H5W3
当前位置:H5W3 > 其他技术问题 > 正文

【Web前端问题】图片形状变换—-:)

图片描述

图片1;可以通过何种方式变形为如图片2图片描述

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

demo图片

<!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>

本文地址:H5W3 » 【Web前端问题】图片形状变换—-:)

评论 0

  • 昵称 (必填)
  • 邮箱 (必填)
  • 网址