QGIS API Documentation 3.29.0-Master (da8bb1db43)
TriDecorator.h
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1/***************************************************************************
2 TriDecorator.h - description
3 -------------------
4 copyright : (C) 2004 by Marco Hugentobler
6 ***************************************************************************/
7
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 ***************************************************************************/
16
17#ifndef TRIDECORATOR_H
18#define TRIDECORATOR_H
19
20#include "qgstriangulation.h"
21#include "qgis_sip.h"
22#include "qgis_analysis.h"
23
24#define SIP_NO_FILE
25
31class ANALYSIS_EXPORT TriDecorator : public QgsTriangulation
32{
33 public:
35 TriDecorator() = default;
37 explicit TriDecorator( QgsTriangulation *t );
38 void addLine( const QVector< QgsPoint> &points, QgsInterpolator::SourceType lineType ) override;
39 int addPoint( const QgsPoint &p ) override;
41 virtual void addTriangulation( QgsTriangulation *t );
43 void performConsistencyTest() override;
44 bool calcNormal( double x, double y, QgsPoint &result SIP_OUT ) override;
45 bool calcPoint( double x, double y, QgsPoint &result SIP_OUT ) override;
46 QgsPoint *point( int i ) const override;
47 int pointsCount() const override;
48 bool triangleVertices( 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 ) override;
49 bool triangleVertices( double x, double y, QgsPoint &p1 SIP_OUT, QgsPoint &p2 SIP_OUT, QgsPoint &p3 SIP_OUT ) override;
50 int oppositePoint( int p1, int p2 ) override;
51 QList<int> surroundingTriangles( int pointno ) override;
52 double xMax() const override;
53 double xMin() const override;
54 double yMax() const override;
55 double yMin() const override;
57 void setTriangleInterpolator( TriangleInterpolator *interpolator ) override;
58 void eliminateHorizontalTriangles() override;
59 void ruppertRefinement() override;
60 bool pointInside( double x, double y ) override;
61 bool swapEdge( double x, double y ) override;
62 QList<int> pointsAroundEdge( double x, double y ) override;
63 protected:
65 QgsTriangulation *mTIN = nullptr;
66};
67
68#ifndef SIP_RUN
69
71 : mTIN( t )
72{
73
74}
75
77{
78 mTIN = t;
79}
80
81#endif
82#endif
83
SourceType
Describes the type of input data.
Point geometry type, with support for z-dimension and m-values.
Definition: qgspoint.h:49
Interface for Triangulation classes.
virtual bool calcNormal(double x, double y, QgsPoint &result)=0
Calculates the normal at a point on the surface and assigns it to 'result'.
virtual double yMax() const =0
Returns the largest y-coordinate value of the bounding box.
virtual void eliminateHorizontalTriangles()=0
Eliminates the horizontal triangles by swapping.
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)
virtual int pointsCount() const =0
Returns the number of points.
virtual double xMax() const =0
Returns the largest x-coordinate value of the bounding box.
virtual double yMin() const =0
Returns the smallest x-coordinate value of the bounding box.
ForcedCrossBehavior
Enumeration describing the behavior, if two forced lines cross.
virtual QgsPoint * point(int i) const =0
Returns a pointer to the point with number i.
virtual void addLine(const QgsPointSequence &points, QgsInterpolator::SourceType lineType)=0
Adds a line (e.g.
virtual QList< int > pointsAroundEdge(double x, double y)=0
Returns a value list with the numbers of the four points, which would be affected by an edge swap.
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 'result'.
virtual int oppositePoint(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...
virtual int addPoint(const QgsPoint &point)=0
Adds a point to the triangulation.
virtual bool swapEdge(double x, double y)=0
Reads the content of a taff-file.
virtual void setTriangleInterpolator(TriangleInterpolator *interpolator)=0
Sets an interpolator object.
virtual bool triangleVertices(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...
virtual double xMin() const =0
Returns the smallest x-coordinate value of the bounding box.
virtual QList< int > surroundingTriangles(int pointno)=0
Returns a value list with the information of the triangles surrounding (counterclockwise) a point.
virtual void setForcedCrossBehavior(QgsTriangulation::ForcedCrossBehavior b)=0
Draws the points, edges and the forced lines.
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.
Decorator class for Triangulations (s.
Definition: TriDecorator.h:32
virtual void addTriangulation(QgsTriangulation *t)
Adds an association to a triangulation.
Definition: TriDecorator.h:76
QgsTriangulation * mTIN
Association with a Triangulation object.
Definition: TriDecorator.h:65
TriDecorator()=default
Constructor for TriDecorator.
This is an interface for interpolator classes for triangulations.
#define SIP_OUT
Definition: qgis_sip.h:58