/**
* Copyright (c) 2008-2012 Ardor Labs, Inc.
*
* This file is part of Ardor3D.
*
* Ardor3D is free software: you can redistribute it and/or modify it
* under the terms of its license which may be found in the accompanying
* LICENSE file or at <http://www.ardor3d.com/LICENSE>.
*/
package com.ardor3d.example.effect;
import java.util.Arrays;
import java.util.List;
import com.ardor3d.example.ExampleBase;
import com.ardor3d.example.Purpose;
import com.ardor3d.math.Vector3;
import com.ardor3d.math.type.ReadOnlyVector3;
import com.ardor3d.renderer.IndexMode;
import com.ardor3d.scenegraph.Line;
import com.ardor3d.scenegraph.shape.Extrusion;
import com.ardor3d.spline.CatmullRomSpline;
import com.ardor3d.spline.Curve;
import com.google.common.collect.Lists;
/**
* A demonstration of the Extrusion class - showing how a set of point can be converted into a 3d shape.
*/
@Purpose(htmlDescriptionKey = "com.ardor3d.example.effect.ExtrusionExample", //
thumbnailPath = "com/ardor3d/example/media/thumbnails/effect_QuadImposterExample.jpg", //
maxHeapMemory = 64)
public class ExtrusionExample extends ExampleBase {
public static void main(final String[] args) {
start(ExtrusionExample.class);
}
@Override
protected void initExample() {
_canvas.setTitle("Extrusion - Example");
_canvas.getCanvasRenderer().getCamera().setLocation(new Vector3(0, 0, 80));
_canvas.getCanvasRenderer().getCamera().lookAt(new Vector3(), Vector3.UNIT_Y);
final List<ReadOnlyVector3> path = Lists.newArrayList();
path.add(new Vector3(0, 0, 0));
path.add(new Vector3(0, 0, 4));
path.add(new Vector3(1, 0, 8));
path.add(new Vector3(2, 1, 12));
path.add(new Vector3(2, 2, 16));
path.add(new Vector3(2, 3, 20));
path.add(new Vector3(3, 4, 24));
// Linestrip
final Line lineStrip = createLineStrip(false);
lineStrip.setTranslation(-10, -20, 0);
_root.attachChild(lineStrip);
final Extrusion extrusion = new Extrusion("Extrusion", lineStrip, path, Vector3.UNIT_Y);
extrusion.setTranslation(10, -20, 0);
_root.attachChild(extrusion);
// Lines
final Line lines = createLines();
lines.setTranslation(-10, 0, 0);
_root.attachChild(lines);
final Extrusion extrusion2 = new Extrusion("Extrusion", lines, path, Vector3.UNIT_Y);
extrusion2.setTranslation(10, 0, 0);
_root.attachChild(extrusion2);
// LineLoop
final Line lineLoop = createLineStrip(true);
lineLoop.setTranslation(-10, 20, 0);
_root.attachChild(lineLoop);
final Extrusion extrusion3 = new Extrusion("Extrusion", lineLoop, path, Vector3.UNIT_Y);
extrusion3.setTranslation(10, 20, 0);
_root.attachChild(extrusion3);
}
private Line createLines() {
final ReadOnlyVector3[] vectors = { //
new Vector3(0, 0, 0), //
new Vector3(5, 0, 0), //
new Vector3(5, 0, 0), //
new Vector3(5, 5, 0), //
new Vector3(5, 5, 0), //
new Vector3(-5, 5, 0), //
new Vector3(-5, 5, 0), //
new Vector3(-5, -5, 0), //
};
final Line line = new Line("curve", vectors, null, null, null);
line.getMeshData().setIndexMode(IndexMode.Lines);
return line;
}
private Line createLineStrip(final boolean loop) {
// Create a line with our example "makeLine" method. See method below.
final ReadOnlyVector3[] vectors = { //
new Vector3(0, 0, 0), //
new Vector3(5, 0, 0), //
new Vector3(5, 5, 0), //
new Vector3(-5, 5, 0), //
new Vector3(-5, -5, 0), //
};
final List<ReadOnlyVector3> controls = Arrays.asList(vectors);
// Create our curve from the control points and a spline
final Curve curve = new Curve(controls, new CatmullRomSpline());
// Create a line from the curve so its easy to check the box is following it
final Line line = curve.toRenderableLine(10);
if (loop) {
line.getMeshData().setIndexMode(IndexMode.LineLoop);
}
return line;
}
}