docs: public static float calculateAngularWidth(final float segment, double radius) {
          // The item is perpendicular to the center of the origin at *its*
          // center, like a "T". The triangle, then, is between the origin,
          // the item's center, and the "edge" of the item's bounding box. The
          // length of the "opposite" side, therefore, is only half the item's
          // geometric width.
          final double opposite = segment / 2;
          final double tangent = opposite / radius; // The rho is the
                                                    // "adjacent"
                                                    // side
          final double radians = Math.atan(tangent);
  
          // The previous calculation only gives us half the angular width,
          // since it is reckoned from the item's center to its edge.
          return (float) Math.toDegrees(radians) * 2;
      }