QGIS API Documentation  2.8.2-Wien
NormVecDecorator.h
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1 /***************************************************************************
2  NormVecDecorator.h - description
3  -------------------
4  copyright : (C) 2004 by Marco Hugentobler
5  email : mhugent@geo.unizh.ch
6  ***************************************************************************/
7
8 /***************************************************************************
9  * *
10  * This program is free software; you can redistribute it and/or modify *
12  * the Free Software Foundation; either version 2 of the License, or *
13  * (at your option) any later version. *
14  * *
15  ***************************************************************************/
16
17 #ifndef NORMVECDECORATOR_H
18 #define NORMVECDECORATOR_H
19
20 #include "TriDecorator.h"
21 #include <TriangleInterpolator.h>
22 #include <MathUtils.h>
23 #include "qgslogger.h"
24 class QProgressDialog;
25
27 class ANALYSIS_EXPORT NormVecDecorator: public TriDecorator
28 {
29  public:
31  enum pointState {NORMAL, BREAKLINE, ENDPOINT};
34  virtual ~NormVecDecorator();
36  int addPoint( Point3D* p ) override;
38  bool calcNormal( double x, double y, Vector3D* result ) override;
40  bool calcNormalForPoint( double x, double y, int point, Vector3D* result );
42  bool calcPoint( double x, double y, Point3D* result ) override;
44  virtual void eliminateHorizontalTriangles() override;
46  bool estimateFirstDerivative( int pointno );
48  bool estimateFirstDerivatives( QProgressDialog* d = 0 );
50  Vector3D* getNormal( int n ) const;
52  bool getTriangle( double x, double y, Point3D* p1, Vector3D* v1, Point3D* p2, Vector3D* v2, Point3D* p3, Vector3D* v3 );
54
55  bool getTriangle( double x, double y, Point3D* p1, int* ptn1, Vector3D* v1, pointState* state1, Point3D* p2, int* ptn2, Vector3D* v2, pointState* state2, Point3D* p3, int* ptn3, Vector3D* v3, pointState* state3 );
57  pointState getState( int pointno ) const;
59  void setTriangleInterpolator( TriangleInterpolator* inter ) override;
61  virtual bool swapEdge( double x, double y ) override;
64  virtual bool saveAsShapefile( const QString& fileName ) const override;
65
66  protected:
69  const static unsigned int mDefaultStorageForNormals = 100000;
73  QVector<Vector3D*>* mNormVec;
75  QVector<pointState>* mPointState;
77  void setState( int pointno, pointState s );
78 };
79
80 inline NormVecDecorator::NormVecDecorator(): TriDecorator(), mInterpolator( 0 ), mNormVec( new QVector<Vector3D*>( mDefaultStorageForNormals ) ), mPointState( new QVector<pointState>( mDefaultStorageForNormals ) )
81 {
83 }
84
85 inline NormVecDecorator::NormVecDecorator( Triangulation* tin ): TriDecorator( tin ), mInterpolator( 0 ), mNormVec( new QVector<Vector3D*>( mDefaultStorageForNormals ) ), mPointState( new QVector<pointState>( mDefaultStorageForNormals ) )
86 {
88 }
89
91 {
92  mInterpolator = inter;
93 }
94
95 inline Vector3D* NormVecDecorator::getNormal( int n ) const
96 {
97  if ( mNormVec )
98  {
99  return mNormVec->at( n );
100  }
101  else
102  {
103  QgsDebugMsg( "warning, null pointer" );
104  return 0;
105  }
106 }
107
108 #endif