1.首先说一下canvas类: Class Overview The Canvas class holds the "draw" calls. To draw something, you need 4 basic components: A Bitmap to hold the pixels, a Canvas to host the draw calls (writing into the bitmap), a drawing primitive (e.g. Rect, Path,…
引自:http://blog.csdn.net/carlfan/article/details/8139984 1.首先说一下canvas类: Class Overview The Canvas class holds the "draw" calls. To draw something, you need 4 basic components: A Bitmap to hold the pixels, a Canvas to host the draw calls (writing…
Android利用canvas画各种图形(点.直线.弧.圆.椭圆.文字.矩形.多边形.曲线.圆角矩形) 本文链接:https://blog.csdn.net/rhljiayou/article/details/72126201.首先说一下canvas类:Class OverviewThe Canvas class holds the "draw" calls. To draw something, you need 4 basic components: A Bitmap to hol…
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Typ…
<canvas id = "myCanvas" width = '500' height = '500'> Canvas画正多边形 </canvas><script> var myCanvas = document.getElementById("myCanvas"); var context = myCanvas.getContext("2d"); function drawPath(x, y, n, r)…
前段时间由于项目需要,用到了HTML5 Canvas画图,但是没有画虚线的方法,自己写了一个HTML5 画虚线的组件. dashedLine.js if (window.CanvasRenderingContext2D && CanvasRenderingContext2D.prototype.lineTo) { CanvasRenderingContext2D.prototype.dashedLine = function (x, y, x2, y2, dashArray) { if (…
