Method labelGap

ui/src/components/pixi/PixiRenderer.ts:838–840

* World-space gap from a node's sprite center to the left edge of its * label. Sized so the on-screen gap (gap × vp.scale) equals the sprite's * actual on-screen radius plus a small breathing margin — the label * stays glued to the sprite edge at every zoom level (Fix #27). * * Sprite

(node: PixiNode)

   * jitter by 2–3 character widths as zoom changed.
   */
  private labelGap(node: PixiNode): number {
    return node.size * this.zoomInvScale() + 4 / this.vp.scale;
  }

  /** Counter-scale all sprites, labels, and edges for current viewport scale.
   *