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主要用于绘制 3D 折线图。
首先需要使用 @antv/g-webgl 作为渲染器并注册以下两个插件:
然后设置 z 通道、scale 和 z 坐标轴。无需在场景中添加光源。
import { Runtime, corelib, extend } from '@antv/g2';import { threedlib } from '@antv/g2-extension-3d';import { CameraType } from '@antv/g';import { Renderer as WebGLRenderer } from '@antv/g-webgl';import { Plugin as ThreeDPlugin } from '@antv/g-plugin-3d';import { Plugin as ControlPlugin } from '@antv/g-plugin-control';const renderer = new WebGLRenderer();renderer.registerPlugin(new ControlPlugin());renderer.registerPlugin(new ThreeDPlugin());const Chart = extend(Runtime, {...corelib(),...threedlib(),});// 初始化图表实例const chart = new Chart({container: 'container',renderer,width: 500,height: 500,depth: 400,});const pointCount = 31;let r;const data = [];for (let i = 0; i < pointCount; i++) {r = 10 * Math.cos(i / 10);data.push({x: r * Math.cos(i),y: r * Math.sin(i),z: i,});}chart.options({type: 'line3D',data: data,encode: { x: 'x', y: 'y', z: 'z', size: 4 },coordinate: { type: 'cartesian3D' },scale: { x: { nice: true }, y: { nice: true }, z: { nice: true } },legend: false,axis: {x: { gridLineWidth: 2 },y: { gridLineWidth: 2, titleBillboardRotation: -Math.PI / 2 },z: { gridLineWidth: 2 },},});chart.render().then(() => {const { canvas } = chart.getContext();const camera = canvas.getCamera();camera.setPerspective(0.1, 5000, 45, 500 / 500);camera.setType(CameraType.ORBITING);});
更多的案例,可以查看图表示例页面。