Draw titles and shadows in html5 canvas_html/css_WEB-ITnose
<script> <br> <br> function createCanopyPath(context) <br> { <br> context.beginPath(); <br> <br> context.moveTo(-25,-50); <br> context.lineTo(-10,-80); <br> context.lineTo(-20,-80); <br> context.lineTo(-5,-110); <br> context.lineTo(-15,-110); <br> <br> context.lineTo(0,-140); <br> <br> context.lineTo(15,-110); <br> context.lineTo(5,-110); <br> context.lineTo(20,-80); <br> context.lineTo(10,-80); <br> context.lineTo(25,-50); <br> <br> context.closePath(); <br> } <br> <br> function drawTrails() <br> { <br> var canvas=document.getElementById('diagonal'); <br> var context=canvas.getContext('2d'); <br> <br> context.save(); <br> context.translate(130,250); <br> //绘制树冠函数 <br> createCanopyPath(context); <br> //填充树冠颜色 <br> context.lineWidth=4; <br> context.lineJoin='round'; <br> context.strokeStyle='#663300'; <br> context.fillStyle='#339900'; <br> context.fill(); <br> <br> //渐变 <br> var trunkGradient=context.createLinearGradient(-5,-50,5,-50); <br> trunkGradient.addColorStop(0,'#663300'); <br> trunkGradient.addColorStop(0.4,'#996600'); <br> trunkGradient.addColorStop(1,'#552200'); <br> //树干 <br> //context.fillStyle='#663300'; <br> context.fillStyle=trunkGradient; <br> context.fillRect(-5,-50,10,50); <br> var canopyShadow=context.createLinearGradient(0,-50,0,0); <br> canopyShadow.addColorStop(0,'rgba(0,0,0,0.5)'); <br> canopyShadow.addColorStop(0.2,'rgba(0,0,0,0.0)'); <br> context.fillStyle=canopyShadow; <br> context.fillRect(-5,-50,10,50); <br> <br> context.stroke(); <br> context.restore(); <br> //路，两条曲线 <br> context.save(); <br> context.translate(-10,350); <br> context.beginPath(); <br> context.moveTo(0,0); <br> context.quadraticCurveTo(170,-50,260,-190); <br> context.quadraticCurveTo(310,-250,410,-250); <br> context.strokeStyle='#663300'; <br> context.lineWidth=20; <br> context.stroke(); <br> context.restore(); <br> //阴影！！！！ <br> //context.save(); <br> //context.transform(1,0,-0.5,1,0,0); <br> //context.scale(1,0.6); <br> //context.fillStyle='rgba(0,0,0,0.2)'; <br> //context.fillRect(-5,-10,10,50); <br> //createCanopyPath(context); <br> //context.fill(); <br> //context.rotate(1.57); <br> //context.drawImage(myImage,0,0,100,100); <br> //context.stroke(); <br> //content.restore(); <br> //标题 <br> content.save(); <br> <br> context.font="60px impact"; <br> context.fillStyle='#996600'; <br> context.textAlign='center'; <br> context.fillText('Happy Trails!',200,60,400); <br> <br> context.stroke(); <br> content.restore(); <br> } <br> window.addEventListener("load",drawTrails,true); <br> </script>
阴影也不出来 不知道是不是rotate没起作用？还有标题 不出字啊
回复讨论(解决方案)
大神们啊···
<script> <br> <br> function createCanopyPath(context) <br> { <br> context.beginPath(); <br> <br> context.moveTo(-25,-50); <br> context.lineTo(-10,-80); <br> context.lineTo(-20,-80); <br> context.lineTo(-5,-110); <br> context.lineTo(-15,-110); <br> <br> context.lineTo(0,-140); <br> <br> context.lineTo(15,-110); <br> context.lineTo(5,-110); <br> context.lineTo(20,-80); <br> context.lineTo(10,-80); <br> context.lineTo(25,-50); <br> <br> context.closePath(); <br> } <br> <br> function drawTrails() <br> { <br> var canvas=document.getElementById('diagonal'); <br> var context=canvas.getContext('2d'); <br> <br> context.save(); <br> context.translate(130,250); <br> //绘制树冠函数 <br> createCanopyPath(context); <br> //填充树冠颜色 <br> context.lineWidth=4; <br> context.lineJoin='round'; <br> context.strokeStyle='#663300'; <br> context.fillStyle='#339900'; <br> context.fill(); <br> <br> //渐变 <br> var trunkGradient=context.createLinearGradient(-5,-50,5,-50); <br> trunkGradient.addColorStop(0,'#663300'); <br> trunkGradient.addColorStop(0.4,'#996600'); <br> trunkGradient.addColorStop(1,'#552200'); <br> //树干 <br> //context.fillStyle='#663300'; <br> context.fillStyle=trunkGradient; <br> context.fillRect(-5,-50,10,50); <br> var canopyShadow=context.createLinearGradient(0,-50,0,0); <br> canopyShadow.addColorStop(0,'rgba(0,0,0,0.5)'); <br> canopyShadow.addColorStop(0.2,'rgba(0,0,0,0.0)'); <br> context.fillStyle=canopyShadow; <br> context.fillRect(-5,-50,10,50); <br> <br> context.stroke(); <br> context.restore(); <br> //路，两条曲线 <br> context.save(); <br> context.translate(-10,350); <br> context.beginPath(); <br> context.moveTo(0,0); <br> context.quadraticCurveTo(170,-50,260,-190); <br> context.quadraticCurveTo(310,-250,410,-250); <br> context.strokeStyle='#663300'; <br> context.lineWidth=20; <br> context.stroke(); <br> context.restore(); <br> <br> <br> // context.save(); <br> // context.rotate(1.57); <br> // context.drawImage(myImage,0,0,100,100); <br> // context.restore(); <br> // //阴影！！！！ <br> // context.save(); <br> // context.transform(1,0,-0.5,1,0,0); <br> // context.scale(1,0.6); <br> // context.fillStyle='rgba(0,0,0,0.2)'; <br> // context.fillRect(-5,-50,10,50); <br> // createCanopyPath(context); <br> // context.fill(); <br> <br> //标题 <br> context.save(); <br> context.shadowColor='rgba(0,0,0,0.2)'; <br> context.shadowOffsetX=15; <br> context.shadowOffsetY=-10; <br> context.shadowBlur=2; <br> context.font="60px impact"; <br> context.fillStyle='#996600'; <br> context.textAlign='center'; <br> context.fillText('Happy Trails!',200,60,400); <br> context.restore(); <br> } <br> window.addEventListener("load",drawTrails,true); <br> </script>
文字和阴影显示出来了
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