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75 lines
1.6 KiB
C++
75 lines
1.6 KiB
C++
/**
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* @file util.h
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*
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* @auhtor Remus Claudiu Dumitru <r.dumitru@jacobs-university.de>
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* @date 13 Feb 2012
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*
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*/
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#ifndef UTIL_H_
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#define UTIL_H_
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//==============================================================================
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// Includes
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//==============================================================================
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#include "model/vector3d.h"
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#include <stdlib.h>
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#include <vector>
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namespace model {
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/**
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* Checks if a point is one one side of an edge.
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*/
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bool sameSide(const model::Point3d& p1, const model::Point3d& p2, const model::Point3d& a, const model::Point3d& b);
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/**
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* Checks if this point lies inside a certain convex hull.
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*/
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bool insideHull(const model::Point3d& pt, const std::vector<model::Point3d>& hull);
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/**
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* Computes the convex hull of 3D points, disregarding their height.
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*/
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std::vector<model::Point3d> getHorizontalConvexHull(std::vector<model::Point3d> points);
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/**
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* Checks if a file exists.
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* @param fileName the name of the file to check for existance
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*/
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bool fileExists(const std::string& fileName);
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/**
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* @return true if given file is a directory
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*/
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bool fileIsDir(const std::string& fileName);
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/**
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* Creates a directory at the given path.
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*/
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bool makeDir(const std::string& path);
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/**
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* definition of x^2
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*/
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template <class T>
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static inline T sqr(const T& x) {
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return x * x;
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}
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/**
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* generates a random RGB color
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*/
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static inline void randomColor(const int& maxVal,
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int& r, int& g, int& b)
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{
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r = rand() % maxVal;
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g = rand() % maxVal;
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b = rand() % maxVal;
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}
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} /* namespace model */
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#endif /* UTIL_H_ */
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