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canvas-useful

v0.0.5

Published

for happliy use canvas

Downloads

12

Vulnerabilities

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Links

Git

Maintainers

tiandaohuoyantiandaohuoyan

Keywords

canvascanvas-studycanvas-api

Readme

for canvas more easily to use

<编译后的代码未经过babel转译，引入后自行配置babel规则>

EasyCanvas-constructor

  • el: canvas元素的ID

API

  • useFont 使用自定义字体：传入字体别名与字体url，返回Promise，为保证后续绘制过程正常使用自定义字体，建议使用await等待字体文件加载成功再使用
  • useText 渲染文本：在给定的(x,y)坐标上进行文字渲染，支持自定义文字style
  • setPattern 创建图案，暂只支持img类型，传入图片资源地址，返回Promise,当图片加载成功，将图片元素转换为图案返回。
  • useImg 使用图片绘制到canvas画布上，返回Promise
  • getImageData 从canvas上获取ImageData对象
  • putImageData 将ImageData对象以位图的形式绘制到canvas
  • useVideo 使用视频资源
  • userFill 使用填充功能
  • useGraphics 图形绘制接口
  • usePaintBrush 使用画笔，用于线段绘制，支持直线和曲线绘制
  • userCustomset 用户自定义配置
  • executeCustomFn 用户自定义执行函数