HTML5 canvas 箭头教程

要使用 Konva 创建一个箭头形状，我们可以实例化一个 Konva.Arrow() 对象。

有关所有属性和方法的完整列表，请参见 箭头 API 参考。

Vanilla

import Konva from 'konva';

const stage = new Konva.Stage({
  container: 'container',
  width: window.innerWidth,
  height: window.innerHeight
});

const layer = new Konva.Layer();
stage.add(layer);

const arrow = new Konva.Arrow({
  x: stage.width() / 4,
  y: stage.height() / 4,
  points: [0, 0, 100, 100],
  pointerLength: 20,
  pointerWidth: 20,
  fill: 'black',
  stroke: 'black',
  strokeWidth: 4
});

layer.add(arrow);

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React

import { Stage, Layer, Arrow } from 'react-konva';

const App = () => {
  return (
    <Stage width={window.innerWidth} height={window.innerHeight}>
      <Layer>
        <Arrow
          x={window.innerWidth / 4}
          y={window.innerHeight / 4}
          points={[0, 0, 100, 100]}
          pointerLength={20}
          pointerWidth={20}
          fill="black"
          stroke="black"
          strokeWidth={4}
        />
      </Layer>
    </Stage>
  );
};

export default App;

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Vue

<template>
  <v-stage :config="stageSize">
    <v-layer>
      <v-arrow :config="arrowConfig" />
    </v-layer>
  </v-stage>
</template>

<script setup>
const stageSize = {
  width: window.innerWidth,
  height: window.innerHeight
};

const arrowConfig = {
  x: window.innerWidth / 4,
  y: window.innerHeight / 4,
  points: [0, 0, 100, 100],
  pointerLength: 20,
  pointerWidth: 20,
  fill: 'black',
  stroke: 'black',
  strokeWidth: 4
};
</script>

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