From b4f8efaec20632bd7e645db8b8ef3eca7ad48205 Mon Sep 17 00:00:00 2001
From: hneemann <helmut.neemann@arcor.de>
Date: Sun, 15 Apr 2018 10:08:16 +0200
Subject: [PATCH] added some helper methods to VectorFloat

---
 .../digital/draw/graphics/Polygon.java        |  2 +-
 .../digital/draw/graphics/VectorFloat.java    | 30 +++++++++++++++++++
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/src/main/java/de/neemann/digital/draw/graphics/Polygon.java b/src/main/java/de/neemann/digital/draw/graphics/Polygon.java
index 46bf0fd25..c069406a5 100644
--- a/src/main/java/de/neemann/digital/draw/graphics/Polygon.java
+++ b/src/main/java/de/neemann/digital/draw/graphics/Polygon.java
@@ -84,7 +84,7 @@ public class Polygon implements Iterable<VectorInterface> {
      * @param p  the end point to add
      * @return this for chained calls
      */
-    public Polygon add(Vector c1, Vector c2, Vector p) {
+    public Polygon add(VectorInterface c1, VectorInterface c2, VectorInterface p) {
         isBezierStart.add(points.size());
         points.add(c1);
         points.add(c2);
diff --git a/src/main/java/de/neemann/digital/draw/graphics/VectorFloat.java b/src/main/java/de/neemann/digital/draw/graphics/VectorFloat.java
index 9a71bdf8d..a45092fda 100644
--- a/src/main/java/de/neemann/digital/draw/graphics/VectorFloat.java
+++ b/src/main/java/de/neemann/digital/draw/graphics/VectorFloat.java
@@ -51,6 +51,16 @@ public class VectorFloat implements VectorInterface {
         return tr.transform(this);
     }
 
+    /**
+     * Creates a new vector which has the value this+a
+     *
+     * @param a a
+     * @return this+a
+     */
+    public VectorFloat add(VectorInterface a) {
+        return new VectorFloat(x + a.getXFloat(), y + a.getYFloat());
+    }
+
     /**
      * Subtracts the given vector
      *
@@ -61,6 +71,26 @@ public class VectorFloat implements VectorInterface {
         return new VectorFloat(x - sub.getXFloat(), y - sub.getYFloat());
     }
 
+    /**
+     * Creates a new vector which has the value this*a
+     *
+     * @param a a
+     * @return this*a
+     */
+    public VectorFloat mul(int a) {
+        return new VectorFloat(x * a, y * a);
+    }
+
+    /**
+     * Creates a new vector which has the value this/d
+     *
+     * @param d a
+     * @return this/d
+     */
+    public VectorFloat div(int d) {
+        return new VectorFloat(x / d, y / d);
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;