diff options
Diffstat (limited to 'src/ipa/raspberrypi/controller/pwl.hpp')
| -rw-r--r-- | src/ipa/raspberrypi/controller/pwl.hpp | 48 |
1 files changed, 25 insertions, 23 deletions
diff --git a/src/ipa/raspberrypi/controller/pwl.hpp b/src/ipa/raspberrypi/controller/pwl.hpp index 484672f6..4a38d1df 100644 --- a/src/ipa/raspberrypi/controller/pwl.hpp +++ b/src/ipa/raspberrypi/controller/pwl.hpp @@ -17,24 +17,26 @@ class Pwl { public: struct Interval { - Interval(double _start, double _end) : start(_start), end(_end) + Interval(double _start, double _end) + : start(_start), end(_end) { } double start, end; - bool Contains(double value) + bool contains(double value) { return value >= start && value <= end; } - double Clip(double value) + double clip(double value) { return value < start ? start : (value > end ? end : value); } - double Len() const { return end - start; } + double len() const { return end - start; } }; struct Point { Point() : x(0), y(0) {} - Point(double _x, double _y) : x(_x), y(_y) {} + Point(double _x, double _y) + : x(_x), y(_y) {} double x, y; Point operator-(Point const &p) const { @@ -50,23 +52,23 @@ public: } Point operator*(double f) const { return Point(x * f, y * f); } Point operator/(double f) const { return Point(x / f, y / f); } - double Len2() const { return x * x + y * y; } - double Len() const { return sqrt(Len2()); } + double len2() const { return x * x + y * y; } + double len() const { return sqrt(len2()); } }; Pwl() {} Pwl(std::vector<Point> const &points) : points_(points) {} - void Read(boost::property_tree::ptree const ¶ms); - void Append(double x, double y, const double eps = 1e-6); - void Prepend(double x, double y, const double eps = 1e-6); - Interval Domain() const; - Interval Range() const; - bool Empty() const; + void read(boost::property_tree::ptree const ¶ms); + void append(double x, double y, const double eps = 1e-6); + void prepend(double x, double y, const double eps = 1e-6); + Interval domain() const; + Interval range() const; + bool empty() const; // Evaluate Pwl, optionally supplying an initial guess for the // "span". The "span" may be optionally be updated. If you want to know // the "span" value but don't have an initial guess you can set it to // -1. - double Eval(double x, int *span_ptr = nullptr, - bool update_span = true) const; + double eval(double x, int *spanPtr = nullptr, + bool updateSpan = true) const; // Find perpendicular closest to xy, starting from span+1 so you can // call it repeatedly to check for multiple closest points (set span to // -1 on the first call). Also returns "pseudo" perpendiculars; see @@ -78,31 +80,31 @@ public: Vertex, // vertex of Pwl is closest point Perpendicular // true perpendicular found }; - PerpType Invert(Point const &xy, Point &perp, int &span, + PerpType invert(Point const &xy, Point &perp, int &span, const double eps = 1e-6) const; // Compute the inverse function. Indicate if it is a proper (true) // inverse, or only a best effort (e.g. input was non-monotonic). - Pwl Inverse(bool *true_inverse = nullptr, const double eps = 1e-6) const; + Pwl inverse(bool *trueInverse = nullptr, const double eps = 1e-6) const; // Compose two Pwls together, doing "this" first and "other" after. - Pwl Compose(Pwl const &other, const double eps = 1e-6) const; + Pwl compose(Pwl const &other, const double eps = 1e-6) const; // Apply function to (x,y) values at every control point. - void Map(std::function<void(double x, double y)> f) const; + void map(std::function<void(double x, double y)> f) const; // Apply function to (x, y0, y1) values wherever either Pwl has a // control point. - static void Map2(Pwl const &pwl0, Pwl const &pwl1, + static void map2(Pwl const &pwl0, Pwl const &pwl1, std::function<void(double x, double y0, double y1)> f); // Combine two Pwls, meaning we create a new Pwl where the y values are // given by running f wherever either has a knot. static Pwl - Combine(Pwl const &pwl0, Pwl const &pwl1, + combine(Pwl const &pwl0, Pwl const &pwl1, std::function<double(double x, double y0, double y1)> f, const double eps = 1e-6); // Make "this" match (at least) the given domain. Any extension my be // clipped or linear. - void MatchDomain(Interval const &domain, bool clip = true, + void matchDomain(Interval const &domain, bool clip = true, const double eps = 1e-6); Pwl &operator*=(double d); - void Debug(FILE *fp = stdout) const; + void debug(FILE *fp = stdout) const; private: int findSpan(double x, int span) const; |