QGIS API Documentation  3.4.15-Madeira (e83d02e274)
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1 /***************************************************************************
2  TriDecorator.h - description
3  -------------------
4  copyright : (C) 2004 by Marco Hugentobler
5  email : [email protected]
6  ***************************************************************************/
8 /***************************************************************************
9  * *
10  * This program is free software; you can redistribute it and/or modify *
11  * it under the terms of the GNU General Public License as published by *
12  * the Free Software Foundation; either version 2 of the License, or *
13  * (at your option) any later version. *
14  * *
15  ***************************************************************************/
20 #include "Triangulation.h"
21 #include "qgis.h"
22 #include "qgis_analysis.h"
24 #define SIP_NO_FILE
31 class ANALYSIS_EXPORT TriDecorator : public Triangulation
32 {
33  public:
35  TriDecorator() = default;
36  explicit TriDecorator( Triangulation *t );
37  void addLine( const QVector< QgsPoint> &points, QgsInterpolator::SourceType lineType ) override;
38  int addPoint( const QgsPoint &p ) override;
40  virtual void addTriangulation( Triangulation *t );
42  void performConsistencyTest() override;
43  bool calcNormal( double x, double y, Vector3D *result SIP_OUT ) override;
44  bool calcPoint( double x, double y, QgsPoint &result SIP_OUT ) override;
45  QgsPoint *getPoint( int i ) const override;
46  int getNumberOfPoints() const override;
47  bool getTriangle( double x, double y, QgsPoint &p1 SIP_OUT, int &n1 SIP_OUT, QgsPoint &p2 SIP_OUT, int &n2 SIP_OUT, QgsPoint &p3 SIP_OUT, int &n3 SIP_OUT ) SIP_PYNAME( getTriangleVertices ) override;
48  bool getTriangle( double x, double y, QgsPoint &p1 SIP_OUT, QgsPoint &p2 SIP_OUT, QgsPoint &p3 SIP_OUT ) override;
49  int getOppositePoint( int p1, int p2 ) override;
50  QList<int> getSurroundingTriangles( int pointno ) override;
51  double getXMax() const override;
52  double getXMin() const override;
53  double getYMax() const override;
54  double getYMin() const override;
56  void setEdgeColor( int r, int g, int b ) override;
57  void setForcedEdgeColor( int r, int g, int b ) override;
58  void setBreakEdgeColor( int r, int g, int b ) override;
59  void setTriangleInterpolator( TriangleInterpolator *interpolator ) override;
60  void eliminateHorizontalTriangles() override;
61  void ruppertRefinement() override;
62  bool pointInside( double x, double y ) override;
63  bool swapEdge( double x, double y ) override;
64  QList<int> *getPointsAroundEdge( double x, double y ) override;
65  protected:
67  Triangulation *mTIN = nullptr;
68 };
70 #ifndef SIP_RUN
73  : mTIN( t )
74 {
76 }
79 {
80  mTIN = t;
81 }
83 #endif
84 #endif
virtual bool swapEdge(double x, double y)=0
Reads the content of a taff-file.
virtual void setBreakEdgeColor(int r, int g, int b)=0
Sets the color of the breaklines.
virtual void addTriangulation(Triangulation *t)
Adds an association to a triangulation.
Definition: TriDecorator.h:78
virtual double getYMax() const =0
Returns the largest y-coordinate value of the bounding box.
Triangulation * mTIN
Association with a Triangulation object.
Definition: TriDecorator.h:67
virtual void setEdgeColor(int r, int g, int b)=0
Sets the color of the normal edges.
virtual double getXMax() const =0
Returns the largest x-coordinate value of the bounding box.
virtual void performConsistencyTest()=0
Performs a consistency check, remove this later.
virtual void ruppertRefinement()=0
Adds points to make the triangles better shaped (algorithm of ruppert)
Describes the type of input data.
virtual bool pointInside(double x, double y)=0
Returns true, if the point with coordinates x and y is inside the convex hull and false otherwise...
virtual QgsPoint * getPoint(int i) const =0
Returns a pointer to the point with number i. Any virtual points must have the number -1...
Class Vector3D represents a 3D-Vector, capable to store x-,y- and z-coordinates in double values...
Definition: Vector3D.h:33
This is an interface for interpolator classes for triangulations.
virtual int getNumberOfPoints() const =0
Returns the number of points.
virtual void setForcedEdgeColor(int r, int g, int b)=0
Sets the color of the forced edges.
virtual bool getTriangle(double x, double y, QgsPoint &p1, int &n1, QgsPoint &p2, int &n2, QgsPoint &p3, int &n3)=0
Finds out in which triangle the point with coordinates x and y is and assigns the numbers of the vert...
Interface for Triangulation classes.
Definition: Triangulation.h:38
Point geometry type, with support for z-dimension and m-values.
Definition: qgspoint.h:37
virtual int addPoint(const QgsPoint &point)=0
Adds a point to the triangulation.
virtual double getXMin() const =0
Returns the smallest x-coordinate value of the bounding box.
Decorator class for Triangulations (s.
Definition: TriDecorator.h:31
Constructor for TriDecorator.
virtual bool calcNormal(double x, double y, Vector3D *result)=0
Calculates the normal at a point on the surface and assigns it to &#39;result&#39;.
virtual QList< int > getSurroundingTriangles(int pointno)=0
Returns a pointer to a value list with the information of the triangles surrounding (counterclockwise...
virtual QList< int > * getPointsAroundEdge(double x, double y)=0
Returns a value list with the numbers of the four points, which would be affected by an edge swap...
#define SIP_OUT
Definition: qgis_sip.h:51
virtual void setForcedCrossBehavior(Triangulation::ForcedCrossBehavior b)=0
Draws the points, edges and the forced lines.
virtual double getYMin() const =0
Returns the smallest x-coordinate value of the bounding box.
virtual void addLine(const QVector< QgsPoint > &points, QgsInterpolator::SourceType lineType)=0
Adds a line (e.g.
virtual void eliminateHorizontalTriangles()=0
Eliminates the horizontal triangles by swapping.
virtual int getOppositePoint(int p1, int p2)=0
Returns the number of the point opposite to the triangle points p1, p2 (which have to be on a halfedg...
Enumeration describing the behavior, if two forced lines cross.
Definition: Triangulation.h:42
virtual bool calcPoint(double x, double y, QgsPoint &result)=0
Calculates x-, y and z-value of the point on the surface and assigns it to &#39;result&#39;.
#define SIP_PYNAME(name)
Definition: qgis_sip.h:74
virtual void setTriangleInterpolator(TriangleInterpolator *interpolator)=0
Sets an interpolator object.