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- #ifndef POINT_H
- #define POINT_H
-
- /*$Header: /afs/alw.nih.gov/unix/sun4_40c/usr/local/src/nihcl-3.0/share/lib/RCS/Point.h,v 3.0 90/05/20 00:20:47 kgorlen Rel $*/
-
- /* Point.h -- declarations for X-Y coordinates
-
- THIS SOFTWARE FITS THE DESCRIPTION IN THE U.S. COPYRIGHT ACT OF A
- "UNITED STATES GOVERNMENT WORK". IT WAS WRITTEN AS A PART OF THE
- AUTHOR'S OFFICIAL DUTIES AS A GOVERNMENT EMPLOYEE. THIS MEANS IT
- CANNOT BE COPYRIGHTED. THIS SOFTWARE IS FREELY AVAILABLE TO THE
- PUBLIC FOR USE WITHOUT A COPYRIGHT NOTICE, AND THERE ARE NO
- RESTRICTIONS ON ITS USE, NOW OR SUBSEQUENTLY.
-
- Author:
- K. E. Gorlen
- Computer Systems Laboratory, DCRT
- National Institutes of Health
- Bethesda, MD 20892
-
- $Log: Point.h,v $
- * Revision 3.0 90/05/20 00:20:47 kgorlen
- * Release for 1st edition.
- *
- */
-
- #include "Object.h"
- #include <math.h>
-
- class Point: public VIRTUAL Object {
- DECLARE_MEMBERS(Point);
- protected:
- short xc,yc; // x-y coordinate
- protected: // storer() functions for object I/O
- virtual void storer(OIOofd&) const;
- virtual void storer(OIOout&) const;
- public:
- Point() { xc = yc = 0; }
- Point(short newx, short newy) { xc=newx; yc=newy; }
- short x() const { return xc; }
- short x(short newx) { return xc = newx; }
- short y() const { return yc; }
- short y(short newy) { return yc = newy; }
- Point operator+(const Point& p) const { return Point(xc+p.xc, yc+p.yc); }
- Point operator-() const { return Point(-xc,-yc); }
- Point operator-(const Point& p) const { return Point(xc-p.xc, yc-p.yc); }
- friend Point operator*(const Point& p, int i) { return Point(i*p.xc, i*p.yc); }
- friend Point operator*(int i, const Point& p) { return Point(i*p.xc, i*p.yc); }
- int operator*(const Point& p) const { return xc*p.xc + yc*p.yc; }
- bool operator==(const Point& p) const { return (xc==p.xc && yc==p.yc); }
- bool operator!=(const Point& p) const { return (xc!=p.xc || yc!=p.yc); }
- bool operator<(const Point& p) const { return (yc<p.yc && xc<p.xc); }
- bool operator<=(const Point& p) const { return (yc<=p.yc && xc<=p.xc); }
- bool operator>(const Point& p) const { return (yc>p.yc && xc>p.xc); }
- bool operator>=(const Point& p) const { return (yc>=p.yc && xc>=p.xc); }
- void operator+=(const Point& p) { xc += p.xc; yc += p.yc; }
- void operator-=(const Point& p) { xc -= p.xc; yc -= p.yc; }
- void operator*=(int s) { xc *= s; yc *= s; }
- double dist(const Point& p) const { return hypot(xc-p.xc, yc-p.yc); }
- Point max(const Point&) const;
- Point min(const Point&) const;
- Point transpose() const { return Point(yc,xc); }
- bool isBelow(const Point& p) const { return yc > p.yc; }
- bool isAbove(const Point& p) const { return yc < p.yc; }
- bool isLeft(const Point& p) const { return xc < p.xc; }
- bool isRight(const Point& p) const { return xc > p.xc; }
- virtual int compare(const Object&) const; // compare Points
- virtual void deepenShallowCopy(); // {}
- virtual unsigned hash() const;
- virtual bool isEqual(const Object&) const; // equality test
- virtual void printOn(ostream& strm =cout) const;
- virtual const Class* species() const;
- };
-
- #endif
-