Developer Documentation

BSplineSurfaceNodeT.hh
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40 \*===========================================================================*/
41
42
43
44
45 //=============================================================================
46 //
47 // CLASS BSplineSurfaceNodeT
48 // Author: Ellen Dekkers <dekkers@cs.rwth-aachen.de>
49 //
50 //=============================================================================
51
52
53 #ifndef ACG_BSPLINESURFACENODET_HH
54 #define ACG_BSPLINESURFACENODET_HH
55
56
57 //== INCLUDES =================================================================
58
59 #include <ACG/Scenegraph/BaseNode.hh>
60 #include <ACG/Scenegraph/DrawModes.hh>
61
62 #include <QGLWidget>
63
64 #include <QImage>
65
66
67 #include <ACG/GL/globjects.hh>
68 #include <ACG/GL/VertexDeclaration.hh>
69 #include <ACG/GL/GLPrimitives.hh>
70
71 //== FORWARDDECLARATIONS ======================================================
72
73 //== NAMESPACES ===============================================================
74
75 namespace ACG {
76 namespace SceneGraph {
77
78 //== CLASS DEFINITION =========================================================
79
80
87 template <class BSplineSurfaceType>
88 class BSplineSurfaceNodeT : public BaseNode
89 {
90 public:
91
92 // typedefs for easy access
93 typedef typename BSplineSurfaceType::Point Point;
94
96 BSplineSurfaceNodeT(BSplineSurfaceType& _bss,
97 BaseNode* _parent=0,
98 std::string _name="<BSplineSurfaceNode>" ) :
99 BaseNode(_parent, _name),
100 bsplineSurface_(_bss),
101 bspline_draw_mode_(NORMAL),
102 bspline_selection_draw_mode_(NONE),
103 pick_radius_(1.0),
104 resolution_(16),
105 controlnet_color_( Vec4f(34.f/255.f, 139.f/255.f, 34.f/255.f, 1.f) ),
106 controlnet_highlight_color_( Vec4f(1.0f, 1.0f, 1.0f, 1.0f) ),
107 surface_color_( Vec4f(178.0f/255.0f, 34.0f/255.0f, 34.0f/255.0f, 1.0f) ),
108 surface_highlight_color_( Vec4f(1.0f, 1.0f, 1.0f, 1.0f) ),
109 render_control_net_(false),
110 render_bspline_surface_(true),
111 adaptive_sampling_(false),
112 controlPointSelectionTexture_valid_(false),
113 knotVectorSelectionTexture_valid_(false),
114 pick_texture_idx_(0),
115 pick_texture_res_(256),
116 pick_texture_baseidx_(0),
117 cp_selection_texture_idx_(0),
118 cp_selection_texture_res_(256),
119 knot_selection_texture_idx_(0),
120 knot_selection_texture_res_(256),
121 arb_texture_idx_(0),
122 arb_texture_used_(false),
123 arb_texture_repeat_(false),
124 arb_texture_repeat_u_(1.0),
125 arb_texture_repeat_v_(1.0),
126 surfaceIndexCount_(0),
127 invalidateSurfaceMesh_(true),
128 controlNetSelIndices_(0),
129 controlNetLineIndices_(0),
130 invalidateControlNetMesh_(true),
131 invalidateControlNetMeshSel_(true)
132 {
133 cylinder_ = new GLCylinder(16, 1, 1.0f, true, true);
134 sphere_ = new GLSphere(5, 5);
135 fancySphere_ = new GLSphere(16, 16);
136 }
137
139 ~BSplineSurfaceNodeT()
140 {
141 delete cylinder_;
142 delete sphere_;
143 delete fancySphere_;
144 }
145
146 enum BSplineDrawMode {
147 NORMAL = 0,
148 FANCY = 1
149 };
150
151 enum BSplineSelectionDrawMode {
152 NONE = 0,
153 CONTROLPOINT = 1,
154 KNOTVECTOR = 2
155 };
156
157
158 BSplineSurfaceType& bsplineSurface() { return bsplineSurface_; }
159
160 void set_pick_radius( double _pr) { pick_radius_ = _pr; }
161
163 ACG_CLASSNAME(BSplineSurfaceNodeT);
164
166 DrawModes::DrawMode availableDrawModes() const override;
167
169 void boundingBox(Vec3d& _bbMin, Vec3d& _bbMax) override;
170
172 void draw(GLState& _state, const DrawModes::DrawMode& _drawMode) override;
173
175 void getRenderObjects(IRenderer* _renderer, GLState& _state , const DrawModes::DrawMode& _drawMode , const Material* _mat) override;
176
178 void pick(GLState& _state, PickTarget _target) override;
179
181 void updateGeometry();
182
183 void set_rendering_resolution(int _res){resolution_ = _res;};
184
185 void render_control_net(bool _render) {render_control_net_ = _render;};
186
187 bool render_control_net() {return render_control_net_; };
188
189 void render_bspline_surface(bool _render) {render_bspline_surface_ = _render;};
190
191 bool render_bspline_surface() { return render_bspline_surface_; };
192
193 void set_bspline_draw_mode(BSplineDrawMode _mode) {bspline_draw_mode_ = _mode;};
194
195 void set_selection_draw_mode(BSplineSelectionDrawMode _mode) {bspline_selection_draw_mode_ = _mode;};
196
197 BSplineSelectionDrawMode get_selection_draw_mode() const { return bspline_selection_draw_mode_; }
198
199 void adaptive_sampling(bool _adaptive){adaptive_sampling_ = _adaptive;};
200
201 void cpSelectionTextureValid (bool _valid){controlPointSelectionTexture_valid_ = _valid;};
202 void knotSelectionTextureValid(bool _valid){knotVectorSelectionTexture_valid_ = _valid;};
203
204
206 int& pick_texture_res( ) { return pick_texture_res_; }
207
209 void set_arb_texture( const QImage& _texture, bool _repeat = false, float _u_repeat = 1.0f, float _v_repeat = 1.0f);
210 void set_arb_texture(const GLuint _texture) { arb_texture_idx_ = _texture; }
211 void set_repeat_arb_texture(bool _repeat = true, float _urep = 5.0f, float _vrep = 5.0f) { arb_texture_repeat_ = _repeat; arb_texture_repeat_u_ = _urep; arb_texture_repeat_v_ = _vrep; }
212 bool get_repeat_arb_texture( ) { return arb_texture_repeat_; }
213
214
215
216 private:
217
218 void pick_vertices( GLState& _state );
219 void pick_spline( GLState& _state );
220 void pick_surface( GLState& _state, unsigned int _offset );
221
222 void draw_cylinder( const Point& _p0, const Point& _axis, double _r, GLState& _state);
223 void draw_sphere ( const Point& _p0, double _r, GLState& _state, GLSphere* _sphere);
224
226 BSplineSurfaceNodeT(const BSplineSurfaceNodeT& _rhs);
227
229 BSplineSurfaceNodeT& operator=(const BSplineSurfaceNodeT& _rhs);
230
231 void render(GLState& _state, bool _fill);
232
233 void drawSurface(GLState& _state, bool _fill = true);
234
235 void drawTexturedSurface(GLState& _state, GLuint _texture_idx);
236
237 void drawControlNet(GLState& _state);
238
239 void drawFancyControlNet(GLState& _state);
240
241 void updateControlPointSelectionTexture(GLState& _state);
242
243 void updateKnotVectorSelectionTexture(GLState& _state);
244
246 void pick_init_texturing ( );
249 void pick_create_texture( GLState& _state);
250
252 void pick_draw_textured_nurbs( GLState& _state);
253
255 void selection_init_texturing(GLuint & _texture_idx);
256
258 void create_cp_selection_texture(GLState& _state);
260 void create_knot_selection_texture(GLState& _state);
261
263 void draw_textured_nurbs( GLState& _state);
264
265 ACG::Vec4f generateHighlightColor(ACG::Vec4f _color);
266
268 void updateSurfaceMesh(int _vertexCountU = 50, int _vertexCountV = 50);
269
271 void updateControlNetMesh();
272
274 void updateControlNetMeshSel();
275
277 void updateTexBuffers();
278
279 private:
280
281 BSplineSurface& bsplineSurface_;
282
283 BSplineDrawMode bspline_draw_mode_;
284
285 BSplineSelectionDrawMode bspline_selection_draw_mode_;
286
287 double pick_radius_;
288
289 int resolution_;
290
291 Vec4f controlnet_color_;
292 Vec4f controlnet_highlight_color_;
293
294 Vec4f surface_color_;
295 Vec4f surface_highlight_color_;
296
297 bool render_control_net_;
298 bool render_bspline_surface_;
299
300 bool adaptive_sampling_;
301
302 bool controlPointSelectionTexture_valid_;
303 bool knotVectorSelectionTexture_valid_;
304
305 QImage pick_texture_image_;
306 GLuint pick_texture_idx_;
307 int pick_texture_res_;
308 // used to only re-create pick_texture_image_ if picking indices changed...
309 unsigned int pick_texture_baseidx_;
310
311 // texturing stuff for control point selection highlighting
312 QImage cp_selection_texture_image_;
313 GLuint cp_selection_texture_idx_;
314 int cp_selection_texture_res_;
315
316 // texturing stuff for knot vector selection highlighting
317 QImage knot_selection_texture_image_;
318 GLuint knot_selection_texture_idx_;
319 int knot_selection_texture_res_;
320
321 // texturing stuff for using arbitrary textures
322 QImage arb_texture_image_;
323 GLuint arb_texture_idx_;
324 bool arb_texture_used_;
325 bool arb_texture_repeat_;
326 float arb_texture_repeat_u_;
327 float arb_texture_repeat_v_;
328
329 GLCylinder* cylinder_;
330 GLSphere* sphere_;
331 GLSphere* fancySphere_;
332
333
334 // surface mesh
335 GeometryBuffer surfaceVBO_;
336 IndexBuffer surfaceIBO_;
337 VertexDeclaration surfaceDecl_;
338 int surfaceIndexCount_;
339 bool invalidateSurfaceMesh_;
340
341 // control net mesh
342 GeometryBuffer controlNetVBO_;
343 IndexBuffer controlNetSelIBO_;
344 int controlNetSelIndices_;
345 IndexBuffer controlNetLineIBO_;
346 int controlNetLineIndices_;
347 VertexDeclaration controlNetDecl_;
348 bool invalidateControlNetMesh_;
349 bool invalidateControlNetMeshSel_;
350
351 // GPU based evaluation
352 TextureBuffer knotTexBufferU_;
353 TextureBuffer knotTexBufferV_;
354 Texture2D controlPointTex_;
355 };
356
357 //=============================================================================
358 } // namespace SceneGraph
359 } // namespace ACG
360 //=============================================================================
361 #if defined(INCLUDE_TEMPLATES) && !defined(ACG_BSPLINESURFACENODET_C)
362 #define ACG_BSPLINESURFACENODET_TEMPLATES
363 #include "BSplineSurfaceNodeT_impl.hh"
364 #endif
365 //=============================================================================
366 #endif // ACG_BSPLINESURFACENODET_HH defined
367 //=============================================================================
368
ACG::SceneGraph::BSplineSurfaceNodeT::pick_init_texturing
void pick_init_texturing()
generate index and setup texture parameters
Definition: BSplineSurfaceNodeT_impl.hh:1218
ACG::TextureBuffer
Definition: globjects.hh:513
ACG::SceneGraph::BSplineSurfaceNodeT::draw_textured_nurbs
void draw_textured_nurbs(GLState &_state)
draw textured nurbs patch
ACG::GLState
Definition: GLState.hh:213
ACG::SceneGraph::BSplineSurfaceNodeT::availableDrawModes
DrawModes::DrawMode availableDrawModes() const override
return available draw modes
Definition: BSplineSurfaceNodeT_impl.hh:93
ACG
Namespace providing different geometric functions concerning angles.
Definition: BaseObjectData.hh:68
ACG::SceneGraph::BSplineSurfaceNodeT::updateTexBuffers
void updateTexBuffers()
update texture resources for gpu-based spline evaluation
Definition: BSplineSurfaceNodeT_impl.hh:1650
ACG::SceneGraph::BSplineSurfaceNodeT::boundingBox
void boundingBox(Vec3d &_bbMin, Vec3d &_bbMax) override
update bounding box
Definition: BSplineSurfaceNodeT_impl.hh:76
ACG::SceneGraph::BSplineSurfaceNodeT::pick_texture_res
int & pick_texture_res()
Should be a power of 2.
Definition: BSplineSurfaceNodeT.hh:206
ACG::SceneGraph::BSplineSurfaceNodeT::updateControlNetMesh
void updateControlNetMesh()
update vertex + index buffer of control net mesh
Definition: BSplineSurfaceNodeT_impl.hh:1511
ACG::VertexDeclaration
Class to define the vertex input layout.
Definition: VertexDeclaration.hh:268
ACG::Texture2D
Definition: globjects.hh:391
OpenMesh::VectorT
Definition: Vector11T.hh:83
ACG::SceneGraph::BSplineSurfaceNodeT::create_knot_selection_texture
void create_knot_selection_texture(GLState &_state)
creates texture to put onto nurbs curve for visualization of knotvector selection ...
Definition: BSplineSurfaceNodeT_impl.hh:1081
ACG::SceneGraph::BSplineSurfaceNodeT::pick
void pick(GLState &_state, PickTarget _target) override
picking
Definition: BSplineSurfaceNodeT_impl.hh:735
ACG::SceneGraph::BSplineSurfaceNodeT::updateGeometry
void updateGeometry()
update vertex buffer for rendering
Definition: BSplineSurfaceNodeT_impl.hh:724
ACG::IRenderer
Definition: IRenderer.hh:78
ACG::SceneGraph::BSplineSurfaceNodeT::~BSplineSurfaceNodeT
~BSplineSurfaceNodeT()
Destructor.
Definition: BSplineSurfaceNodeT.hh:139
SceneGraph
Definition: QtPrincipalAxisDialog.hh:67
ACG::SceneGraph::PickTarget
PickTarget
What target to use for picking.
Definition: PickTarget.hh:73
ACG::SceneGraph::BSplineSurfaceNodeT::operator=
BSplineSurfaceNodeT & operator=(const BSplineSurfaceNodeT &_rhs)
Assignment operator (not used)
ACG::SceneGraph::BSplineSurfaceNodeT::pick_create_texture
void pick_create_texture(GLState &_state)
create texture image
Definition: BSplineSurfaceNodeT_impl.hh:1246
ACG::GLSphere
Definition: GLPrimitives.hh:139
ACG::BSplineSurfaceT
Definition: BSplineSurfaceT.hh:82
ACG::SceneGraph::BaseNode
Definition: BaseNode.hh:104
ACG::SceneGraph::BSplineSurfaceNodeT::ACG_CLASSNAME
ACG_CLASSNAME(BSplineSurfaceNodeT)
static name of this class
ACG::SceneGraph::BSplineSurfaceNodeT::selection_init_texturing
void selection_init_texturing(GLuint &_texture_idx)
generate index and setup texture parameters for selection visualization
Definition: BSplineSurfaceNodeT_impl.hh:954
ACG::SceneGraph::DrawModes::DrawMode
Specifies a DrawMode.
Definition: DrawModes.hh:288
ACG::SceneGraph::BSplineSurfaceNodeT::draw
void draw(GLState &_state, const DrawModes::DrawMode &_drawMode) override
draw lines and normals
Definition: BSplineSurfaceNodeT_impl.hh:283
ACG::SceneGraph::BSplineSurfaceNodeT::create_cp_selection_texture
void create_cp_selection_texture(GLState &_state)
creates texture to put onto nurbs curve for visualization of control point selection ...
Definition: BSplineSurfaceNodeT_impl.hh:977
ACG::SceneGraph::BSplineSurfaceNodeT::getRenderObjects
void getRenderObjects(IRenderer *_renderer, GLState &_state, const DrawModes::DrawMode &_drawMode, const Material *_mat) override
create render objects
Definition: BSplineSurfaceNodeT_impl.hh:116
ACG::SceneGraph::BSplineSurfaceNodeT::BSplineSurfaceNodeT
BSplineSurfaceNodeT(BSplineSurfaceType &_bss, BaseNode *_parent=0, std::string _name="<BSplineSurfaceNode>")
Constructor.
Definition: BSplineSurfaceNodeT.hh:96
ACG::SceneGraph::BSplineSurfaceNodeT::pick_draw_textured_nurbs
void pick_draw_textured_nurbs(GLState &_state)
draw textured nurbs patch
ACG::SceneGraph::BSplineSurfaceNodeT::set_arb_texture
void set_arb_texture(const QImage &_texture, bool _repeat=false, float _u_repeat=1.0f, float _v_repeat=1.0f)
use arbitrary texture (in SOLID_TEXTURED mode)
Definition: BSplineSurfaceNodeT_impl.hh:1313
ACG::SceneGraph::BSplineSurfaceNodeT::updateControlNetMeshSel
void updateControlNetMeshSel()
update index buffer of selected control points
Definition: BSplineSurfaceNodeT_impl.hh:1593
ACG::GLCylinder
Definition: GLPrimitives.hh:218
ACG::SceneGraph::Material
Definition: MaterialNode.hh:79
ACG::SceneGraph::BSplineSurfaceNodeT
Definition: BSplineSurfaceNodeT.hh:88
ACG::SceneGraph::BSplineSurfaceNodeT::updateSurfaceMesh
void updateSurfaceMesh(int _vertexCountU=50, int _vertexCountV=50)
update vertex + index buffer of surface mesh
Definition: BSplineSurfaceNodeT_impl.hh:1366