QGIS API Documentation 3.27.0-Master (75dc696944)
qgstriangle.h
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1/***************************************************************************
2 qgstriangle.h
3 -------------------
4 begin : January 2017
5 copyright : (C) 2017 by Loïc Bartoletti
6 email : lbartoletti at tuxfamily dot org
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 QGSTRIANGLE_H
19#define QGSTRIANGLE_H
20
21#include "qgis_core.h"
22#include "qgis_sip.h"
23#include "qgspolygon.h"
24#include "qgscircle.h"
25#include "qgslinestring.h"
26
33class CORE_EXPORT QgsTriangle : public QgsPolygon
34{
35 public:
36
41
48 QgsTriangle( const QgsPoint &p1, const QgsPoint &p2, const QgsPoint &p3 ) SIP_HOLDGIL;
49
56 explicit QgsTriangle( const QgsPointXY &p1, const QgsPointXY &p2, const QgsPointXY &p3 ) SIP_HOLDGIL;
57
64 explicit QgsTriangle( QPointF p1, QPointF p2, QPointF p3 ) SIP_HOLDGIL;
65
66 bool operator==( const QgsTriangle &other ) const SIP_HOLDGIL;
67 bool operator!=( const QgsTriangle &other ) const SIP_HOLDGIL;
68
69 QString geometryType() const override SIP_HOLDGIL;
70 QgsTriangle *clone() const override SIP_FACTORY;
71 void clear() override;
72
73 bool fromWkb( QgsConstWkbPtr &wkbPtr ) override;
74
75 bool fromWkt( const QString &wkt ) override;
76
77 // inherited: QString asWkt( int precision = 17 ) const;
78 // inherited (as a polygon): QDomElement asGML2( QDomDocument &doc, int precision = 17, const QString &ns = "gml" ) const;
79 QDomElement asGml3( QDomDocument &doc, int precision = 17, const QString &ns = "gml", QgsAbstractGeometry::AxisOrder axisOrder = QgsAbstractGeometry::AxisOrder::XY ) const override;
80
81 QgsPolygon *surfaceToPolygon() const override SIP_FACTORY;
82
83 QgsCurvePolygon *toCurveType() const override SIP_FACTORY;
84
86 void addInteriorRing( QgsCurve *ring SIP_TRANSFER ) override;
87
92 void setInteriorRings( const QVector< QgsCurve *> &rings ) = delete;
94 bool deleteVertex( QgsVertexId position ) override;
96 bool insertVertex( QgsVertexId position, const QgsPoint &vertex ) override;
97 bool moveVertex( QgsVertexId vId, const QgsPoint &newPos ) override;
98
99 void setExteriorRing( QgsCurve *ring SIP_TRANSFER ) override;
100
101 QgsCurve *boundary() const override SIP_FACTORY;
102
103 // inherited: double pointDistanceToBoundary( double x, double y ) const;
104
105
106#ifdef __clang__
107#pragma clang diagnostic push
108#pragma clang diagnostic ignored "-Woverloaded-virtual"
109#endif
110
116 QgsPoint vertexAt( int atVertex ) const SIP_HOLDGIL;
117#ifdef __clang__
118#pragma clang diagnostic pop
119#endif
120
136 QVector<double> lengths() const SIP_HOLDGIL;
137
153 QVector<double> angles() const SIP_HOLDGIL;
154
176 bool isDegenerate() const SIP_HOLDGIL;
177
196 bool isIsocele( double lengthTolerance = 0.0001 ) const SIP_HOLDGIL;
197
216 bool isEquilateral( double lengthTolerance = 0.0001 ) const SIP_HOLDGIL;
217
236 bool isRight( double angleTolerance = 0.0001 ) const SIP_HOLDGIL;
237
256 bool isScalene( double lengthTolerance = 0.0001 ) const SIP_HOLDGIL;
257
273 QVector<QgsLineString> altitudes() const SIP_HOLDGIL;
274
290 QVector<QgsLineString> medians() const SIP_HOLDGIL;
291
308 QVector<QgsLineString> bisectors( double lengthTolerance = 0.0001 ) const SIP_HOLDGIL;
309
325 QgsTriangle medial() const SIP_HOLDGIL;
326
343 QgsPoint orthocenter( double lengthTolerance = 0.0001 ) const SIP_HOLDGIL;
344
360 QgsPoint circumscribedCenter() const SIP_HOLDGIL;
361
377 double circumscribedRadius() const SIP_HOLDGIL;
378
394 QgsCircle circumscribedCircle() const SIP_HOLDGIL;
395
412 QgsPoint inscribedCenter() const SIP_HOLDGIL;
413
429 double inscribedRadius() const SIP_HOLDGIL;
430
446 QgsCircle inscribedCircle() const SIP_HOLDGIL;
447
448#ifndef SIP_RUN
449
457 inline static const QgsTriangle *cast( const QgsAbstractGeometry *geom )
458 {
459 if ( geom && QgsWkbTypes::flatType( geom->wkbType() ) == QgsWkbTypes::Triangle )
460 return static_cast<const QgsTriangle *>( geom );
461 return nullptr;
462 }
463#endif
464
466
467
468};
469#endif // QGSTRIANGLE_H
Abstract base class for all geometries.
AxisOrder
Axis order for GML generation.
QgsWkbTypes::Type wkbType() const SIP_HOLDGIL
Returns the WKB type of the geometry.
Circle geometry type.
Definition: qgscircle.h:44
A const WKB pointer.
Definition: qgswkbptr.h:138
Curve polygon geometry type.
bool moveVertex(QgsVertexId position, const QgsPoint &newPos) override
Moves a vertex within the geometry.
bool operator!=(const QgsAbstractGeometry &other) const override
QgsPoint vertexAt(QgsVertexId id) const override
Returns the point corresponding to a specified vertex id.
bool insertVertex(QgsVertexId position, const QgsPoint &vertex) override
Inserts a vertex into the geometry.
bool fromWkt(const QString &wkt) override
Sets the geometry from a WKT string.
bool deleteVertex(QgsVertexId position) override
Deletes a vertex within the geometry.
QDomElement asGml3(QDomDocument &doc, int precision=17, const QString &ns="gml", QgsAbstractGeometry::AxisOrder axisOrder=QgsAbstractGeometry::AxisOrder::XY) const override
Returns a GML3 representation of the geometry.
bool operator==(const QgsAbstractGeometry &other) const override
Abstract base class for curved geometry type.
Definition: qgscurve.h:36
Line string geometry type, with support for z-dimension and m-values.
Definition: qgslinestring.h:45
A class to represent a 2D point.
Definition: qgspointxy.h:59
Point geometry type, with support for z-dimension and m-values.
Definition: qgspoint.h:49
Polygon geometry type.
Definition: qgspolygon.h:34
QgsCurvePolygon * toCurveType() const override
Returns the geometry converted to the more generic curve type QgsCurvePolygon.
Definition: qgspolygon.cpp:316
void setExteriorRing(QgsCurve *ring) override
Sets the exterior ring of the polygon.
Definition: qgspolygon.cpp:219
void addInteriorRing(QgsCurve *ring) override
Adds an interior ring to the geometry (takes ownership)
Definition: qgspolygon.cpp:188
QgsPolygon * clone() const override
Clones the geometry by performing a deep copy.
Definition: qgspolygon.cpp:54
void clear() override
Clears the geometry, ie reset it to a null geometry.
Definition: qgspolygon.cpp:59
QgsAbstractGeometry * boundary() const override
Returns the closure of the combinatorial boundary of the geometry (ie the topological boundary of the...
Definition: qgspolygon.cpp:254
QgsPolygon * createEmptyWithSameType() const override
Creates a new geometry with the same class and same WKB type as the original and transfers ownership.
Definition: qgspolygon.cpp:47
QString geometryType() const override SIP_HOLDGIL
Returns a unique string representing the geometry type.
Definition: qgspolygon.cpp:42
bool fromWkb(QgsConstWkbPtr &wkb) override
Sets the geometry from a WKB string.
Definition: qgspolygon.cpp:65
QgsPolygon * surfaceToPolygon() const override
Gets a polygon representation of this surface.
Definition: qgspolygon.cpp:311
Triangle geometry type.
Definition: qgstriangle.h:34
static const QgsTriangle * cast(const QgsAbstractGeometry *geom)
Cast the geom to a QgsTriangle.
Definition: qgstriangle.h:457
void setInteriorRings(const QVector< QgsCurve * > &rings)=delete
Inherited method not used.
static Type flatType(Type type) SIP_HOLDGIL
Returns the flat type for a WKB type.
Definition: qgswkbtypes.h:732
#define SIP_TRANSFER
Definition: qgis_sip.h:36
#define SIP_HOLDGIL
Definition: qgis_sip.h:166
#define SIP_FACTORY
Definition: qgis_sip.h:76
int precision
Utility class for identifying a unique vertex within a geometry.
Definition: qgsvertexid.h:31