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canvas-moteur

v0.4.2

Published

draw-tools canvas

Downloads

2

Readme

canvas-moteur

更简单的进行图形绘制,以及一些利于构建流程图、关系图或其它应用的功能(例如对图形交互事件监听,拖拽图形,添加锚点,连接锚点等)

安装

$ npm install canvas-moteur

使用

import { Draw } from 'canvas-moteur'

const draw = new Draw({ el: 'canvas', isTranslate: true, isScale: true })

draw.addRect({
    x: 20,
    y: 10,
    width: 150,
    height: 100,
    anchors: ['left', 'right'],
    style: {
        backgroundColor: 'green'
    }
})  

draw.addCircle({
    x: 300,
    y: 400,
    r: 50,
    anchors: ['bottom', 'left'],
    style: {
        backgroundColor: 'red',
    }
})

draw.render();

// 重置画布变换
function resetCanvasTransform() {
    draw.resetTransform()
}

// 撤销
function undo() {
    draw.dataCenter.undo()
}

// 重做
function redo() {
    draw.dataCenter.redo()
}

功能

  • [x] 绘制矩形、圆形

  • [x] 绘制线条

  • [x] 绘制图片

  • [x] 绘制折线

  • [x] 通过路径(Path)绘制自定义图形

  • [x] 可以自由移动图形

  • [x] 有图形的事件监听 (mouserover、mousedown、mouseleave等)

  • [x] 可以相当简单的在图形中添加锚点

  • [x] 可以自由的连接锚点,线的位置会随着图形的位置变化

  • [ ] 框选

  • [ ] 拉索选择

  • [x] 撤销和重做功能

  • [ ] 高亮相邻节点与线

  • [ ] 上下文菜单

  • [x] 移动画布

  • [x] 缩放画布