GDAL
gnm.h
1 /******************************************************************************
2  * $Id$
3  *
4  * Project: GDAL/OGR Geography Network support (Geographic Network Model)
5  * Purpose: GNM general public declarations.
6  * Authors: Mikhail Gusev (gusevmihs at gmail dot com)
7  * Dmitry Baryshnikov, polimax@mail.ru
8  *
9  ******************************************************************************
10  * Copyright (c) 2014, Mikhail Gusev
11  * Copyright (c) 2014-2015, NextGIS <info@nextgis.com>
12  *
13  * Permission is hereby granted, free of charge, to any person obtaining a
14  * copy of this software and associated documentation files (the "Software"),
15  * to deal in the Software without restriction, including without limitation
16  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
17  * and/or sell copies of the Software, and to permit persons to whom the
18  * Software is furnished to do so, subject to the following conditions:
19  *
20  * The above copyright notice and this permission notice shall be included
21  * in all copies or substantial portions of the Software.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
24  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
25  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
26  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
27  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
28  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
29  * DEALINGS IN THE SOFTWARE.
30  ****************************************************************************/
31 
32 #ifndef GNM
33 #define GNM
34 
35 #if defined(__cplusplus) && !defined(CPL_SUPRESS_CPLUSPLUS)
36 #include "ogrsf_frmts.h"
37 #endif
38 #include "gnmgraph.h"
39 
40 // Direction of an edge.
41 typedef int GNMDirection; // We use int values in order to save them to the
42  // network data.
43 
44 // Network's metadata parameters names.
45 #define GNM_MD_NAME "net_name"
46 #define GNM_MD_DESCR "net_description"
47 #define GNM_MD_SRS "net_srs"
48 #define GNM_MD_VERSION "net_version"
49 #define GNM_MD_RULE "net_rule"
50 #define GNM_MD_FORMAT "FORMAT"
51 #define GNM_MD_FETCHEDGES "fetch_edge"
52 #define GNM_MD_FETCHVERTEX "fetch_vertex"
53 #define GNM_MD_NUM_PATHS "num_paths"
54 #define GNM_MD_EMITTER "emitter"
55 
56 // TODO: Constants for capabilities.
57 //#define GNMCanChangeConnections "CanChangeConnections"
58 
59 typedef enum
60 { GATDijkstraShortestPath = 1, GATKShortestPath, GATConnectedComponents
64 } GNMGraphAlgorithmType;
65 
66 #if defined(__cplusplus) && !defined(CPL_SUPRESS_CPLUSPLUS)
67 
74 class CPL_DLL GNMNetwork : public GDALDataset
75 {
76 public:
77  GNMNetwork();
78  virtual ~GNMNetwork();
79 
80  // GDALDataset Interface
81  virtual const char *GetProjectionRef(void) override;
82  virtual char **GetFileList(void) override;
83 
84  // GNMNetwork Interface
85 
106  virtual CPLErr Create( const char* pszFilename, char** papszOptions ) = 0;
107 
113  virtual CPLErr Open( GDALOpenInfo* poOpenInfo ) = 0;
114 
119  virtual CPLErr Delete() = 0;
120 
127  virtual const char* GetName() const;
128 
133  virtual int GetVersion() const { return 0;}
134 
139  virtual CPLErr DisconnectAll () = 0;
140 
148  virtual OGRFeature *GetFeatureByGlobalFID (GNMGFID nGFID) = 0;
149 
160  virtual OGRLayer *GetPath (GNMGFID nStartFID, GNMGFID nEndFID,
161  GNMGraphAlgorithmType eAlgorithm, char** papszOptions) = 0;
162 protected:
169  virtual int CheckNetworkExist( const char* pszFilename,
170  char** papszOptions ) = 0;
171 
172 protected:
174  CPLString m_soName;
175  CPLString m_soSRS;
177 };
178 
179 class GNMRule;
181 
188 class CPL_DLL GNMGenericNetwork: public GNMNetwork
189 {
190 public:
192  virtual ~GNMGenericNetwork();
193 
194  // GDALDataset Interface
195 
196  virtual int GetLayerCount() override;
197  virtual OGRLayer *GetLayer(int) override;
198  virtual OGRErr DeleteLayer(int) override;
199 
200  virtual int TestCapability( const char * ) override;
201 
202  virtual OGRLayer *CopyLayer( OGRLayer *poSrcLayer,
203  const char *pszNewName,
204  char **papszOptions = nullptr ) override;
205 
206  virtual int CloseDependentDatasets() override;
207  virtual void FlushCache(void) override;
208 
209  // GNMNetwork Interface
210 
211  virtual CPLErr Create( const char* pszFilename, char** papszOptions ) override = 0;
212  virtual CPLErr Delete() override;
213 
214  virtual int GetVersion() const override;
219  virtual GNMGFID GetNewGlobalFID();
220 
227  virtual CPLString GetAlgorithmName(GNMDirection eAlgorithm, bool bShortName);
228 
236  virtual CPLErr AddFeatureGlobalFID(GNMGFID nFID, const char* pszLayerName);
237 
251  virtual CPLErr ConnectFeatures (GNMGFID nSrcFID,
252  GNMGFID nTgtFID,
253  GNMGFID nConFID = -1,
254  double dfCost = 1,
255  double dfInvCost = 1,
256  GNMDirection eDir = GNM_EDGE_DIR_BOTH);
257 
265  virtual CPLErr DisconnectFeatures (GNMGFID nSrcFID,
266  GNMGFID nTgtFID,
267  GNMGFID nConFID);
268 
275  virtual CPLErr DisconnectFeaturesWithId(GNMGFID nFID);
276 
289  virtual CPLErr ReconnectFeatures (GNMGFID nSrcFID,
290  GNMGFID nTgtFID,
291  GNMGFID nConFID,
292  double dfCost = 1,
293  double dfInvCost = 1,
294  GNMDirection eDir = GNM_EDGE_DIR_BOTH);
295 
296  virtual CPLErr DisconnectAll() override;
297 
298  virtual OGRFeature *GetFeatureByGlobalFID(GNMGFID nFID) override;
299 
334  virtual CPLErr CreateRule (const char *pszRuleStr);
335 
340  virtual CPLErr DeleteAllRules();
341 
347  virtual CPLErr DeleteRule(const char *pszRuleStr);
348 
353  virtual char** GetRules() const;
354 
379  virtual CPLErr ConnectPointsByLines (char **papszLayerList,
380  double dfTolerance,
381  double dfCost,
382  double dfInvCost,
383  GNMDirection eDir);
384 
391  virtual CPLErr ChangeBlockState (GNMGFID nFID, bool bIsBlock);
392 
401  virtual CPLErr ChangeAllBlockState (bool bIsBlock = false);
402 
403  virtual OGRLayer *GetPath (GNMGFID nStartFID, GNMGFID nEndFID,
404  GNMGraphAlgorithmType eAlgorithm, char** papszOptions) override;
405 protected:
412  virtual CPLErr CheckLayerDriver(const char* pszDefaultDriverName,
413  char** papszOptions);
419  virtual bool CheckStorageDriverSupport(const char* pszDriverName) = 0;
420 protected:
422  virtual CPLErr CreateMetadataLayer( GDALDataset* const pDS, int nVersion,
423  size_t nFieldSize = 1024 );
424  virtual CPLErr StoreNetworkSrs();
425  virtual CPLErr LoadNetworkSrs();
426  virtual CPLErr CreateGraphLayer( GDALDataset* const pDS );
427  virtual CPLErr CreateFeaturesLayer( GDALDataset* const pDS );
428  virtual CPLErr LoadMetadataLayer( GDALDataset* const pDS );
429  virtual CPLErr LoadGraphLayer( GDALDataset* const pDS );
430  virtual CPLErr LoadGraph();
431  virtual CPLErr LoadFeaturesLayer( GDALDataset* const pDS );
432  virtual CPLErr DeleteMetadataLayer() = 0;
433  virtual CPLErr DeleteGraphLayer() = 0;
434  virtual CPLErr DeleteFeaturesLayer() = 0;
435  virtual CPLErr LoadNetworkLayer(const char* pszLayername) = 0;
436  virtual CPLErr DeleteNetworkLayers() = 0;
437  virtual void ConnectPointsByMultiline(GIntBig nFID,
438  const OGRMultiLineString *poMultiLineString,
439  const std::vector<OGRLayer *> &paPointLayers,
440  double dfTolerance, double dfCost,
441  double dfInvCost, GNMDirection eDir);
442  virtual void ConnectPointsByLine(GIntBig nFID,
443  const OGRLineString *poLineString,
444  const std::vector<OGRLayer *> &paPointLayers,
445  double dfTolerance, double dfCost,
446  double dfInvCost, GNMDirection eDir);
447  virtual GNMGFID FindNearestPoint(const OGRPoint* poPoint,
448  const std::vector<OGRLayer*>& paPointLayers,
449  double dfTolerance);
450  virtual OGRFeature* FindConnection(GNMGFID nSrcFID, GNMGFID nTgtFID,
451  GNMGFID nConFID);
452  virtual void SaveRules();
453  virtual GNMGFID GetNewVirtualFID();
454  virtual void FillResultLayer(OGRGNMWrappedResultLayer* poResLayer,
455  const GNMPATH &path, int nNoOfPath,
456  bool bReturnVertices, bool bReturnEdges);
458 protected:
460  int m_nVersion;
461  GNMGFID m_nGID;
462  GNMGFID m_nVirtualConnectionGID;
463  OGRLayer* m_poMetadataLayer;
464  OGRLayer* m_poGraphLayer;
465  OGRLayer* m_poFeaturesLayer;
466 
467  GDALDriver *m_poLayerDriver;
468 
469  std::map<GNMGFID, CPLString> m_moFeatureFIDMap;
470  std::vector<OGRLayer*> m_apoLayers;
471  std::vector<GNMRule> m_asRules;
472  bool m_bIsRulesChanged;
473 
474  GNMGraph m_oGraph;
475  bool m_bIsGraphLoaded;
477 };
478 
486 class GNMGenericLayer : public OGRLayer
487 {
488 public:
489  GNMGenericLayer(OGRLayer* poLayer, GNMGenericNetwork* poNetwork);
490  virtual ~GNMGenericLayer();
491 
492  // OGRLayer Interface
493 
494  virtual OGRGeometry *GetSpatialFilter() override;
495  virtual void SetSpatialFilter( OGRGeometry * ) override;
496  virtual void SetSpatialFilterRect( double dfMinX, double dfMinY,
497  double dfMaxX, double dfMaxY ) override;
498 
499  virtual void SetSpatialFilter( int iGeomField, OGRGeometry * ) override;
500  virtual void SetSpatialFilterRect( int iGeomField,
501  double dfMinX, double dfMinY,
502  double dfMaxX, double dfMaxY ) override;
503 
504  virtual OGRErr SetAttributeFilter( const char * ) override;
505 
506  virtual void ResetReading() override;
507  virtual OGRFeature *GetNextFeature() override;
508  virtual OGRErr SetNextByIndex( GIntBig nIndex ) override;
509 
510  virtual OGRErr DeleteFeature( GIntBig nFID ) override;
511 
512  virtual const char *GetName() override;
513  virtual OGRwkbGeometryType GetGeomType() override;
514  virtual OGRFeatureDefn *GetLayerDefn() override;
515  virtual int FindFieldIndex( const char *pszFieldName, int bExactMatch ) override;
516 
517  virtual OGRSpatialReference *GetSpatialRef() override;
518 
519  virtual GIntBig GetFeatureCount( int bForce = TRUE ) override;
520  virtual OGRErr GetExtent(OGREnvelope *psExtent, int bForce = TRUE) override;
521  virtual OGRErr GetExtent(int iGeomField, OGREnvelope *psExtent,
522  int bForce = TRUE) override;
523 
524  virtual int TestCapability( const char * ) override;
525 
526  virtual OGRErr CreateField( OGRFieldDefn *poField,
527  int bApproxOK = TRUE ) override;
528  virtual OGRErr DeleteField( int iField ) override;
529  virtual OGRErr ReorderFields( int* panMap ) override;
530  virtual OGRErr AlterFieldDefn( int iField, OGRFieldDefn* poNewFieldDefn,
531  int nFlagsIn ) override;
532 
533  virtual OGRErr CreateGeomField( OGRGeomFieldDefn *poField,
534  int bApproxOK = TRUE ) override;
535 
536  virtual OGRErr SyncToDisk() override;
537 
538  virtual OGRStyleTable *GetStyleTable() override;
539  virtual void SetStyleTableDirectly( OGRStyleTable *poStyleTable ) override;
540 
541  virtual void SetStyleTable(OGRStyleTable *poStyleTable) override;
542 
543  virtual OGRErr StartTransaction() override;
544  virtual OGRErr CommitTransaction() override;
545  virtual OGRErr RollbackTransaction() override;
546 
547  virtual const char *GetFIDColumn() override;
548  virtual const char *GetGeometryColumn() override;
549 
550  virtual OGRErr SetIgnoredFields( const char **papszFields ) override;
551 
553  OGRErr Intersection( OGRLayer *pLayerMethod,
554  OGRLayer *pLayerResult,
555  char** papszOptions = nullptr,
556  GDALProgressFunc pfnProgress = nullptr,
557  void * pProgressArg = nullptr );
559  OGRErr Union( OGRLayer *pLayerMethod,
560  OGRLayer *pLayerResult,
561  char** papszOptions = nullptr,
562  GDALProgressFunc pfnProgress = nullptr,
563  void * pProgressArg = nullptr );
565  OGRErr SymDifference( OGRLayer *pLayerMethod,
566  OGRLayer *pLayerResult,
567  char** papszOptions,
568  GDALProgressFunc pfnProgress,
569  void * pProgressArg );
571  OGRErr Identity( OGRLayer *pLayerMethod,
572  OGRLayer *pLayerResult,
573  char** papszOptions = nullptr,
574  GDALProgressFunc pfnProgress = nullptr,
575  void * pProgressArg = nullptr );
577  OGRErr Update( OGRLayer *pLayerMethod,
578  OGRLayer *pLayerResult,
579  char** papszOptions = nullptr,
580  GDALProgressFunc pfnProgress = nullptr,
581  void * pProgressArg = nullptr );
583  OGRErr Clip( OGRLayer *pLayerMethod,
584  OGRLayer *pLayerResult,
585  char** papszOptions = nullptr,
586  GDALProgressFunc pfnProgress = nullptr,
587  void * pProgressArg = nullptr );
589  OGRErr Erase( OGRLayer *pLayerMethod,
590  OGRLayer *pLayerResult,
591  char** papszOptions = nullptr,
592  GDALProgressFunc pfnProgress = nullptr,
593  void * pProgressArg = nullptr );
594 
597 
600 
602  /* consider these private */
603  OGRErr InitializeIndexSupport( const char * );
604  OGRLayerAttrIndex *GetIndex();
606 
607 protected:
609  virtual OGRErr ISetFeature( OGRFeature *poFeature ) override;
610  virtual OGRErr ICreateFeature( OGRFeature *poFeature ) override;
611 
612 protected:
613  CPLString m_soLayerName;
614  OGRLayer *m_poLayer;
615  GNMGenericNetwork* m_poNetwork;
616  std::map<GNMGFID, GIntBig> m_mnFIDMap;
618 };
619 
620 typedef enum
621 { GRTConnection = 0
623 } GNMRuleType;
624 
634 // cppcheck-suppress copyCtorAndEqOperator
635 class CPL_DLL GNMRule
636 {
637 public:
639  GNMRule();
641  explicit GNMRule(const std::string &oRule );
643  explicit GNMRule(const char* pszRule);
645  GNMRule(const GNMRule &oRule);
646  virtual ~GNMRule();
651  virtual bool IsValid() const;
656  virtual bool IsAcceptAny() const;
662  virtual GNMRuleType GetType() const;
671  virtual bool CanConnect(const CPLString &soSrcLayerName,
672  const CPLString &soTgtLayerName,
673  const CPLString &soConnLayerName = "");
675  virtual CPLString GetSourceLayerName() const;
677  virtual CPLString GetTargetLayerName() const;
679  virtual CPLString GetConnectorLayerName() const;
681  const char* c_str() const;
683  operator const char* (void) const;
684 protected:
686  virtual bool ParseRuleString();
687 protected:
688  CPLString m_soSrcLayerName;
689  CPLString m_soTgtLayerName;
690  CPLString m_soConnLayerName;
691  bool m_bAllow;
692  bool m_bValid;
693  bool m_bAny;
694  CPLString m_soRuleString;
696 };
697 
705 {
706 public:
709 
710  // OGRLayer
711  virtual void ResetReading() override;
712  virtual OGRFeature *GetNextFeature() override;
713  virtual OGRErr SetNextByIndex( GIntBig nIndex ) override;
714  virtual OGRFeature *GetFeature( GIntBig nFID ) override;
715  virtual OGRFeatureDefn *GetLayerDefn() override;
716  virtual GIntBig GetFeatureCount( int bForce = TRUE ) override;
717  virtual int TestCapability( const char * pszCap ) override;
718  virtual OGRErr CreateField( OGRFieldDefn *poField, int bApproxOK = TRUE ) override;
719  virtual OGRErr CreateGeomField( OGRGeomFieldDefn *poField,
720  int bApproxOK = TRUE ) override;
721  virtual const char *GetFIDColumn() override;
722  virtual const char *GetGeometryColumn() override;
723  virtual OGRSpatialReference *GetSpatialRef() override;
724 
725  // OGRGNMWrappedResultLayer
726  virtual OGRErr InsertFeature(OGRFeature* poFeature,
727  const CPLString &soLayerName, int nPathNo,
728  bool bIsEdge);
729 protected:
730  virtual OGRErr ISetFeature( OGRFeature *poFeature ) override;
731  virtual OGRErr ICreateFeature( OGRFeature *poFeature ) override;
732 protected:
734  GDALDataset *poDS;
735  OGRLayer *poLayer;
737 };
738 
739 #endif // __cplusplus
740 
741 #endif // GNM
virtual OGRErr ISetFeature(OGRFeature *poFeature) CPL_WARN_UNUSED_RESULT
Rewrite an existing feature.
Definition: ogrlayer.cpp:598
virtual OGRErr CreateField(OGRFieldDefn *poField, int bApproxOK=TRUE) override
Create a new field on a layer.
Definition: gnmresultlayer.cpp:98
virtual OGRErr SetNextByIndex(GIntBig nIndex) override
Move read cursor to the nIndex'th feature in the current resultset.
Definition: gnmresultlayer.cpp:73
virtual OGRSpatialReference * GetSpatialRef() override
Fetch the spatial reference system for this layer.
Definition: gnmlayer.cpp:270
virtual OGRErr DeleteLayer(int iLayer)
Delete the indicated layer from the datasource.
Definition: gdaldataset.cpp:4589
GNM layer which represents a geography network layer of generic format.
Definition: gnm.h:486
OGRErr Intersection(OGRLayer *pLayerMethod, OGRLayer *pLayerResult, char **papszOptions=nullptr, GDALProgressFunc pfnProgress=nullptr, void *pProgressArg=nullptr)
Intersection.
Definition: gnmlayer.cpp:67
virtual OGRLayer * GetLayer(int iLayer)
Fetch a layer by index.
Definition: gdaldataset.cpp:6039
virtual OGRErr ICreateFeature(OGRFeature *poFeature) CPL_WARN_UNUSED_RESULT
Create and write a new feature within a layer.
Definition: ogrlayer.cpp:637
virtual OGRErr ISetFeature(OGRFeature *poFeature) override
Rewrite an existing feature.
Definition: gnmresultlayer.cpp:207
virtual void FlushCache(void)
Flush all write cached data to disk.
Definition: gdaldataset.cpp:395
virtual OGRErr StartTransaction() override
For datasources which support transactions, StartTransaction creates a transaction.
Definition: gnmlayer.cpp:348
Concrete representation of a multi-vertex line.
Definition: ogr_geometry.h:1241
OGRErr Identity(OGRLayer *pLayerMethod, OGRLayer *pLayerResult, char **papszOptions=nullptr, GDALProgressFunc pfnProgress=nullptr, void *pProgressArg=nullptr)
Identity.
Definition: gnmlayer.cpp:93
OGRErr Erase(OGRLayer *pLayerMethod, OGRLayer *pLayerResult, char **papszOptions=nullptr, GDALProgressFunc pfnProgress=nullptr, void *pProgressArg=nullptr)
Erase.
Definition: gnmlayer.cpp:117
Definition of a geometry field of an OGRFeatureDefn.
Definition: ogr_feature.h:182
virtual OGRFeatureDefn * GetLayerDefn() override
Fetch the schema information for this layer.
Definition: gnmlayer.cpp:363
virtual OGRErr CreateGeomField(OGRGeomFieldDefn *poField, int bApproxOK=TRUE) override
Create a new geometry field on a layer.
Definition: gnmlayer.cpp:323
virtual const char * GetFIDColumn() override
This method returns the name of the underlying database column being used as the FID column...
Definition: gnmresultlayer.cpp:109
virtual ~GNMGenericLayer()
~GNMGenericLayer
Definition: gnmlayer.cpp:50
virtual GIntBig GetFeatureCount(int bForce=TRUE) override
Fetch the feature count in this layer.
Definition: gnmlayer.cpp:275
virtual const char * GetGeometryColumn() override
This method returns the name of the underlying database column being used as the geometry column...
Definition: gnmresultlayer.cpp:114
virtual const char * GetProjectionRef(void)
Fetch the projection definition string for this dataset.
Definition: gdaldataset.cpp:823
virtual const char * GetGeometryColumn() override
This method returns the name of the underlying database column being used as the geometry column...
Definition: gnmlayer.cpp:57
GNM class which represents a geography network of generic format.
Definition: gnm.h:188
virtual OGRGeometry * GetSpatialFilter() override
This method returns the current spatial filter for this layer.
Definition: gnmlayer.cpp:176
virtual GIntBig GetFeatureCount(int bForce=TRUE) override
Fetch the feature count in this layer.
Definition: gnmresultlayer.cpp:88
OGRErr Clip(OGRLayer *pLayerMethod, OGRLayer *pLayerResult, char **papszOptions=nullptr, GDALProgressFunc pfnProgress=nullptr, void *pProgressArg=nullptr)
Clip.
Definition: gnmlayer.cpp:109
virtual OGRErr RollbackTransaction() override
For datasources which support transactions, RollbackTransaction will roll back a datasource to its st...
Definition: gnmlayer.cpp:358
virtual void ResetReading() override
Reset feature reading to start on the first feature.
Definition: gnmresultlayer.cpp:63
virtual OGRFeature * GetFeatureByGlobalFID(GNMGFID nGFID)=0
GetFeatureByGlobalFID search all network layers for given feature identificator.
virtual OGRFeatureDefn * GetLayerDefn() override
Fetch the schema information for this layer.
Definition: gnmresultlayer.cpp:83
Convenient string class based on std::string.
Definition: cpl_string.h:327
OGRErr Union(OGRLayer *pLayerMethod, OGRLayer *pLayerResult, char **papszOptions=nullptr, GDALProgressFunc pfnProgress=nullptr, void *pProgressArg=nullptr)
Union.
Definition: gnmlayer.cpp:77
Definition of a feature class or feature layer.
Definition: ogr_feature.h:259
virtual OGRStyleTable * GetStyleTable() override
Returns layer style table.
Definition: gnmlayer.cpp:333
OGRErr Update(OGRLayer *pLayerMethod, OGRLayer *pLayerResult, char **papszOptions=nullptr, GDALProgressFunc pfnProgress=nullptr, void *pProgressArg=nullptr)
Update.
Definition: gnmlayer.cpp:101
virtual CPLErr Delete()=0
Delete network.
virtual OGRErr SetIgnoredFields(const char **papszFields) override
Set which fields can be omitted when retrieving features from the layer.
Definition: gnmlayer.cpp:62
virtual const char * GetFIDColumn() override
This method returns the name of the underlying database column being used as the FID column...
Definition: gnmlayer.cpp:52
virtual OGRErr CreateGeomField(OGRGeomFieldDefn *poField, int bApproxOK=TRUE) override
Create a new geometry field on a layer.
Definition: gnmresultlayer.cpp:103
virtual OGRLayer * CopyLayer(OGRLayer *poSrcLayer, const char *pszNewName, char **papszOptions=nullptr)
Duplicate an existing layer.
Definition: gdaldataset.cpp:4225
virtual const char * GetName() override
Return the layer name.
Definition: gnmlayer.cpp:255
Definition of an attribute of an OGRFeatureDefn.
Definition: ogr_feature.h:92
virtual OGRErr SetNextByIndex(GIntBig nIndex) override
Move read cursor to the nIndex'th feature in the current resultset.
Definition: gnmlayer.cpp:225
OGRwkbGeometryType
List of well known binary geometry types.
Definition: ogr_core.h:317
OGRErr SymDifference(OGRLayer *pLayerMethod, OGRLayer *pLayerResult, char **papszOptions, GDALProgressFunc pfnProgress, void *pProgressArg)
SymDifference.
Definition: gnmlayer.cpp:85
static GDALDataset * Open(const char *pszFilename, unsigned int nOpenFlags=0, const char *const *papszAllowedDrivers=nullptr, const char *const *papszOpenOptions=nullptr, const char *const *papszSiblingFiles=nullptr)
Definition: gdal_priv.h:602
OGRGNMWrappedResultLayer(GDALDataset *poDS, OGRLayer *poLayer)
Constructor.
Definition: gnmresultlayer.cpp:36
virtual int TestCapability(const char *) override
Test if this layer supported the named capability.
Definition: gnmlayer.cpp:290
A collection of OGRLineString.
Definition: ogr_geometry.h:2747
The simple graph class, which holds the appropriate for calculations graph in memory (based on STL co...
Definition: gnmgraph.h:89
Abstract base class for all geometry classes.
Definition: ogr_geometry.h:286
Classes related to registration of format support, and opening datasets.
virtual void ResetReading() override
Reset feature reading to start on the first feature.
Definition: gnmlayer.cpp:209
virtual OGRwkbGeometryType GetGeomType() override
Return the layer geometry type.
Definition: gnmlayer.cpp:260
GIntBig GetFeaturesRead()
GetFeaturesRead.
Definition: gnmlayer.cpp:125
virtual OGRErr SyncToDisk() override
Flush pending changes to disk.
Definition: gnmlayer.cpp:328
virtual OGRErr ReorderFields(int *panMap) override
Reorder all the fields of a layer.
Definition: gnmlayer.cpp:309
Class for dataset open functions.
Definition: gdal_priv.h:265
virtual OGRFeature * GetNextFeature() override
Fetch the next available feature from this layer.
Definition: gnmlayer.cpp:214
General GNM class which represents a geography network of common format.
Definition: gnm.h:74
virtual OGRErr ICreateFeature(OGRFeature *poFeature) override
Create and write a new feature within a layer.
Definition: gnmresultlayer.cpp:212
virtual OGRSpatialReference * GetSpatialRef() override
Fetch the spatial reference system for this layer.
Definition: gnmresultlayer.cpp:119
virtual OGRErr CreateField(OGRFieldDefn *poField, int bApproxOK=TRUE) override
Create a new field on a layer.
Definition: gnmlayer.cpp:295
virtual OGRErr CommitTransaction() override
For datasources which support transactions, CommitTransaction commits a transaction.
Definition: gnmlayer.cpp:353
virtual int CloseDependentDatasets()
Drop references to any other datasets referenced by this dataset.
Definition: gdaldataset.cpp:3398
virtual int GetVersion() const
GetVersion return the network version if applicable.
Definition: gnm.h:133
virtual char ** GetFileList(void)
Fetch files forming dataset.
Definition: gdaldataset.cpp:2344
virtual OGRErr AlterFieldDefn(int iField, OGRFieldDefn *poNewFieldDefn, int nFlagsIn) override
Alter the definition of an existing field on a layer.
Definition: gnmlayer.cpp:314
This class represents an OpenGIS Spatial Reference System, and contains methods for converting betwee...
Definition: ogr_spatialref.h:147
virtual CPLErr Create(const char *pszFilename, char **papszOptions)=0
Create network system layers.
virtual void SetSpatialFilterRect(double dfMinX, double dfMinY, double dfMaxX, double dfMaxY) override
Set a new rectangular spatial filter.
Definition: gnmlayer.cpp:186
The simple class for rules.
Definition: gnm.h:635
virtual OGRLayer * GetPath(GNMGFID nStartFID, GNMGFID nEndFID, GNMGraphAlgorithmType eAlgorithm, char **papszOptions)=0
Create path between start and end GFIDs.
virtual OGRFeature * GetFeature(GIntBig nFID) override
Fetch a feature by its identifier.
Definition: gnmresultlayer.cpp:78
Point class.
Definition: ogr_geometry.h:809
int AttributeFilterEvaluationNeedsGeometry()
AttributeFilterEvaluationNeedsGeometry.
Definition: gnmlayer.cpp:130
This class represents a layer of simple features, with access methods.
Definition: ogrsf_frmts.h:70
GNMGenericLayer(OGRLayer *poLayer, GNMGenericNetwork *poNetwork)
GNMGenericLayer.
Definition: gnmlayer.cpp:38
virtual OGRErr InsertFeature(OGRFeature *poFeature, const CPLString &soLayerName, int nPathNo, bool bIsEdge)
Undocumented.
Definition: gnmresultlayer.cpp:125
A simple feature, including geometry and attributes.
Definition: ogr_feature.h:353
This class represents a style table.
Definition: ogr_featurestyle.h:84
virtual CPLErr DisconnectAll()=0
DisconnectAll method clears the network graph.
A set of associated raster bands, usually from one file.
Definition: gdal_priv.h:335
long long GIntBig
Large signed integer type (generally 64-bit integer type).
Definition: cpl_port.h:246
virtual void SetStyleTableDirectly(OGRStyleTable *poStyleTable) override
Set layer style table.
Definition: gnmlayer.cpp:338
virtual int GetLayerCount()
Get the number of layers in this dataset.
Definition: gdaldataset.cpp:6012
virtual void SetStyleTable(OGRStyleTable *poStyleTable) override
Set layer style table.
Definition: gnmlayer.cpp:343
virtual OGRErr SetAttributeFilter(const char *) override
Set a new attribute query.
Definition: gnmlayer.cpp:204
virtual OGRErr DeleteFeature(GIntBig nFID) override
Delete feature from layer.
Definition: gnmlayer.cpp:230
int OGRErr
Simple container for a bounding region.
Definition: ogr_core.h:290
The OGRGNMWrappedResultLayer class for search paths queries results.
Definition: gnm.h:704
virtual OGRErr GetExtent(OGREnvelope *psExtent, int bForce=TRUE) override
Fetch the extent of this layer.
Definition: gnmlayer.cpp:280
virtual int TestCapability(const char *)
Test if capability is available.
Definition: gdaldataset.cpp:6372
Format specific driver.
Definition: gdal_priv.h:1377
virtual OGRErr DeleteField(int iField) override
Delete an existing field on a layer.
Definition: gnmlayer.cpp:300
virtual int TestCapability(const char *pszCap) override
Test if this layer supported the named capability.
Definition: gnmresultlayer.cpp:93
virtual void SetSpatialFilter(OGRGeometry *) override
Set a new spatial filter.
Definition: gnmlayer.cpp:181
virtual OGRFeature * GetNextFeature() override
Fetch the next available feature from this layer.
Definition: gnmresultlayer.cpp:68
CPLErr
Error category.
Definition: cpl_error.h:52
virtual int FindFieldIndex(const char *pszFieldName, int bExactMatch) override
Find the index of field in the layer.
Definition: gnmlayer.cpp:265

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