huge commit

- worked on about everything
- grid walker using plugable modules
- wifi models
- new distributions
- worked on geometric data-structures
- added typesafe timestamps
- worked on grid-building
- added sensor-classes
- added sensor analysis (step-detection, turn-detection)
- offline data reader
- many test-cases

math/distribution/Region.h

@@ -0,0 +1,51 @@
+#ifndef DIST_REGION_H
+#define DIST_REGION_H
+
+#include <cmath>
+#include <random>
+#include "../Random.h"
+#include "../../Assertions.h"
+#include "Normal.h"
+
+namespace Distribution {
+
+	/** normal distribution */
+	template <typename T> class Region {
+
+	private:
+
+		const T mu;
+		const T a;
+		const T h;
+		const T sigma;
+
+	public:
+
+		/** ctor */
+		Region(const T mu, const T a) : mu(mu), a(a), h(1.0/(2*2*a)), sigma(std::exp(0) / (2*h*std::sqrt(2*M_PI))) {
+
+		}
+
+		/** get probability for the given value */
+		T getProbability(const T val) const {
+			const T diff = std::abs(val - mu);
+			if (diff < a)	{return h;}
+			//if (diff < a+b)	{const float p = 1.0f-(diff-a)/b; return p*h;}
+			//return 0;
+			const T diff2 = ((val - mu) < 0) ? (val - mu + a) : (val - mu - a);
+			return Distribution::Normal<T>::getProbability(0, sigma, diff2) / 2;
+
+		}
+
+		/** get the probability for the given value */
+		static T getProbability(const T mu, const T a, const T val) {
+			Region<T> dist(mu, a);
+			return dist.getProbability(val);
+		}
+
+	};
+
+}
+
+
+#endif // DIST_REGION_H