g6/demos/custom-node-area-chart.html
2020-02-14 11:30:12 +08:00

189 lines
5.3 KiB
HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>面积图节点</title>
<style>
#mountNode {
background: #001528;
}
</style>
</head>
<body>
<div id="mountNode"></div>
<script src="../build/g6.js"></script>
<script>
/**
* 该案例演示如何使用G6自定义面积图节点
* by 镜曦
*
*/
// 自定义面积图节点
G6.registerNode('area', {
draw(cfg, group) {
const size = cfg.size || [40, 40]; // 如果没有 size 时的默认大小
const width = size[0];
const height = size[1];
const baseR = 30;
let nowAngle = 0;
// Ref line
let refR = baseR;
const refInc = 10;
for (let i = 0; i < 6; i++) {
group.addShape('circle', {
// attrs: style
attrs: {
x: 0, // 居中
y: 0,
r: (refR += refInc),
stroke: 'rgba(255,255,255,0.4)',
lineDash: [4, 4],
},
});
}
const everyIncAngle = (2 * Math.PI * (360 / 5)) / 360;
const tempIncValues = [baseR, baseR, baseR, baseR, baseR];
const allRs = [];
cfg.details.forEach(cat => {
const oneRs = [];
cat.values.forEach((v, i) => {
const R = tempIncValues[i] + v * 0.4;
oneRs.push(R);
tempIncValues[i] = R;
});
allRs.push(oneRs);
});
const strokeColors = [
'rgba(37,203,253,1)',
'rgba(254,255,123,1)',
'rgba(254,171,58,1)',
'rgba(254,87,102,1)',
'rgba(22,193,118,1)',
];
const fillColors = [
'rgba(37,203,253,0.5)',
'rgba(254,255,123,0.5)',
'rgba(254,171,58,0.5)',
'rgba(254,87,102,0.5)',
'rgba(22,193,118,0.5)',
];
allRs.reverse().forEach((Rs, index) => {
let curAngle = 0;
const poss = [];
Rs.forEach(r => {
const xPos = r * Math.cos(curAngle);
const yPos = r * Math.sin(curAngle);
curAngle += everyIncAngle;
poss.push([xPos, yPos]);
});
const Ls = poss.map((p, i) => {
if (i === 0) {
return ['M', ...p];
}
return ['L', ...p];
});
console.log('Ls', ...Ls);
const shape = group.addShape('path', {
attrs: {
path: [
...Ls,
['Z'], // 封闭
],
stroke: strokeColors[index],
fill: fillColors[index],
},
});
});
let nowAngle2 = 0;
const everyIncAngleCat = (2 * Math.PI * (360 / 5)) / 360;
for (let i = 0; i < 5; i++) {
const r = 30 + 60;
const xPos = r * Math.cos(nowAngle2);
const yPos = r * Math.sin(nowAngle2);
const shape = group.addShape('path', {
attrs: {
path: [
['M', 0, 0],
['L', xPos, yPos],
],
lineDash: [4, 4],
stroke: 'darkgray', // 颜色应用到边上,如果应用到填充,则使用 fill: cfg.color
},
});
nowAngle2 += everyIncAngleCat;
}
// 添加一个和背景色相同的圆形
group.addShape('circle', {
// attrs: style
attrs: {
x: 0, // 居中
y: 0,
r: baseR,
fill: cfg.centerColor,
stroke: 'darkgray',
},
});
if (cfg.label) {
group.addShape('text', {
// attrs: style
attrs: {
x: 0, // 居中
y: 0,
textAlign: 'center',
textBaseline: 'middle',
text: cfg.label,
fill: 'white',
fontStyle: 'bold',
},
});
}
return group;
},
});
const graph = new G6.Graph({
container: 'mountNode',
width: 500,
height: 500,
});
const data = {
nodes: [
{
id: 'nodeD',
x: 150,
y: 200,
label: 'Area',
shape: 'area',
anchorPoints: [
[0, 0.5],
[1, 0.5],
],
details: [
{ cat: 'pv', values: [20, 30, 40, 30, 30], color: '#25cbfd' },
{ cat: 'dal', values: [40, 30, 20, 30, 50], color: '#feff7b' },
{ cat: 'uv', values: [40, 30, 30, 40, 40], color: '#feab3a' },
{ cat: 'sal', values: [20, 30, 50, 20, 20], color: '#fe5766' },
{ cat: 'cal', values: [10, 10, 20, 20, 20], color: '#16c176' },
],
centerColor: '#0066FF',
},
],
};
graph.data(data);
graph.render();
</script>
</body>
</html>