3dhtml Example :: Cube3D

<!--
/*
 * 3dhtml Example :: Cube3D
 * Version 1.0, 20/11/2001
 * 
 * Copyright (c) 2001 by Netzministerium.de
 * Written by Till Nagel and René Sander.
 * Distributed under the terms of the GNU Lesser General Public. (See licence.txt for details)
 */
-->
<html>
<head>

<title>3dhtml Example :: Cube3D</title>
<!-- helper libs -->
<script language="JavaScript" src="../js/LyrObj.js"></script>
<!-- core 3dhtml lib -->
<script language="JavaScript" src="../js/3dhtml.js"></script>
<script language="JavaScript" src="../js/ColorUtil.js"></script>
<script language="JavaScript" src="../js/materials.js"></script>


<script language="javascript">
<!-- // (c) 2001 Till Nagel, till@netzministerium.de & Rene Sander, rene@netzministerium.de

// ---------------------------------------------------------------------------

// creates cube model with name and (a simple) material
var cubeModel = new Model("cube", new Material("&deg;"));

// defines model points.
// The model's points have to be defined before the respective code is written into the document.
cubeModel.setPoints(createCubeModelPoints());


// ---------------------------------------------------------------------------

// the matrix to transform the model with
var staticRotationMatrix = new Matrix();
staticRotationMatrix.rotateX(0.05);
staticRotationMatrix.rotateY(0.1);

// ---------------------------------------------------------------------------

function initOnLoad() {
	fixNetscape();
	
	cubeModel.assignLayers();
	
	// creates and inits matrix to initialize the model
	var initMatrix = new Matrix();
	initMatrix.scale(50, 50, 50);
	// >> begin to work with the model etc.

	// initializes model
	cubeModel.transform(initMatrix);
	
	// >> first draw of the model (recommended)
	cubeModel.draw();
	
	// starts animation
	animate();
}

/*
 * The main animate method. Calls itself repeatedly.
 */
function animate() {
	var delay = 10;
	
	// animates cube model ----------------------------------------

	// rotates the cube
	cubeModel.transform(staticRotationMatrix);
	
	// updates display
	cubeModel.draw();
	
	// calls itself with an delay to decouple client computer speed from the animation speed.
	// result: the animation is as fast as possible.
	setTimeout("animate()", delay);
}



// ---------------------------------------------------------------------------

function createCubeModelPoints() {
	// the cube model
	return new Array(
		//  Point3D( x,  y,  z, m)
		new Point3D( 1,  1,  1, 0),
		new Point3D( 1,  1, -1, 0),
		new Point3D( 1, -1,  1, 0),
		new Point3D( 1, -1, -1, 0),
		new Point3D(-1,  1,  1, 0),
		new Point3D(-1,  1, -1, 0),
		new Point3D(-1, -1,  1, 0),
		new Point3D(-1, -1, -1, 0)
	);
}

// -->
</script>
</head>

<body onload="initOnLoad()" bottommargin="0" leftmargin="0" marginheight="0" marginwidth="0" rightmargin="0" topmargin="0" style="height:100%">

	<!-- layer to bugfix netscape -->
	<div id="fixnetscape" style="position:absolute;visibility:hidden"></div>
	
	<script language="JavaScript" type="text/javascript">
	<!-- // (c) 2001 Till Nagel, till@netzministerium.de & Rene Sander, rene@netzministerium.de
	
	// MANDATORY: INSERTION OF HTML PART INTO PAGE
	// creates the HTML code representing the model's points
	// NB: This is written directly into the page from within the method	
	cubeModel.createPointCode();
	
	// -->
	</script>

</body>
</html>
Syntax highlighted by Code2HTML, v. 0.9, modified by Netzministerium, 2001.