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@moonhou/canvas-poster

v1.1.2-beta.1

Published

CanvasPoster使用canvas原生接口快速绘制简单canvas,导出base64资源。

Downloads

10

Readme

CanvasPoster

介绍

CanvasPoster使用canvas原生接口快速绘制简单canvas,导出base64资源。

Tips: betas 版本可能会有bug,请谨慎使用。

项目安装

    npm install
    # 或
    yarn install

项目运行

    npm dev
    # 或
    yarn dev

项目构建

    npm run build
    # 或
    yarn build

使用示例

  import CanvasPoster from "./lib/index.ts";
  const poster = new CanvasPoster(canvas, {
    width: window.innerWidth,
    height: 3615,
    type: "2d",
    ratio:375 / 750, // 缩放比例:canvas宽度/画稿宽度
    // 可选参数:点击区域
    target: {
      share: {
        x: 644,
        y: 58,
        width: 96,
        height: 96,
      }
    },
    // 可选参数:点击区域的回调,
    onClick: (event) => {
      // 点击位置
      console.log(event.$position);
      // 击中目标
      console.log(event.$target);
    }
  });
  poster.draw([
    {
      type: 'image',
      source: './example/image/bg.png',
      x: 0,
      y: 0,
      width: 750,
      height: 3615,
    },
    {
      type: 'text',
      source: '哈哈哈哈哈哈哈哈哈哈哈',
      x: Math.floor(320 / 2),
      y: 12,
      maxWidth: 375,
      color: '#f0f0ff'
    }
  ]);