QGIS API Documentation 3.35.0-Master (f6e073f0eed)
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qgscompoundcurve.h
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1/***************************************************************************
2 qgscompoundcurve.h
3 ---------------------
4 begin : September 2014
5 copyright : (C) 2014 by Marco Hugentobler
6 email : marco at sourcepole dot ch
7 ***************************************************************************/
8
9/***************************************************************************
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
15 * *
16 ***************************************************************************/
17
18#ifndef QGSCOMPOUNDCURVE_H
19#define QGSCOMPOUNDCURVE_H
20
21#include "qgis_core.h"
22#include "qgis_sip.h"
23#include "qgscurve.h"
24
30class CORE_EXPORT QgsCompoundCurve: public QgsCurve
31{
32 public:
34 QgsCompoundCurve( const QgsCompoundCurve &curve );
36 ~QgsCompoundCurve() override;
37
38#ifndef SIP_RUN
39 private:
40 bool fuzzyHelper( const QgsAbstractGeometry &other, double epsilon, bool useDistance ) const
41 {
42 const QgsCompoundCurve *otherCurve = qgsgeometry_cast< const QgsCompoundCurve * >( &other );
43 if ( !otherCurve )
44 return false;
45
46 if ( mWkbType != otherCurve->mWkbType )
47 return false;
48
49 if ( mCurves.size() != otherCurve->mCurves.size() )
50 return false;
51
52 for ( int i = 0; i < mCurves.size(); ++i )
53 {
54 if ( useDistance )
55 {
56 if ( !( *mCurves.at( i ) ).fuzzyDistanceEqual( *otherCurve->mCurves.at( i ), epsilon ) )
57 {
58 return false;
59 }
60
61 }
62 else
63 {
64 if ( !( *mCurves.at( i ) ).fuzzyEqual( *otherCurve->mCurves.at( i ), epsilon ) )
65 {
66 return false;
67 }
68
69 }
70 }
71
72 return true;
73 }
74#endif
75 public:
76 bool fuzzyEqual( const QgsAbstractGeometry &other, double epsilon = 1e-8 ) const override SIP_HOLDGIL
77 {
78 return fuzzyHelper( other, epsilon, false );
79 }
80 bool fuzzyDistanceEqual( const QgsAbstractGeometry &other, double epsilon = 1e-8 ) const override SIP_HOLDGIL
81 {
82 return fuzzyHelper( other, epsilon, true );
83 }
84
85 bool equals( const QgsCurve &other ) const override
86 {
87 return fuzzyEqual( other, 1e-8 );
88 }
89
90
91 QString geometryType() const override SIP_HOLDGIL;
92 int dimension() const override SIP_HOLDGIL;
93 QgsCompoundCurve *clone() const override SIP_FACTORY;
94 void clear() override;
95
96 bool fromWkb( QgsConstWkbPtr &wkb ) override;
97 bool fromWkt( const QString &wkt ) override;
98
99 int wkbSize( QgsAbstractGeometry::WkbFlags flags = QgsAbstractGeometry::WkbFlags() ) const override;
100 QByteArray asWkb( QgsAbstractGeometry::WkbFlags flags = QgsAbstractGeometry::WkbFlags() ) const override;
101 QString asWkt( int precision = 17 ) const override;
102 QDomElement asGml2( QDomDocument &doc, int precision = 17, const QString &ns = "gml", QgsAbstractGeometry::AxisOrder axisOrder = QgsAbstractGeometry::AxisOrder::XY ) const override;
103 QDomElement asGml3( QDomDocument &doc, int precision = 17, const QString &ns = "gml", QgsAbstractGeometry::AxisOrder axisOrder = QgsAbstractGeometry::AxisOrder::XY ) const override;
104 json asJsonObject( int precision = 17 ) const override SIP_SKIP;
105
106 //curve interface
107 double length() const override SIP_HOLDGIL;
108 QgsPoint startPoint() const override SIP_HOLDGIL;
109 QgsPoint endPoint() const override SIP_HOLDGIL;
110 void points( QgsPointSequence &pts SIP_OUT ) const override;
111 int numPoints() const override SIP_HOLDGIL;
112 bool isEmpty() const override SIP_HOLDGIL;
113 bool isValid( QString &error SIP_OUT, Qgis::GeometryValidityFlags flags = Qgis::GeometryValidityFlags() ) const override;
114 int indexOf( const QgsPoint &point ) const final;
115
122 QgsLineString *curveToLine( double tolerance = M_PI_2 / 90, SegmentationToleranceType toleranceType = MaximumAngle ) const override SIP_FACTORY;
123
124 QgsCompoundCurve *snappedToGrid( double hSpacing, double vSpacing, double dSpacing = 0, double mSpacing = 0 ) const override SIP_FACTORY;
125 bool removeDuplicateNodes( double epsilon = 4 * std::numeric_limits<double>::epsilon(), bool useZValues = false ) override;
126 bool boundingBoxIntersects( const QgsBox3D &box3d ) const override SIP_HOLDGIL;
127 const QgsAbstractGeometry *simplifiedTypeRef() const override SIP_HOLDGIL;
128
132 int nCurves() const SIP_HOLDGIL { return mCurves.size(); }
133
137 const QgsCurve *curveAt( int i ) const SIP_HOLDGIL;
138
148 void addCurve( QgsCurve *c SIP_TRANSFER, bool extendPrevious = false );
149
154 void removeCurve( int i );
155
159 void addVertex( const QgsPoint &pt );
160
167 void condenseCurves();
168
177 bool toggleCircularAtVertex( QgsVertexId position );
178
179 void draw( QPainter &p ) const override;
181 void transform( const QTransform &t, double zTranslate = 0.0, double zScale = 1.0, double mTranslate = 0.0, double mScale = 1.0 ) override;
182 void addToPainterPath( QPainterPath &path ) const override;
183 void drawAsPolygon( QPainter &p ) const override;
184 bool insertVertex( QgsVertexId position, const QgsPoint &vertex ) override;
185 bool moveVertex( QgsVertexId position, const QgsPoint &newPos ) override;
186 bool deleteVertex( QgsVertexId position ) override;
187 double closestSegment( const QgsPoint &pt, QgsPoint &segmentPt SIP_OUT, QgsVertexId &vertexAfter SIP_OUT, int *leftOf SIP_OUT = nullptr, double epsilon = 4 * std::numeric_limits<double>::epsilon() ) const override;
188 bool pointAt( int node, QgsPoint &point, Qgis::VertexType &type ) const override;
189 void sumUpArea( double &sum SIP_OUT ) const override;
190
192 void close();
193
194 bool hasCurvedSegments() const override;
195 double vertexAngle( QgsVertexId vertex ) const override;
196 double segmentLength( QgsVertexId startVertex ) const override;
197 QgsCompoundCurve *reversed() const override SIP_FACTORY;
198 QgsPoint *interpolatePoint( double distance ) const override SIP_FACTORY;
199 QgsCompoundCurve *curveSubstring( double startDistance, double endDistance ) const override SIP_FACTORY;
200
201 bool addZValue( double zValue = 0 ) override;
202 bool addMValue( double mValue = 0 ) override;
203
204 bool dropZValue() override;
205 bool dropMValue() override;
206 void swapXy() override;
207
208 double xAt( int index ) const override SIP_HOLDGIL;
209 double yAt( int index ) const override SIP_HOLDGIL;
210 double zAt( int index ) const override SIP_HOLDGIL;
211 double mAt( int index ) const override SIP_HOLDGIL;
212
213 bool transform( QgsAbstractGeometryTransformer *transformer, QgsFeedback *feedback = nullptr ) override;
214 void scroll( int firstVertexIndex ) final;
215
216#ifndef SIP_RUN
217 void filterVertices( const std::function< bool( const QgsPoint & ) > &filter ) override;
218 void transformVertices( const std::function< QgsPoint( const QgsPoint & ) > &transform ) override;
219 std::tuple< std::unique_ptr< QgsCurve >, std::unique_ptr< QgsCurve > > splitCurveAtVertex( int index ) const final;
220
227 inline static const QgsCompoundCurve *cast( const QgsAbstractGeometry *geom )
228 {
230 return static_cast<const QgsCompoundCurve *>( geom );
231 return nullptr;
232 }
233#endif
234
236
237#ifdef SIP_RUN
238 SIP_PYOBJECT __repr__();
239 % MethodCode
240 QString wkt = sipCpp->asWkt();
241 if ( wkt.length() > 1000 )
242 wkt = wkt.left( 1000 ) + QStringLiteral( "..." );
243 QString str = QStringLiteral( "<QgsCompoundCurve: %1>" ).arg( wkt );
244 sipRes = PyUnicode_FromString( str.toUtf8().constData() );
245 % End
246#endif
247
248 protected:
249
250 int compareToSameClass( const QgsAbstractGeometry *other ) const final;
251 QgsBox3D calculateBoundingBox3D() const override;
252
253 private:
254 QVector< QgsCurve * > mCurves;
255
260 QVector< QPair<int, QgsVertexId> > curveVertexId( QgsVertexId id ) const;
261
262};
263
264// clazy:excludeall=qstring-allocations
265
266#endif // QGSCOMPOUNDCURVE_H
The Qgis class provides global constants for use throughout the application.
Definition qgis.h:54
@ CompoundCurve
CompoundCurve.
TransformDirection
Flags for raster layer temporal capabilities.
Definition qgis.h:2169
@ Forward
Forward transform (from source to destination)
An abstract base class for classes which transform geometries by transforming input points to output ...
Abstract base class for all geometries.
virtual QgsBox3D calculateBoundingBox3D() const
Calculates the minimal 3D bounding box for the geometry.
virtual void draw(QPainter &p) const =0
Draws the geometry using the specified QPainter.
virtual void transformVertices(const std::function< QgsPoint(const QgsPoint &) > &transform)
Transforms the vertices from the geometry in place, applying the transform function to every vertex.
virtual QString geometryType() const =0
Returns a unique string representing the geometry type.
virtual QgsAbstractGeometry * createEmptyWithSameType() const =0
Creates a new geometry with the same class and same WKB type as the original and transfers ownership.
QgsAbstractGeometry & operator=(const QgsAbstractGeometry &geom)
Qgis::WkbType wkbType() const
Returns the WKB type of the geometry.
virtual bool fuzzyEqual(const QgsAbstractGeometry &other, double epsilon=1e-8) const =0
Performs fuzzy comparison between this geometry and other using an epsilon.
virtual void transform(const QgsCoordinateTransform &ct, Qgis::TransformDirection d=Qgis::TransformDirection::Forward, bool transformZ=false)=0
Transforms the geometry using a coordinate transform.
virtual void filterVertices(const std::function< bool(const QgsPoint &) > &filter)
Filters the vertices from the geometry in place, removing any which do not return true for the filter...
virtual int compareToSameClass(const QgsAbstractGeometry *other) const =0
Compares to an other geometry of the same class, and returns a integer for sorting of the two geometr...
A 3-dimensional box composed of x, y, z coordinates.
Definition qgsbox3d.h:43
Compound curve geometry type.
bool fuzzyEqual(const QgsAbstractGeometry &other, double epsilon=1e-8) const override
Performs fuzzy comparison between this geometry and other using an epsilon.
bool fuzzyDistanceEqual(const QgsAbstractGeometry &other, double epsilon=1e-8) const override
Performs fuzzy distance comparison between this geometry and other using an epsilon.
bool equals(const QgsCurve &other) const override
Checks whether this curve exactly equals another curve.
static const QgsCompoundCurve * cast(const QgsAbstractGeometry *geom)
Cast the geom to a QgsCompoundCurve.
A const WKB pointer.
Definition qgswkbptr.h:138
Class for doing transforms between two map coordinate systems.
Custom exception class for Coordinate Reference System related exceptions.
Abstract base class for curved geometry type.
Definition qgscurve.h:35
virtual std::tuple< std::unique_ptr< QgsCurve >, std::unique_ptr< QgsCurve > > splitCurveAtVertex(int index) const =0
Splits the curve at the specified vertex index, returning two curves which represent the portion of t...
Base class for feedback objects to be used for cancellation of something running in a worker thread.
Definition qgsfeedback.h:44
Line string geometry type, with support for z-dimension and m-values.
Point geometry type, with support for z-dimension and m-values.
Definition qgspoint.h:49
static Qgis::WkbType flatType(Qgis::WkbType type)
Returns the flat type for a WKB type.
As part of the API refactoring and improvements which landed in the Processing API was substantially reworked from the x version This was done in order to allow much of the underlying Processing framework to be ported into c
#define str(x)
Definition qgis.cpp:38
#define SIP_SKIP
Definition qgis_sip.h:126
#define SIP_TRANSFER
Definition qgis_sip.h:36
#define SIP_OUT
Definition qgis_sip.h:58
#define SIP_HOLDGIL
Definition qgis_sip.h:171
#define SIP_FACTORY
Definition qgis_sip.h:76
#define SIP_THROW(name,...)
Definition qgis_sip.h:203
QVector< QgsPoint > QgsPointSequence
double closestSegment(const QgsPolylineXY &pl, const QgsPointXY &pt, int &vertexAfter, double epsilon)
Definition qgstracer.cpp:69
int precision
Utility class for identifying a unique vertex within a geometry.
Definition qgsvertexid.h:30