source: src/Shapes/Shape_impl.hpp@ 2ad482

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Last change on this file since 2ad482 was c6f395, checked in by Tillmann Crueger <crueger@…>, 15 years ago

Added methods to calculate the intersections of Shapes with arbitrary lines
  • Property mode set to 100644
File size: 3.0 KB
Line 
1/*
2 * Shape_impl.hpp
3 *
4 * Created on: Jun 18, 2010
5 * Author: crueger
6 */
7
8#ifndef SHAPE_IMPL_HPP_
9#define SHAPE_IMPL_HPP_
10
11#include "Shapes/Shape.hpp"
12#include "vector.hpp"
13#include "Line.hpp"
14#include "LineSegment.hpp"
15#include "LineSegmentSet.hpp"
16
17
18class Shape_impl {
19public:
20 Shape_impl(){};
21 virtual ~Shape_impl(){};
22 virtual bool isInside(const Vector &point)=0;
23 virtual bool isOnSurface(const Vector &point)=0;
24 virtual Vector getNormal(const Vector &point) throw(NotOnSurfaceException)=0;
25 virtual LineSegmentSet getLineIntersections(const Line&)=0;
26 virtual std::string toString()=0;
27};
28
29class Everywhere_impl : public Shape_impl {
30public:
31 virtual bool isInside(const Vector &point){
32 return true;
33 }
34 virtual bool isOnSurface(const Vector &point){
35 return false;
36 }
37 virtual Vector getNormal(const Vector &point) throw(NotOnSurfaceException){
38 throw NotOnSurfaceException(__FILE__,__LINE__);
39 }
40 virtual LineSegmentSet getLineIntersections(const Line &line){
41 LineSegmentSet res(line);
42 res.insert(LineSegment(line.negEndpoint(),line.posEndpoint()));
43 return res;
44 }
45 virtual std::string toString(){
46 return "Everywhere()";
47 }
48};
49
50class Nowhere_impl : public Shape_impl {
51 virtual bool isInside(const Vector &point){
52 return false;
53 }
54 virtual bool isOnSurface(const Vector &point){
55 return false;
56 }
57 virtual Vector getNormal(const Vector &point) throw(NotOnSurfaceException){
58 throw NotOnSurfaceException(__FILE__,__LINE__);
59 }
60 virtual LineSegmentSet getLineIntersections(const Line &line){
61 return LineSegmentSet(line);
62 }
63 virtual std::string toString(){
64 return "Nowhere()";
65 }
66};
67
68class AndShape_impl : public Shape_impl {
69public:
70 AndShape_impl(const Shape::impl_ptr&, const Shape::impl_ptr&);
71 virtual ~AndShape_impl();
72 virtual bool isInside(const Vector &point);
73 virtual bool isOnSurface(const Vector &point);
74 virtual Vector getNormal(const Vector &point) throw(NotOnSurfaceException);
75 virtual LineSegmentSet getLineIntersections(const Line&);
76 virtual std::string toString();
77private:
78 Shape::impl_ptr lhs;
79 Shape::impl_ptr rhs;
80};
81
82class OrShape_impl : public Shape_impl {
83public:
84 OrShape_impl(const Shape::impl_ptr&, const Shape::impl_ptr&);
85 virtual ~OrShape_impl();
86 virtual bool isInside(const Vector &point);
87 virtual bool isOnSurface(const Vector &point);
88 virtual Vector getNormal(const Vector &point) throw(NotOnSurfaceException);
89 virtual LineSegmentSet getLineIntersections(const Line&);
90 virtual std::string toString();
91private:
92 Shape::impl_ptr lhs;
93 Shape::impl_ptr rhs;
94};
95
96class NotShape_impl : public Shape_impl {
97public:
98 NotShape_impl(const Shape::impl_ptr&);
99 virtual ~NotShape_impl();
100 virtual bool isInside(const Vector &point);
101 virtual bool isOnSurface(const Vector &point);
102 virtual Vector getNormal(const Vector &point) throw(NotOnSurfaceException);
103 virtual LineSegmentSet getLineIntersections(const Line&);
104 virtual std::string toString();
105private:
106 Shape::impl_ptr arg;
107};
108
109Shape::impl_ptr getShapeImpl(const Shape&);
110
111#endif /* SHAPE_IMPL_HPP_ */
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