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302 lines
12 KiB
302 lines
12 KiB
/**************************************************************************** |
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* VCGLib o o * |
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* Visual and Computer Graphics Library o o * |
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* _ O _ * |
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* Copyright(C) 2004-2016 \/)\/ * |
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* Visual Computing Lab /\/| * |
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* ISTI - Italian National Research Council | * |
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* \ * |
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* All rights reserved. * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) * |
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* for more details. * |
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* * |
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****************************************************************************/ |
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#ifndef __VCG_FACE_PLUS |
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#define __VCG_FACE_PLUS |
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#include <vector> |
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#include <string> |
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#include <vcg/complex/all_types.h> |
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#include <vcg/container/derivation_chain.h> |
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#include "component.h" |
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namespace vcg { |
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/*------------------------------------------------------------------*/ |
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/* |
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The base class of all the recusive definition chain. It is just a container of the typenames of the various simplexes. |
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These typenames must be known form all the derived classes. |
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*/ |
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template <class UserTypes> |
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class FaceTypeHolder: public UserTypes { |
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public: |
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template <class LeftF> |
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void ImportData(const LeftF & ){} |
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static void Name(std::vector<std::string> & /* name */){} |
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// prot |
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inline int VN() const { return 3;} |
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inline int Prev(const int & i) const { return (i+(3-1))%3;} |
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inline int Next(const int & i) const { return (i+1)%3;} |
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inline void Alloc(const int & ){} |
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inline void Dealloc(){} |
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}; |
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/* The base class form which we start to add our components. |
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it has the empty definition for all the standard members (coords, color flags) |
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Note: |
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in order to avoid both virtual classes and ambiguous definitions all |
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the subsequent overrides must be done in a sequence of derivation. |
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In other words we cannot derive and add in a single derivation step |
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(with multiple ancestor), both the real (non-empty) normal and color but |
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we have to build the type a step a time (deriving from a single ancestor at a time). |
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*/ |
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template <class UserTypes> |
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class FaceBase: public |
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face::EmptyCore< FaceTypeHolder <UserTypes> > { |
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}; |
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/* The Real Big Face class; |
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The class __FaceArityMax__ is the one that is the Last to be derived, |
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and therefore is the only one to know the real members |
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(after the many overrides) so all the functions with common behaviour |
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using the members defined in the various Empty/nonEmpty component classes |
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MUST be defined here. |
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I.e. IsD() that uses the overridden Flags() member must be defined here. |
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*/ |
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template < class UserTypes, |
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template <typename> class A, template <typename> class B, |
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template <typename> class C, template <typename> class D, |
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template <typename> class E, template <typename> class F, |
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template <typename> class G, template <typename> class H, |
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template <typename> class I, template <typename> class J, |
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template <typename> class K, template <typename> class L > |
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class FaceArityMax: public L<Arity11<FaceBase<UserTypes>, A, B, C, D, E, F, G, H, I, J, K> > { |
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public: |
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typedef typename FaceArityMax::ScalarType ScalarType; |
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// ----- Flags stuff ----- |
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enum { |
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DELETED = 0x00000001, // Face is deleted from the mesh |
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NOTREAD = 0x00000002, // Face of the mesh is not readable |
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NOTWRITE = 0x00000004, // Face of the mesh is not writable |
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VISITED = 0x00000010, // Face has been visited. Usualy this is a per-algorithm used bit. |
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SELECTED = 0x00000020, // Face is selected. Algorithms should try to work only on selected face (if explicitly requested) |
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// Border _flags, it is assumed that BORDERi = BORDER0<<i |
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BORDER0 = 0x00000040, |
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BORDER1 = 0x00000080, |
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BORDER2 = 0x00000100, |
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BORDER012 = BORDER0 | BORDER1 | BORDER2 , |
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// Face Orientation Flags, used efficiently compute point face distance |
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NORMX = 0x00000200, |
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NORMY = 0x00000400, |
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NORMZ = 0x00000800, |
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// Face-Edge Selection Flags |
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FACEEDGESEL0 = 0x00008000, |
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FACEEDGESEL1 = 0x00010000, |
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FACEEDGESEL2 = 0x00020000, |
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FACEEDGESEL012 = FACEEDGESEL0 | FACEEDGESEL1 | FACEEDGESEL2 , |
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// Faux edges. (semantics: when a mesh is polygonal, edges which are inside a polygonal face are "faux" |
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FAUX0 = 0x00040000, |
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FAUX1 = 0x00080000, |
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FAUX2 = 0x00100000, |
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FAUX012 = FAUX0 | FAUX1 | FAUX2 , |
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// First user bit |
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USER0 = 0x00200000 |
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}; |
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/// checks if the Face is deleted |
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bool IsD() const {return (this->cFlags() & DELETED) != 0;} |
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/// checks if the Face is readable |
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bool IsR() const {return (this->cFlags() & NOTREAD) == 0;} |
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/// checks if the Face is modifiable |
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bool IsW() const {return (this->cFlags() & NOTWRITE)== 0;} |
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/// This funcion checks whether the Face is both readable and modifiable |
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bool IsRW() const {return (this->cFlags() & (NOTREAD | NOTWRITE)) == 0;} |
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/// checks if the Face is Modified |
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bool IsS() const {return (this->cFlags() & SELECTED) != 0;} |
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/// checks if the Face is Modified |
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bool IsV() const {return (this->cFlags() & VISITED) != 0;} |
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/** Set the flag value |
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@param flagp Valore da inserire nel flag |
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*/ |
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void SetFlags(int flagp) {this->Flags()=flagp;} |
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/** Set the flag value |
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@param flagp Valore da inserire nel flag |
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*/ |
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void ClearFlags() {this->Flags()=0;} |
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/// deletes the Face from the mesh |
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void SetD() {this->Flags() |=DELETED;} |
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/// undelete the Face |
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void ClearD() {this->Flags() &=(~DELETED);} |
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/// marks the Face as readable |
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void SetR() {this->Flags() &=(~NOTREAD);} |
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/// marks the Face as not readable |
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void ClearR() {this->Flags() |=NOTREAD;} |
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/// marks the Face as writable |
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void SetW() {this->Flags() &=(~NOTWRITE);} |
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/// marks the Face as notwritable |
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void ClearW() {this->Flags() |=NOTWRITE;} |
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/// select the Face |
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void SetS() {this->Flags() |=SELECTED;} |
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/// unselect the Face |
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void ClearS() {this->Flags() &= ~SELECTED;} |
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/// set as visited the Face |
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void SetV() {this->Flags() |=VISITED;} |
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/// set as unvisited the Face |
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void ClearV() {this->Flags() &= ~VISITED;} |
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/// This function checks if the face is border |
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bool IsB(int i) const {return (this->cFlags() & (BORDER0<<i)) != 0;} |
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/// This function select the face |
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void SetB(int i) {this->Flags() |=(BORDER0<<i);} |
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/// This funcion execute the inverse operation of SetS() |
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void ClearB(int i) {this->Flags() &= (~(BORDER0<<i));} |
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/// This function checks if the i-th face-edge is selected |
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bool IsFaceEdgeS(int i) const {return (this->cFlags() & (FACEEDGESEL0<<i)) != 0;} |
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/// This function select the i-th face-edge |
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void SetFaceEdgeS(int i){this->Flags() |=(FACEEDGESEL0<<i);} |
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/// This function de-select the i-th face-edge |
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void ClearFaceEdgeS(int i) {this->Flags() &= (~(FACEEDGESEL0<<i));} |
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/// This function checks if a given side of the face is a feature/internal edge |
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/// it is used by some importer to mark internal |
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/// edges of polygonal faces that have been triangulated |
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bool IsF(int i) const {return (this->cFlags() & (FAUX0<<i) ) != 0;} |
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bool IsAnyF() const {return (this->cFlags() & (FAUX0|FAUX1|FAUX2)) != 0;} |
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/// This function select the face |
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void SetF(int i) {this->Flags() |=(FAUX0<<i);} |
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/// This funcion execute the inverse operation of SetS() |
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void ClearF(int i) {this->Flags() &= (~(FAUX0<<i));} |
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void ClearAllF() { this->Flags() &= (~(FAUX0|FAUX1|FAUX2)); } |
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/// Return the first bit that is not still used |
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static int &FirstUnusedBitFlag() |
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{ |
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static int b =USER0; |
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return b; |
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} |
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/// Allocate a bit among the flags that can be used by user. It updates the FirstUnusedBitFlag. |
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static inline int NewBitFlag() |
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{ |
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int bitForTheUser = FirstUnusedBitFlag(); |
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FirstUnusedBitFlag()=FirstUnusedBitFlag()<<1; |
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return bitForTheUser; |
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} |
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/// De-allocate a pre allocated bit. It updates the FirstUnusedBitFlag. |
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// Note you must deallocate bit in the inverse order of the allocation (as in a stack) |
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static inline bool DeleteBitFlag(int bitval) |
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{ |
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if(FirstUnusedBitFlag()>>1==bitval) { |
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FirstUnusedBitFlag() = FirstUnusedBitFlag()>>1; |
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return true; |
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} |
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assert(0); |
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return false; |
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} |
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/// This function checks if the given user bit is true |
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bool IsUserBit(int userBit){return (this->Flags() & userBit) != 0;} |
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/// This function set the given user bit |
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void SetUserBit(int userBit){this->Flags() |=userBit;} |
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/// This function clear the given user bit |
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void ClearUserBit(int userBit){this->Flags() &= (~userBit);} |
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void GetBBox(Box3<ScalarType>& bb ) const |
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{ |
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if(this->IsD()) { |
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bb.SetNull(); |
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return; |
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} |
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bb.Set(this->cP(0)); |
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bb.Add(this->cP(1)); |
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bb.Add(this->cP(2)); |
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} |
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}; |
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/* |
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These are the three main classes that are used by the library user to define its own Facees. |
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The user MUST specify the names of all the type involved in a generic complex. |
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so for example when defining a Face of a trimesh you must know the name of the type of the edge and of the face. |
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Typical usage example: |
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A Face with coords, flags and normal for use in a standard trimesh: |
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class MyFaceNf : public FaceSimp2< VertProto, EdgeProto, MyFaceNf, face::Flag, face::Normal3f > {}; |
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A Face with coords, and normal for use in a tetrahedral mesh AND in a standard trimesh: |
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class TetraFace : public FaceSimp3< VertProto, EdgeProto, TetraFace, TetraProto, face::Coord3d, face::Normal3f > {}; |
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A summary of the components that can be added to a face (see components.h for details): |
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VertexRef |
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NormalFromVert, WedgeNormal |
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Normal3s, Normal3f, Normal3d |
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WedgeTexCoord2s, WedgeTexCoord2f, WedgeTexCoord2d |
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BitFlags |
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WedgeColor, Color4b |
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Qualitys, Qualityf, Qualityd |
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Mark //Incremental mark (int) |
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VFAdj //Topology vertex face adjacency |
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(pointers to next face in the ring of the vertex |
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FFAdj //topology: face face adj |
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pointers to adjacent faces |
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*/ |
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template <class UserTypes, |
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template <typename> class A = DefaultDeriver, template <typename> class B = DefaultDeriver, |
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template <typename> class C = DefaultDeriver, template <typename> class D = DefaultDeriver, |
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template <typename> class E = DefaultDeriver, template <typename> class F = DefaultDeriver, |
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template <typename> class G = DefaultDeriver, template <typename> class H = DefaultDeriver, |
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template <typename> class I = DefaultDeriver, template <typename> class J = DefaultDeriver, |
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template <typename> class K = DefaultDeriver, template <typename> class L = DefaultDeriver > |
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class Face: public FaceArityMax<UserTypes, A, B, C, D, E, F, G, H, I, J, K, L> { |
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public: typedef AllTypes::AFaceType IAm; typedef UserTypes TypesPool;}; |
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}// end namespace |
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#endif |
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