mathbox/examples/test/context.html at master · unconed/mathbox · GitHub

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<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <title>MathBox - Raw Context</title>
    <script
      type="text/javascript"
      src="https://cdn.jsdelivr.net/npm/three@0.137.0/build/three.min.js"
    ></script>
    <!--
      - a minified version mathbox.min.js is also available;
      - recommend using a specific version (not @latest) in public sites
    -->
    <script
      type="text/javascript"
      src="https://cdn.jsdelivr.net/npm/mathbox@latest/build/bundle/mathbox.js"
    ></script>
    <link
      rel="stylesheet"
      href="https://cdn.jsdelivr.net/npm/mathbox@latest/build/mathbox.css"
    />
    <meta name="viewport" content="initial-scale=1, maximum-scale=1" />
  </head>
  <body>
    <script>
      var WIDTH = 640;
      var HEIGHT = 480;

      // Vanilla Three.js
      var renderer = new THREE.WebGL1Renderer();
      var scene = new THREE.Scene();
      var camera = new THREE.PerspectiveCamera(60, WIDTH / HEIGHT, 0.01, 1000);

      // Insert into document
      document.body.appendChild(renderer.domElement);

      // MathBox context
      var context = new MathBox.Context(renderer, scene, camera).init();
      var mathbox = context.api;

      // Set size
      renderer.setSize(WIDTH, HEIGHT);
      context.resize({ viewWidth: WIDTH, viewHeight: HEIGHT });

      // Place camera and set background
      camera.position.set(0, 0, 3);
      renderer.setClearColor(new THREE.Color(0xffffff), 1.0);

      // MathBox elements
      view = mathbox
        .set({
          focus: 3,
        })
        .cartesian({
          range: [
            [-2, 2],
            [-1, 1],
            [-1, 1],
          ],
          scale: [2, 1, 1],
        });

      view.axis({
        detail: 30,
      });

      view.axis({
        axis: 2,
      });

      view.scale({
        divide: 10,
      });
      view.ticks({
        classes: ["foo", "bar"],
        width: 2,
      });

      view.grid({
        divideX: 30,
        width: 1,
        opacity: 0.5,
        zBias: -5,
      });

      view.interval({
        id: "sampler",
        width: 64,
        expr: function (emit, x, i, t) {
          y = Math.sin(x + t) * 0.7;
          emit(x, y);
        },
        channels: 2,
      });

      view.line({
        points: "#sampler",
        color: 0x3090ff,
        width: 5,
      });

      frame = function () {
        requestAnimationFrame(frame);
        context.frame();
        renderer.render(scene, camera);
      };

      requestAnimationFrame(frame);
    </script>
  </body>
</html>