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src/ecoparasite/representation/ValeursXY.java

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+package ecoparasite.representation;
+
+import java.util.HashSet;
+import java.util.function.Function;
+
+public class ValeursXY {
+
+    private double x;
+    private double y;
+
+    public ValeursXY(double x, double y){
+        this.x = x;
+        this.y = y;
+    }
+
+    public double getX() {
+        return x;
+    }
+    public void setX(double x) {
+        this.x = x;
+    }
+    public double getY() {
+        return y;
+    }
+    public void setY(double y) {
+        this.y = y;
+    }
+
+    public static <T,V extends Number> HashSet<ValeursXY> convertToXY(HashSet<T> list, Function<T,V> getX, Function<T,V> getY){
+        HashSet<ValeursXY> xy = new HashSet<ValeursXY>();
+        for(T item : list){
+            if(getX.apply(item) != null && getY.apply(item) != null){
+                xy.add( new ValeursXY(getX.apply(item).doubleValue(), getY.apply(item).doubleValue()));
+            }
+        }
+        return xy;
+    }
+
+}