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1 : // EnergyPlus, Copyright (c) 1996-2023, The Board of Trustees of the University of Illinois,
2 : // The Regents of the University of California, through Lawrence Berkeley National Laboratory
3 : // (subject to receipt of any required approvals from the U.S. Dept. of Energy), Oak Ridge
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47 :
48 : #ifndef DXFEarClipping_hh_INCLUDED
49 : #define DXFEarClipping_hh_INCLUDED
50 :
51 : // EnergyPlus Headers
52 : #include <EnergyPlus/Data/BaseData.hh>
53 : #include <EnergyPlus/DataSurfaces.hh>
54 : #include <EnergyPlus/DataVectorTypes.hh>
55 : #include <EnergyPlus/EnergyPlus.hh>
56 :
57 : namespace EnergyPlus {
58 :
59 : // Forward declarations
60 : struct EnergyPlusData;
61 :
62 : namespace DXFEarClipping {
63 :
64 : // Using/Aliasing
65 : using DataVectorTypes::dTriangle;
66 : using DataVectorTypes::Vector;
67 : using DataVectorTypes::Vector_2d;
68 :
69 : // Data
70 :
71 : // Derived type definitions:
72 : // na
73 :
74 : // Module variable declarations:
75 : // na
76 : // Subroutine specifications for module <module_name>:
77 :
78 : // Functions
79 :
80 : bool InPolygon(Vector const &point, Array1D<Vector> &poly, int const nsides);
81 :
82 : Real64 Modulus(Vector const &point);
83 :
84 : int Triangulate(EnergyPlusData &state,
85 : int const nsides, // number of sides to polygon
86 : Array1D<Vector> &polygon,
87 : Array1D<dTriangle> &outtriangles,
88 : Real64 const surfazimuth, // surface azimuth angle (outward facing normal)
89 : Real64 const surftilt, // surface tilt angle
90 : std::string const &surfname, // surface name (for error messages)
91 : DataSurfaces::SurfaceClass surfclass // surface class
92 : );
93 :
94 : Real64 angle_2dvector(Real64 const xa, // vertex coordinate
95 : Real64 const ya, // vertex coordinate
96 : Real64 const xb, // vertex coordinate
97 : Real64 const yb, // vertex coordinate
98 : Real64 const xc, // vertex coordinate
99 : Real64 const yc // vertex coordinate
100 : );
101 :
102 : bool polygon_contains_point_2d(int const nsides, // number of sides (vertices)
103 : Array1D<Vector_2d> &polygon, // points of polygon
104 : Vector_2d const &point // point to be tested
105 : );
106 :
107 : void generate_ears(EnergyPlusData &state,
108 : int const nvert, // number of vertices in polygon
109 : Array1D<Vector_2d> &vertex,
110 : Array1D_int &ears, // number of ears possible (dimensioned to nvert)
111 : int &nears, // number of ears found
112 : Array1D_int &r_vertices, // number of reflex vertices (>180) possible
113 : int &nrverts, // number of reflex vertices found (>=180)
114 : Array1D_int &c_vertices, // number of convex vertices
115 : int &ncverts, // number of convex vertices found (< 180)
116 : Array1D_bool &removed, // array that shows if a vertex has been removed (calling routine)
117 : Array1D_int &earvert, // vertex indicators for first ear
118 : Array1D<Real64> &rangles);
119 :
120 : void CalcWallCoordinateTransformation(int const nsides,
121 : Array1D<Vector> &polygon,
122 : Real64 const surfazimuth,
123 : Real64 const surftilt, // unused1208
124 : Array1D<Real64> &xvt,
125 : Array1D<Real64> &yvt,
126 : Array1D<Real64> &zvt);
127 :
128 : void CalcRfFlrCoordinateTransformation(int const nsides,
129 : Array1D<Vector> &polygon,
130 : Real64 const surfazimuth, // unused1208
131 : Real64 const surftilt,
132 : Array1D<Real64> &xvt,
133 : Array1D<Real64> &yvt,
134 : Array1D<Real64> &zvt);
135 :
136 : void reorder(int &nvert); // unused1208
137 :
138 : } // namespace DXFEarClipping
139 :
140 771 : struct DXFEarClippingData : BaseGlobalStruct
141 : {
142 :
143 : bool trackit = false;
144 : int errcount = 0;
145 :
146 0 : void clear_state() override
147 : {
148 0 : this->trackit = false;
149 0 : this->errcount = 0;
150 0 : }
151 : };
152 :
153 : } // namespace EnergyPlus
154 :
155 : #endif
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