Hiya,
I am trying to create a custom class (sort of like a primitive) for
creating a round tube so that I can easily create duplicates of this
object on stage.
However, I am having trouble getting my head around how best to
implement the custom class while using the LatheExtrusion class. I
have looked at creating a primitive using the standard methods but
tese seem to extend the AbstractPrimitive class which seems to require
exact face and vertex information (I could be wrong about this but all
examples I have seen create faces to create the primitive). I need my
version to just read in the radius, thickness and depth of the tube in
order to create an extruded shape.
At the moment I just get a blank screen with no model displayed. I am
pretty sure I am missing something fairly straightforward, but I am
pretty stumped right now. Any help would be greatly appreciated.
Here is my current code for the class. It is a bit of a work in
progress.
[code]
package {
import flash.display.*;
import flash.geom.Vector3D;
import away3d.arcane;
import away3d.extrusions.*;
import away3d.materials.*;
import away3d.core.utils.*;
import away3d.core.base.*;
public class RoundTube extends Object3D {
public function RoundTube(radius:Number, thickness:Number,
depth:Number, init:Object = null):void {
super(init);
drawRoundTube(radius, thickness, depth);
}
//draw round tube
public function drawRoundTube(radius:Number, thickness:Number,
depth:Number):void {
var seg:Number = depth/5;
var profile:Array = [
new Vector3D(0, 0, 0),
new Vector3D(0, 0+seg, 0),
new Vector3D(0, 0+(seg*2), 0),
new Vector3D(0, 0+(seg*3), 0),
new Vector3D(0, 0+(seg*4), 0),
new Vector3D(0, 0+depth, 0),
new Vector3D(0+thickness, 0+depth, 0),
new Vector3D(0+thickness, 0+(seg*4), 0),
new Vector3D(0+thickness, 0+(seg*3), 0),
new Vector3D(0+thickness, 0+(seg*2), 0),
new Vector3D(0+thickness, 0+seg, 0),
new Vector3D(0+thickness, 0, 0),
new Vector3D(0, 0, 0)
];
var roundTube:LatheExtrusion = new
LatheExtrusion(profile);
roundTube.subdivision = 18;
roundTube.offsetRadius = radius;
roundTube.centerMesh = false;
roundTube.revolutions = 1;
roundTube.bothsides = false;
//flips the model over
roundTube.rotationX = -90;
var wMaterial:WireColorMaterial = new
WireColorMaterial(0x373737);
wMaterial.wireColor = 0x373737;
roundTube.material = wMaterial;
//add to holder
//addChild(roundTube);
trace("model complete");
}
}
}
[/code]
The class is then instantiated in the main code here:
[code]
holder = new ObjectContainer3D();
var model:RoundTube = new RoundTube(10, 2, 300);
holder.addChild(model);
_view.scene.addChild(holder);
[/code]
