qgspoint.h

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/***************************************************************************
                         qgspointv2.h
                         --------------
    begin                : September 2014
    copyright            : (C) 2014 by Marco Hugentobler
    email                : marco at sourcepole dot ch
 ***************************************************************************/
 
/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSPOINT_H
#define QGSPOINT_H
 
#include "qgis_core.h"
#include "qgis_sip.h"
#include "qgsabstractgeometry.h"
#include "qgsgeometryutils_base.h"
#include "qgsrectangle.h"
 
#include <QString>
 
using namespace Qt::StringLiterals;
 
/***************************************************************************
 * This class is considered CRITICAL and any change MUST be accompanied with
 * full unit tests in testqgsgeometry.cpp.
 * See details in QEP #17
 ****************************************************************************/

class CORE_EXPORT QgsPoint : public QgsAbstractGeometry
{
    Q_GADGET
 
    Q_PROPERTY( double x READ x WRITE setX )
    Q_PROPERTY( double y READ y WRITE setY )
    Q_PROPERTY( double z READ z WRITE setZ )
    Q_PROPERTY( double m READ m WRITE setM )
 
  public:
#ifndef SIP_RUN
    QgsPoint(
      double x = std::numeric_limits<double>::quiet_NaN(),
      double y = std::numeric_limits<double>::quiet_NaN(),
      double z = std::numeric_limits<double>::quiet_NaN(),
      double m = std::numeric_limits<double>::quiet_NaN(),
      Qgis::WkbType wkbType = Qgis::WkbType::Unknown
    );
#else
    // clang-format off
    QgsPoint( SIP_PYOBJECT x SIP_TYPEHINT( Optional[Union[QgsPoint, QPointF, float]] ) = Py_None, SIP_PYOBJECT y SIP_TYPEHINT( Optional[float] ) = Py_None, SIP_PYOBJECT z SIP_TYPEHINT( Optional[float] ) = Py_None, SIP_PYOBJECT m SIP_TYPEHINT( Optional[float] ) = Py_None, SIP_PYOBJECT wkbType SIP_TYPEHINT( Optional[int] ) = Py_None ) [( double x = 0.0, double y = 0.0, double z = 0.0, double m = 0.0, Qgis::WkbType wkbType = Qgis::WkbType::Unknown )];
    % MethodCode
    if ( sipCanConvertToType( a0, sipType_QgsPointXY, SIP_NOT_NONE ) && a1 == Py_None && a2 == Py_None && a3 == Py_None && a4 == Py_None )
    {
      int state;
      sipIsErr = 0;
 
      QgsPointXY *p = reinterpret_cast<QgsPointXY *>( sipConvertToType( a0, sipType_QgsPointXY, 0, SIP_NOT_NONE, &state, &sipIsErr ) );
      if ( !sipIsErr )
      {
        sipCpp = new sipQgsPoint( QgsPoint( *p ) );
      }
      sipReleaseType( p, sipType_QgsPointXY, state );
    }
    else if ( sipCanConvertToType( a0, sipType_QPointF, SIP_NOT_NONE ) && a1 == Py_None && a2 == Py_None && a3 == Py_None && a4 == Py_None )
    {
      int state;
      sipIsErr = 0;
 
      QPointF *p = reinterpret_cast<QPointF *>( sipConvertToType( a0, sipType_QPointF, 0, SIP_NOT_NONE, &state, &sipIsErr ) );
      if ( !sipIsErr )
      {
        sipCpp = new sipQgsPoint( QgsPoint( *p ) );
      }
      sipReleaseType( p, sipType_QPointF, state );
    }
    else if (
      ( a0 == Py_None || PyFloat_AsDouble( a0 ) != -1.0 || !PyErr_Occurred() ) &&
      ( a1 == Py_None || PyFloat_AsDouble( a1 ) != -1.0 || !PyErr_Occurred() ) &&
      ( a2 == Py_None || PyFloat_AsDouble( a2 ) != -1.0 || !PyErr_Occurred() ) &&
      ( a3 == Py_None || PyFloat_AsDouble( a3 ) != -1.0 || !PyErr_Occurred() ) )
    {
      double x = a0 == Py_None ? std::numeric_limits<double>::quiet_NaN() : PyFloat_AsDouble( a0 );
      double y = a1 == Py_None ? std::numeric_limits<double>::quiet_NaN() : PyFloat_AsDouble( a1 );
      double z = a2 == Py_None ? std::numeric_limits<double>::quiet_NaN() : PyFloat_AsDouble( a2 );
      double m = a3 == Py_None ? std::numeric_limits<double>::quiet_NaN() : PyFloat_AsDouble( a3 );
      Qgis::WkbType wkbType = a4 == Py_None ? Qgis::WkbType::Unknown : static_cast<Qgis::WkbType>( sipConvertToEnum( a4, sipType_Qgis_WkbType ) );
      sipCpp = new sipQgsPoint( QgsPoint( x, y, z, m, wkbType ) );
    }
    else // Invalid ctor arguments
    {
      PyErr_SetString( PyExc_TypeError, u"Invalid type in constructor arguments."_s.toUtf8().constData() );
      sipIsErr = 1;
    }
    % End
// clang-format on
#endif

    explicit QgsPoint( const QgsPointXY &p ) SIP_SKIP;

    explicit QgsPoint( QPointF p ) SIP_SKIP;

    explicit QgsPoint(
      Qgis::WkbType wkbType,
      double x = std::numeric_limits<double>::quiet_NaN(),
      double y = std::numeric_limits<double>::quiet_NaN(),
      double z = std::numeric_limits<double>::quiet_NaN(),
      double m = std::numeric_limits<double>::quiet_NaN()
    ) SIP_SKIP;

    explicit QgsPoint( const QVector3D &vect, double m = std::numeric_limits<double>::quiet_NaN() ) SIP_SKIP;

    explicit QgsPoint( const QVector4D &vect ) SIP_SKIP;

    explicit QgsPoint( const QgsVector3D &vect, double m = std::numeric_limits<double>::quiet_NaN() ) SIP_SKIP;
 
#ifndef SIP_RUN
  private:
    bool fuzzyHelper(
      double epsilon,
      const QgsAbstractGeometry &other,
      bool is3DFlag,
      bool isMeasureFlag,
      std::function<bool( double, double, double, double, double, double, double, double, double )> comparator3DMeasure,
      std::function<bool( double, double, double, double, double, double, double )> comparator3D,
      std::function<bool( double, double, double, double, double, double, double )> comparatorMeasure,
      std::function<bool( double, double, double, double, double )> comparator2D
    ) const
    {
      const QgsPoint *pt = qgsgeometry_cast< const QgsPoint * >( &other );
      if ( !pt )
        return false;
 
      const Qgis::WkbType type = wkbType();
 
      if ( pt->wkbType() != type )
        return false;
 
      if ( is3DFlag && isMeasureFlag )
      {
        return comparator3DMeasure( epsilon, mX, mY, mZ, mM, pt->x(), pt->y(), pt->z(), pt->m() );
      }
      else if ( is3DFlag )
      {
        return comparator3D( epsilon, mX, mY, mZ, pt->x(), pt->y(), pt->z() );
      }
      else if ( isMeasureFlag )
      {
        return comparatorMeasure( epsilon, mX, mY, mM, pt->x(), pt->y(), pt->m() );
      }
      return comparator2D( epsilon, mX, mY, pt->x(), pt->y() );
    }
#endif // !SIP_RUN
 
  public:
    // clang-format off
    bool fuzzyEqual( const QgsAbstractGeometry &other, double epsilon = 1e-8 ) const override SIP_HOLDGIL
      // clang-format on
    {
      return fuzzyHelper(
               epsilon,
               other,
               is3D(),
               isMeasure(),
               []( double epsilon, double x1, double y1, double z1, double m1,
                   double x2, double y2, double z2, double m2 )
      {
        return QgsGeometryUtilsBase::fuzzyEqual( epsilon, x1, y1, z1, m1, x2, y2, z2, m2 );
      },
      []( double epsilon, double x1, double y1, double z1,
          double x2, double y2, double z2 )
      {
        return QgsGeometryUtilsBase::fuzzyEqual( epsilon, x1, y1, z1, x2, y2, z2 );
      },
      []( double epsilon, double x1, double y1, double m1,
          double x2, double y2, double m2 )
      {
        return QgsGeometryUtilsBase::fuzzyEqual( epsilon, x1, y1, m1, x2, y2, m2 );
      },
      []( double epsilon, double x1, double y1,
          double x2, double y2 )
      {
        return QgsGeometryUtilsBase::fuzzyEqual( epsilon, x1, y1, x2, y2 );
      } );
    }
 
    bool fuzzyDistanceEqual( const QgsAbstractGeometry &other, double epsilon = 1e-8 ) const override SIP_HOLDGIL
    {
      return fuzzyHelper(
               epsilon,
               other,
               is3D(),
               isMeasure(),
               []( double epsilon, double x1, double y1, double z1, double m1,
                   double x2, double y2, double z2, double m2 )
      {
        return QgsGeometryUtilsBase::fuzzyDistanceEqual( epsilon, x1, y1, z1, m1, x2, y2, z2, m2 );
      },
      []( double epsilon, double x1, double y1, double z1,
          double x2, double y2, double z2 )
      {
        return QgsGeometryUtilsBase::fuzzyDistanceEqual( epsilon, x1, y1, z1, x2, y2, z2 );
      },
      []( double epsilon, double x1, double y1, double m1,
          double x2, double y2, double m2 )
      {
        return QgsGeometryUtilsBase::fuzzyDistanceEqual( epsilon, x1, y1, m1, x2, y2, m2 );
      },
      []( double epsilon, double x1, double y1,
          double x2, double y2 )
      {
        return QgsGeometryUtilsBase::fuzzyDistanceEqual( epsilon, x1, y1, x2, y2 );
      } );
    }
 
    bool operator==( const QgsAbstractGeometry &other ) const override SIP_HOLDGIL
    {
      return fuzzyEqual( other, 1e-8 );
    }
 
    bool operator!=( const QgsAbstractGeometry &other ) const override SIP_HOLDGIL
    {
      return !fuzzyEqual( other, 1e-8 );
    }

    double x() const SIP_HOLDGIL { return mX; }

    double y() const SIP_HOLDGIL { return mY; }

    double z() const SIP_HOLDGIL { return mZ; }

    double m() const SIP_HOLDGIL { return mM; }

    double &rx() SIP_SKIP { clearCache(); return mX; }

    double &ry() SIP_SKIP { clearCache(); return mY; }

    double &rz() SIP_SKIP { clearCache(); return mZ; }

    double &rm() SIP_SKIP { clearCache(); return mM; }

    void setX( double x ) SIP_HOLDGIL
    {
      clearCache();
      mX = x;
    }

    void setY( double y ) SIP_HOLDGIL
    {
      clearCache();
      mY = y;
    }

    void setZ( double z ) SIP_HOLDGIL
    {
      if ( !is3D() )
        return;
      clearCache();
      mZ = z;
    }

    void setM( double m ) SIP_HOLDGIL
    {
      if ( !isMeasure() )
        return;
      clearCache();
      mM = m;
    }

    QPointF toQPointF() const SIP_HOLDGIL
    {
      return QPointF( mX, mY );
    }

    QVector3D toVector3D() const SIP_HOLDGIL
    {
      return QVector3D( static_cast<float>( mX ), static_cast<float>( mY ), static_cast<float>( mZ ) ); //
    }

    QVector4D toVector4D() const SIP_HOLDGIL
    {
      return QVector4D( static_cast<float>( mX ), static_cast<float>( mY ), static_cast<float>( mZ ), static_cast<float>( mM ) );
    }

    QgsVector3D toQgsVector3D() const SIP_HOLDGIL
    {
      return QgsVector3D( mX, mY, mZ );
    }

    double distance( double x, double y ) const SIP_HOLDGIL
    {
      return QgsGeometryUtilsBase::distance2D( mX, mY, x, y );
    }

    double distance( const QgsPoint &other ) const SIP_HOLDGIL
    {
      return QgsGeometryUtilsBase::distance2D( mX, mY, other.x(), other.y() );
    }

    double distanceSquared( double x, double y ) const SIP_HOLDGIL
    {
      return QgsGeometryUtilsBase::sqrDistance2D( mX, mY, x, y );
    }

    double distanceSquared( const QgsPoint &other ) const SIP_HOLDGIL
    {
      return QgsGeometryUtilsBase::sqrDistance2D( mX, mY, other.x(), other.y() );
    }

    double distance3D( double x, double y, double z ) const SIP_HOLDGIL
    {
      if ( is3D() || !std::isnan( z ) )
      {
        return QgsGeometryUtilsBase::distance3D( mX, mY, mZ, x, y, z );
      }
      return QgsGeometryUtilsBase::distance2D( mX, mY, x, y );
    }

    double distance3D( const QgsPoint &other ) const SIP_HOLDGIL
    {
      if ( is3D() || other.is3D() )
      {
        return QgsGeometryUtilsBase::distance3D( mX, mY, mZ, other.x(), other.y(), other.z() );
      }
      return QgsGeometryUtilsBase::distance2D( mX, mY, other.x(), other.y() );
    }

    double distanceSquared3D( double x, double y, double z ) const SIP_HOLDGIL
    {
      if ( is3D() || !std::isnan( z ) )
      {
        return QgsGeometryUtilsBase::sqrDistance3D( mX, mY, mZ, x, y, z );
      }
      return QgsGeometryUtilsBase::sqrDistance2D( mX, mY, x, y );
    }

    double distanceSquared3D( const QgsPoint &other ) const SIP_HOLDGIL
    {
      if ( is3D() || other.is3D() )
      {
        return QgsGeometryUtilsBase::sqrDistance3D( mX, mY, mZ, other.x(), other.y(), other.z() );
      }
      return QgsGeometryUtilsBase::sqrDistance2D( mX, mY, other.x(), other.y() );
    }

    double azimuth( const QgsPoint &other ) const SIP_HOLDGIL;

    double inclination( const QgsPoint &other ) const SIP_HOLDGIL;

    QgsPoint project( double distance, double azimuth, double inclination = 90.0 ) const SIP_HOLDGIL;

    QgsVector operator-( const QgsPoint &p ) const SIP_HOLDGIL { return QgsVector( mX - p.mX, mY - p.mY ); }

    QgsPoint &operator+=( QgsVector v ) SIP_HOLDGIL { mX += v.x(); mY += v.y(); return *this; }

    QgsPoint &operator-=( QgsVector v ) SIP_HOLDGIL { mX -= v.x(); mY -= v.y(); return *this; }

    QgsPoint operator+( QgsVector v ) const SIP_HOLDGIL { QgsPoint r = *this; r.rx() += v.x(); r.ry() += v.y(); return r; }

    QgsPoint operator-( QgsVector v ) const SIP_HOLDGIL { QgsPoint r = *this; r.rx() -= v.x(); r.ry() -= v.y(); return r; }
 
    //implementation of inherited methods
    void normalize() final SIP_HOLDGIL;
    bool isEmpty() const override SIP_HOLDGIL;
    QgsBox3D boundingBox3D() const override SIP_HOLDGIL;
    QString geometryType() const override SIP_HOLDGIL;
    int dimension() const override SIP_HOLDGIL;
    QgsPoint *clone() const override SIP_FACTORY;
    QgsPoint *snappedToGrid( double hSpacing, double vSpacing, double dSpacing = 0, double mSpacing = 0, bool removeRedundantPoints = false ) const override SIP_FACTORY;
    QgsPoint *simplifyByDistance( double tolerance ) const override SIP_FACTORY;
    bool removeDuplicateNodes( double epsilon = 4 * std::numeric_limits<double>::epsilon(), bool useZValues = false ) override;
    void clear() override;
    bool fromWkb( QgsConstWkbPtr &wkb ) override;
    bool fromWkt( const QString &wkt ) override;
    int wkbSize( QgsAbstractGeometry::WkbFlags flags = QgsAbstractGeometry::WkbFlags() ) const override;
    QByteArray asWkb( QgsAbstractGeometry::WkbFlags = QgsAbstractGeometry::WkbFlags() ) const override;
    QString asWkt( int precision = 17 ) const override;
    QDomElement asGml2( QDomDocument &doc, int precision = 17, const QString &ns = "gml", QgsAbstractGeometry::AxisOrder axisOrder = QgsAbstractGeometry::AxisOrder::XY ) const override;
    QDomElement asGml3( QDomDocument &doc, int precision = 17, const QString &ns = "gml", QgsAbstractGeometry::AxisOrder axisOrder = QgsAbstractGeometry::AxisOrder::XY ) const override;
    json asJsonObject( int precision = 17 ) const override SIP_SKIP;
    QString asKml( int precision = 17 ) const override;
    void draw( QPainter &p ) const override;
    QPainterPath asQPainterPath() const override;
    void transform( const QgsCoordinateTransform &ct, Qgis::TransformDirection d = Qgis::TransformDirection::Forward, bool transformZ = false ) override SIP_THROW( QgsCsException );
    void transform( const QTransform &t, double zTranslate = 0.0, double zScale = 1.0, double mTranslate = 0.0, double mScale = 1.0 ) override;
    QgsCoordinateSequence coordinateSequence() const override;
    int nCoordinates() const override SIP_HOLDGIL;
    int vertexNumberFromVertexId( QgsVertexId id ) const override;
    QgsAbstractGeometry *boundary() const override SIP_FACTORY;
    bool isValid( QString &error SIP_OUT, Qgis::GeometryValidityFlags flags = Qgis::GeometryValidityFlags() ) const override SIP_HOLDGIL;
 
    //low-level editing
    bool insertVertex( QgsVertexId position, const QgsPoint &vertex ) override;
    bool moveVertex( QgsVertexId position, const QgsPoint &newPos ) override;
    bool deleteVertex( QgsVertexId position ) override;
 
    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;
    bool nextVertex( QgsVertexId &id, QgsPoint &vertex SIP_OUT ) const override;
    void adjacentVertices( QgsVertexId vertex, QgsVertexId &previousVertex SIP_OUT, QgsVertexId &nextVertex SIP_OUT ) const override;

    double vertexAngle( QgsVertexId vertex ) const override;
 
    int vertexCount( int /*part*/ = 0, int /*ring*/ = 0 ) const override;
    int ringCount( int /*part*/ = 0 ) const override;
    int partCount() const override;
    QgsPoint vertexAt( QgsVertexId /*id*/ ) const override;
    QgsPoint *toCurveType() const override SIP_FACTORY;
    double segmentLength( QgsVertexId startVertex ) const override;
    bool boundingBoxIntersects( const QgsRectangle &rectangle ) const override SIP_HOLDGIL;
    bool boundingBoxIntersects( const QgsBox3D &box3d ) const override SIP_HOLDGIL;
 
    bool addZValue( double zValue = 0 ) override;
    bool addMValue( double mValue = 0 ) override;
    bool dropZValue() override;
    bool dropMValue() override;
    void swapXy() override;
    bool convertTo( Qgis::WkbType type ) override;
 
    bool transform( QgsAbstractGeometryTransformer *transformer, QgsFeedback *feedback = nullptr ) override;
 
#ifndef SIP_RUN
 
    void filterVertices( const std::function< bool( const QgsPoint & ) > &filter ) override;
    void transformVertices( const std::function< QgsPoint( const QgsPoint & ) > &transform ) override;

    inline static const QgsPoint *cast( const QgsAbstractGeometry *geom )
    {
      if ( geom && QgsWkbTypes::flatType( geom->wkbType() ) == Qgis::WkbType::Point )
        return static_cast<const QgsPoint *>( geom );
      return nullptr;
    }

    inline static QgsPoint *cast( QgsAbstractGeometry *geom )
    {
      if ( geom && QgsWkbTypes::flatType( geom->wkbType() ) == Qgis::WkbType::Point )
        return static_cast<QgsPoint *>( geom );
      return nullptr;
    }
#endif
 
    QgsPoint *createEmptyWithSameType() const override SIP_FACTORY;
 
#ifdef SIP_RUN
// clang-format off
    SIP_PYOBJECT __repr__();
    % MethodCode
    QString str = u"<QgsPoint: %1>"_s.arg( sipCpp->asWkt() );
    sipRes = PyUnicode_FromString( str.toUtf8().constData() );
    % End
// clang-format on
#endif
 
  protected:
 
    int compareToSameClass( const QgsAbstractGeometry *other ) const final;
    int childCount() const override;
    QgsPoint childPoint( int index ) const override;
 
  private:
    double mX;
    double mY;
    double mZ;
    double mM;
};
 
// clazy:excludeall=qstring-allocations
 
#endif // QGSPOINT_H