public/examples/ts/gl/scatter3d-orthographic.js

/*
title: 三维散点图正交投影
category: scatter3D
theme: dark
titleCN: 三维散点图正交投影
*/

$.getScript(
  'https://fastly.jsdelivr.net/npm/simplex-noise@2.4.0/simplex-noise.js'
).done(function () {
  var noise = new SimplexNoise(Math.random);
  function generateData(theta, min, max) {
    var data = [];
    for (var i = 0; i <= 40; i++) {
      for (var j = 0; j <= 40; j++) {
        for (var k = 0; k <= 40; k++) {
          var value = noise.noise3D(i / 20, j / 20, k / 20);
          valMax = Math.max(valMax, value);
          valMin = Math.min(valMin, value);
          data.push([i, j, k, value * 2 + 4]);
        }
      }
    }
    return data;
  }
  var valMin = Infinity;
  var valMax = -Infinity;
  var data = generateData(2, -5, 5);
  console.log(valMin, valMax);

  myChart.setOption(
    (option = {
      visualMap: {
        show: false,
        min: 2,
        max: 6,
        inRange: {
          symbolSize: [0.5, 15],
          color: [
            '#313695',
            '#4575b4',
            '#74add1',
            '#abd9e9',
            '#e0f3f8',
            '#ffffbf',
            '#fee090',
            '#fdae61',
            '#f46d43',
            '#d73027',
            '#a50026'
          ],
          colorAlpha: [0.2, 1]
        }
      },
      xAxis3D: {
        type: 'value'
      },
      yAxis3D: {
        type: 'value'
      },
      zAxis3D: {
        type: 'value'
      },
      grid3D: {
        axisLine: {
          lineStyle: { color: '#fff' }
        },
        axisPointer: {
          lineStyle: { color: '#fff' }
        },
        viewControl: {
          projection: 'orthographic'
        }
      },
      series: [
        {
          type: 'scatter3D',
          data: data
        }
      ]
    })
  );
});