--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/math/LinearFilterFunction.java	Thu Apr 25 15:23:37 2013 +0200
@@ -0,0 +1,24 @@
+package org.dive4elements.river.artifacts.math;
+
+public class LinearFilterFunction
+extends      FilterFunction
+{
+    protected double m;
+    protected double b;
+
+    public LinearFilterFunction(double m, double b) {
+        this(Identity.IDENTITY, m, b);
+    }
+
+    public LinearFilterFunction(Function parent, double m, double b) {
+        super(parent);
+        this.m = m;
+        this.b = b;
+    }
+
+    @Override
+    public double value(double x) {
+        return super.value(x)*m + b;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :