管线横断面分析代码 vue写法
时间: 2023-08-06 18:12:33 浏览: 152
管线横断面分析可以用Vue框架来实现,具体实现步骤如下:
1. 创建一个vue组件,在组件中定义数据和方法。
```
<template>
<div>
<!--显示管线横断面图-->
<canvas ref="canvas"></canvas>
<!--选择管线-->
<select v-model="selectedPipe">
<option v-for="pipe in pipes" :key="pipe.id" :value="pipe.id">{{pipe.name}}</option>
</select>
<!--计算按钮-->
<button @click="calculate">计算</button>
</div>
</template>
<script>
export default {
data() {
return {
pipes: [
{ id: 1, name: "水管1", data: [...] },
{ id: 2, name: "水管2", data: [...] },
{ id: 3, name: "水管3", data: [...] }
],
selectedPipe: 1
};
},
methods: {
calculate() {
//执行计算逻辑
}
}
};
</script>
```
2. 在mounted钩子函数中初始化canvas对象,并在watch钩子函数中监听数据变化,更新管线横断面图。
```
<template>
<div>
<!--显示管线横断面图-->
<canvas ref="canvas"></canvas>
<!--选择管线-->
<select v-model="selectedPipe">
<option v-for="pipe in pipes" :key="pipe.id" :value="pipe.id">{{pipe.name}}</option>
</select>
<!--计算按钮-->
<button @click="calculate">计算</button>
</div>
</template>
<script>
export default {
data() {
return {
pipes: [
{ id: 1, name: "水管1", data: [...] },
{ id: 2, name: "水管2", data: [...] },
{ id: 3, name: "水管3", data: [...] }
],
selectedPipe: 1
};
},
mounted() {
const canvas = this.$refs.canvas;
const ctx = canvas.getContext("2d");
//绘制初始横断面图
this.drawChart(ctx, this.pipes[0].data);
},
watch: {
selectedPipe(val) {
const canvas = this.$refs.canvas;
const ctx = canvas.getContext("2d");
//绘制选中管线的横断面图
this.drawChart(ctx, this.pipes[val - 1].data);
}
},
methods: {
calculate() {
//执行计算逻辑
},
drawChart(ctx, data) {
//绘制横断面图
}
}
};
</script>
```
3. 在drawChart方法中实现绘制横断面图的逻辑。
```
<template>
<div>
<!--显示管线横断面图-->
<canvas ref="canvas"></canvas>
<!--选择管线-->
<select v-model="selectedPipe">
<option v-for="pipe in pipes" :key="pipe.id" :value="pipe.id">{{pipe.name}}</option>
</select>
<!--计算按钮-->
<button @click="calculate">计算</button>
</div>
</template>
<script>
export default {
data() {
return {
pipes: [
{ id: 1, name: "水管1", data: [...] },
{ id: 2, name: "水管2", data: [...] },
{ id: 3, name: "水管3", data: [...] }
],
selectedPipe: 1
};
},
mounted() {
const canvas = this.$refs.canvas;
const ctx = canvas.getContext("2d");
//绘制初始横断面图
this.drawChart(ctx, this.pipes[0].data);
},
watch: {
selectedPipe(val) {
const canvas = this.$refs.canvas;
const ctx = canvas.getContext("2d");
//绘制选中管线的横断面图
this.drawChart(ctx, this.pipes[val - 1].data);
}
},
methods: {
calculate() {
//执行计算逻辑
},
drawChart(ctx, data) {
//清空画布
ctx.clearRect(0, 0, canvas.width, canvas.height);
//绘制坐标轴
ctx.beginPath();
ctx.moveTo(50, canvas.height - 50);
ctx.lineTo(canvas.width - 50, canvas.height - 50);
ctx.stroke();
ctx.beginPath();
ctx.moveTo(50, 50);
ctx.lineTo(50, canvas.height - 50);
ctx.stroke();
//绘制数据曲线
ctx.beginPath();
ctx.moveTo(50, canvas.height - 50);
for (let i = 0; i < data.length; i++) {
const x = 50 + ((canvas.width - 100) / (data.length - 1)) * i;
const y = canvas.height - 50 - ((canvas.height - 100) / (Math.max(...data) - Math.min(...data))) * (data[i] - Math.min(...data));
ctx.lineTo(x, y);
}
ctx.stroke();
}
}
};
</script>
```
以上代码只是示例代码,实际的管线横断面分析需要根据具体需求进行修改。
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