3dpcp/.svn/pristine/d0/d0fc96e72b76dc7b1fb24b149408d9ee12187348.svn-base
2012-09-16 14:33:11 +02:00

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