Epic->yoshimax

Papervision3D Public Beta 2.0 - Great WhiteにおいてCubeの引数を試してみる

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Cubeの引数に関して調べてみる
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cubeのAPIにリファレンスによると

Cube(
materials:MaterialsList,
width:Number = 500,
depth:Number = 500,
height:Number = 500,
segmentsS:int = 1,
segmentsT:int = 1,
segmentsH:int = 1,
insideFaces:int = 0,
excludeFaces:int = 0)

となっている。

segmentsS:int = 1,
segmentsT:int = 1,
segmentsH:int = 1,
がよくわからないので

サンプルのFLASHを作成して
実際に頂点の値を取り出してみました。

cube.geometry.vertices.lengthのメソッドで実際の頂点の数が取り出せます。

それぞれの座標は
cube.geometry.vertices[position_num].x;
cube.geometry.vertices[position_num].y;
cube.geometry.vertices[position_num].z;
で取り出せます。

応用としては、
[ActionScript] PaperVision3D Tweenerの応用にあるように、実際には表示しないで立体の座標をとりだし
移動先の座標を割り出すなどの使い方もあるようです。

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ソースはこちら
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package {
import flash.display.*;
import flash.events.*;

import org.papervision3d.view.*;
import org.papervision3d.materials.*;
import org.papervision3d.objects.*;
import org.papervision3d.objects.primitives.*;

import org.papervision3d.materials.utils.MaterialsList;
import org.papervision3d.cameras.*;
import org.papervision3d.materials.special.CompositeMaterial;

import caurina.transitions.Tweener;
import caurina.transitions.properties.*;

import flash.text.TextField;

public class Main extends BasicView {
private var sphere:Sphere;
private var cube:Cube;
private var bitmapFileMaterial:BitmapFileMaterial;
private var position_num:Number = 0;

public function Main() {
//super(1440, 720, true, true, CameraType.FREE);
stage.scaleMode = StageScaleMode.NO_SCALE;
stage.quality = StageQuality.LOW;
init();
}

Public function init():void {

// material
var colorMaterial:ColorMaterial = new ColorMaterial( 0x666666, 0.3 );
var wireframeMaterial:WireframeMaterial = new WireframeMaterial( 0x333333, 1 );
var compositeMaterial:CompositeMaterial = new CompositeMaterial();
compositeMaterial.addMaterial(colorMaterial);
compositeMaterial.addMaterial(wireframeMaterial);
compositeMaterial.doubleSided = true;

// cube
cube = new Cube(new MaterialsList({all:compositeMaterial}), 200, 200, 200, 5, 5, 5);
scene.addChild(cube);

// sphere
sphere = new Sphere(new ColorMaterial(0xFF0000,1),5,10,10);
scene.addChild(sphere);

camera.x = 200;
camera.y = 200
camera.z = 300;
camera.focus = 350;
camera.zoom = 1;
addEventListener(Event.ENTER_FRAME, enterFrameHandler);
startRendering();

// sphere を 頂点の座標で動かす
moveSphare();
}

private function moveSphare(){

if( position_num >= cube.geometry.vertices.length ) position_num = 0;
text_1.text = cube.geometry.vertices.length.toString();
text_2.text = position_num.toString();
text_3.text = cube.geometry.vertices[position_num].x;
text_4.text = cube.geometry.vertices[position_num].y;
text_5.text = cube.geometry.vertices[position_num].z;

Tweener.addTween(sphere, {
x:cube.geometry.vertices[position_num].x,
y:cube.geometry.vertices[position_num].y,
z:cube.geometry.vertices[position_num].z,
time:0.2,
delay:0.1,
transition: "easeInOutQuart",
onComplete: moveSphare });

position_num++;

}

private function enterFrameHandler(event:Event):void {
}
}
}