【Web前端问题】图片形状变换----：）
图片1；可以通过何种方式变形为如图片2
通过html5,css3,javascript,svg,canvas来实现；而最后可以输出的格式也是图片或者svg；
而不是通过photoshop等应用软件处理的；请问前端的朋友有没有什么样的思路？不胜感激。。。！
ps:图片大小以及模糊方面的不做讨论啊；只是形状的变换；因为只是为了表达我想要的效果自己用ps处理的；
回答：
http://lufylegend.com/forum/forum.php?mod=viewthread&tid=94
这个应该可以帮助你。
需要引入lufylegendjs，这里可以下载https://github.com/lufylegend/lufylegend.js/archive/lufylegend-1.9.11.zip
<!DOCTYPE html><html lang="en">
<head>
<meta charset="utf-8" />
<title>HTML5图片修饰</title>
<script type="text/javascript" src="../lufylegend-1.7.6.min.js"></script>
<meta name="viewport" content="width=device-width, initial-scale=0.65,minimum-scale=0.65, maximum-scale=0.65, user-scalable=yes">
</head>
<body>
<div id="legend"></div>
<script>
init(30,"legend",480,480,main);
var vertices;
var indices;
var uvtData;
var stageLayer,backLayer;
var bitmapData;
var imgData = [
{name:"face",path:"face.jpg"},
{name:"icon01",path:"icon01.png"},
{name:"icon02",path:"icon02.png"},
{name:"icon03",path:"icon03.png"},
{name:"icon04",path:"icon04.png"}
];
var selectIcon = null;
var imglist;
var pointList=[];
var mouseX,mouseY;
var mouseObj,toHidden;
function main(){
LLoadManage.load(imgData,null,gameInit);
}
function gameInit(result){
LGlobal.setDebug(true);
imglist = result;
bitmapData = new LBitmapData(imglist["face"]);
stageLayer = new LSprite();
stageLayer.graphics.drawRect(1,"#000000",[0,0,LGlobal.width,LGlobal.height],true,"#000000");
addChild(stageLayer);
backLayer = new LSprite();
backLayer.x = 100;
backLayer.y = 100;
stageLayer.addChild(backLayer);
LGlobal.setDebug(true);
cut();
stageLayer.addEventListener(LEvent.ENTER_FRAME,onframe);
stageLayer.addEventListener(LMouseEvent.MOUSE_DOWN,down);
stageLayer.addEventListener(LMouseEvent.MOUSE_UP,up);
stageLayer.addEventListener(LMouseEvent.MOUSE_MOVE,move);
}
function pointHidden(){
if (toHidden != "hidden") {
toHidden = "hidden";
}else{
toHidden = "";
}
for(i = 0;i < pointList.length;i++){
obj = pointList[i];
if (toHidden == "hidden") {
obj.alpha = 0;
}else{
obj.alpha = 1;
}
}
}
function cut(){
backLayer.removeAllChild();
var num = parseInt(document.getElementById('row').value);
var width = bitmapData.width / num;
var height = bitmapData.height / num;
var i,j,obj;
vertices = new Array();
for(i=0;i<=num;i++){
for(j=0;j<=num;j++){
vertices.push(i*height,j*width);
}
}
pointList = new Array();
for(i = 0;i < vertices.length;i+=2){
obj = new LSprite();
obj.x = vertices[i];
obj.y = vertices[i+1];
obj.graphics.drawArc(1,"#ff0000",[0,0,10,0,2*Math.PI],true,"#ff0000");
backLayer.addChild(obj);
pointList.push(obj);
}
indices = new Array();
for(i=0;i<num;i++){
for(j=0;j<num;j++){
indices.push(i*(num+1)+j,(i+1)*(num+1)+j,i*(num+1)+j+1);
indices.push((i+1)*(num+1)+j,i*(num+1)+j+1,(i+1)*(num+1)+j+1);
}
}
uvtData = new Array();
for(i=0;i<=num;i++){
for(j=0;j<=num;j++){
uvtData.push(i/num, j/num);
}
}
backLayer.graphics.clear();
backLayer.graphics.beginBitmapFill(bitmapData);
backLayer.graphics.drawTriangles(vertices, indices, uvtData);
}
function onframe(){
if (toHidden == "hidden")return;
var i,obj;
for(i = 0;i < pointList.length;i++){
obj = pointList[i];
obj.alpha = 1;
if(Math.pow(obj.x-mouseX,2)+Math.pow(obj.y-mouseY,2) < Math.pow(20,2)){
obj.alpha = 0.5;
}
}
}
function down(event){
if(selectIcon)return;
if(mouseObj)return;
mouseX = event.offsetX - backLayer.x;
mouseY = event.offsetY - backLayer.y;
var i,obj;
for(i = 0;i < pointList.length;i++){
obj = pointList[i];
if(Math.pow(obj.x-mouseX,2)+Math.pow(obj.y-mouseY,2) < Math.pow(20,2)){
mouseObj = obj;
mouseObj.index = i*2;
mouseObj.mouseX = mouseX;
mouseObj.mouseY = mouseY;
mouseObj.saveX = mouseObj.x;
mouseObj.saveY = mouseObj.y;
break;
}
}
}
function up(event){
mouseObj = null;
if(selectIcon){
var img = new LBitmap(new LBitmapData(imglist["icon"+selectIcon]));
img.x = event.offsetX - 40;
img.y = event.offsetY - 40;
stageLayer.addChild(img);
}
}
function move(event){
mouseX = event.offsetX - backLayer.x;
mouseY = event.offsetY - backLayer.y;
if(mouseObj){
mouseObj.x = mouseX - mouseObj.mouseX + mouseObj.saveX;
mouseObj.y = mouseY - mouseObj.mouseY + mouseObj.saveY;
vertices[mouseObj.index] = mouseObj.x;
vertices[mouseObj.index + 1] = mouseObj.y;
}
}
</script>
<div id="mylegend1" style="position:absolute;top:480px;width:480px;height:220px;z-index:1;color: #ffffff;background-color:#ffffff;">
<select id="row" style="width:90px;">
<option value="2">4</option>
<option value="4">16</option>
<option value="8">32</option>
</select>
<input type="button" value="分割" onclick="cut();" />
<input type="button" value="删除操作点" onclick="this.value=this.value=='删除操作点'?'显示操作点':'删除操作点';pointHidden();" />
<br />
<input type="button" value="生成图片" onclick="window.open(LGlobal.canvasObj.toDataURL());" />
<br />
<input type="button" value="添加装饰" onclick="document.getElementById('mylegend1').style.display = 'none';document.getElementById('mylegend2').style.display = '';" />
</div>
<div id="mylegend2" style="position:absolute;top:480px;width:480px;height:220px;z-index:1;color: #ffffff;background-color:#ffffff;display:none;">
<a href="javascript:void(0)" onclick="selectIcon='01';"><img src="/images/html5/lufylegend/ps/icon01.png" /></a>
<a href="javascript:void(0)" onclick="selectIcon='02';"><img src="/images/html5/lufylegend/ps/icon02.png" /></a>
<a href="javascript:void(0)" onclick="selectIcon='03';"><img src="/images/html5/lufylegend/ps/icon03.png" /></a>
<a href="javascript:void(0)" onclick="selectIcon='04';"><img src="/images/html5/lufylegend/ps/icon04.png" /></a>
<input type="button" value="关闭装饰" onclick="selectIcon=null,document.getElementById('mylegend2').style.display = 'none';document.getElementById('mylegend1').style.display = '';" />
</div>
</body>
</html>
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