...實(shí)例將矩形旋轉(zhuǎn) 20 度:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.rotate(20*Math.PI/180);ctx.fillRect(50,20,100,50);嘗試一下 ?瀏覽器支持Internet Explorer 9、Firefox、Opera、Chrome 和 Safari ...
http://www.o2fo.com/jsref/met-canvas-rotate.html...置 (80,80) 開始繪制):YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.fillRect(10,10,100,50);ctx.translate(70,70);ctx.fillRect(10,10,100,50);嘗試一下 ?瀏覽器支持Internet Explorer 9、Firefox、Opera、...
http://www.o2fo.com/jsref/met-canvas-translate.html...putImageData() 方法,以獲得更多關(guān)于 ImageData 對(duì)象的知識(shí)。JavaScript 語(yǔ)法JavaScript 語(yǔ)法: imgData.width; Canvas 對(duì)象
http://www.o2fo.com/jsref/prop-canvas-imagedata-width.html...putImageData() 方法,以獲得更多關(guān)于 ImageData 對(duì)象的知識(shí)。JavaScript 語(yǔ)法JavaScript 語(yǔ)法:imgData.height; Canvas 對(duì)象
http://www.o2fo.com/jsref/prop-canvas-imagedata-height.html...色矩形部分是可見的:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");// Clip a rectangular areactx.rect(50,20,200,120);ctx.stroke();ctx.clip();// Draw red rectangle after clip()ctx.fillStyle="red";ctx.fillRect(0,0,...
http://www.o2fo.com/jsref/met-canvas-clip.html...為它在藍(lán)色矩形下面:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.fillStyle="yellow";ctx.fillRect(0,0,250,100)ctx.setTransform(1,0.5,-0.5,1,30,10);ctx.fillStyle="red";ctx.fillRect(0,0,250,100);ctx.setTransfo...
http://www.o2fo.com/jsref/met-canvas-settransform.html...一條二次貝塞爾曲線:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.beginPath();ctx.moveTo(20,20);ctx.quadraticCurveTo(20,100,200,20);ctx.stroke();嘗試一下 ?瀏覽器支持Internet Explorer 9、Firefox、...
http://www.o2fo.com/jsref/met-canvas-quadraticcurveto.html...,使用的字體是 "Arial":YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.font="30px Arial";ctx.fillText("Hello World",10,50);嘗試一下 ?瀏覽器支持Internet Explorer 9、Firefox、Opera、Chrome 和 Safari...
http://www.o2fo.com/jsref/prop-canvas-font.html...閱 createImageData() 方法,它可創(chuàng)建新的空白 ImageData 對(duì)象。JavaScript 語(yǔ)法JavaScript 語(yǔ)法:context.putImageData(imgData,x,y,dirtyX,dirtyY,dirtyWidth,dirtyHeight);參數(shù)值參數(shù)描述imgData規(guī)定要放回畫布的 ImageData 對(duì)象。xImageData 對(duì)象左上角的 x 坐標(biāo),以...
http://www.o2fo.com/jsref/met-canvas-putimagedata.html...色和一個(gè)綠色的矩形:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.fillStyle="red";ctx.fillRect(20,20,75,50);// Turn transparency onctx.globalAlpha=0.2;ctx.fillStyle="blue"; ctx.fillRect(50,50,75,50); ctx.fil...
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...實(shí)例將矩形旋轉(zhuǎn) 20 度:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.rotate(20*Math.PI/180);ctx.fillRect(50,20,100,50);嘗試一下 ?瀏覽器支持Internet Explorer 9、Firefox、Opera、Chrome 和 Safari ...
http://www.o2fo.com/jsref/met-canvas-rotate.html...置 (80,80) 開始繪制):YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.fillRect(10,10,100,50);ctx.translate(70,70);ctx.fillRect(10,10,100,50);嘗試一下 ?瀏覽器支持Internet Explorer 9、Firefox、Opera、...
http://www.o2fo.com/jsref/met-canvas-translate.html...putImageData() 方法,以獲得更多關(guān)于 ImageData 對(duì)象的知識(shí)。JavaScript 語(yǔ)法JavaScript 語(yǔ)法: imgData.width; Canvas 對(duì)象
http://www.o2fo.com/jsref/prop-canvas-imagedata-width.html...putImageData() 方法,以獲得更多關(guān)于 ImageData 對(duì)象的知識(shí)。JavaScript 語(yǔ)法JavaScript 語(yǔ)法:imgData.height; Canvas 對(duì)象
http://www.o2fo.com/jsref/prop-canvas-imagedata-height.html...色矩形部分是可見的:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");// Clip a rectangular areactx.rect(50,20,200,120);ctx.stroke();ctx.clip();// Draw red rectangle after clip()ctx.fillStyle="red";ctx.fillRect(0,0,...
http://www.o2fo.com/jsref/met-canvas-clip.html...為它在藍(lán)色矩形下面:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.fillStyle="yellow";ctx.fillRect(0,0,250,100)ctx.setTransform(1,0.5,-0.5,1,30,10);ctx.fillStyle="red";ctx.fillRect(0,0,250,100);ctx.setTransfo...
http://www.o2fo.com/jsref/met-canvas-settransform.html...一條二次貝塞爾曲線:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.beginPath();ctx.moveTo(20,20);ctx.quadraticCurveTo(20,100,200,20);ctx.stroke();嘗試一下 ?瀏覽器支持Internet Explorer 9、Firefox、...
http://www.o2fo.com/jsref/met-canvas-quadraticcurveto.html...,使用的字體是 "Arial":YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.font="30px Arial";ctx.fillText("Hello World",10,50);嘗試一下 ?瀏覽器支持Internet Explorer 9、Firefox、Opera、Chrome 和 Safari...
http://www.o2fo.com/jsref/prop-canvas-font.html...閱 createImageData() 方法,它可創(chuàng)建新的空白 ImageData 對(duì)象。JavaScript 語(yǔ)法JavaScript 語(yǔ)法:context.putImageData(imgData,x,y,dirtyX,dirtyY,dirtyWidth,dirtyHeight);參數(shù)值參數(shù)描述imgData規(guī)定要放回畫布的 ImageData 對(duì)象。xImageData 對(duì)象左上角的 x 坐標(biāo),以...
http://www.o2fo.com/jsref/met-canvas-putimagedata.html...色和一個(gè)綠色的矩形:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.fillStyle="red";ctx.fillRect(20,20,75,50);// Turn transparency onctx.globalAlpha=0.2;ctx.fillStyle="blue"; ctx.fillRect(50,50,75,50); ctx.fil...
http://www.o2fo.com/jsref/prop-canvas-globalalpha.html抱歉,暫時(shí)沒有相關(guān)的文章
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