source: src/Shapes/Shape_impl.hpp@ 0c74aa

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Last change on this file since 0c74aa was f06cbb, checked in by Frederik Heber <heber@…>, 12 years ago

AndShape and OrShape now use Cacheable to store center and radius once calculated.

  • otherwise we might have to traverse a huge tree all the time when actually the shape cannot change and hence a once determined center is always true.
  • getRadius() and getCenter() functionality moved into private functions calculate...().
  • Property mode set to 100644
File size: 6.6 KB
RevLine 
[997784]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
[56f73b]11// include config.h
12#ifdef HAVE_CONFIG_H
13#include <config.h>
14#endif
15
16
[6acc2f3]17#include <limits>
[c5186e]18#include <vector>
19
[5a8d61]20#include "CodePatterns/Assert.hpp"
21
[997784]22#include "Shapes/Shape.hpp"
[b94634]23#include "Shapes/ShapeExceptions.hpp"
[b92e4a]24#include "Shapes/ShapeType.hpp"
[6c438f]25#include "LinearAlgebra/Line.hpp"
[7672551]26#include "LinearAlgebra/LinePoint.hpp"
[6c438f]27#include "LinearAlgebra/LineSegment.hpp"
28#include "LinearAlgebra/LineSegmentSet.hpp"
29#include "LinearAlgebra/Vector.hpp"
[c6f395]30
[f06cbb]31#include "CodePatterns/Cacheable.hpp"
32
[997784]33
34class Shape_impl {
35public:
[e09b70]36 Shape_impl(){};
37 virtual ~Shape_impl(){};
[735940]38 virtual bool isInside(const Vector &point) const=0;
39 virtual bool isOnSurface(const Vector &point) const=0;
40 virtual Vector getNormal(const Vector &point) const throw(NotOnSurfaceException)=0;
[6acc2f3]41 virtual Vector getCenter() const=0;
42 virtual double getRadius() const=0;
[c67c65]43 virtual double getVolume() const=0;
44 virtual double getSurfaceArea() const=0;
[735940]45 virtual LineSegmentSet getLineIntersections(const Line&) const=0;
[b92e4a]46 virtual std::string toString() const =0;
47 virtual enum ShapeType getType() const =0;
[9c1c89]48 virtual std::vector<Vector> getHomogeneousPointsOnSurface(const size_t N) const=0;
[5a8d61]49 virtual std::vector<Vector> getHomogeneousPointsInVolume(const size_t N) const=0;
[997784]50};
51
52class Everywhere_impl : public Shape_impl {
53public:
[735940]54 virtual bool isInside(const Vector &point) const{
[997784]55 return true;
56 }
[735940]57 virtual bool isOnSurface(const Vector &point) const{
[5de9da]58 return false;
59 }
[735940]60 virtual Vector getNormal(const Vector &point) const throw(NotOnSurfaceException){
[b94634]61 throw NotOnSurfaceException() << ShapeVector(&point);
[5de9da]62 }
[6acc2f3]63 virtual Vector getCenter() const {
64 return Vector(0.,0.,0.);
65 }
66 virtual double getRadius() const {
67 return std::numeric_limits<double>::infinity();
68 }
[c67c65]69 virtual double getVolume() const
70 {
71 // TODO
72 return 0.;
73 }
74 virtual double getSurfaceArea() const
75 {
76 // TODO
77 return 0.;
78 }
[735940]79 virtual LineSegmentSet getLineIntersections(const Line &line) const{
[c6f395]80 LineSegmentSet res(line);
81 res.insert(LineSegment(line.negEndpoint(),line.posEndpoint()));
82 return res;
83 }
[b92e4a]84 virtual std::string toString() const{
[cfda65]85 return "Everywhere()";
86 }
[b92e4a]87 virtual enum ShapeType getType() const {
88 return EverywhereType;
89 }
[9c1c89]90 virtual std::vector<Vector> getHomogeneousPointsOnSurface(const size_t N) const {
[c5186e]91 std::vector<Vector> PointsOnSurface;
92 return PointsOnSurface;
93 }
[5a8d61]94 std::vector<Vector> getHomogeneousPointsInVolume(const size_t N) const {
95 ASSERT(0,
96 "Everywhere_impl::getHomogeneousPointsInVolume() - not implemented.");
97 return std::vector<Vector>();
98 }
[997784]99};
100
101class Nowhere_impl : public Shape_impl {
[735940]102 virtual bool isInside(const Vector &point) const{
[997784]103 return false;
104 }
[735940]105 virtual bool isOnSurface(const Vector &point) const{
[5de9da]106 return false;
107 }
[735940]108 virtual Vector getNormal(const Vector &point) const throw(NotOnSurfaceException){
[b94634]109 throw NotOnSurfaceException() << ShapeVector(&point);
[5de9da]110 }
[6acc2f3]111 virtual Vector getCenter() const {
112 return Vector(0.,0.,0.);
113 }
114 virtual double getRadius() const {
115 return 0.;
116 }
[c67c65]117 virtual double getVolume() const
118 {
119 return 0.;
120 }
121 virtual double getSurfaceArea() const
122 {
123 return 0.;
124 }
[735940]125 virtual LineSegmentSet getLineIntersections(const Line &line) const{
[c6f395]126 return LineSegmentSet(line);
127 }
[b92e4a]128 virtual std::string toString() const{
[cfda65]129 return "Nowhere()";
130 }
[b92e4a]131 virtual enum ShapeType getType() const {
132 return NowhereType;
133 }
[9c1c89]134 virtual std::vector<Vector> getHomogeneousPointsOnSurface(const size_t N) const {
[c5186e]135 std::vector<Vector> PointsOnSurface;
136 return PointsOnSurface;
137 }
[5a8d61]138 std::vector<Vector> getHomogeneousPointsInVolume(const size_t N) const {
139 return std::vector<Vector>();
140 }
[997784]141};
142
143class AndShape_impl : public Shape_impl {
144public:
145 AndShape_impl(const Shape::impl_ptr&, const Shape::impl_ptr&);
146 virtual ~AndShape_impl();
[735940]147 virtual bool isInside(const Vector &point) const;
148 virtual bool isOnSurface(const Vector &point) const;
149 virtual Vector getNormal(const Vector &point) const throw(NotOnSurfaceException);
[f06cbb]150 virtual Vector getCenter() const
151 { return *center; }
152 virtual double getRadius() const
153 { return *radius; }
[c67c65]154 virtual double getVolume() const;
155 virtual double getSurfaceArea() const;
[735940]156 virtual LineSegmentSet getLineIntersections(const Line&) const;
[b92e4a]157 virtual std::string toString() const;
158 virtual enum ShapeType getType() const;
[9c1c89]159 virtual std::vector<Vector> getHomogeneousPointsOnSurface(const size_t N) const;
[5a8d61]160 virtual std::vector<Vector> getHomogeneousPointsInVolume(const size_t N) const;
[997784]161private:
[f06cbb]162 double calculateRadius() const;
163 Vector calculateCenter() const;
164
[997784]165 Shape::impl_ptr lhs;
166 Shape::impl_ptr rhs;
[f06cbb]167 Cacheable<double> radius;
168 Cacheable<Vector> center;
[997784]169};
170
171class OrShape_impl : public Shape_impl {
172public:
173 OrShape_impl(const Shape::impl_ptr&, const Shape::impl_ptr&);
174 virtual ~OrShape_impl();
[735940]175 virtual bool isInside(const Vector &point) const;
176 virtual bool isOnSurface(const Vector &point) const;
177 virtual Vector getNormal(const Vector &point) const throw(NotOnSurfaceException);
[f06cbb]178 virtual Vector getCenter() const
179 { return *center; }
180 virtual double getRadius() const
181 { return *radius; }
[c67c65]182 virtual double getVolume() const;
183 virtual double getSurfaceArea() const;
[735940]184 virtual LineSegmentSet getLineIntersections(const Line&) const;
[b92e4a]185 virtual std::string toString() const;
186 virtual enum ShapeType getType() const;
[9c1c89]187 virtual std::vector<Vector> getHomogeneousPointsOnSurface(const size_t N) const;
[5a8d61]188 virtual std::vector<Vector> getHomogeneousPointsInVolume(const size_t N) const;
[997784]189private:
[f06cbb]190 double calculateRadius() const;
191 Vector calculateCenter() const;
192
[997784]193 Shape::impl_ptr lhs;
194 Shape::impl_ptr rhs;
[f06cbb]195 Cacheable<double> radius;
196 Cacheable<Vector> center;
[997784]197};
198
199class NotShape_impl : public Shape_impl {
200public:
201 NotShape_impl(const Shape::impl_ptr&);
202 virtual ~NotShape_impl();
[735940]203 virtual bool isInside(const Vector &point) const;
204 virtual bool isOnSurface(const Vector &point) const;
205 virtual Vector getNormal(const Vector &point) const throw(NotOnSurfaceException);
[6acc2f3]206 virtual Vector getCenter() const;
207 virtual double getRadius() const;
[c67c65]208 virtual double getVolume() const;
209 virtual double getSurfaceArea() const;
[735940]210 virtual LineSegmentSet getLineIntersections(const Line&) const;
[b92e4a]211 virtual std::string toString() const;
212 virtual enum ShapeType getType() const;
[9c1c89]213 virtual std::vector<Vector> getHomogeneousPointsOnSurface(const size_t N) const;
[5a8d61]214 virtual std::vector<Vector> getHomogeneousPointsInVolume(const size_t N) const;
[997784]215private:
216 Shape::impl_ptr arg;
217};
218
[e09b70]219Shape::impl_ptr getShapeImpl(const Shape&);
220
[997784]221#endif /* SHAPE_IMPL_HPP_ */
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