经过我一天的努力 总算是弄好了 哈哈 虽然很菜，但是总算弄出个东西了，这个是以x轴为中心点转动，暂时没有加进交互。
Code1 package
2 {
3 import __AS3__.vec.Vector;
4
5 import flash.display.Bitmap;
6 import flash.display.Sprite;
7 import flash.display.StageAlign;
8 import flash.display.StageScaleMode;
9 import flash.display.TriangleCulling;
10 import flash.events.Event;
11
12 [SWF(backgroundColor=0x000000, width=800, height=800)]
13 public class ImageSphere1 extends Sprite
14 {
15 [Embed(source="map.jpg")]
16 private var ImageClass:Class;
17
18 private var vertices:Vector.<Number> = new Vector.<Number>();
19 private var indices:Vector.<int> = new Vector.<int>();
20 private var uvtData:Vector.<Number> = new Vector.<Number>();
21 private var bitmap:Bitmap;
22 private var sprite:Sprite;
23 private var centerZ:int = 500;
24 private var cols:int = 20;
25 private var rows:int =20;
26 private var focalLength:Number = 1000;
27 private var radius:Number = 200;
28 private var offset:int = 0;
29 private var zSaver:Array=[];
30 private var xSaver:Array=[];
31 private var ySaver:Array=[];
32 private var DAngle:Number = .02;
33 public function ImageSphere1()
34 {
35 stage.align = StageAlign.TOP_LEFT;
36 stage.scaleMode = StageScaleMode.NO_SCALE;
37
38 sprite = new Sprite();
39 sprite.x = 400;
40 sprite.y = 400;
41 addChild(sprite);
42
43 bitmap= new ImageClass() as Bitmap;
44 makeTriangles();
45
46
47 }
48
49 private function onEnterFrame(event:Event):void
50 {
51 draws();
52 }
53
54
55 private function makeTriangles():void
56 { vertices.length = 0;
57 uvtData.length = 0;
58 var zpos:Number =0;
59 var ypos:Number =0;
60 var xpos:Number = 0;
61 for(var i:int = 0; i < rows; i++)
62 {
63 for(var j:int = 0; j < cols; j++)
64 {
65 if(i < rows - 1 && j < cols - 1)
66 {
67 indices.push(i * cols + j,
68 i * cols + j + 1,
69 (i + 1) * cols + j);
70
71 indices.push(i * cols + j + 1,
72 (i + 1) * cols + j + 1,
73 (i + 1) * cols + j);
74
75 }
76
77 var angle:Number =Math.PI *2/ (rows - 1) * j;
78 var dR:Number=2*radius/(rows-1);
79 var scale:Number =0;
80
81 ypos= radius-i*dR;
82 ySaver.push(ypos);
83
84 zpos= Math.cos(angle)*Math.sqrt(radius*radius-ypos*ypos);
85 zSaver.push(zpos);
86
87 xpos= Math.sin(angle)*Math.sqrt(radius*radius-ypos*ypos);
88 xSaver.push(xpos);
89
90 scale= focalLength / (focalLength + zpos + centerZ);
91 vertices.push(xpos * scale, ypos * scale);
92
93 uvtData.push(j / (cols - 1), i / (rows - 1));
94 uvtData.push(scale);
95
96
97 }//for
98 }//for
99
100 sprite.graphics.clear();
101
102
103 sprite.graphics.lineStyle(1, 5, .8);
104 //graphics.beginFill(0xFF8F05);
105 sprite.graphics.drawTriangles(vertices, indices, uvtData);
106 trace("ini is:",vertices);
107 addEventListener(Event.ENTER_FRAME, onEnterFrame);
108 }//f ends
109
110 private function draws():void
111 {
112
113 offset++;
114 if(offset>=1) {
115
116 offset=0;
117 vertices.length = 0;
118
119
120
121 for(var i:int = 0; i < zSaver.length; i++)
122 {
123
124
125 ySaver[i]= Math.cos(DAngle)*ySaver[i]-Math.sin(DAngle)*zSaver[i];
126
127 zSaver[i]= Math.cos(DAngle)*zSaver[i]+Math.sin(DAngle)*ySaver[i];
128
129 var scale:Number= focalLength / (focalLength + zSaver[i] + centerZ);
130 vertices.push(xSaver[i] * scale, ySaver[i] * scale);
131 if(i*3+2<=uvtData.length) uvtData[i*3+2]=scale;
132
133 }
134
135 sprite.graphics.clear();
136
137 sprite.graphics.beginBitmapFill(bitmap.bitmapData);
138 //sprite.graphics.beginFill(0x628f06);
139 //
140 sprite.graphics.drawTriangles(vertices, indices,uvtData, TriangleCulling.NEGATIVE);
141 sprite.graphics.endFill();
142 // sprite.graphics.lineStyle(1, 5, .8);
143 //graphics.beginFill(0xFF8F05);
144 //sprite.graphics.drawTriangles(vertices, indices, uvtData, TriangleCulling.NEGATIVE);
145 trace(uvtData.length);
146 trace(zSaver.length);
147 }
148 }//f end
149
150 }
151 }
