| 1 | /*
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| 2 |  * Shape_impl.hpp
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| 3 |  *
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| 4 |  *  Created on: Jun 18, 2010
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| 5 |  *      Author: crueger
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| 6 |  */
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| 7 | 
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| 8 | #ifndef SHAPE_IMPL_HPP_
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| 9 | #define SHAPE_IMPL_HPP_
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| 10 | 
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| 11 | // include config.h
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| 12 | #ifdef HAVE_CONFIG_H
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| 13 | #include <config.h>
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| 14 | #endif
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| 15 | 
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| 16 | 
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| 17 | #include <vector>
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| 18 | 
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| 19 | #include "Shapes/Shape.hpp"
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| 20 | #include "Shapes/ShapeExceptions.hpp"
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| 21 | #include "LinearAlgebra/Line.hpp"
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| 22 | #include "LinearAlgebra/LineSegment.hpp"
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| 23 | #include "LinearAlgebra/LineSegmentSet.hpp"
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| 24 | #include "LinearAlgebra/Vector.hpp"
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| 25 | 
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| 26 | 
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| 27 | class Shape_impl {
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| 28 | public:
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| 29 |   Shape_impl(){};
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| 30 |   virtual ~Shape_impl(){};
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| 31 |   virtual bool isInside(const Vector &point)=0;
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| 32 |   virtual bool isOnSurface(const Vector &point)=0;
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| 33 |   virtual Vector getNormal(const Vector &point) throw(NotOnSurfaceException)=0;
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| 34 |   virtual LineSegmentSet getLineIntersections(const Line&)=0;
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| 35 |   virtual std::string toString()=0;
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| 36 |   virtual std::vector<Vector> getHomogeneousPointsOnSurface(const size_t N) const=0;
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| 37 | };
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| 38 | 
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| 39 | class Everywhere_impl : public Shape_impl {
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| 40 | public:
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| 41 |   virtual bool isInside(const Vector &point){
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| 42 |     return true;
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| 43 |   }
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| 44 |   virtual bool isOnSurface(const Vector &point){
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| 45 |     return false;
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| 46 |   }
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| 47 |   virtual Vector getNormal(const Vector &point) throw(NotOnSurfaceException){
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| 48 |     throw NotOnSurfaceException() << ShapeVector(&point);
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| 49 |   }
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| 50 |   virtual LineSegmentSet getLineIntersections(const Line &line){
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| 51 |     LineSegmentSet res(line);
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| 52 |     res.insert(LineSegment(line.negEndpoint(),line.posEndpoint()));
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| 53 |     return res;
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| 54 |   }
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| 55 |   virtual std::string toString(){
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| 56 |     return "Everywhere()";
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| 57 |   }
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| 58 |   virtual std::vector<Vector> getHomogeneousPointsOnSurface(const size_t N) const {
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| 59 |     std::vector<Vector> PointsOnSurface;
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| 60 |     return PointsOnSurface;
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| 61 |   }
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| 62 | };
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| 63 | 
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| 64 | class Nowhere_impl : public Shape_impl {
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| 65 |   virtual bool isInside(const Vector &point){
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| 66 |     return false;
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| 67 |   }
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| 68 |   virtual bool isOnSurface(const Vector &point){
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| 69 |     return false;
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| 70 |   }
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| 71 |   virtual Vector getNormal(const Vector &point) throw(NotOnSurfaceException){
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| 72 |     throw NotOnSurfaceException() << ShapeVector(&point);
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| 73 |   }
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| 74 |   virtual LineSegmentSet getLineIntersections(const Line &line){
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| 75 |     return LineSegmentSet(line);
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| 76 |   }
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| 77 |   virtual std::string toString(){
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| 78 |     return "Nowhere()";
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| 79 |   }
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| 80 |   virtual std::vector<Vector> getHomogeneousPointsOnSurface(const size_t N) const {
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| 81 |     std::vector<Vector> PointsOnSurface;
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| 82 |     return PointsOnSurface;
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| 83 |   }
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| 84 | };
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| 85 | 
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| 86 | class AndShape_impl : public Shape_impl {
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| 87 | public:
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| 88 |   AndShape_impl(const Shape::impl_ptr&, const Shape::impl_ptr&);
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| 89 |   virtual ~AndShape_impl();
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| 90 |   virtual bool isInside(const Vector &point);
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| 91 |   virtual bool isOnSurface(const Vector &point);
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| 92 |   virtual Vector getNormal(const Vector &point) throw(NotOnSurfaceException);
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| 93 |   virtual LineSegmentSet getLineIntersections(const Line&);
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| 94 |   virtual std::string toString();
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| 95 |   virtual std::vector<Vector> getHomogeneousPointsOnSurface(const size_t N) const;
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| 96 | private:
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| 97 |   Shape::impl_ptr lhs;
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| 98 |   Shape::impl_ptr rhs;
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| 99 | };
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| 100 | 
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| 101 | class OrShape_impl : public Shape_impl {
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| 102 | public:
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| 103 |   OrShape_impl(const Shape::impl_ptr&, const Shape::impl_ptr&);
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| 104 |   virtual ~OrShape_impl();
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| 105 |   virtual bool isInside(const Vector &point);
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| 106 |   virtual bool isOnSurface(const Vector &point);
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| 107 |   virtual Vector getNormal(const Vector &point) throw(NotOnSurfaceException);
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| 108 |   virtual LineSegmentSet getLineIntersections(const Line&);
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| 109 |   virtual std::string toString();
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| 110 |   virtual std::vector<Vector> getHomogeneousPointsOnSurface(const size_t N) const;
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| 111 | private:
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| 112 |   Shape::impl_ptr lhs;
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| 113 |   Shape::impl_ptr rhs;
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| 114 | };
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| 115 | 
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| 116 | class NotShape_impl : public Shape_impl {
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| 117 | public:
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| 118 |   NotShape_impl(const Shape::impl_ptr&);
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| 119 |   virtual ~NotShape_impl();
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| 120 |   virtual bool isInside(const Vector &point);
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| 121 |   virtual bool isOnSurface(const Vector &point);
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| 122 |   virtual Vector getNormal(const Vector &point) throw(NotOnSurfaceException);
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| 123 |   virtual LineSegmentSet getLineIntersections(const Line&);
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| 124 |   virtual std::string toString();
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| 125 |   virtual std::vector<Vector> getHomogeneousPointsOnSurface(const size_t N) const;
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| 126 | private:
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| 127 |   Shape::impl_ptr arg;
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| 128 | };
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| 129 | 
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| 130 | Shape::impl_ptr getShapeImpl(const Shape&);
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| 131 | 
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| 132 | #endif /* SHAPE_IMPL_HPP_ */
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