// 画竖排文本,从右到左,水平居中,可以水平溢出 functiondrawTextVertical(ctx,text,x,y,width,height,hasStroke=false){ let[oldAlign,oldBaseLine]=[ctx.textAlign,ctx.textBaseline]; [ctx.textAlign,ctx.textBaseline]=['center','middle'] letlineWidth=parseInt(ctx.font)// ctx.font必须以'XXpx'开头 ...
接下来:我们封装成一个方法,方便以后直接调用: /* str:要绘制的字符串 canvas:canvas对象 initX:绘制字符串起始x坐标 initY:绘制字符串起始y坐标 lineHeight:字行高,自己定义个值即可 */ function canvasTextAutoLine(str,canvas,initX,initY,lineHeight){ var ctx = canvas.getContext("2d"); var lineWidth =...
To draw text on the canvas, the most important property and methods are: font- defines the font properties for the text fillText()- draws "filled" text strokeText()- draws "outlined" text (no fill) The font Property Thefontproperty defines the font to be used and the size of the font...
DOCTYPEHTML><html><style></style><bodystyle="padding:0px;margin:0px;"><divstyle="width:500px; height:500px; position:relative;"><canvasid="canvas_id"width="500px"height="500px"></canvas><inputid="input_id"style="top:20px;left:20px;position:absolute;outline:none;border:0px;font-size...
To draw text on a canvas, the most important property and methods are:font - defines the font properties for the text fillText(text,x,y) - draws "filled" text on the canvas strokeText(text,x,y) - draws text on the canvas (no fill)...
drawText(){varTEXT_X=65,TEXT_Y=canvas.height/2+35,text=newText.value;context.strokeStyle='blue';if(fillRadio.checked){context.fillStyle='rgba(0,255,255,0.5)';context.fillText(text,TEXT_X,TEXT_Y);}if(gradientRadio.checked){context.fillStyle=gradient;context.fillText(text,TEXT_X,TEXT_Y);...
绘制文本 ·设置文本的属性 ·填充文本 //画文本 functiondrawText(canvas,context) { varselectObj =document.get...
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In HTML5, canvas element supports basic text rendering on a line-by-line basis. There are two methods fillText() and strokeText() to draw text on canvas. You can use font property (type : string) to specify a number of text setting such as style, weight, size, and font. The style ...
}//画文本functiondrawText() { ctx.fillStyle='orange'; ctx.strokeStyle='cornflowerblue'; ctx.fillText(text, canvasOne.width/2, canvasOne.height/2); ctx.strokeText(text, canvasOne.width/2, cancasOne.height/2); }//画中间的小正方形functiondrawCenterSquare() { ...