GDAL
gnm.h
1 /******************************************************************************
2  * $Id: gnm.h c3122bfce67aa8278d0163c0d41cfe0ab05bd691 2019-03-23 21:38:44 +0100 Even Rouault $
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  const OGRSpatialReference* GetSpatialRef() const override {
82  return GetSpatialRefFromOldGetProjectionRef();
83  }
84  virtual char **GetFileList(void) override;
85 
86  // GNMNetwork Interface
87 
108  virtual CPLErr Create( const char* pszFilename, char** papszOptions ) = 0;
109 
115  virtual CPLErr Open( GDALOpenInfo* poOpenInfo ) = 0;
116 
121  virtual CPLErr Delete() = 0;
122 
129  virtual const char* GetName() const;
130 
135  virtual int GetVersion() const { return 0;}
136 
141  virtual CPLErr DisconnectAll () = 0;
142 
150  virtual OGRFeature *GetFeatureByGlobalFID (GNMGFID nGFID) = 0;
151 
162  virtual OGRLayer *GetPath (GNMGFID nStartFID, GNMGFID nEndFID,
163  GNMGraphAlgorithmType eAlgorithm, char** papszOptions) = 0;
164 protected:
171  virtual int CheckNetworkExist( const char* pszFilename,
172  char** papszOptions ) = 0;
173 
175  const char *_GetProjectionRef(void) override;
177 
178 protected:
180  CPLString m_soName;
181  CPLString m_soSRS;
183 };
184 
185 class GNMRule;
187 
194 class CPL_DLL GNMGenericNetwork: public GNMNetwork
195 {
196 public:
198  virtual ~GNMGenericNetwork();
199 
200  // GDALDataset Interface
201 
202  virtual int GetLayerCount() override;
203  virtual OGRLayer *GetLayer(int) override;
204  virtual OGRErr DeleteLayer(int) override;
205 
206  virtual int TestCapability( const char * ) override;
207 
208  virtual OGRLayer *CopyLayer( OGRLayer *poSrcLayer,
209  const char *pszNewName,
210  char **papszOptions = nullptr ) override;
211 
212  virtual int CloseDependentDatasets() override;
213  virtual void FlushCache(void) override;
214 
215  // GNMNetwork Interface
216 
217  virtual CPLErr Create( const char* pszFilename, char** papszOptions ) override = 0;
218  virtual CPLErr Delete() override;
219 
220  virtual int GetVersion() const override;
225  virtual GNMGFID GetNewGlobalFID();
226 
233  virtual CPLString GetAlgorithmName(GNMDirection eAlgorithm, bool bShortName);
234 
242  virtual CPLErr AddFeatureGlobalFID(GNMGFID nFID, const char* pszLayerName);
243 
257  virtual CPLErr ConnectFeatures (GNMGFID nSrcFID,
258  GNMGFID nTgtFID,
259  GNMGFID nConFID = -1,
260  double dfCost = 1,
261  double dfInvCost = 1,
262  GNMDirection eDir = GNM_EDGE_DIR_BOTH);
263 
271  virtual CPLErr DisconnectFeatures (GNMGFID nSrcFID,
272  GNMGFID nTgtFID,
273  GNMGFID nConFID);
274 
281  virtual CPLErr DisconnectFeaturesWithId(GNMGFID nFID);
282 
295  virtual CPLErr ReconnectFeatures (GNMGFID nSrcFID,
296  GNMGFID nTgtFID,
297  GNMGFID nConFID,
298  double dfCost = 1,
299  double dfInvCost = 1,
300  GNMDirection eDir = GNM_EDGE_DIR_BOTH);
301 
302  virtual CPLErr DisconnectAll() override;
303 
304  virtual OGRFeature *GetFeatureByGlobalFID(GNMGFID nFID) override;
305 
340  virtual CPLErr CreateRule (const char *pszRuleStr);
341 
346  virtual CPLErr DeleteAllRules();
347 
353  virtual CPLErr DeleteRule(const char *pszRuleStr);
354 
359  virtual char** GetRules() const;
360 
385  virtual CPLErr ConnectPointsByLines (char **papszLayerList,
386  double dfTolerance,
387  double dfCost,
388  double dfInvCost,
389  GNMDirection eDir);
390 
397  virtual CPLErr ChangeBlockState (GNMGFID nFID, bool bIsBlock);
398 
407  virtual CPLErr ChangeAllBlockState (bool bIsBlock = false);
408 
409  virtual OGRLayer *GetPath (GNMGFID nStartFID, GNMGFID nEndFID,
410  GNMGraphAlgorithmType eAlgorithm, char** papszOptions) override;
411 protected:
418  virtual CPLErr CheckLayerDriver(const char* pszDefaultDriverName,
419  char** papszOptions);
425  virtual bool CheckStorageDriverSupport(const char* pszDriverName) = 0;
426 protected:
428  virtual CPLErr CreateMetadataLayer( GDALDataset* const pDS, int nVersion,
429  size_t nFieldSize = 1024 );
430  virtual CPLErr StoreNetworkSrs();
431  virtual CPLErr LoadNetworkSrs();
432  virtual CPLErr CreateGraphLayer( GDALDataset* const pDS );
433  virtual CPLErr CreateFeaturesLayer( GDALDataset* const pDS );
434  virtual CPLErr LoadMetadataLayer( GDALDataset* const pDS );
435  virtual CPLErr LoadGraphLayer( GDALDataset* const pDS );
436  virtual CPLErr LoadGraph();
437  virtual CPLErr LoadFeaturesLayer( GDALDataset* const pDS );
438  virtual CPLErr DeleteMetadataLayer() = 0;
439  virtual CPLErr DeleteGraphLayer() = 0;
440  virtual CPLErr DeleteFeaturesLayer() = 0;
441  virtual CPLErr LoadNetworkLayer(const char* pszLayername) = 0;
442  virtual CPLErr DeleteNetworkLayers() = 0;
443  virtual void ConnectPointsByMultiline(GIntBig nFID,
444  const OGRMultiLineString *poMultiLineString,
445  const std::vector<OGRLayer *> &paPointLayers,
446  double dfTolerance, double dfCost,
447  double dfInvCost, GNMDirection eDir);
448  virtual void ConnectPointsByLine(GIntBig nFID,
449  const OGRLineString *poLineString,
450  const std::vector<OGRLayer *> &paPointLayers,
451  double dfTolerance, double dfCost,
452  double dfInvCost, GNMDirection eDir);
453  virtual GNMGFID FindNearestPoint(const OGRPoint* poPoint,
454  const std::vector<OGRLayer*>& paPointLayers,
455  double dfTolerance);
456  virtual OGRFeature* FindConnection(GNMGFID nSrcFID, GNMGFID nTgtFID,
457  GNMGFID nConFID);
458  virtual void SaveRules();
459  virtual GNMGFID GetNewVirtualFID();
460  virtual void FillResultLayer(OGRGNMWrappedResultLayer* poResLayer,
461  const GNMPATH &path, int nNoOfPath,
462  bool bReturnVertices, bool bReturnEdges);
464 protected:
466  int m_nVersion;
467  GNMGFID m_nGID;
468  GNMGFID m_nVirtualConnectionGID;
469  OGRLayer* m_poMetadataLayer;
470  OGRLayer* m_poGraphLayer;
471  OGRLayer* m_poFeaturesLayer;
472 
473  GDALDriver *m_poLayerDriver;
474 
475  std::map<GNMGFID, CPLString> m_moFeatureFIDMap;
476  std::vector<OGRLayer*> m_apoLayers;
477  std::vector<GNMRule> m_asRules;
478  bool m_bIsRulesChanged;
479 
480  GNMGraph m_oGraph;
481  bool m_bIsGraphLoaded;
483 };
484 
492 class GNMGenericLayer : public OGRLayer
493 {
494 public:
495  GNMGenericLayer(OGRLayer* poLayer, GNMGenericNetwork* poNetwork);
496  virtual ~GNMGenericLayer();
497 
498  // OGRLayer Interface
499 
500  virtual OGRGeometry *GetSpatialFilter() override;
501  virtual void SetSpatialFilter( OGRGeometry * ) override;
502  virtual void SetSpatialFilterRect( double dfMinX, double dfMinY,
503  double dfMaxX, double dfMaxY ) override;
504 
505  virtual void SetSpatialFilter( int iGeomField, OGRGeometry * ) override;
506  virtual void SetSpatialFilterRect( int iGeomField,
507  double dfMinX, double dfMinY,
508  double dfMaxX, double dfMaxY ) override;
509 
510  virtual OGRErr SetAttributeFilter( const char * ) override;
511 
512  virtual void ResetReading() override;
513  virtual OGRFeature *GetNextFeature() override;
514  virtual OGRErr SetNextByIndex( GIntBig nIndex ) override;
515 
516  virtual OGRErr DeleteFeature( GIntBig nFID ) override;
517 
518  virtual const char *GetName() override;
519  virtual OGRwkbGeometryType GetGeomType() override;
520  virtual OGRFeatureDefn *GetLayerDefn() override;
521  virtual int FindFieldIndex( const char *pszFieldName, int bExactMatch ) override;
522 
523  virtual OGRSpatialReference *GetSpatialRef() override;
524 
525  virtual GIntBig GetFeatureCount( int bForce = TRUE ) override;
526  virtual OGRErr GetExtent(OGREnvelope *psExtent, int bForce = TRUE) override;
527  virtual OGRErr GetExtent(int iGeomField, OGREnvelope *psExtent,
528  int bForce = TRUE) override;
529 
530  virtual int TestCapability( const char * ) override;
531 
532  virtual OGRErr CreateField( OGRFieldDefn *poField,
533  int bApproxOK = TRUE ) override;
534  virtual OGRErr DeleteField( int iField ) override;
535  virtual OGRErr ReorderFields( int* panMap ) override;
536  virtual OGRErr AlterFieldDefn( int iField, OGRFieldDefn* poNewFieldDefn,
537  int nFlagsIn ) override;
538 
539  virtual OGRErr CreateGeomField( OGRGeomFieldDefn *poField,
540  int bApproxOK = TRUE ) override;
541 
542  virtual OGRErr SyncToDisk() override;
543 
544  virtual OGRStyleTable *GetStyleTable() override;
545  virtual void SetStyleTableDirectly( OGRStyleTable *poStyleTable ) override;
546 
547  virtual void SetStyleTable(OGRStyleTable *poStyleTable) override;
548 
549  virtual OGRErr StartTransaction() override;
550  virtual OGRErr CommitTransaction() override;
551  virtual OGRErr RollbackTransaction() override;
552 
553  virtual const char *GetFIDColumn() override;
554  virtual const char *GetGeometryColumn() override;
555 
556  virtual OGRErr SetIgnoredFields( const char **papszFields ) override;
557 
559  OGRErr Intersection( OGRLayer *pLayerMethod,
560  OGRLayer *pLayerResult,
561  char** papszOptions = nullptr,
562  GDALProgressFunc pfnProgress = nullptr,
563  void * pProgressArg = nullptr );
565  OGRErr Union( OGRLayer *pLayerMethod,
566  OGRLayer *pLayerResult,
567  char** papszOptions = nullptr,
568  GDALProgressFunc pfnProgress = nullptr,
569  void * pProgressArg = nullptr );
571  OGRErr SymDifference( OGRLayer *pLayerMethod,
572  OGRLayer *pLayerResult,
573  char** papszOptions,
574  GDALProgressFunc pfnProgress,
575  void * pProgressArg );
577  OGRErr Identity( OGRLayer *pLayerMethod,
578  OGRLayer *pLayerResult,
579  char** papszOptions = nullptr,
580  GDALProgressFunc pfnProgress = nullptr,
581  void * pProgressArg = nullptr );
583  OGRErr Update( OGRLayer *pLayerMethod,
584  OGRLayer *pLayerResult,
585  char** papszOptions = nullptr,
586  GDALProgressFunc pfnProgress = nullptr,
587  void * pProgressArg = nullptr );
589  OGRErr Clip( OGRLayer *pLayerMethod,
590  OGRLayer *pLayerResult,
591  char** papszOptions = nullptr,
592  GDALProgressFunc pfnProgress = nullptr,
593  void * pProgressArg = nullptr );
595  OGRErr Erase( OGRLayer *pLayerMethod,
596  OGRLayer *pLayerResult,
597  char** papszOptions = nullptr,
598  GDALProgressFunc pfnProgress = nullptr,
599  void * pProgressArg = nullptr );
600 
603 
606 
608  /* consider these private */
609  OGRErr InitializeIndexSupport( const char * );
610  OGRLayerAttrIndex *GetIndex();
612 
613 protected:
615  virtual OGRErr ISetFeature( OGRFeature *poFeature ) override;
616  virtual OGRErr ICreateFeature( OGRFeature *poFeature ) override;
617 
618 protected:
619  CPLString m_soLayerName;
620  OGRLayer *m_poLayer;
621  GNMGenericNetwork* m_poNetwork;
622  std::map<GNMGFID, GIntBig> m_mnFIDMap;
624 };
625 
626 typedef enum
627 { GRTConnection = 0
629 } GNMRuleType;
630 
640 class CPL_DLL GNMRule
641 {
642 public:
644  GNMRule();
646  explicit GNMRule(const std::string &oRule );
648  explicit GNMRule(const char* pszRule);
650  GNMRule(const GNMRule &oRule);
651 
653  GNMRule& operator=(const GNMRule&) = default;
654 
655  virtual ~GNMRule();
660  virtual bool IsValid() const;
665  virtual bool IsAcceptAny() const;
671  virtual GNMRuleType GetType() const;
680  virtual bool CanConnect(const CPLString &soSrcLayerName,
681  const CPLString &soTgtLayerName,
682  const CPLString &soConnLayerName = "");
684  virtual CPLString GetSourceLayerName() const;
686  virtual CPLString GetTargetLayerName() const;
688  virtual CPLString GetConnectorLayerName() const;
690  const char* c_str() const;
692  operator const char* (void) const;
693 protected:
695  virtual bool ParseRuleString();
696 protected:
697  CPLString m_soSrcLayerName;
698  CPLString m_soTgtLayerName;
699  CPLString m_soConnLayerName;
700  bool m_bAllow;
701  bool m_bValid;
702  bool m_bAny;
703  CPLString m_soRuleString;
705 };
706 
714 {
715 public:
718 
719  // OGRLayer
720  virtual void ResetReading() override;
721  virtual OGRFeature *GetNextFeature() override;
722  virtual OGRErr SetNextByIndex( GIntBig nIndex ) override;
723  virtual OGRFeature *GetFeature( GIntBig nFID ) override;
724  virtual OGRFeatureDefn *GetLayerDefn() override;
725  virtual GIntBig GetFeatureCount( int bForce = TRUE ) override;
726  virtual int TestCapability( const char * pszCap ) override;
727  virtual OGRErr CreateField( OGRFieldDefn *poField, int bApproxOK = TRUE ) override;
728  virtual OGRErr CreateGeomField( OGRGeomFieldDefn *poField,
729  int bApproxOK = TRUE ) override;
730  virtual const char *GetFIDColumn() override;
731  virtual const char *GetGeometryColumn() override;
732  virtual OGRSpatialReference *GetSpatialRef() override;
733 
734  // OGRGNMWrappedResultLayer
735  virtual OGRErr InsertFeature(OGRFeature* poFeature,
736  const CPLString &soLayerName, int nPathNo,
737  bool bIsEdge);
738 protected:
739  virtual OGRErr ISetFeature( OGRFeature *poFeature ) override;
740  virtual OGRErr ICreateFeature( OGRFeature *poFeature ) override;
741 protected:
743  GDALDataset *poDS;
744  OGRLayer *poLayer;
746 };
747 
748 #endif // __cplusplus
749 
750 #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:5150
GNM layer which represents a geography network layer of generic format.
Definition: gnm.h:492
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:6600
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:418
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:1242
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 * 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:194
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:329
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:4786
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:613
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:2748
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:3959
virtual int GetVersion() const
GetVersion return the network version if applicable.
Definition: gnm.h:135
virtual char ** GetFileList(void)
Fetch files forming dataset.
Definition: gdaldataset.cpp:2841
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:156
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:640
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:810
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:354
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:248
const OGRSpatialReference * GetSpatialRef() const override
Fetch the spatial reference for this dataset.
Definition: gnm.h:81
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:6573
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:713
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:6933
Format specific driver.
Definition: gdal_priv.h:1423
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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