Developer Documentation

OBJNode.hh
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40 \*===========================================================================*/
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44
45
46 //=============================================================================
47 //
48 // CLASS FastMesh
49 //
50 //=============================================================================
51
52
53 #ifndef ACG_OBJ_NODE_HH
54 #define ACG_OBJ_NODE_HH
55
56
57 //== INCLUDES =================================================================
58
59 #include "BaseNode.hh"
60 #include "DrawModes.hh"
61 #include "../Math/VectorT.hh"
62 #include <string>
63 #include <vector>
64
65
66 //== FORWARD DECLARATION ======================================================
67
68
69 //== NAMESPACES ===============================================================
70
71
72 namespace ACG {
73 namespace SceneGraph {
74
75
76 //== CLASS DEFINITION =========================================================
77
78
79 class ACGDLLEXPORT OBJNode : public BaseNode
80 {
81
82 public:
83
85 OBJNode( BaseNode* _parent=0,
86 const std::string& _name="<OBJNode>" )
87 : BaseNode(_parent, _name)
88 {}
89
90
92 virtual ~OBJNode() {}
93
94
95 ACG_CLASSNAME(OBJNode);
96
97
99 DrawModes::DrawMode availableDrawModes() const;
100
102 void boundingBox(Vec3d& _bbMin, Vec3d& _bbMax);
103
105 void draw(GLState& _state, const DrawModes::DrawMode& _drawMode);
106
108 void pick(GLState& _state, PickTarget _target);
109
110
111 struct Face
112 {
113 Face(int _i0=-1, int _i1=-1, int _i2=-1,
114 int _t0=-1, int _t1=-1, int _t2=-1)
115 : i0(_i0), i1(_i1), i2(_i2),
116 t0(_t0), t1(_t1), t2(_t2) {}
117 int i0, i1, i2, t0, t1, t2;
118 };
119
120
122 size_t n_vertices() const { return vertices_.size(); }
124 size_t n_faces() const { return faces_.size(); }
126 size_t n_normals() const { return normals_.size(); }
128 size_t n_texcoords() const { return texCoords_.size(); }
129
130
132 void clear()
133 {
134 vertices_.clear();
135 faces_.clear();
136 normals_.clear();
137 texCoords_.clear();
138 }
139
140
142 size_t add_vertex(const Vec3f& _v)
143 {
144 vertices_.push_back(_v);
145 return vertices_.size()-1;
146 }
147
148
150 size_t add_face(const Face& _f)
151 {
152 faces_.push_back(_f);
153 return faces_.size()-1;
154 }
155
157 size_t add_face(unsigned int _i0,
158 unsigned int _i1,
159 unsigned int _i2)
160 {
161 faces_.push_back(Face(_i0, _i1, _i2));
162 return faces_.size()-1;
163 }
164
165
167 Vec3f& vertex(unsigned int _i)
168 {
169 assert(_i < n_vertices());
170 return vertices_[_i];
171 }
173 const Vec3f& vertex(unsigned int _i) const
174 {
175 assert(_i < n_vertices());
176 return vertices_[_i];
177 }
178
179
181 const Face& face(unsigned int _i) const
182 {
183 assert(_i < n_faces());
184 return faces_[_i];
185 }
187 Face& face(unsigned int _i)
188 {
189 assert(_i < n_faces());
190 return faces_[_i];
191 }
192
193
195 const Vec3f& normal(unsigned int _i) const
196 {
197 assert(_i < n_normals());
198 return normals_[_i];
199 }
201 Vec3f& normal(unsigned int _i)
202 {
203 assert(_i < n_normals());
204 return normals_[_i];
205 }
206
207
209 bool read(const std::string& _filename);
210
211
213 void update_face_normals();
214
215
216 private:
217
218 void draw_obj() const;
219 void draw_obj_tex() const;
220
221 std::vector<Vec3f> vertices_;
222 std::vector<Vec3f> normals_;
223 std::vector<Vec2f> texCoords_;
224 std::vector<Face> faces_;
225 };
226
227
228 //=============================================================================
229 } // namespace SceneGraph
230 } // namespace ACG
231 //=============================================================================
232 #endif // ACG_OBJ_NODE_HH
233 //=============================================================================
ACG::SceneGraph::OBJNode::vertex
Vec3f & vertex(unsigned int _i)
get i&#39;th vertex
Definition: OBJNode.hh:167
ACG
Namespace providing different geometric functions concerning angles.
Definition: BaseObjectData.hh:68
ACG::SceneGraph::OBJNode::n_faces
size_t n_faces() const
number of faces
Definition: OBJNode.hh:124
ACG::SceneGraph::OBJNode::normal
const Vec3f & normal(unsigned int _i) const
get i&#39;th normal
Definition: OBJNode.hh:195
ACG::SceneGraph::OBJNode::face
Face & face(unsigned int _i)
get i&#39;th face
Definition: OBJNode.hh:187
ACG::GLState
Definition: GLState.hh:213
ACG::SceneGraph::OBJNode::n_normals
size_t n_normals() const
number of normals
Definition: OBJNode.hh:126
ACG::SceneGraph::OBJNode::~OBJNode
virtual ~OBJNode()
destructor
Definition: OBJNode.hh:92
ACG::SceneGraph::OBJNode::normal
Vec3f & normal(unsigned int _i)
get i&#39;th normal
Definition: OBJNode.hh:201
ACG::SceneGraph::OBJNode::Face
Definition: OBJNode.hh:111
ACG::SceneGraph::OBJNode::add_face
size_t add_face(unsigned int _i0, unsigned int _i1, unsigned int _i2)
add triangle
Definition: OBJNode.hh:157
ACG::SceneGraph::DrawModes::DrawMode
Specifies a DrawMode.
Definition: DrawModes.hh:288
ACG::SceneGraph::OBJNode::face
const Face & face(unsigned int _i) const
get i&#39;th face
Definition: OBJNode.hh:181
ACG::SceneGraph::OBJNode
Definition: OBJNode.hh:79
ACG::SceneGraph::OBJNode::n_vertices
size_t n_vertices() const
number of vertices
Definition: OBJNode.hh:122
SceneGraph
Definition: QtPrincipalAxisDialog.hh:67
ACG::SceneGraph::OBJNode::clear
void clear()
clear the node
Definition: OBJNode.hh:132
ACG::SceneGraph::PickTarget
PickTarget
What target to use for picking.
Definition: PickTarget.hh:73
ACG::SceneGraph::BaseNode
Definition: BaseNode.hh:104
OpenMesh::VectorT
Definition: Vector11T.hh:83
ACG::SceneGraph::OBJNode::add_vertex
size_t add_vertex(const Vec3f &_v)
add vertex
Definition: OBJNode.hh:142
ACG::SceneGraph::OBJNode::n_texcoords
size_t n_texcoords() const
number of texcoords
Definition: OBJNode.hh:128
ACG::SceneGraph::OBJNode::vertex
const Vec3f & vertex(unsigned int _i) const
get i&#39;th vertex
Definition: OBJNode.hh:173
ACG::SceneGraph::OBJNode::OBJNode
OBJNode(BaseNode *_parent=0, const std::string &_name="<OBJNode>")
Default constructor.
Definition: OBJNode.hh:85
ACG::SceneGraph::OBJNode::add_face
size_t add_face(const Face &_f)
add triangle
Definition: OBJNode.hh:150