From cac351f290dff8d4c2b517327c74676ccd2e33cb Mon Sep 17 00:00:00 2001
From: Sander Schobers <sander@schobers.eu>
Date: Wed, 1 Nov 2017 11:24:33 +0100
Subject: [PATCH] Added methods to calculate width & height for RectangleF.

---
 rectanglef.go | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/rectanglef.go b/rectanglef.go
index c5c24ba..734194e 100644
--- a/rectanglef.go
+++ b/rectanglef.go
@@ -16,7 +16,17 @@ func RectF(x0, y0, x1, y1 float64) RectangleF {
 	return RectangleF{PtF(x0, y0), PtF(x1, y1)}
 }
 
+// Dx returns the width of r.
+func (r RectangleF) Dx() float64 {
+	return r.Max.X - r.Min.X
+}
+
+// Dy returns the height of r.
+func (r RectangleF) Dy() float64 {
+	return r.Max.Y - r.Min.Y
+}
+
 // Size returns the size of the rectangle.
 func (r RectangleF) Size() PointF {
-	return PtF(r.Max.X-r.Min.X, r.Max.Y-r.Min.Y)
+	return PointF{r.Max.X - r.Min.X, r.Max.Y - r.Min.Y}
 }