HARP-12685: Optimize label placement

Signed-off-by: stefan.dachwitz <[email protected]>

@here/harp-mapview/lib/ScreenProjector.ts

@@ -96,27 +96,27 @@ export class ScreenProjector {
      * Test if the area around the specified point is visible on the screen.
      *
      * @param {(Vector3Like)} source The centered source vector to project.
-     * @param {(Number)} width Half of the width of the area in NDC space [0..1].
-     * @param {(Number)} height Half of the height of the area in NDC space [0..1].
+     * @param {(Number)} halfWidth Half of the width of the area in screen space [0..1].
+     * @param {(Number)} halfHeight Half of the height of the area in screen space [0..1].
      * @param {THREE.Vector2} target The target vector.
      * @returns {THREE.Vector2} The projected vector (the parameter 'target') or undefined if
      * the area is completely outside the screen.
      */
     projectAreaToScreen(
         source: Vector3Like,
-        width: number,
-        height: number,
+        halfWidth: number,
+        halfHeight: number,
         target: THREE.Vector2 = new THREE.Vector2()
     ): THREE.Vector2 | undefined {
-        width *= 2;
-        height *= 2;
+        halfWidth *= 2;
+        halfHeight *= 2;
         const p = this.projectVector(source, ScreenProjector.tempV3);
         if (
             isInRange(p) &&
-            p.x + width >= -1 &&
-            p.x - width <= 1 &&
-            p.y + height >= -1 &&
-            p.y - height <= 1
+            p.x + halfWidth >= -1 &&
+            p.x - halfWidth <= 1 &&
+            p.y + halfHeight >= -1 &&
+            p.y - halfHeight <= 1
         ) {
             return this.ndcToScreen(p, target);
         }