JavaScript Realtime Surface Mesh 3D Chart

1import {
2    CameraController,
3    EDrawMeshAs,
4    GradientColorPalette,
5    MouseWheelZoomModifier3D,
6    NumberRange,
7    NumericAxis3D,
8    OrbitModifier3D,
9    ResetCamera3DModifier,
10    SciChart3DSurface,
11    SurfaceMeshRenderableSeries3D,
12    UniformGridDataSeries3D,
13    Vector3,
14    zeroArray2D,
15} from "scichart";
16import { appTheme } from "../../../theme";
17
18// SCICHART CODE
19export const drawExample = async (rootElement: string | HTMLDivElement) => {
20    // Create a SciChart3DSurface
21    const { sciChart3DSurface, wasmContext } = await SciChart3DSurface.create(rootElement, {
22        theme: appTheme.SciChartJsTheme,
23    });
24
25    // Create and position the camera in the 3D world
26    sciChart3DSurface.camera = new CameraController(wasmContext, {
27        position: new Vector3(-150, 200, 150),
28        target: new Vector3(0, 50, 0),
29    });
30    // Set the worlddimensions, which defines the Axis cube size
31    sciChart3DSurface.worldDimensions = new Vector3(200, 100, 200);
32
33    // Add an X,Y and Z Axis
34    sciChart3DSurface.xAxis = new NumericAxis3D(wasmContext, { axisTitle: "X Axis" });
35    sciChart3DSurface.yAxis = new NumericAxis3D(wasmContext, {
36        axisTitle: "Y Axis",
37        visibleRange: new NumberRange(-0.3, 0.3),
38    });
39    sciChart3DSurface.zAxis = new NumericAxis3D(wasmContext, { axisTitle: "Z Axis" });
40
41    // Create a 2D array using the helper function zeroArray2D
42    // and fill this with data
43    const zSize = 50;
44    const xSize = 50;
45    const heightmapArray = zeroArray2D([zSize, xSize]);
46
47    // Create a UniformGridDataSeries3D
48    const dataSeries = new UniformGridDataSeries3D(wasmContext, {
49        yValues: heightmapArray,
50        xStep: 1,
51        zStep: 1,
52        dataSeriesName: "Uniform Surface Mesh",
53    });
54
55    const setData = (i: number) => {
56        const f = i / 10;
57        for (let z = 0; z < zSize; z++) {
58            let zVal = z - zSize / 2;
59            for (let x = 0; x < xSize; x++) {
60                let xVal = x - xSize / 2;
61                const y = (Math.cos(xVal * 0.2 + f) + Math.cos(zVal * 0.2 + f)) / 5;
62                heightmapArray[z][x] = y;
63            }
64        }
65        dataSeries.setYValues(heightmapArray);
66    };
67
68    // Create the color map
69    const colorMap = new GradientColorPalette(wasmContext, {
70        gradientStops: [
71            { offset: 1, color: appTheme.VividPink },
72            { offset: 0.9, color: appTheme.VividOrange },
73            { offset: 0.7, color: appTheme.MutedRed },
74            { offset: 0.5, color: appTheme.VividGreen },
75            { offset: 0.3, color: appTheme.VividSkyBlue },
76            { offset: 0.15, color: appTheme.Indigo },
77            { offset: 0, color: appTheme.DarkIndigo },
78        ],
79    });
80
81    // Finally, create a SurfaceMeshRenderableSeries3D and add to the chart
82    const series = new SurfaceMeshRenderableSeries3D(wasmContext, {
83        dataSeries,
84        minimum: -0.3,
85        maximum: 0.5,
86        opacity: 0.9,
87        cellHardnessFactor: 1.0,
88        shininess: 0,
89        lightingFactor: 0.0,
90        highlight: 1.0,
91        stroke: appTheme.VividBlue,
92        strokeThickness: 2.0,
93        contourStroke: appTheme.VividBlue,
94        contourInterval: 2,
95        contourOffset: 0,
96        contourStrokeThickness: 2,
97        drawSkirt: false,
98        drawMeshAs: EDrawMeshAs.SOLID_WITH_CONTOURS,
99        meshColorPalette: colorMap,
100        isVisible: true,
101    });
102
103    sciChart3DSurface.renderableSeries.add(series);
104
105    // Optional: Add some interactivity modifiers
106    sciChart3DSurface.chartModifiers.add(new MouseWheelZoomModifier3D());
107    sciChart3DSurface.chartModifiers.add(new OrbitModifier3D());
108    sciChart3DSurface.chartModifiers.add(new ResetCamera3DModifier());
109
110    let frame = 0;
111    let timer: NodeJS.Timeout;
112    const updateFunc = () => {
113        setData(frame);
114        frame++;
115    };
116    updateFunc();
117    const startUpdate = () => {
118        frame = 0;
119        timer = setInterval(updateFunc, 20);
120    };
121    const stopUpdate = () => {
122        clearInterval(timer);
123    };
124
125    return { sciChartSurface: sciChart3DSurface, wasmContext, controls: { startUpdate, stopUpdate } };
126};
127