【使用canvas画三角形】的更多相关文章

使用canvas画三角形

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用canvas画三角形的方法

<canvas id="favoriteRectangle" width="30" height="30"></canvas> <script> function drawFavoriteRectangle() {      var ctx = $('#favoriteRectangle')[0].getContext('2d');      //var ctx = bg.getContext('2d');  …

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) .

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,…

Android利用canvas画各种图形 及Paint用法 .

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…

canvas画多边形

<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)…

使用H5 canvas画一个坦克

  具体步骤如下:   1. 首先做出绘图区,作为坦克的战场   <canvas id="floor" width="800px" height="500px"></canvas> 我们给一个黑色的背景色,并且让它居中(如果对居中的各种奇淫技巧感兴趣,欢迎访问我的第一篇博客——“CSS垂直居中的11种实现方式”,点击这里进行传送 http://www.cnblogs.com/zhouhuan/p/vertical_cent…

WebGl 利用drawArrays、drawElements画三角形

效果: 代码: <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>WebGl 利用drawArrays.drawElements画三角形</title> </head> <body> <canvas id="myCanvas" width="500…

Android利用canvas画各种图形

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…

在echart组件下用canvans画三角形

//使用的canvans绘制的三角形 drawArrow(){ var canvas = document.createElement('canvas');//创建一个元素 canvas.width = 10; canvas.height = 5; var ctx = canvas.getContext('2d'); this.draw(ctx,0,0,10,0,5,5,'#ecc818','fill'); return canvas; } draw(ctx,x1, y1, x2, y2, x3…

使用javascript和canvas画月半弯

使用javascript和canvas画月半弯,月半弯好浪漫!浏览器须支持html5 查看效果:http://keleyi.com/a/bjad/8xqdm0r2.htm 以下是代码: <!doctype html> <html> <head> <title>使用javascript和canvas画月半弯-柯乐义</title> <style> canvas{display: block;border:1px dotted skybl…