vis.js造型曲面3d圖形

DogLeftover發表於2024-04-23
JS3D
  • 程式碼案例
<!DOCTYPE html>
<html>
  <head>
    <title>Graph 3D demo</title>
    <style>
        body {
          font: 10pt arial;
        }

        fieldset {
          width: fit-content;
        }

        fieldset > div {
          float: left;
        }

        fieldset > div + div {
          margin-left: 100px;
        }
    </style>
    <script
      type="text/javascript"
      src="https://unpkg.com/vis-graph3d@latest/dist/vis-graph3d.min.js"
    ></script>
    <script type="text/javascript">
        var data = null;
        var graph = null;

        function custom(x, y) {
          return Math.sin(x / 50) * Math.cos(y / 50) * 50 + 50;
        }

        // Called when the Visualization API is loaded.
        function drawVisualization() {
          var radioButtons = document.getElementsByName("style");
          var selectedRadio = null;
          radioButtons.forEach(function (radioButton) {
            if (radioButton.checked === true) {
              selectedRadio = radioButton;
            }
          });
          const style = (selectedRadio && selectedRadio.value) || null;

          // Create and populate a data table.
          data = new vis.DataSet();
          // create some nice looking data with sin/cos
          var counter = 0;
          var steps = 50; // number of datapoints will be steps*steps
          var axisMax = 314;
          var axisStep = axisMax / steps;
          for (var x = 0; x < axisMax; x += axisStep) {
            for (var y = 0; y < axisMax; y += axisStep) {
              var value = custom(x, y);
              data.add({ id: counter++, x: x, y: y, z: value, style: value });
            }
          }

          // specify options
          var options = {
            width: "600px",
            height: "600px",
            style: "surface",
            showPerspective: true,
            showGrayBottom: true,
            showGrid: true,
            showShadow: true,
            showSurfaceGrid: false,
            keepAspectRatio: true,
            verticalRatio: 0.5,
          };

          if (style === "default") {
            options.colormap = ["#000FFF", "#68E8FB", "#00FF00", "#FFF000", "#FF0000"];
          } else if (style === "function") {
            options.colormap = function (x) {
              return { r: 255 * x, g: 0, b: 0, a: (1 + x) / 2 };
            };
          } else if (style === "hue") {
            options.colormap = {
              hue: {
                start: 360,
                end: -360,
                saturation: 50,
                brightness: 100,
                colorStops: 8, // How many colour gradients do we want
              },
            };
          } else if (style === "html") {
            options.colormap = ["#000000", "#6A0DAD", "#FFFFFF"];
          } // else use defaults.

          // Instantiate our graph object.
          var container = document.getElementById("mygraph");
          graph = new vis.Graph3d(container, data, options);
        }

        window.addEventListener("load", () => {
          drawVisualization();
        });

    </script>
  </head>
  <body onload="drawVisualization();">
    <fieldset>
      <legend>Select Style</legend>
      <div>
        <input
          type="radio"
          name="style"
          id="defaultStyle"
          value="default"
          checked="checked"
          onchange="drawVisualization();"
        />
        <label for="defaultStyle">Default Configuration: </label>
        <!-- <code>
          <pre>
    colormap: [
      '#000FFF',
      '#68E8FB',
      '#00FF00',
      '#FFF000',
      '#FF0000',
    ]</pre
          >
        </code> -->
      </div>
    
      <div>
        <input
          type="radio"
          name="style"
          id="functionStyle"
          value="function"
          onchange="drawVisualization();"
        />
        <label for="functionStyle">Function Configuration:</label>
        <!-- <code>
          <pre>
    colormap: function(x) {
      return {r: 255*x, g: 0, b: 0, a: (1+x)/2};
    }</pre
          >
        </code> -->
      </div>
    
      <div>
        <input
          type="radio"
          name="style"
          id="hueStyle"
          value="hue"
          onchange="drawVisualization();"
        />
        <label for="hueStyle">Hue Configuration:</label>
        <!-- <code>
          <pre>
    colormap: {
      hue: {
        start: 360,
        end: -360,
        saturation: 50,
        brightness: 100,
        colorStops: 8,
      }
    }</pre
          >
        </code> -->
      </div>
    
      <div>
        <input
          type="radio"
          name="style"
          id="htmlStyle"
          value="html"
          onchange="drawVisualization();"
        />
        <label for="htmlStyle">HTML Hex Configuration:</label>
        <!-- <code>
          <pre>
    colormap: [
      '#000000',
      '#6A0DAD',
      '#FFFFFF',
    ]</pre
          >
        </code> -->
      </div>
    </fieldset>
    
    <div id="mygraph"></div>    
      
  </body>
</html>
  • 效果圖
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