more generic point in result_point_util

src/result_point_utils.rs

@@ -26,7 +26,7 @@ pub fn orderBestPatterns<T: Into<Point> + Copy>(patterns: &mut [T; 3]) {
     // This asks whether BC x BA has a positive z component, which is the arrangement
     // we want for A, B, C. If it's negative, then we've got it flipped around and
     // should swap A and C.
-    if crossProductZ(pointA.into(), pointB.into(), pointC.into()) < 0.0 {
+    if Point::crossProductZ(pointA.into(), pointB.into(), pointC.into()) < 0.0 {
         std::mem::swap(&mut pointA, &mut pointC);
     }
 
@@ -34,10 +34,3 @@ pub fn orderBestPatterns<T: Into<Point> + Copy>(patterns: &mut [T; 3]) {
     patterns[1] = pointB;
     patterns[2] = pointC;
 }
-
-/**
- * Returns the z component of the cross product between vectors BC and BA.
- */
-fn crossProductZ(a: Point, b: Point, c: Point) -> f32 {
-    ((c.x - b.x) * (a.y - b.y)) - ((c.y - b.y) * (a.x - b.x))
-}

src/rxing_result_point.rs

@@ -365,6 +365,13 @@ where
             y: self.y.floor(),
         }
     }
+
+    /**
+     * Returns the z component of the cross product between vectors BC and BA.
+     */
+    pub fn crossProductZ(a: PointT<T>, b: PointT<T>, c: PointT<T>) -> T {
+        ((c.x - b.x) * (a.y - b.y)) - ((c.y - b.y) * (a.x - b.x))
+    }
 }
 
 impl From<(i32, i32)> for Point {