/src/gdal/ogr/ogrmulticurve.cpp

Source
/******************************************************************************
 *
 * Project:  OpenGIS Simple Features Reference Implementation
 * Purpose:  The OGRMultiCurve class.
 * Author:   Even Rouault <even dot rouault at spatialys dot com>
 *
 ******************************************************************************
 * Copyright (c) 2014, Even Rouault <even dot rouault at spatialys dot com>
 *
 * SPDX-License-Identifier: MIT
 ****************************************************************************/

#include "cpl_port.h"
#include "ogr_geometry.h"

#include <cstddef>

#include "cpl_error.h"
#include "ogr_api.h"
#include "ogr_core.h"
#include "ogr_p.h"

/************************************************************************/
/*                OGRMultiCurve( const OGRMultiCurve& )                 */
/************************************************************************/

/**
 * \brief Copy constructor.
 */

OGRMultiCurve::OGRMultiCurve(const OGRMultiCurve &) = default;

/************************************************************************/
/*                   operator=( const OGRMultiCurve&)                   */
/************************************************************************/

/**
 * \brief Assignment operator.
 */

OGRMultiCurve &OGRMultiCurve::operator=(const OGRMultiCurve &other)
{
    if (this != &other)
    {
        OGRGeometryCollection::operator=(other);
    }
    return *this;
}

/************************************************************************/
/*                               clone()                                */
/************************************************************************/

OGRMultiCurve *OGRMultiCurve::clone() const

{
    auto ret = new (std::nothrow) OGRMultiCurve(*this);
    if (ret)
    {
        if (ret->WkbSize() != WkbSize())
        {
            delete ret;
            ret = nullptr;
        }
    }
    return ret;
}

/************************************************************************/
/*                          getGeometryType()                           */
/************************************************************************/

OGRwkbGeometryType OGRMultiCurve::getGeometryType() const

{
    if ((flags & OGR_G_3D) && (flags & OGR_G_MEASURED))
        return wkbMultiCurveZM;
    else if (flags & OGR_G_MEASURED)
        return wkbMultiCurveM;
    else if (flags & OGR_G_3D)
        return wkbMultiCurveZ;
    else
        return wkbMultiCurve;
}

/************************************************************************/
/*                            getDimension()                            */
/************************************************************************/

int OGRMultiCurve::getDimension() const

{
    return 1;
}

/************************************************************************/
/*                          getGeometryName()                           */
/************************************************************************/

const char *OGRMultiCurve::getGeometryName() const

{
    return "MULTICURVE";
}

/************************************************************************/
/*                        isCompatibleSubType()                         */
/************************************************************************/

bool OGRMultiCurve::isCompatibleSubType(OGRwkbGeometryType eGeomType) const
{
    return CPL_TO_BOOL(OGR_GT_IsCurve(eGeomType));
}

/*! @cond Doxygen_Suppress */
/************************************************************************/
/*                      addCurveDirectlyFromWkt()                       */
/************************************************************************/

OGRErr OGRMultiCurve::addCurveDirectlyFromWkt(OGRGeometry *poSelf,
                                              OGRCurve *poCurve)
{
    return poSelf->toMultiCurve()->addGeometryDirectly(poCurve);
}

/*! @endcond */

/************************************************************************/
/*                           importFromWkt()                            */
/*                                                                      */
/*      Instantiate from well known text format.                        */
/************************************************************************/

OGRErr OGRMultiCurve::importFromWkt(const char **ppszInput)

{
    const bool bIsMultiCurve = wkbFlatten(getGeometryType()) == wkbMultiCurve;
    return importCurveCollectionFromWkt(ppszInput,
                                        TRUE,           // bAllowEmptyComponent.
                                        bIsMultiCurve,  // bAllowLineString.
                                        bIsMultiCurve,  // bAllowCurve.
                                        bIsMultiCurve,  // bAllowCompoundCurve.
                                        addCurveDirectlyFromWkt);
}

/************************************************************************/
/*                            exportToWkt()                             */
/************************************************************************/

std::string OGRMultiCurve::exportToWkt(const OGRWktOptions &opts,
                                       OGRErr *err) const
{
    OGRWktOptions optsModified(opts);
    optsModified.variant = wkbVariantIso;
    return exportToWktInternal(optsModified, err, "LINESTRING");
}

/************************************************************************/
/*                          hasCurveGeometry()                          */
/************************************************************************/

bool OGRMultiCurve::hasCurveGeometry(int bLookForNonLinear) const
{
    if (bLookForNonLinear)
        return OGRGeometryCollection::hasCurveGeometry(TRUE);
    return true;
}

/************************************************************************/
/*                       CastToMultiLineString()                        */
/************************************************************************/

/**
 * \brief Cast to multi line string.
 *
 * This method should only be called if the multicurve actually only contains
 * instances of OGRLineString. This can be verified if hasCurveGeometry(TRUE)
 * returns FALSE. It is not intended to approximate circular curves. For that
 * use getLinearGeometry().
 *
 * The passed in geometry is consumed and a new one returned (or NULL in case
 * of failure).
 *
 * @param poMC the input geometry - ownership is passed to the method.
 * @return new geometry.
 */

OGRMultiLineString *OGRMultiCurve::CastToMultiLineString(OGRMultiCurve *poMC)
{
    for (auto &&poSubGeom : *poMC)
    {
        poSubGeom = OGRCurve::CastToLineString(poSubGeom);
        if (poSubGeom == nullptr)
        {
            delete poMC;
            return nullptr;
        }
    }
    OGRMultiLineString *poMLS = new OGRMultiLineString();
    TransferMembersAndDestroy(poMC, poMLS);
    return poMLS;
}

Coverage Report

Created: 2026-07-25 06:50

Line	Count	Source
1		/******************************************************************************
2		*
3		* Project: OpenGIS Simple Features Reference Implementation
4		* Purpose: The OGRMultiCurve class.
5		* Author: Even Rouault <even dot rouault at spatialys dot com>
6		*
7		******************************************************************************
8		* Copyright (c) 2014, Even Rouault <even dot rouault at spatialys dot com>
9		*
10		* SPDX-License-Identifier: MIT
11		****************************************************************************/
12
13		#include "cpl_port.h"
14		#include "ogr_geometry.h"
15
16		#include <cstddef>
17
18		#include "cpl_error.h"
19		#include "ogr_api.h"
20		#include "ogr_core.h"
21		#include "ogr_p.h"
22
23		/************************************************************************/
24		/* OGRMultiCurve( const OGRMultiCurve& ) */
25		/************************************************************************/
26
27		/**
28		* \brief Copy constructor.
29		*/
30
31	0	OGRMultiCurve::OGRMultiCurve(const OGRMultiCurve &) = default;
32
33		/************************************************************************/
34		/* operator=( const OGRMultiCurve&) */
35		/************************************************************************/
36
37		/**
38		* \brief Assignment operator.
39		*/
40
41		OGRMultiCurve &OGRMultiCurve::operator=(const OGRMultiCurve &other)
42	0	{
43	0	if (this != &other)
44	0	{
45	0	OGRGeometryCollection::operator=(other);
46	0	}
47	0	return *this;
48	0	}
49
50		/************************************************************************/
51		/* clone() */
52		/************************************************************************/
53
54		OGRMultiCurve *OGRMultiCurve::clone() const
55
56	0	{
57	0	auto ret = new (std::nothrow) OGRMultiCurve(*this);
58	0	if (ret)
59	0	{
60	0	if (ret->WkbSize() != WkbSize())
61	0	{
62	0	delete ret;
63	0	ret = nullptr;
64	0	}
65	0	}
66	0	return ret;
67	0	}
68
69		/************************************************************************/
70		/* getGeometryType() */
71		/************************************************************************/
72
73		OGRwkbGeometryType OGRMultiCurve::getGeometryType() const
74
75	0	{
76	0	if ((flags & OGR_G_3D) && (flags & OGR_G_MEASURED))
77	0	return wkbMultiCurveZM;
78	0	else if (flags & OGR_G_MEASURED)
79	0	return wkbMultiCurveM;
80	0	else if (flags & OGR_G_3D)
81	0	return wkbMultiCurveZ;
82	0	else
83	0	return wkbMultiCurve;
84	0	}
85
86		/************************************************************************/
87		/* getDimension() */
88		/************************************************************************/
89
90		int OGRMultiCurve::getDimension() const
91
92	0	{
93	0	return 1;
94	0	}
95
96		/************************************************************************/
97		/* getGeometryName() */
98		/************************************************************************/
99
100		const char *OGRMultiCurve::getGeometryName() const
101
102	0	{
103	0	return "MULTICURVE";
104	0	}
105
106		/************************************************************************/
107		/* isCompatibleSubType() */
108		/************************************************************************/
109
110		bool OGRMultiCurve::isCompatibleSubType(OGRwkbGeometryType eGeomType) const
111	0	{
112	0	return CPL_TO_BOOL(OGR_GT_IsCurve(eGeomType));
113	0	}
114
115		/! @cond Doxygen_Suppress /
116		/************************************************************************/
117		/* addCurveDirectlyFromWkt() */
118		/************************************************************************/
119
120		OGRErr OGRMultiCurve::addCurveDirectlyFromWkt(OGRGeometry *poSelf,
121		OGRCurve *poCurve)
122	0	{
123	0	return poSelf->toMultiCurve()->addGeometryDirectly(poCurve);
124	0	}
125
126		/! @endcond /
127
128		/************************************************************************/
129		/* importFromWkt() */
130		/* */
131		/* Instantiate from well known text format. */
132		/************************************************************************/
133
134		OGRErr OGRMultiCurve::importFromWkt(const char **ppszInput)
135
136	0	{
137	0	const bool bIsMultiCurve = wkbFlatten(getGeometryType()) == wkbMultiCurve;
138	0	return importCurveCollectionFromWkt(ppszInput,
139	0	TRUE, // bAllowEmptyComponent.
140	0	bIsMultiCurve, // bAllowLineString.
141	0	bIsMultiCurve, // bAllowCurve.
142	0	bIsMultiCurve, // bAllowCompoundCurve.
143	0	addCurveDirectlyFromWkt);
144	0	}
145
146		/************************************************************************/
147		/* exportToWkt() */
148		/************************************************************************/
149
150		std::string OGRMultiCurve::exportToWkt(const OGRWktOptions &opts,
151		OGRErr *err) const
152	0	{
153	0	OGRWktOptions optsModified(opts);
154	0	optsModified.variant = wkbVariantIso;
155	0	return exportToWktInternal(optsModified, err, "LINESTRING");
156	0	}
157
158		/************************************************************************/
159		/* hasCurveGeometry() */
160		/************************************************************************/
161
162		bool OGRMultiCurve::hasCurveGeometry(int bLookForNonLinear) const
163	0	{
164	0	if (bLookForNonLinear)
165	0	return OGRGeometryCollection::hasCurveGeometry(TRUE);
166	0	return true;
167	0	}
168
169		/************************************************************************/
170		/* CastToMultiLineString() */
171		/************************************************************************/
172
173		/**
174		* \brief Cast to multi line string.
175		*
176		* This method should only be called if the multicurve actually only contains
177		* instances of OGRLineString. This can be verified if hasCurveGeometry(TRUE)
178		* returns FALSE. It is not intended to approximate circular curves. For that
179		* use getLinearGeometry().
180		*
181		* The passed in geometry is consumed and a new one returned (or NULL in case
182		* of failure).
183		*
184		* @param poMC the input geometry - ownership is passed to the method.
185		* @return new geometry.
186		*/
187
188		OGRMultiLineString OGRMultiCurve::CastToMultiLineString(OGRMultiCurve poMC)
189	0	{
190	0	for (auto &&poSubGeom : *poMC)
191	0	{
192	0	poSubGeom = OGRCurve::CastToLineString(poSubGeom);
193	0	if (poSubGeom == nullptr)
194	0	{
195	0	delete poMC;
196	0	return nullptr;
197	0	}
198	0	}
199	0	OGRMultiLineString *poMLS = new OGRMultiLineString();
200	0	TransferMembersAndDestroy(poMC, poMLS);
201	0	return poMLS;
202	0	}