
swf_definetext (1, 'HotKey@', 0);
swf_translate(-50,0,0);
swf_placeobject(1,10);
swf_definetext(2, 'example.com', 0);
swf_translate(55, 0, 0);
swf_placeobject(2, 11);
swf_showframe();
swf_removeobject(10);
swf_removeobject(11);
swf_popmatrix();
}
swf_closefile();
?>
PHP Documentation Group SWF_LOOKAT(3)
