new geo functions

changed the walkers
added moving average
fixed the interpolator
new test-cases

tests/math/TestInterpolator.cpp

@@ -0,0 +1,40 @@
+#ifdef WITH_TESTS
+
+#include "../Tests.h"
+#include "../../math/Interpolator.h"
+
+TEST(Interpolator, addAndGet) {
+
+	Interpolator<int, float> interp;
+	interp.add(10, 20);
+	interp.add(20, 30);
+	interp.add(30, 50);
+
+	ASSERT_EQ(20, std::round(interp.get(0)));		// before
+	ASSERT_EQ(20, std::round(interp.get(10)));		// matches
+
+	ASSERT_EQ(21, std::round(interp.get(11)));
+	ASSERT_EQ(25, std::round(interp.get(15)));
+	ASSERT_EQ(29, std::round(interp.get(19)));
+
+	ASSERT_EQ(30, std::round(interp.get(20)));		//matches
+
+	ASSERT_EQ(40, std::round(interp.get(25)));
+	ASSERT_EQ(42, std::round(interp.get(26)));
+
+	ASSERT_EQ(50, std::round(interp.get(30)));		// matches
+	ASSERT_EQ(50, std::round(interp.get(99)));		// after
+
+}
+
+TEST(Interpolator, sanity) {
+
+	Interpolator<int, int> interp;
+	interp.add(10, 20);
+	ASSERT_THROW( interp.add(10,30), std::exception );
+	interp.add(12, 22);
+	ASSERT_THROW( interp.add(11,21), std::exception );
+
+}
+
+#endif