Function draw

web/rusense/app/views/sensing.js:100–112

(field)

    window.addEventListener('resize', resize);

    const draw = (field) => {
      if (!field?.values?.length || !field.grid_size) return;
      const [gx, , gz] = field.grid_size;
      const cols = gx || Math.sqrt(field.values.length) | 0;
      const rows = gz || (field.values.length / cols) | 0;
      const cw = canvas.width / cols, ch = canvas.height / rows;
      for (let z = 0; z < rows; z++) {
        for (let x = 0; x < cols; x++) {
          ctx.fillStyle = heat(field.values[z * cols + x] || 0);
          ctx.fillRect(x * cw, z * ch, cw + 1, ch + 1);
        }
      }
    };

    // --- Geofence floor-plan ---------------------------------------------
    const gfCanvas = $('#gf-canvas');