Text can be drawn on the canvas using various fonts. Afontis a set of type characters of a particular typeface design and size. Various typefaces include Helvetica, Georgia, Times, or Verdana. A collection of glyphs with a particular style form afont face. A collection of font faces forms...
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)...
Vertical alignment选项:top|hanging|middle|alphabetic|ideographic|bottom 例:context.textBaseline = "top"; 当我们把一段文本渲染在canvas上时,文本本身显示在画布上,会占据一个矩形块(看不见的矩形,我们暂且称其为IBox(invisible bounding box)); 这里提到的对齐方式,都是针些这个文本所占据的这个IBox来操作的(I...
1<head>2<title>Stroking and Filling Text</title>3<style>4body{5background:#eeeeee;6}78#canvas{9margin-left:10px;10-webkit-box-shadow:rgba(0, 0, 0, 0.2) 2px 2px 4px;11-moz-box-shadow:rgba(0, 0, 0, 0.2) 2px 2px 4px;12box-shadow:rgba(0, 0, 0, 0.2) 2px 2px 4px;13...
Write the outlined text on the canvas. Start in position (10,80): Your browser does not support the HTML5 canvas tag. <script>const canvas = document.getElementById("myCanvas"); const ctx = canvas.getContext("2d"); ctx.font = "50px Arial";ctx.strokeStyle = "purple"; ctx....
textRequired. The text-string to be drawn xRequired. The x-coordinate of the start of the string yRequired. The y-coordinate of the start of the string maxwidthOptional. The maximum width of the text-string Example Set font to 50px "Arial" and write the outlined text on the canvas. ...
<p><span style="font-family:comic sans ms,sans-serif;font-size:16px;">html5 canvas中支持对text文本进行渲染;</span><br /> <span style="font-family:comic sans ms,sans-serif;font-size:16px;">直接的理解就是把text绘制在画布上,并像图形一样处理它(可以加shadow、gradient、pattern、color fil...
编程视频教程canvas文本样式设置文本颜色修改文本描边文本对齐文本宽度测量多行文本绘制 本视频主要介绍了如何在canvas中添加和处理文本。首先,通过context的font属性设置文本的基本样式,包括文本的样式、大小和字体。接着,讲解了如何修改文本颜色和为文本添加描边效果。此外,还介绍了文本的水平和垂直对齐方式,并通过示例展示...
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);...
canvasOne.height/2); ctx.strokeText(text, canvasOne.width/2, cancasOne.height/2); }//画中间的小正方形functiondrawCenterSquare() { ctx.fillStyle='rgba(255,0,0,0.4)'; ctx.strokeStyle='black'; ctx.fillRect(canvasOne.width/2-square_width/2, ...