每天学一点flash（43） flash 3d 旋转

很久没有来这里写文章里，csdn的服务器终于优化好了。这次又可以继续发表我的flash文章了。

之前看了一本书，把里面的程序调试成功了，现在可以运行制作一个三维的效果。还是不错的程序

cude.as

package tom{

import flash.display.Sprite;

import flash.events.*;

import flash.display.Graphics;

public class cude extends Sprite {

private var points:Array=new Array();

private var vpX:Number=stage.stageWidth/2;

private var vpY:Number=stage.stageHeight/2;

private var numPoints:int=8;

private var triangles:Array;

public function cude() {

points[0] = new Point3D(-100, -100, -100);

points[1] = new Point3D( 100, -100, -100);

points[2] = new Point3D( 100, 100, -100);

points[3] = new Point3D(-100, 100, -100);

points[4] = new Point3D(-100, -100, 100);

points[5] = new Point3D( 100, -100, 100);

points[6] = new Point3D( 100, 100, 100);

points[7] = new Point3D(-100, 100, 100);

for (var i:int = 0; i < numPoints; i++) {

points[i].setVanishingPoint(vpX, vpY);

points[i].setCenter(0, 0, 200); }

triangles=new Array();

triangles[0] = new Triangle(points[0], points[1],points[2], 0x6666cc);

triangles[1] = new Triangle(points[0], points[2],points[3], 0x6666cc); // top

triangles[2] = new Triangle(points[0], points[5],points[1], 0x66cc66);

triangles[3] = new Triangle(points[0], points[4],points[5], 0x66cc66); //back

triangles[4] = new Triangle(points[4], points[6],points[5], 0xcc6666);

triangles[5] = new Triangle(points[4], points[7],points[6], 0xcc6666); // bottom

triangles[6] = new Triangle(points[3], points[2],points[6], 0xcc66cc);

triangles[7] = new Triangle(points[3], points[6],points[7], 0xcc66cc); // right

triangles[8] = new Triangle(points[1], points[5],points[6], 0x66cccc);

triangles[9] = new Triangle(points[1], points[6],points[2], 0x66cccc); // left

triangles[10] =new Triangle(points[4], points[0],points[3], 0xcccc66);

triangles[11] =new Triangle(points[4], points[3],points[7], 0xcccc66);

addEventListener(Event.ENTER_FRAME, onEnterFrame); }

private function onEnterFrame(event:Event):void {

var angleX:Number = (mouseY - vpY) * .001;

var angleY:Number = (mouseX - vpX) * .001;

for (var i:int = 0; i < numPoints; i++) {

var point:Point3D = points[i];

point.rotateX(angleX);

point.rotateY(angleY); }

graphics.clear();

for (var k:int = 0; k < triangles.length; k++) {

triangles[k].draw(graphics);

} } } }

Point3D.as

package tom{

import flash.display.Sprite; i

mport flash.events.*;

public class Point3D {

public var fl:Number = 250;

private var vpX:Number=0;

private var vpY:Number=0;

private var cX:Number = 0;

private var cY:Number = 0;

private var cZ:Number = 0;

public var X:Number=0;

public var Y:Number=0;

public var Z:Number=0;

public function Point3D(X:Number,Y:Number,Z:Number)

{ this.X=X; this.Y=Y; this.Z=Z;

}

public function setCenter(cX:Number,cY:Number,cZ:Number=0):void {

this.cX = cX; this.cY = cY; this.cZ = cZ; }

public function setVanishingPoint(vpX:Number, vpY:Number):void {

this.vpX = vpX; this.vpY = vpY; }

public function get screenX():Number {

var scale:Number = fl / (fl + Z + cZ);

return vpX + cX + X * scale; }

public function get screenY():Number {

var scale:Number = fl / (fl + Z + cZ);

return vpY + cY + Y * scale;

} public function rotateX(angleX:Number):void {

var cosX:Number = Math.cos(angleX);

var sinX:Number = Math.sin(angleX);

var y1:Number = Y * cosX - Z * sinX;

var z1:Number = Z* cosX + Y * sinX;

Y = y1; Z= z1; }

public function rotateY(angleY:Number):void {

var cosY:Number = Math.cos(angleY);

var sinY:Number = Math.sin(angleY);

var x1:Number = X * cosY - Z * sinY;

var z1:Number = Z * cosY + X * sinY;

X = x1; Z = z1; }

public function rotateZ(angleZ:Number):void {

var cosZ:Number = Math.cos(angleZ);

var sinZ:Number = Math.sin(angleZ);

var x1:Number = X * cosZ - Y * sinZ;

var y1:Number = Y * cosZ + X * sinZ; X = x1; Y= y1; } } }

Triangle.as

package tom{

import flash.display.Graphics;

public class Triangle {

private var pointA:Point3D;

private var pointB:Point3D;

private var pointC:Point3D;

private var color:uint;

public function Triangle(a:Point3D,b:Point3D,c:Point3D, color:uint)

{ pointA = a; pointB = b; pointC = c; this.color = color; }

public function draw(g:Graphics):void {

g.beginFill(color);

g.moveTo(pointA.screenX, pointA.screenY);

g.lineTo(pointB.screenX, pointB.screenY);

g.lineTo(pointC.screenX, pointC.screenY);

g.lineTo(pointA.screenX, pointA.screenY);

g.endFill(); }

}

}

这个文件保存在一个tom 的文件夹里面，当我们运行的时候，我们只需要在你绑定文档




暂时写住那么多！！日后再慢慢补充