Sankey.vue
2.03 KB
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<template>
<div ref="containerRef" class='canvas-wrapper'>
</div>
</template>
<script lang="ts" setup name="topbar">
import { ref, watch } from 'vue';
import * as echarts from "echarts";
const props = defineProps({
treeData: {
type: Array<any>,
default: [
{
source: 'a',
target: 'a1',
value: 5
},
{
source: 'a',
target: 'a2',
value: 3
},
{
source: 'b',
target: 'b1',
value: 8
},
{
source: 'a',
target: 'b1',
value: 3
},
{
source: 'b1',
target: 'a1',
value: 1
},
{
source: 'b1',
target: 'c',
value: 2
}
]
},
names: {
type: Array<any>,
default: [
{
name: 'a'
},
{
name: 'b'
},
{
name: 'a1'
},
{
name: 'a2'
},
{
name: 'b1'
},
{
name: 'c'
}
]
}
})
watch(() => props.treeData, (val) => {
setChartsOption();
})
const sankeyInstance: any = ref();
const containerRef = ref();
const setChartsOption = () => {
let option = {
tooltip: {
trigger: 'item'
},
series: [
{
type: 'sankey',
top: 80,
bottom: 40,
left: 50,
right: 50,
data: props.names,
links: props.treeData,
lineStyle: {
color: 'source',
curveness: 0.5
},
}
]
}
sankeyInstance.value.setOption(option);
sankeyInstance.value.resize();
}
const resizeObserver = ref();
const observeResize = () => {
resizeObserver.value = new ResizeObserver(() => {
sankeyInstance.value?.resize();
});
resizeObserver.value.observe(containerRef.value);
}
onMounted(() => {
nextTick(() => {
sankeyInstance.value = echarts.init(containerRef.value);
setChartsOption();
observeResize();
})
})
</script>
<style lang="scss" scoped>
.canvas-wrapper {
width: 100%;
height: 100%;
position: relative;
}
</style>