Shamusworld >> Repos - architektonas/blob - src/base/infoarea.h

   1 #ifndef __INFOAREA_H__
   2 #define __INFOAREA_H__
   3
   4 #include <QtCore>
   5 #include "vector.h"
   6
   7 /**
   8  * Class for getting information about an area.
   9  *
  10  * @author Andrew Mustun
  11  */
  12 class RS_InfoArea
  13 {
  14         public:
  15                 RS_InfoArea();
  16                 ~RS_InfoArea();
  17
  18                 void reset();
  19                 void addPoint(const Vector & p);
  20                 void calculate();
  21                 void close();
  22                 bool isValid();
  23                 bool isClosed();
  24                 double getArea();
  25                 double getCircumference();
  26                 int count();
  27
  28         private:
  29                 double calcSubArea(const Vector & p1, const Vector & p2);
  30                 QVector<Vector> thePoints;
  31                 double baseY;
  32                 double area;
  33                 double circumference;
  34 };
  35
  36 #endif