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LineNode.hh
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40 \*===========================================================================*/
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48 \*===========================================================================*/
49
50
51
52
53 //=============================================================================
54 //
55 // CLASS LineNode
56 //
57 //=============================================================================
58
59
60 #ifndef ACG_LINENODE_HH
61 #define ACG_LINENODE_HH
62
63
64 //== INCLUDES =================================================================
65
66 #include <ACG/Scenegraph/MaterialNode.hh>
67 #include "DrawModes.hh"
68 #include <ACG/GL/VertexDeclaration.hh>
69 #include <vector>
70 #include <limits>
71
72 //== NAMESPACES ===============================================================
73
74 namespace ACG {
75 namespace SceneGraph {
76
77 //== CLASS DEFINITION =========================================================
78
79
80
90 class ACGDLLEXPORT LineNode : public MaterialNode
91 {
92 public:
93
94 // typedefs
95 typedef ACG::Vec3uc Color;
96 typedef ACG::Vec4f Color4f;
97 typedef std::vector<Vec3d> PointVector;
98 typedef PointVector::iterator PointIter;
99 typedef PointVector::const_iterator ConstPointIter;
100 typedef std::vector<ACG::Vec3uc> ColorVector;
101 typedef ColorVector::iterator ColorIter;
102 typedef ColorVector::const_iterator ConstColorIter;
103 typedef std::vector<Color4f> Color4fVector;
104 typedef Color4fVector::iterator Color4fIter;
105 typedef Color4fVector::const_iterator ConstColor4fIter;
106
108 enum LineMode { LineSegmentsMode, PolygonMode };
109
110
111
113 LineNode( LineMode _mode,
114 BaseNode* _parent=0,
115 std::string _name="<LineNode>" );
116
118 ~LineNode();
119
121 void set_line_mode(LineMode _mode);
122
123
125 ACG_CLASSNAME(LineNode);
126
128 DrawModes::DrawMode availableDrawModes() const;
129
131 void boundingBox(Vec3d& _bbMin, Vec3d& _bbMax);
132
133
135 void enter(GLState& _state, const DrawModes::DrawMode& _drawMode);
136
138 void draw(GLState& _state, const DrawModes::DrawMode& _drawMode);
139
141 void leave(GLState& _state, const DrawModes::DrawMode& _drawMode);
142
144 void pick(GLState& _state , PickTarget _target);
145
147 void reserve_lines(unsigned int _n) { points_.reserve(2*_n); }
148
150 void reserve_points(unsigned int _n) { points_.reserve(_n); }
151
153 void clear();
154
156 void clear_points();
157
159 void clear_colors();
160
162 void set_color(const Vec4f& _c);
163
165 void add_point(const Vec3d& _v);
166
168 void add_line(const Vec3d& _v0, const Vec3d& _v1);
169
171 void add_color(const ACG::Vec3uc& _c);
172
174 void add_color(const Color4f _c);
175
177 void set_picking_line_width(float _width) { picking_line_width_ = _width; }
179 float picking_line_width() const
180 {
181 return (picking_line_width_ != std::numeric_limits<float>::infinity()) ? picking_line_width_ : line_width();
182 }
183
185 size_t n_points() const { return points_.size(); }
186
192 const PointVector& points() const { return points_; }
193
199 ColorVector& colors() { return colors_; }
200
202 bool& alwaysOnTop() { updateVBO_ = true; return draw_always_on_top; }
203
204 void updateVBO() { updateVBO_ = true; };
205
207 void push_back(const Vec3d& _v) { points_.push_back(_v); updateVBO_ = true; }
208 typedef Vec3d value_type;
209 typedef Vec3d& reference;
210 typedef const Vec3d& const_reference;
211
219 void getRenderObjects(IRenderer* _renderer, GLState& _state , const DrawModes::DrawMode& _drawMode , const ACG::SceneGraph::Material* _mat);
220
221 protected:
222
223 void pick_vertices(GLState& _state);
224 void pick_edges (GLState& _state, unsigned int _offset);
225
227 void createVBO();
228
231 float picking_line_width_;
232
233 PointVector points_;
234 ColorVector colors_;
235 Color4fVector colors4f_;
236
237 LineMode line_mode_;
238
239 bool draw_always_on_top;
240 GLint prev_depth_;
241
242 // Vertex buffer object used in this node
243 unsigned int vbo_;
244
245 // True if points changed and the vbo has to be updated
246 bool updateVBO_;
247
248 ACG::VertexDeclaration vertexDecl_;
249
250 std::string lineNodeName_;
251
252 };
253
254
255 //=============================================================================
256 } // namespace SceneGraph
257 } // namespace ACG
258 //=============================================================================
259 #endif // ACG_LINENODE_HH defined
260 //=============================================================================
261
OpenMesh::Attributes::Color
Add colors to mesh item (vertices/faces/edges)
Definition: Attributes.hh:88
ACG::SceneGraph::LineNode::reserve_lines
void reserve_lines(unsigned int _n)
reserve mem for _n lines
Definition: LineNode.hh:147
ACG
Namespace providing different geometric functions concerning angles.
Definition: DBSCANT.cc:51
ACG::SceneGraph::BaseNode
Definition: BaseNode.hh:135
ACG::SceneGraph::PickTarget
PickTarget
What target to use for picking.
Definition: BaseNode.hh:99
ACG::SceneGraph::LineNode::points
const PointVector & points() const
return reference to point vector
Definition: LineNode.hh:192
ACG::SceneGraph::LineNode::push_back
void push_back(const Vec3d &_v)
STL conformance.
Definition: LineNode.hh:207
ACG::GLState
Definition: GLState.hh:220
ACG::SceneGraph::LineNode::n_points
size_t n_points() const
number of points
Definition: LineNode.hh:185
ACG::SceneGraph::LineNode::reserve_points
void reserve_points(unsigned int _n)
reserve mem for _n points
Definition: LineNode.hh:150
ACG::IRenderer
Definition: IRenderer.hh:84
ACG::SceneGraph::DrawModes::DrawMode
Specifies a DrawMode.
Definition: DrawModes.hh:294
ACG::SceneGraph::ACG::SceneGraph::Material
Definition: MeshNode2T.cc:85
ACG::SceneGraph::ACG::VertexDeclaration
Class to define the vertex input layout.
Definition: MeshNode2T.cc:266
OpenMesh::VectorT
Definition: Vector11T.hh:83
ACG::SceneGraph::LineNode::picking_line_width_
float picking_line_width_
Definition: LineNode.hh:231
ACG::SceneGraph::LineNode::picking_line_width
float picking_line_width() const
get line width used by the picking renderer. Defaults to line_width().
Definition: LineNode.hh:179
ACG::SceneGraph::LineNode::alwaysOnTop
bool & alwaysOnTop()
get and set always on top
Definition: LineNode.hh:202
ACG::SceneGraph::LineNode::set_picking_line_width
void set_picking_line_width(float _width)
set line width used by the picking renderer
Definition: LineNode.hh:177
ACG::SceneGraph::LineNode
Definition: LineNode.hh:90
ACG::SceneGraph::MaterialNode
Definition: MaterialNode.hh:321
ACG::SceneGraph::LineNode::colors
ColorVector & colors()
get and set color container
Definition: LineNode.hh:199
ACG::SceneGraph::LineNode::LineMode
LineMode
Line mode: draw line segments (every 2 points) or ONE polyline.
Definition: LineNode.hh:108