Function handleModelFile

js/main.js:2890–3042

(file)

      roundToPrecision(base + direction * step, precision + 2) 
    );

    applyFn(next);
  }, { passive: false });
}

function linkSlider(slider, valInput, onChangeFn, livePreview = true) {
  const isSpan = valInput.tagName === 'SPAN';
  const applyLinkedValue = (raw) => {
    const clamped = clampToInputBounds(valInput, raw);
    slider.value = Math.max(parseFloat(slider.min), Math.min(parseFloat(slider.max), clamped));
    onChangeFn(clamped);
    valInput.value = formatInputValue(valInput, clamped);
    if (livePreview) {
      clearTimeout(previewDebounce);
      previewDebounce = setTimeout(updatePreview, 80);
    }
  };
  slider.addEventListener('input', () => {
    const v = parseFloat(slider.value);
    const display = onChangeFn(v);
    if (isSpan) valInput.textContent = display; else valInput.value = display;
    if (livePreview) {
      clearTimeout(previewDebounce);
      previewDebounce = setTimeout(updatePreview, 80);
    }
  });
  // Double-click resets to default value
  slider.addEventListener('dblclick', () => {
    slider.value = slider.defaultValue;
    const v = parseFloat(slider.value);
    const display = onChangeFn(v);
    if (isSpan) valInput.textContent = display; else valInput.value = display;
    if (livePreview) {
      clearTimeout(previewDebounce);
      previewDebounce = setTimeout(updatePreview, 80);
    }
  });
  if (!isSpan) {
    valInput.addEventListener('change', () => {
      const raw = parseFloat(valInput.value);
      if (isNaN(raw)) { valInput.value = formatInputValue(valInput, parseFloat(slider.value)); return; }
      applyLinkedValue(raw);
    });
    addFineWheelSupport(valInput, applyLinkedValue);
  }
}

function formatM(n) {
  return n >= 1_000_000 ? `${(n / 1_000_000).toFixed(1)} M`
       : n >= 1_000    ? `${(n / 1_000).toFixed(0)} k`
       : String(n);
}

// ── STL loading ───────────────────────────────────────────────────────────────

function loadDefaultCube() {
  // Create a 50×50×50 mm box; convert to non-indexed so it behaves like a
  // real STL (buildAdjacency and displacement expect non-indexed geometry).