OpenMesh
OBJReader.hh
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41 
42 
43 
44 
45 //=============================================================================
46 //
47 // Implements an reader module for OBJ files
48 //
49 //=============================================================================
50 
51 
52 #ifndef __OBJREADER_HH__
53 #define __OBJREADER_HH__
54 
55 
56 //=== INCLUDES ================================================================
57 
58 
59 #include <iosfwd>
60 #include <string>
61 #include <map>
62 
63 #include <OpenMesh/Core/System/config.h>
64 #include <OpenMesh/Core/Utils/SingletonT.hh>
65 #include <OpenMesh/Core/IO/importer/BaseImporter.hh>
66 #include <OpenMesh/Core/IO/reader/BaseReader.hh>
67 
68 
69 //== NAMESPACES ===============================================================
70 
71 
72 namespace OpenMesh {
73 namespace IO {
74 
75 
76 //== IMPLEMENTATION ===========================================================
77 
78 
82 class OPENMESHDLLEXPORT _OBJReader_ : public BaseReader
83 {
84 public:
85 
86  _OBJReader_();
87 
88  virtual ~_OBJReader_() { }
89 
90  std::string get_description() const override { return "Alias/Wavefront"; }
91  std::string get_extensions() const override { return "obj"; }
92 
93  bool read(const std::string& _filename,
94  BaseImporter& _bi,
95  Options& _opt) override;
96 
97  bool read(std::istream& _in,
98  BaseImporter& _bi,
99  Options& _opt) override;
100 
101 private:
102 
103 #ifndef DOXY_IGNORE_THIS
104  class Material
105  {
106  public:
107 
108  Material():Tr_(0),index_Kd_(0) { cleanup(); }
109 
110  void cleanup()
111  {
112  Kd_is_set_ = false;
113  Ka_is_set_ = false;
114  Ks_is_set_ = false;
115  Tr_is_set_ = false;
116  map_Kd_is_set_ = false;
117  }
118 
119  bool is_valid(void) const
120  { return Kd_is_set_ || Ka_is_set_ || Ks_is_set_ || Tr_is_set_ || map_Kd_is_set_; }
121 
122  bool has_Kd(void) { return Kd_is_set_; }
123  bool has_Ka(void) { return Ka_is_set_; }
124  bool has_Ks(void) { return Ks_is_set_; }
125  bool has_Tr(void) { return Tr_is_set_; }
126  bool has_map_Kd(void) { return map_Kd_is_set_; }
127 
128  void set_Kd( float r, float g, float b )
129  { Kd_=Vec3f(r,g,b); Kd_is_set_=true; }
130 
131  void set_Ka( float r, float g, float b )
132  { Ka_=Vec3f(r,g,b); Ka_is_set_=true; }
133 
134  void set_Ks( float r, float g, float b )
135  { Ks_=Vec3f(r,g,b); Ks_is_set_=true; }
136 
137  void set_Tr( float t )
138  { Tr_=t; Tr_is_set_=true; }
139 
140  void set_map_Kd( const std::string& _name, int _index_Kd )
141  { map_Kd_ = _name, index_Kd_ = _index_Kd; map_Kd_is_set_ = true; };
142 
143  const Vec3f& Kd( void ) const { return Kd_; }
144  const Vec3f& Ka( void ) const { return Ka_; }
145  const Vec3f& Ks( void ) const { return Ks_; }
146  float Tr( void ) const { return Tr_; }
147  const std::string& map_Kd( void ) { return map_Kd_ ; }
148  const int& map_Kd_index( void ) { return index_Kd_ ; }
149 
150  private:
151 
152  Vec3f Kd_; bool Kd_is_set_; // diffuse
153  Vec3f Ka_; bool Ka_is_set_; // ambient
154  Vec3f Ks_; bool Ks_is_set_; // specular
155  float Tr_; bool Tr_is_set_; // transperency
156 
157  std::string map_Kd_; int index_Kd_; bool map_Kd_is_set_; // Texture
158 
159  };
160 #endif
161 
162  typedef std::map<std::string, Material> MaterialList;
163 
164  MaterialList materials_;
165 
166  bool read_material( std::fstream& _in );
167 
168 
169 private:
170 
171  bool read_vertices(std::istream& _in, BaseImporter& _bi, Options& _opt,
172  std::vector<Vec3f> & normals,
173  std::vector<Vec3f> & colors,
174  std::vector<Vec3f> & texcoords3d,
175  std::vector<Vec2f> & texcoords,
176  std::vector<VertexHandle> & vertexHandles,
177  Options & fileOptions);
178 
179  std::string path_;
180 
181 };
182 
183 
184 //== TYPE DEFINITION ==========================================================
185 
186 
187 extern _OBJReader_ __OBJReaderInstance;
188 OPENMESHDLLEXPORT _OBJReader_& OBJReader();
189 
190 
191 //=============================================================================
192 } // namespace IO
193 } // namespace OpenMesh
194 //=============================================================================
195 #endif
196 //=============================================================================
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:59
VectorT< float, 3 > Vec3f
3-float vector
Definition: Vector11T.hh:850
Base class for importer modules.
Definition: BaseImporter.hh:84
Set options for reader/writer modules.
Definition: Options.hh:91
Base class for reader modules.
Definition: BaseReader.hh:87
Implementation of the OBJ format reader.
Definition: OBJReader.hh:83
std::string get_extensions() const override
Returns a string with the accepted file extensions separated by a whitespace and in small caps.
Definition: OBJReader.hh:91
std::string get_description() const override
Returns a brief description of the file type that can be parsed.
Definition: OBJReader.hh:90

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