1 | /*
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2 | * TesselationHelpers.hpp
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3 | *
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4 | * Auxiliary functions for the tesselation.
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5 | *
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6 | * Created on: Aug 3, 2009
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7 | * Author: heber
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8 | */
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9 |
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10 | #ifndef TESSELATIONHELPERS_HPP_
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11 | #define TESSELATIONHELPERS_HPP_
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12 |
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13 | using namespace std;
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14 |
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15 | /*********************************************** includes ***********************************/
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16 |
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17 | // include config.h
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18 | #ifdef HAVE_CONFIG_H
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19 | #include <config.h>
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20 | #endif
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21 |
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22 | #include <gsl/gsl_linalg.h>
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23 | #include <gsl/gsl_matrix.h>
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24 | #include <gsl/gsl_multimin.h>
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25 | #include <gsl/gsl_permutation.h>
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26 | #include <gsl/gsl_vector.h>
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27 |
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28 | #include <iostream>
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29 |
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30 | #include "defs.hpp"
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31 |
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32 | /****************************************** forward declarations *****************************/
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33 |
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34 | class BoundaryPointSet;
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35 | class BoundaryLineSet;
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36 | class BoundaryTriangleSet;
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37 | class LinkedCell;
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38 | class TesselPoint;
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39 | class PointCloud;
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40 | class Tesselation;
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41 | class Vector;
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42 |
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43 | /********************************************** definitions *********************************/
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44 |
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45 | #define HULLEPSILON 1e-9 //!< TODO: Get rid of HULLEPSILON, points to numerical instabilities
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46 |
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47 | /********************************************** declarations *******************************/
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48 |
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49 | double DetGet(gsl_matrix * const A, const int inPlace);
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50 | void GetSphere(Vector * const Center, const Vector &a, const Vector &b, const Vector &c, const double RADIUS);
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51 | void GetCenterOfSphere(Vector* const Center, const Vector &a, const Vector &b, const Vector &c, Vector * const NewUmkreismittelpunkt, const Vector* const Direction, const Vector* const AlternativeDirection, const double HalfplaneIndicator, const double AlternativeIndicator, const double alpha, const double beta, const double gamma, const double RADIUS, const double Umkreisradius);
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52 | void GetCenterofCircumcircle(Vector * const Center, const Vector &a, const Vector &b, const Vector &c);
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53 | double GetPathLengthonCircumCircle(const Vector &CircleCenter, const Vector &CirclePlaneNormal, const double CircleRadius, const Vector &NewSphereCenter, const Vector &OldSphereCenter, const Vector &NormalVector, const Vector &SearchDirection);
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54 | double MinIntersectDistance(const gsl_vector * x, void *params);
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55 | bool existsIntersection(const Vector &point1, const Vector &point2, const Vector &point3, const Vector &point4);
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56 | double CalculateVolumeofGeneralTetraeder(const Vector &a, const Vector &b, const Vector &c, const Vector &d);
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57 | double CalculateAreaofGeneralTriangle(const Vector &A, const Vector &B, const Vector &C);
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58 | double GetAngle(const Vector &point, const Vector &reference, const Vector &OrthogonalVector);
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59 |
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60 | bool CheckLineCriteriaForDegeneratedTriangle(const BoundaryPointSet * const nodes[3]);
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61 | bool SortCandidates(const CandidateForTesselation* candidate1, const CandidateForTesselation *candidate2);
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62 | TesselPoint* FindClosestTesselPoint(const Vector* Point, TesselPoint *&SecondPoint, const LinkedCell* const LC);
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63 | TesselPoint* FindSecondClosestTesselPoint(const Vector*, const LinkedCell* const LC);
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64 | Vector * GetClosestPointBetweenLine(const BoundaryLineSet * const Base, const BoundaryLineSet * const OtherBase);
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65 |
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66 | void WriteTecplotFile(ofstream * const tecplot, const Tesselation * const TesselStruct, const PointCloud * const cloud, const int N);
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67 | void WriteRaster3dFile(ofstream * const rasterfile, const Tesselation * const Tess, const PointCloud * const cloud);
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68 | void IncludeSphereinRaster3D(ofstream * const rasterfile, const Tesselation *Tess, const PointCloud *cloud);
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69 | void WriteVrmlFile(ofstream * const vrmlfile, const Tesselation * const Tess, const PointCloud * const cloud);
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70 | void CalculateConcavityPerBoundaryPoint(const Tesselation * const TesselStruct);
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71 | void CalculateConstrictionPerBoundaryPoint(const Tesselation * const TesselStruct, const Tesselation * const Convex);
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72 | double DistanceToTrianglePlane(const Vector *x, const BoundaryTriangleSet * const triangle);
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73 |
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74 | bool CheckListOfBaselines(const Tesselation * const TesselStruct);
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75 |
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76 | int CountTrianglePairContainingPolygon(const BoundaryPolygonSet * const P, const TriangleSet * const T);
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77 | bool ArePolygonsEdgeConnected(const BoundaryPolygonSet * const P1, const BoundaryPolygonSet * const P2);
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78 | void CombinePolygons(BoundaryPolygonSet * const P1, BoundaryPolygonSet * &P2);
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79 |
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80 |
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81 | #endif /* TESSELATIONHELPERS_HPP_ */
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