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User's Choice Windows CD
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User's Choice Windows CD (CMS Software)(1993).iso
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iv26_w30.zip
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INTERVIE
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GRAPHIC
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GEOMOBJS.H
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C/C++ Source or Header
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1991-12-10
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5KB
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165 lines
/*
* Copyright (c) 1987, 1988, 1989 Stanford University
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Stanford not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. Stanford makes no representations about
* the suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* STANFORD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
* IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* Interface to geometrical objects used to implement Graphic primitives.
*/
#ifndef geomobjs_h
#define geomobjs_h
#include <InterViews/Graphic/persistent.h>
class PointObj : public Persistent {
public:
PointObj(Coord = 0, Coord = 0);
PointObj(PointObj*);
float Distance(PointObj&);
virtual ClassId GetClassId();
virtual boolean IsA(ClassId);
protected:
virtual boolean read(PFile*);
virtual boolean write(PFile*);
public:
Coord x, y;
};
class LineObj : public Persistent {
public:
LineObj();
LineObj(Coord, Coord, Coord, Coord);
LineObj(LineObj*);
boolean Contains(PointObj&);
int Same(PointObj& p1, PointObj& p2);
boolean Intersects(LineObj&);
virtual ClassId GetClassId();
virtual boolean IsA(ClassId);
protected:
virtual boolean read(PFile*);
virtual boolean write(PFile*);
public:
PointObj p1, p2;
};
class BoxObj : public Persistent {
public:
BoxObj(Coord = 0, Coord = 0, Coord = 0, Coord = 0);
BoxObj(BoxObj*);
boolean Contains(PointObj&);
boolean Intersects(BoxObj&);
boolean Intersects(LineObj&);
BoxObj operator-(BoxObj&);
BoxObj operator+(BoxObj&);
boolean Within(BoxObj&);
virtual ClassId GetClassId();
virtual boolean IsA(ClassId);
protected:
virtual boolean read(PFile*);
virtual boolean write(PFile*);
public:
Coord left, right;
Coord bottom, top;
};
class MultiLineObj : public Persistent {
public:
MultiLineObj(Coord* = nil, Coord* = nil, int = 0);
void GetBox(BoxObj& b);
boolean Contains(PointObj&);
boolean Intersects(LineObj&);
boolean Intersects(BoxObj&);
boolean Within(BoxObj&);
void SplineToMultiLine(Coord* cpx, Coord* cpy, int cpcount);
void ClosedSplineToPolygon(Coord* cpx, Coord* cpy, int cpcount);
virtual ClassId GetClassId();
virtual boolean IsA(ClassId);
protected:
void GrowBuf();
boolean CanApproxWithLine(
double x0, double y0, double x2, double y2, double x3, double y3
);
void AddLine(double x0, double y0, double x1, double y1);
void AddBezierArc(
double x0, double y0, double x1, double y1,
double x2, double y2, double x3, double y3
);
void CalcSection(
Coord cminus1x, Coord cminus1y, Coord cx, Coord cy,
Coord cplus1x, Coord cplus1y, Coord cplus2x, Coord cplus2y
);
void CreateMultiLine(Coord* cpx, Coord* cpy, int cpcount);
virtual boolean read(PFile*);
virtual boolean write(PFile*);
public:
Coord* x, *y;
int count;
};
class FillPolygonObj : public MultiLineObj {
public:
FillPolygonObj(Coord* = nil, Coord* = nil, int = 0);
~FillPolygonObj();
boolean Contains(PointObj&);
boolean Intersects(LineObj&);
boolean Intersects(BoxObj&);
virtual ClassId GetClassId();
virtual boolean IsA(ClassId);
protected:
int LowestLeft(Coord*, Coord*, int);
void Normalize();
protected:
Coord* normx, *normy;
int normCount;
};
class Extent {
public:
Extent(float = 0, float = 0, float = 0, float = 0, float = 0);
Extent(Extent&);
boolean Undefined();
boolean Within(Extent& e);
void Merge(Extent&);
public:
/* defines lower left and center of an object */
float left, bottom, cx, cy, tol;
};
/*
* inlines
*/
inline boolean Extent::Undefined () { return left == cx && bottom == cy; }
#endif