/src/gdal/ogr/ogrsf_frmts/dxf/ogrdxfdriver.cpp

Source
/******************************************************************************
 *
 * Project:  DXF Translator
 * Purpose:  Implements OGRDXFDriver.
 * Author:   Frank Warmerdam, warmerdam@pobox.com
 *
 ******************************************************************************
 * Copyright (c) 2009, Frank Warmerdam <warmerdam@pobox.com>
 *
 * SPDX-License-Identifier: MIT
 ****************************************************************************/

#include "ogr_dxf.h"
#include "cpl_conv.h"
#include "cpl_vsi_virtual.h"

#include <algorithm>

/************************************************************************/
/*                       OGRDXFDriverIdentify()                         */
/************************************************************************/

static int OGRDXFDriverIdentify(GDALOpenInfo *poOpenInfo)

{
    if (poOpenInfo->fpL == nullptr || poOpenInfo->nHeaderBytes == 0)
        return FALSE;
    if (poOpenInfo->IsExtensionEqualToCI("dxf"))
        return TRUE;

    const char *pszIter =
        reinterpret_cast<const char *>(poOpenInfo->pabyHeader);
    if (STARTS_WITH(pszIter, AUTOCAD_BINARY_DXF_SIGNATURE.data()))
        return true;

    bool bFoundZero = false;
    int i = 0;  // Used after for.
    for (; pszIter[i]; i++)
    {
        if (pszIter[i] == '0')
        {
            int j = i - 1;  // Used after for.
            for (; j >= 0; j--)
            {
                if (pszIter[j] != ' ')
                    break;
            }
            if (j < 0 || pszIter[j] == '\n' || pszIter[j] == '\r')
            {
                bFoundZero = true;
                break;
            }
        }
    }
    if (!bFoundZero)
        return FALSE;
    i++;
    while (pszIter[i] == ' ')
        i++;
    while (pszIter[i] == '\n' || pszIter[i] == '\r')
        i++;
    if (!STARTS_WITH_CI(pszIter + i, "SECTION"))
        return FALSE;
    i += static_cast<int>(strlen("SECTION"));
    return pszIter[i] == '\n' || pszIter[i] == '\r';
}

/************************************************************************/
/*                                Open()                                */
/************************************************************************/

static GDALDataset *OGRDXFDriverOpen(GDALOpenInfo *poOpenInfo)

{
    if (!OGRDXFDriverIdentify(poOpenInfo))
        return nullptr;

    auto poDS = std::make_unique<OGRDXFDataSource>();

    VSILFILE *fp = nullptr;
    std::swap(fp, poOpenInfo->fpL);

    if (!poDS->Open(poOpenInfo->pszFilename, fp, false,
                    poOpenInfo->papszOpenOptions))
    {
        poDS.reset();
    }

    return poDS.release();
}

/************************************************************************/
/*                              Create()                                */
/************************************************************************/

static GDALDataset *
OGRDXFDriverCreate(const char *pszName, CPL_UNUSED int nBands,
                   CPL_UNUSED int nXSize, CPL_UNUSED int nYSize,
                   CPL_UNUSED GDALDataType eDT, char **papszOptions)
{
    OGRDXFWriterDS *poDS = new OGRDXFWriterDS();

    if (poDS->Open(pszName, papszOptions))
        return poDS;
    else
    {
        delete poDS;
        return nullptr;
    }
}

/************************************************************************/
/*                   OGRDXFDriverCanVectorTranslateFrom()               */
/************************************************************************/

static bool OGRDXFDriverCanVectorTranslateFrom(
    const char * /*pszDestName*/, GDALDataset *poSourceDS,
    CSLConstList papszVectorTranslateArguments, char ***ppapszFailureReasons)
{
    VSIVirtualHandleUniquePtr fpSrc;
    auto poSrcDriver = poSourceDS->GetDriver();
    if (poSrcDriver && EQUAL(poSrcDriver->GetDescription(), "DXF"))
    {
        fpSrc.reset(VSIFOpenL(poSourceDS->GetDescription(), "rb"));
    }
    if (!fpSrc)
    {
        if (ppapszFailureReasons)
            *ppapszFailureReasons = CSLAddString(
                *ppapszFailureReasons, "Source driver is not binary DXF");
        return false;
    }
    std::string osBuffer;
    constexpr size_t nBinarySignatureLen = AUTOCAD_BINARY_DXF_SIGNATURE.size();
    osBuffer.resize(nBinarySignatureLen);
    if (!(fpSrc->Read(osBuffer.data(), 1, osBuffer.size()) == osBuffer.size() &&
          memcmp(osBuffer.data(), AUTOCAD_BINARY_DXF_SIGNATURE.data(),
                 nBinarySignatureLen) == 0))
    {
        if (ppapszFailureReasons)
            *ppapszFailureReasons = CSLAddString(
                *ppapszFailureReasons, "Source driver is not binary DXF");
        return false;
    }

    if (papszVectorTranslateArguments)
    {
        const int nArgs = CSLCount(papszVectorTranslateArguments);
        for (int i = 0; i < nArgs; ++i)
        {
            if (i + 1 < nArgs &&
                (strcmp(papszVectorTranslateArguments[i], "-f") == 0 ||
                 strcmp(papszVectorTranslateArguments[i], "-of") == 0))
            {
                ++i;
            }
            else
            {
                if (ppapszFailureReasons)
                    *ppapszFailureReasons =
                        CSLAddString(*ppapszFailureReasons,
                                     "Direct copy from binary DXF does not "
                                     "support GDALVectorTranslate() options");
                return false;
            }
        }
    }

    return true;
}

/************************************************************************/
/*                     OGRDXFDriverVectorTranslateFrom()                */
/************************************************************************/

static GDALDataset *OGRDXFDriverVectorTranslateFrom(
    const char *pszDestName, GDALDataset *poSourceDS,
    CSLConstList papszVectorTranslateArguments,
    GDALProgressFunc /* pfnProgress */, void * /* pProgressData */)
{
    if (!OGRDXFDriverCanVectorTranslateFrom(
            pszDestName, poSourceDS, papszVectorTranslateArguments, nullptr))
    {
        return nullptr;
    }

    CPLDebug("DXF",
             "Doing direct translation from AutoCAD DXF Binary to DXF ASCII");

    VSIVirtualHandleUniquePtr fpSrc(
        VSIFOpenL(poSourceDS->GetDescription(), "rb"));
    if (!fpSrc)
    {
        return nullptr;
    }

    VSIVirtualHandleUniquePtr fpDst(VSIFOpenL(pszDestName, "wb"));
    if (!fpDst)
    {
        CPLError(CE_Failure, CPLE_FileIO, "Cannot create %s ", pszDestName);
        return nullptr;
    }

    OGRDXFReaderBinary reader;
    reader.Initialize(fpSrc.get());

    constexpr const int BUFFER_SIZE = 4096;
    std::string osBuffer;
    osBuffer.resize(BUFFER_SIZE);

    bool bOK = true;
    int nCode;
    while (bOK && (nCode = reader.ReadValue(&osBuffer[0], BUFFER_SIZE)) >= 0)
    {
        bOK = fpDst->Printf("%d\n%s\n", nCode, osBuffer.c_str()) != 0;
        if (nCode == 0 && osBuffer.compare(0, 3, "EOF", 3) == 0)
            break;
    }

    if (!bOK || VSIFCloseL(fpDst.release()) != 0)
    {
        CPLError(CE_Failure, CPLE_FileIO, "Error while writing file");
        return nullptr;
    }

    GDALOpenInfo oOpenInfo(pszDestName, GA_ReadOnly);
    return OGRDXFDriverOpen(&oOpenInfo);
}

/************************************************************************/
/*                           RegisterOGRDXF()                           */
/************************************************************************/

void RegisterOGRDXF()

{
    if (GDALGetDriverByName("DXF") != nullptr)
        return;

    GDALDriver *poDriver = new GDALDriver();

    poDriver->SetDescription("DXF");
    poDriver->SetMetadataItem(GDAL_DCAP_VECTOR, "YES");
    poDriver->SetMetadataItem(GDAL_DCAP_CREATE_LAYER, "YES");
    poDriver->SetMetadataItem(GDAL_DMD_LONGNAME, "AutoCAD DXF");
    poDriver->SetMetadataItem(GDAL_DMD_EXTENSION, "dxf");
    poDriver->SetMetadataItem(GDAL_DMD_HELPTOPIC, "drivers/vector/dxf.html");
    poDriver->SetMetadataItem(GDAL_DCAP_Z_GEOMETRIES, "YES");
    poDriver->SetMetadataItem(GDAL_DMD_SUPPORTED_SQL_DIALECTS, "OGRSQL SQLITE");

    poDriver->SetMetadataItem(
        GDAL_DMD_CREATIONOPTIONLIST,
        "<CreationOptionList>"
        "  <Option name='HEADER' type='string' description='Template header "
        "file' default='header.dxf'/>"
        "  <Option name='TRAILER' type='string' description='Template trailer "
        "file' default='trailer.dxf'/>"
        "  <Option name='FIRST_ENTITY' type='int' description='Identifier of "
        "first entity'/>"
        "  <Option name='INSUNITS' type='string-select' "
        "description='Drawing units for the model space ($INSUNITS system "
        "variable)' default='AUTO'>"
        "    <Value>AUTO</Value>"
        "    <Value>HEADER_VALUE</Value>"
        "    <Value alias='0'>UNITLESS</Value>"
        "    <Value alias='1'>INCHES</Value>"
        "    <Value alias='2'>FEET</Value>"
        "    <Value alias='4'>MILLIMETERS</Value>"
        "    <Value alias='5'>CENTIMETERS</Value>"
        "    <Value alias='6'>METERS</Value>"
        "    <Value alias='21'>US_SURVEY_FEET</Value>"
        "  </Option>"
        "  <Option name='MEASUREMENT' type='string-select' "
        "description='Whether the current drawing uses imperial or metric "
        "hatch "
        "pattern and linetype ($MEASUREMENT system variable)' "
        "default='HEADER_VALUE'>"
        "    <Value>HEADER_VALUE</Value>"
        "    <Value alias='0'>IMPERIAL</Value>"
        "    <Value alias='1'>METRIC</Value>"
        "  </Option>"
        "</CreationOptionList>");

    poDriver->SetMetadataItem(
        GDAL_DMD_OPENOPTIONLIST,
        "<OpenOptionList>"
        "  <Option name='CLOSED_LINE_AS_POLYGON' type='boolean' description="
        "'Whether to expose closed POLYLINE/LWPOLYLINE as polygons' "
        "default='NO'/>"
        "  <Option name='INLINE_BLOCKS' type='boolean' description="
        "'Whether INSERT entities are exploded with the geometry of the BLOCK "
        "they reference' default='YES'/>"
        "  <Option name='MERGE_BLOCK_GEOMETRIES' type='boolean' description="
        "'Whether blocks should be merged into a compound geometry' "
        "default='YES'/>"
        "  <Option name='TRANSLATE_ESCAPE_SEQUENCES' type='boolean' "
        "description="
        "'Whether character escapes are honored where applicable, and MTEXT "
        "control sequences are stripped' default='YES'/>"
        "  <Option name='INCLUDE_RAW_CODE_VALUES' type='boolean' description="
        "'Whether a RawCodeValues field should be added to contain all group "
        "codes and values' default='NO'/>"
        "  <Option name='3D_EXTENSIBLE_MODE' type='boolean' description="
        "'Whether to include ASM entities with the raw ASM data stored in a "
        "field' default='NO'/>"
        "  <Option name='HATCH_TOLEARNCE' type='float' description="
        "'Tolerance used when looking for the next component to add to the "
        "hatch boundary.'/>"
        "  <Option name='ENCODING' type='string' description="
        "'Encoding name, as supported by iconv, to override $DWGCODEPAGE'/>"
        "</OpenOptionList>");

    poDriver->SetMetadataItem(GDAL_DS_LAYER_CREATIONOPTIONLIST,
                              "<LayerCreationOptionList/>");

    poDriver->SetMetadataItem(GDAL_DCAP_VIRTUALIO, "YES");
    poDriver->SetMetadataItem(GDAL_DCAP_FEATURE_STYLES, "YES");
    poDriver->SetMetadataItem(GDAL_DCAP_FEATURE_STYLES_READ, "YES");
    poDriver->SetMetadataItem(GDAL_DCAP_FEATURE_STYLES_WRITE, "YES");
    poDriver->SetMetadataItem(GDAL_DCAP_MULTIPLE_VECTOR_LAYERS, "YES");

    poDriver->pfnOpen = OGRDXFDriverOpen;
    poDriver->pfnIdentify = OGRDXFDriverIdentify;
    poDriver->pfnCreate = OGRDXFDriverCreate;
    poDriver->pfnCanVectorTranslateFrom = OGRDXFDriverCanVectorTranslateFrom;
    poDriver->pfnVectorTranslateFrom = OGRDXFDriverVectorTranslateFrom;

    GetGDALDriverManager()->RegisterDriver(poDriver);
}

Coverage Report

Created: 2025-12-03 08:24

Line	Count	Source
1		/******************************************************************************
2		*
3		* Project: DXF Translator
4		* Purpose: Implements OGRDXFDriver.
5		* Author: Frank Warmerdam, warmerdam@pobox.com
6		*
7		******************************************************************************
8		* Copyright (c) 2009, Frank Warmerdam <warmerdam@pobox.com>
9		*
10		* SPDX-License-Identifier: MIT
11		****************************************************************************/
12
13		#include "ogr_dxf.h"
14		#include "cpl_conv.h"
15		#include "cpl_vsi_virtual.h"
16
17		#include <algorithm>
18
19		/************************************************************************/
20		/* OGRDXFDriverIdentify() */
21		/************************************************************************/
22
23		static int OGRDXFDriverIdentify(GDALOpenInfo *poOpenInfo)
24
25	119k	{
26	119k	if (poOpenInfo->fpL == nullptr \|\| poOpenInfo->nHeaderBytes == 0)
27	36.4k	return FALSE;
28	82.7k	if (poOpenInfo->IsExtensionEqualToCI("dxf"))
29	72	return TRUE;
30
31	82.6k	const char *pszIter =
32	82.6k	reinterpret_cast<const char *>(poOpenInfo->pabyHeader);
33	82.6k	if (STARTS_WITH(pszIter, AUTOCAD_BINARY_DXF_SIGNATURE.data()))
34	238	return true;
35
36	82.3k	bool bFoundZero = false;
37	82.3k	int i = 0; // Used after for.
38	38.8M	for (; pszIter[i]; i++)
39	38.8M	{
40	38.8M	if (pszIter[i] == '0')
41	655k	{
42	655k	int j = i - 1; // Used after for.
43	681k	for (; j >= 0; j--)
44	647k	{
45	647k	if (pszIter[j] != ' ')
46	621k	break;
47	647k	}
48	655k	if (j < 0 \|\| pszIter[j] == '\n' \|\| pszIter[j] == '\r')
49	52.5k	{
50	52.5k	bFoundZero = true;
51	52.5k	break;
52	52.5k	}
53	655k	}
54	38.8M	}
55	82.3k	if (!bFoundZero)
56	29.8k	return FALSE;
57	52.5k	i++;
58	53.6k	while (pszIter[i] == ' ')
59	1.08k	i++;
60	91.3k	while (pszIter[i] == '\n' \|\| pszIter[i] == '\r')
61	38.7k	i++;
62	52.5k	if (!STARTS_WITH_CI(pszIter + i, "SECTION"))
63	2.13k	return FALSE;
64	50.4k	i += static_cast<int>(strlen("SECTION"));
65	50.4k	return pszIter[i] == '\n' \|\| pszIter[i] == '\r';
66	52.5k	}
67
68		/************************************************************************/
69		/* Open() */
70		/************************************************************************/
71
72		static GDALDataset OGRDXFDriverOpen(GDALOpenInfo poOpenInfo)
73
74	25.3k	{
75	25.3k	if (!OGRDXFDriverIdentify(poOpenInfo))
76	0	return nullptr;
77
78	25.3k	auto poDS = std::make_unique<OGRDXFDataSource>();
79
80	25.3k	VSILFILE *fp = nullptr;
81	25.3k	std::swap(fp, poOpenInfo->fpL);
82
83	25.3k	if (!poDS->Open(poOpenInfo->pszFilename, fp, false,
84	25.3k	poOpenInfo->papszOpenOptions))
85	7.30k	{
86	7.30k	poDS.reset();
87	7.30k	}
88
89	25.3k	return poDS.release();
90	25.3k	}
91
92		/************************************************************************/
93		/* Create() */
94		/************************************************************************/
95
96		static GDALDataset *
97		OGRDXFDriverCreate(const char *pszName, CPL_UNUSED int nBands,
98		CPL_UNUSED int nXSize, CPL_UNUSED int nYSize,
99		CPL_UNUSED GDALDataType eDT, char **papszOptions)
100	0	{
101	0	OGRDXFWriterDS *poDS = new OGRDXFWriterDS();
102
103	0	if (poDS->Open(pszName, papszOptions))
104	0	return poDS;
105	0	else
106	0	{
107	0	delete poDS;
108	0	return nullptr;
109	0	}
110	0	}
111
112		/************************************************************************/
113		/* OGRDXFDriverCanVectorTranslateFrom() */
114		/************************************************************************/
115
116		static bool OGRDXFDriverCanVectorTranslateFrom(
117		const char * /pszDestName/, GDALDataset *poSourceDS,
118		CSLConstList papszVectorTranslateArguments, char ***ppapszFailureReasons)
119	0	{
120	0	VSIVirtualHandleUniquePtr fpSrc;
121	0	auto poSrcDriver = poSourceDS->GetDriver();
122	0	if (poSrcDriver && EQUAL(poSrcDriver->GetDescription(), "DXF"))
123	0	{
124	0	fpSrc.reset(VSIFOpenL(poSourceDS->GetDescription(), "rb"));
125	0	}
126	0	if (!fpSrc)
127	0	{
128	0	if (ppapszFailureReasons)
129	0	*ppapszFailureReasons = CSLAddString(
130	0	*ppapszFailureReasons, "Source driver is not binary DXF");
131	0	return false;
132	0	}
133	0	std::string osBuffer;
134	0	constexpr size_t nBinarySignatureLen = AUTOCAD_BINARY_DXF_SIGNATURE.size();
135	0	osBuffer.resize(nBinarySignatureLen);
136	0	if (!(fpSrc->Read(osBuffer.data(), 1, osBuffer.size()) == osBuffer.size() &&
137	0	memcmp(osBuffer.data(), AUTOCAD_BINARY_DXF_SIGNATURE.data(),
138	0	nBinarySignatureLen) == 0))
139	0	{
140	0	if (ppapszFailureReasons)
141	0	*ppapszFailureReasons = CSLAddString(
142	0	*ppapszFailureReasons, "Source driver is not binary DXF");
143	0	return false;
144	0	}
145
146	0	if (papszVectorTranslateArguments)
147	0	{
148	0	const int nArgs = CSLCount(papszVectorTranslateArguments);
149	0	for (int i = 0; i < nArgs; ++i)
150	0	{
151	0	if (i + 1 < nArgs &&
152	0	(strcmp(papszVectorTranslateArguments[i], "-f") == 0 \|\|
153	0	strcmp(papszVectorTranslateArguments[i], "-of") == 0))
154	0	{
155	0	++i;
156	0	}
157	0	else
158	0	{
159	0	if (ppapszFailureReasons)
160	0	*ppapszFailureReasons =
161	0	CSLAddString(*ppapszFailureReasons,
162	0	"Direct copy from binary DXF does not "
163	0	"support GDALVectorTranslate() options");
164	0	return false;
165	0	}
166	0	}
167	0	}
168
169	0	return true;
170	0	}
171
172		/************************************************************************/
173		/* OGRDXFDriverVectorTranslateFrom() */
174		/************************************************************************/
175
176		static GDALDataset *OGRDXFDriverVectorTranslateFrom(
177		const char pszDestName, GDALDataset poSourceDS,
178		CSLConstList papszVectorTranslateArguments,
179		GDALProgressFunc /* pfnProgress /, void /* pProgressData */)
180	0	{
181	0	if (!OGRDXFDriverCanVectorTranslateFrom(
182	0	pszDestName, poSourceDS, papszVectorTranslateArguments, nullptr))
183	0	{
184	0	return nullptr;
185	0	}
186
187	0	CPLDebug("DXF",
188	0	"Doing direct translation from AutoCAD DXF Binary to DXF ASCII");
189
190	0	VSIVirtualHandleUniquePtr fpSrc(
191	0	VSIFOpenL(poSourceDS->GetDescription(), "rb"));
192	0	if (!fpSrc)
193	0	{
194	0	return nullptr;
195	0	}
196
197	0	VSIVirtualHandleUniquePtr fpDst(VSIFOpenL(pszDestName, "wb"));
198	0	if (!fpDst)
199	0	{
200	0	CPLError(CE_Failure, CPLE_FileIO, "Cannot create %s ", pszDestName);
201	0	return nullptr;
202	0	}
203
204	0	OGRDXFReaderBinary reader;
205	0	reader.Initialize(fpSrc.get());
206
207	0	constexpr const int BUFFER_SIZE = 4096;
208	0	std::string osBuffer;
209	0	osBuffer.resize(BUFFER_SIZE);
210
211	0	bool bOK = true;
212	0	int nCode;
213	0	while (bOK && (nCode = reader.ReadValue(&osBuffer[0], BUFFER_SIZE)) >= 0)
214	0	{
215	0	bOK = fpDst->Printf("%d\n%s\n", nCode, osBuffer.c_str()) != 0;
216	0	if (nCode == 0 && osBuffer.compare(0, 3, "EOF", 3) == 0)
217	0	break;
218	0	}
219
220	0	if (!bOK \|\| VSIFCloseL(fpDst.release()) != 0)
221	0	{
222	0	CPLError(CE_Failure, CPLE_FileIO, "Error while writing file");
223	0	return nullptr;
224	0	}
225
226	0	GDALOpenInfo oOpenInfo(pszDestName, GA_ReadOnly);
227	0	return OGRDXFDriverOpen(&oOpenInfo);
228	0	}
229
230		/************************************************************************/
231		/* RegisterOGRDXF() */
232		/************************************************************************/
233
234		void RegisterOGRDXF()
235
236	24	{
237	24	if (GDALGetDriverByName("DXF") != nullptr)
238	0	return;
239
240	24	GDALDriver *poDriver = new GDALDriver();
241
242	24	poDriver->SetDescription("DXF");
243	24	poDriver->SetMetadataItem(GDAL_DCAP_VECTOR, "YES");
244	24	poDriver->SetMetadataItem(GDAL_DCAP_CREATE_LAYER, "YES");
245	24	poDriver->SetMetadataItem(GDAL_DMD_LONGNAME, "AutoCAD DXF");
246	24	poDriver->SetMetadataItem(GDAL_DMD_EXTENSION, "dxf");
247	24	poDriver->SetMetadataItem(GDAL_DMD_HELPTOPIC, "drivers/vector/dxf.html");
248	24	poDriver->SetMetadataItem(GDAL_DCAP_Z_GEOMETRIES, "YES");
249	24	poDriver->SetMetadataItem(GDAL_DMD_SUPPORTED_SQL_DIALECTS, "OGRSQL SQLITE");
250
251	24	poDriver->SetMetadataItem(
252	24	GDAL_DMD_CREATIONOPTIONLIST,
253	24	"<CreationOptionList>"
254	24	" <Option name='HEADER' type='string' description='Template header "
255	24	"file' default='header.dxf'/>"
256	24	" <Option name='TRAILER' type='string' description='Template trailer "
257	24	"file' default='trailer.dxf'/>"
258	24	" <Option name='FIRST_ENTITY' type='int' description='Identifier of "
259	24	"first entity'/>"
260	24	" <Option name='INSUNITS' type='string-select' "
261	24	"description='Drawing units for the model space ($INSUNITS system "
262	24	"variable)' default='AUTO'>"
263	24	" <Value>AUTO</Value>"
264	24	" <Value>HEADER_VALUE</Value>"
265	24	" <Value alias='0'>UNITLESS</Value>"
266	24	" <Value alias='1'>INCHES</Value>"
267	24	" <Value alias='2'>FEET</Value>"
268	24	" <Value alias='4'>MILLIMETERS</Value>"
269	24	" <Value alias='5'>CENTIMETERS</Value>"
270	24	" <Value alias='6'>METERS</Value>"
271	24	" <Value alias='21'>US_SURVEY_FEET</Value>"
272	24	" </Option>"
273	24	" <Option name='MEASUREMENT' type='string-select' "
274	24	"description='Whether the current drawing uses imperial or metric "
275	24	"hatch "
276	24	"pattern and linetype ($MEASUREMENT system variable)' "
277	24	"default='HEADER_VALUE'>"
278	24	" <Value>HEADER_VALUE</Value>"
279	24	" <Value alias='0'>IMPERIAL</Value>"
280	24	" <Value alias='1'>METRIC</Value>"
281	24	" </Option>"
282	24	"</CreationOptionList>");
283
284	24	poDriver->SetMetadataItem(
285	24	GDAL_DMD_OPENOPTIONLIST,
286	24	"<OpenOptionList>"
287	24	" <Option name='CLOSED_LINE_AS_POLYGON' type='boolean' description="
288	24	"'Whether to expose closed POLYLINE/LWPOLYLINE as polygons' "
289	24	"default='NO'/>"
290	24	" <Option name='INLINE_BLOCKS' type='boolean' description="
291	24	"'Whether INSERT entities are exploded with the geometry of the BLOCK "
292	24	"they reference' default='YES'/>"
293	24	" <Option name='MERGE_BLOCK_GEOMETRIES' type='boolean' description="
294	24	"'Whether blocks should be merged into a compound geometry' "
295	24	"default='YES'/>"
296	24	" <Option name='TRANSLATE_ESCAPE_SEQUENCES' type='boolean' "
297	24	"description="
298	24	"'Whether character escapes are honored where applicable, and MTEXT "
299	24	"control sequences are stripped' default='YES'/>"
300	24	" <Option name='INCLUDE_RAW_CODE_VALUES' type='boolean' description="
301	24	"'Whether a RawCodeValues field should be added to contain all group "
302	24	"codes and values' default='NO'/>"
303	24	" <Option name='3D_EXTENSIBLE_MODE' type='boolean' description="
304	24	"'Whether to include ASM entities with the raw ASM data stored in a "
305	24	"field' default='NO'/>"
306	24	" <Option name='HATCH_TOLEARNCE' type='float' description="
307	24	"'Tolerance used when looking for the next component to add to the "
308	24	"hatch boundary.'/>"
309	24	" <Option name='ENCODING' type='string' description="
310	24	"'Encoding name, as supported by iconv, to override $DWGCODEPAGE'/>"
311	24	"</OpenOptionList>");
312
313	24	poDriver->SetMetadataItem(GDAL_DS_LAYER_CREATIONOPTIONLIST,
314	24	"<LayerCreationOptionList/>");
315
316	24	poDriver->SetMetadataItem(GDAL_DCAP_VIRTUALIO, "YES");
317	24	poDriver->SetMetadataItem(GDAL_DCAP_FEATURE_STYLES, "YES");
318	24	poDriver->SetMetadataItem(GDAL_DCAP_FEATURE_STYLES_READ, "YES");
319	24	poDriver->SetMetadataItem(GDAL_DCAP_FEATURE_STYLES_WRITE, "YES");
320	24	poDriver->SetMetadataItem(GDAL_DCAP_MULTIPLE_VECTOR_LAYERS, "YES");
321
322	24	poDriver->pfnOpen = OGRDXFDriverOpen;
323	24	poDriver->pfnIdentify = OGRDXFDriverIdentify;
324	24	poDriver->pfnCreate = OGRDXFDriverCreate;
325	24	poDriver->pfnCanVectorTranslateFrom = OGRDXFDriverCanVectorTranslateFrom;
326	24	poDriver->pfnVectorTranslateFrom = OGRDXFDriverVectorTranslateFrom;
327
328	24	GetGDALDriverManager()->RegisterDriver(poDriver);
329	24	}