BREP.io/apiExamples/BREP_Transforms.html at master · mmiscool/BREP.io · GitHub

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<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
      <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
<title>BREP API Example: Transforms</title>
    <link rel="stylesheet" href="./example.css" />
  </head>
  <body>
    <main>
      <header class="example-header">
        <div>
          <h1>BREP Transforms</h1>
          <p class="lead">Clones a solid, bakes TRS transforms, mirrors across a plane, then unions the result.</p>
        </div>
        <nav class="example-nav">
          <a href="./index.html">All Examples</a>
          <a href="../index.html">BREP CAD App</a>
          <a href="https://github.com/mmiscool/BREP/blob/master/apiExamples/BREP_Transforms.html" target="_blank" rel="noopener noreferrer">Source on GitHub</a>
        </nav>
      </header>

      <div class="row">
        <button id="btn-run">Run Example</button>
        <span id="status" class="status pending">Ready</span>
      </div>

      <pre id="log">(Click "Run Example")</pre>
    </main>

    <script type="module">
      import { BREP } from '../dist-kernel/brep-kernel.js';

      const statusEl = document.getElementById('status');
      const logEl = document.getElementById('log');
      const btnRun = document.getElementById('btn-run');

      const setStatus = (text, cls) => {
        statusEl.textContent = text;
        statusEl.className = `status ${cls}`;
      };

      const fmt = (num) => Number(num).toFixed(6);

      const write = (...parts) => {
        const line = parts.map((part) => (typeof part === 'string' ? part : JSON.stringify(part))).join(' ');
        logEl.textContent += `${line}\n`;
        console.log(...parts);
      };

      const describe = (label, solid) => {
        write(
          `${label.padEnd(16)} volume=${fmt(solid.volume())} area=${fmt(solid.surfaceArea())} triangles=${solid.getTriangleCount()}`,
        );
      };

      const runExample = () => {
        logEl.textContent = '';
        setStatus('Running...', 'pending');

        const base = new BREP.Cube({ x: 2.2, y: 1.4, z: 1.0, name: 'BaseCube' });
        const moved = base.clone().bakeTRS({
          position: [2.0, 0.4, 0.3],
          rotationEuler: [0, 35, 20],
          scale: [1.1, 0.85, 1.25],
        });
        const mirrored = moved.mirrorAcrossPlane([0, 0, 0], [1, 0, 0]);
        const combined = moved.union(mirrored);

        write('--- Transform Summary ---');
        describe('base', base);
        describe('moved', moved);
        describe('mirrored', mirrored);
        describe('combined', combined);

        if (combined.volume() <= moved.volume()) {
          throw new Error('Combined solid volume should be greater than a single moved solid.');
        }

        setStatus('Completed', 'ok');
      };

      btnRun.addEventListener('click', () => {
        try {
          runExample();
        } catch (error) {
          console.error(error);
          write('ERROR:', error?.stack || error?.message || String(error));
          setStatus('Failed', 'err');
        }
      });

      try {
        runExample();
      } catch (error) {
        console.error(error);
        write('ERROR:', error?.stack || error?.message || String(error));
        setStatus('Failed', 'err');
      }
    </script>
  </body>
</html>