frank
1c2081d406
adjusted grid factory adjusted nav mesh factory minoor changes/fixes new helper classes refactoring
54 lines
981 B
C++
54 lines
981 B
C++
#ifndef HISTOGRAM2_H
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#define HISTOGRAM2_H
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#include <vector>
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#include "../../geo/BBox2.h"
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namespace Stats {
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/** 2D histogram */
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template <typename Scalar> class Histogram2 {
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std::vector<Scalar> vec;
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BBox2 bbox;
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int binsX;
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int binsY;
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public:
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/** ctor */
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Histogram2(BBox2 bbox, int binsX, int binsY) : bbox(bbox), binsX(binsX), binsY(binsY) {
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vec.resize(binsX*binsY);
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}
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Scalar get(Scalar x, Scalar y) const {
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const int idx = binIdx(x,y);
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return vec[idx];
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}
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void add(Scalar x, Scalar y, Scalar val) {
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const int idx = binIdx(x,y);
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vec[idx] += val;
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}
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int binIdx(const Scalar x, const Scalar y) {
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const int ix = binIdxX(x);
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const int iy = binIdxY(y);
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return ix + iy*binsX;
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}
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int binIdxX(const Scalar val) const {
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return (val - bbox.getMin().x) / (bbox.getSize().x) * binsX;
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}
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int binIdxY(const Scalar val) const {
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return (val - bbox.getMin().y) / (bbox.getSize().y) * binsY;
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}
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};
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}
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#endif // HISTOGRAM2_H
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