Method zoomInvScale

ui/src/components/pixi/PixiRenderer.ts:806–811

* Compute the inverse-scale factor for sprites/labels, adjusted by zoom exponent. * At exponent 1: fully cancels world zoom (fixed screen size). * At exponent 0: no cancellation (world-space scaling).

()

   * At exponent 0: no cancellation (world-space scaling).
   */
  private zoomInvScale(): number {
    // exponent 1 = fixed screen size (fully cancel world zoom)
    // exponent 0 = full world-space (no cancellation — nodes scale with zoom)
    // Simplified: (1/vpScale)^exponent
    return Math.pow(1 / this.vp.scale, this.zoomSizeExponent);
  }

  /**
   * Inverse-scale for labels only — always fully cancels viewport zoom