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vtdata library
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Public Member Functions | |
| uint | NumEntities () const |
| void | SetNumGeometries (int iNum) |
| void | Reserve (int iNum) |
| bool | ComputeExtent (DRECT &rect) const |
| void | Offset (const DPoint2 &p, bool bSelectedOnly=false) |
| bool | TransformCoords (OCTransform *pTransform, bool progress_callback(int)=0) |
| bool | AppendGeometryFrom (vtFeatureSet *pFromSet) |
| int | AddPolygon (const DPolygon2 &poly) |
| void | SetPolygon (uint num, const DPolygon2 &poly) |
| const DPolygon2 & | GetPolygon (uint num) const |
| DPolygon2 & | GetPolygon (uint num) |
| int | FindSimplePolygon (const DPoint2 &p) const |
| int | FindPolygon (const DPoint2 &p) const |
| int | FixGeometry (double dEpsilon) |
| int | SelectBadFeatures (double dEpsilon) |
| void | CreateIndex (int iSize) |
| void | FreeIndex () |
| virtual bool | IsInsideRect (int iElem, const DRECT &rect) |
| virtual void | CopyGeometry (uint from, uint to) |
| virtual void | SaveGeomToSHP (SHPHandle hSHP, bool progress_callback(int)=0) const |
| virtual void | LoadGeomFromSHP (SHPHandle hSHP, bool progress_callback(int)=0) |
| virtual bool | EarthExtents (DRECT &ext) const |
 Public Member Functions inherited from vtFeatureSet | |
| bool | SaveToSHP (const char *filename, bool progress_callback(int)=0) const |
| bool | LoadFromOGR (OGRLayer *pLayer, bool progress_callback(int)=0) |
| bool | LoadFromSHP (const char *fname, bool progress_callback(int)=0) |
| bool | LoadDataFromDBF (const char *filename, bool progress_callback(int)=0) |
| bool | LoadFieldInfoFromDBF (const char *filename) |
| bool | LoadDataFromCSV (const char *filename, bool progress_callback(int)=0) |
| bool | SaveToKML (const char *filename, bool progress_callback(int)=0) const |
| void | SetFilename (const vtString &str) |
| vtString | GetFilename () const |
| void | SetNumEntities (int iNum) |
| void | AllocateFeatures () |
| OGRwkbGeometryType | GetGeomType () const |
| void | SetGeomType (OGRwkbGeometryType eGeomType) |
| bool | AppendDataFrom (vtFeatureSet *pFromSet) |
| virtual int | NumTotalVertices () const |
| void | SetToDelete (int iFeature) |
| int | ApplyDeletion () |
| void | Select (uint iEnt, bool set=true) |
| bool | IsSelected (uint iEnt) const |
| uint | NumSelected () const |
| void | DeselectAll () |
| void | InvertSelection () |
| int | SelectByCondition (int iField, int iCondition, const char *szValue) |
| void | DeleteSelected () |
| bool | IsDeleted (uint iEnt) |
| int | DoBoxSelect (const DRECT &rect, SelectionType st) |
| void | Pick (uint iEnt, bool set=true) |
| bool | IsPicked (uint iEnt) |
| void | DePickAll () |
| uint | NumFields () const |
| Field * | GetField (int i) |
| const Field * | GetField (int i) const |
| Field * | GetField (const char *name) |
| int | GetFieldIndex (const char *name) const |
| int | AddField (const char *name, FieldType ftype, int string_length=40) |
| int | AddRecord () |
| void | DeleteFields () |
| void | SetValue (uint record, uint field, const char *string) |
| void | SetValue (uint record, uint field, int value) |
| void | SetValue (uint record, uint field, double value) |
| void | SetValue (uint record, uint field, bool value) |
| void | GetValueAsString (uint record, uint field, vtString &str) const |
| void | SetValueFromString (uint iRecord, uint iField, const vtString &str) |
| void | SetValueFromString (uint iRecord, uint iField, const char *str) |
| int | GetIntegerValue (uint iRecord, uint iField) const |
| short | GetShortValue (uint iRecord, uint iField) const |
| float | GetFloatValue (uint iRecord, uint iField) const |
| double | GetDoubleValue (uint iRecord, uint iField) const |
| bool | GetBoolValue (uint iRecord, uint iField) const |
| void | SetProjection (const vtCRS &proj) |
| vtCRS & | GetAtProjection () |
| vtFeature * | GetFeature (uint iIndex) const |
| vtFeature * | GetFirstSelectedFeature () const |
Protected Attributes | |
| DPolyArray | m_Poly |
| SpatialIndex * | m_pIndex |
| Protected Attributes inherited from vtFeatureSet | |
| OGRwkbGeometryType | m_eGeomType |
| std::vector< vtFeature * > | m_Features |
| vtArray< Field * > | m_fields |
| vtCRS | m_proj |
| vtString | m_strFilename |
Additional Inherited Members | |
| Protected Member Functions inherited from vtFeatureSet | |
| void | CopyEntity (uint from, uint to) |
| void | ParseDBFFields (DBFHandle db) |
| void | ParseDBFRecords (DBFHandle db, bool progress_callback(int)=0) |
A set of polygon features. Each polygon is a DPolygon2 object, which consists of a number of rings: one external ring, and any number of internal rings (holes).
| int vtFeatureSetPolygon::FindPolygon | ( | const DPoint2 & | p | ) | const |
Find the first polygon in this feature set which contains the given point.
The index of the polygon is return, or -1 if no polygon was found.
| int vtFeatureSetPolygon::FindSimplePolygon | ( | const DPoint2 & | p | ) | const |
Find the first polygon in this feature set which contains the given point. This method makes the simplification assumption that none of the polygons have holes.
The index of the polygon is return, or -1 if no polygon was found.
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virtual |
If you know how many entities you will be adding to this FeatureSet, is it more efficient to reserve space for that many.
Implements vtFeatureSet.
| int vtFeatureSetPolygon::SelectBadFeatures | ( | double | dEpsilon | ) |
To detect coincident vertices, even between rings, we compare every vertex to every other. It is too troublesome to try to automatically correct these points, so intead we just select them to let the user know which are bad.
1.8.10
