Function norm

app/rcc/scripts/painter/default_template.js:93–96

(v, lo, hi)

  }

  function norm(v, lo, hi) {
    if (!Number.isFinite(v) || hi <= lo) return 0.5;
    return Math.max(0, Math.min(1, (v - lo) / (hi - lo)));
  }

  const nx = norm(dsX.value, dsX.min, dsX.max);
  const ny = norm(dsY.value, dsY.min, dsY.max);