OGR
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#include <ogr_geometry.h>
Public Member Functions | |
OGRPolyhedralSurface () | |
Create an empty PolyhedralSurface. | |
OGRPolyhedralSurface (const OGRPolyhedralSurface &poGeom) | |
Copy constructor. | |
virtual | ~OGRPolyhedralSurface () |
Destructor. | |
OGRPolyhedralSurface & | operator= (const OGRPolyhedralSurface &other) |
Assignment operator. | |
virtual int | WkbSize () const CPL_OVERRIDE |
Returns size of related binary representation. More... | |
virtual const char * | getGeometryName () const CPL_OVERRIDE |
Fetch WKT name for geometry type. More... | |
virtual OGRwkbGeometryType | getGeometryType () const CPL_OVERRIDE |
Returns the WKB Type of PolyhedralSurface. | |
virtual OGRErr | importFromWkb (unsigned char *, int=-1, OGRwkbVariant=wkbVariantOldOgc) CPL_OVERRIDE |
Assign geometry from well known binary data. More... | |
virtual OGRErr | exportToWkb (OGRwkbByteOrder, unsigned char *, OGRwkbVariant=wkbVariantOldOgc) const CPL_OVERRIDE |
Convert a geometry into well known binary format. More... | |
virtual OGRErr | importFromWkt (char **) CPL_OVERRIDE |
Assign geometry from well known text data. More... | |
virtual OGRErr | exportToWkt (char **ppszDstText, OGRwkbVariant=wkbVariantOldOgc) const CPL_OVERRIDE |
Convert a geometry into well known text format. More... | |
virtual int | getDimension () const CPL_OVERRIDE |
Get the dimension of this object. More... | |
virtual void | empty () CPL_OVERRIDE |
Clear geometry information. This restores the geometry to it's initial state after construction, and before assignment of actual geometry. More... | |
virtual OGRGeometry * | clone () const CPL_OVERRIDE |
Make a copy of this object. More... | |
virtual void | getEnvelope (OGREnvelope *psEnvelope) const CPL_OVERRIDE |
Computes and returns the bounding envelope for this geometry in the passed psEnvelope structure. More... | |
virtual void | getEnvelope (OGREnvelope3D *psEnvelope) const CPL_OVERRIDE |
Computes and returns the bounding envelope (3D) for this geometry in the passed psEnvelope structure. More... | |
virtual void | flattenTo2D () CPL_OVERRIDE |
Convert geometry to strictly 2D. In a sense this converts all Z coordinates to 0.0. More... | |
virtual OGRErr | transform (OGRCoordinateTransformation *) CPL_OVERRIDE |
Apply arbitrary coordinate transformation to geometry. More... | |
virtual OGRBoolean | Equals (OGRGeometry *) const CPL_OVERRIDE |
Returns TRUE if two geometries are equivalent. More... | |
virtual double | get_Area () const CPL_OVERRIDE |
Returns the area enclosed. More... | |
virtual OGRErr | PointOnSurface (OGRPoint *) const CPL_OVERRIDE |
This method relates to the SFCOM ISurface::get_PointOnSurface() method. More... | |
virtual OGRBoolean | hasCurveGeometry (int bLookForNonLinear=FALSE) const CPL_OVERRIDE |
Returns if this geometry is or has curve geometry. More... | |
virtual OGRErr | addGeometry (const OGRGeometry *) |
Add a new geometry to a collection. More... | |
OGRErr | addGeometryDirectly (OGRGeometry *poNewGeom) |
Add a geometry directly to the container. More... | |
int | getNumGeometries () const |
Fetch number of geometries in PolyhedralSurface. More... | |
OGRGeometry * | getGeometryRef (int i) |
Fetch geometry from container. More... | |
const OGRGeometry * | getGeometryRef (int i) const |
Fetch geometry from container. More... | |
virtual OGRBoolean | IsEmpty () const CPL_OVERRIDE |
Checks if the PolyhedralSurface is empty. More... | |
virtual void | setCoordinateDimension (int nDimension) CPL_OVERRIDE |
Set the coordinate dimension. More... | |
virtual void | set3D (OGRBoolean bIs3D) CPL_OVERRIDE |
Set the type as 3D geometry. | |
virtual void | setMeasured (OGRBoolean bIsMeasured) CPL_OVERRIDE |
Set the type as Measured. | |
virtual void | swapXY () CPL_OVERRIDE |
Swap x and y coordinates. | |
OGRErr | removeGeometry (int iIndex, int bDelete=TRUE) |
Remove a geometry from the container. More... | |
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OGRGeometry (const OGRGeometry &other) | |
Copy constructor. More... | |
OGRGeometry & | operator= (const OGRGeometry &other) |
Assignment operator. More... | |
virtual int | getCoordinateDimension () const |
Get the dimension of the coordinates in this object. More... | |
int | CoordinateDimension () const |
Get the dimension of the coordinates in this object. More... | |
virtual OGRBoolean | IsValid () const |
Test if the geometry is valid. More... | |
virtual OGRBoolean | IsSimple () const |
Test if the geometry is simple. More... | |
OGRBoolean | Is3D () const |
OGRBoolean | IsMeasured () const |
virtual OGRBoolean | IsRing () const |
Test if the geometry is a ring. More... | |
OGRwkbGeometryType | getIsoGeometryType () const |
Get the geometry type that conforms with ISO SQL/MM Part3. More... | |
virtual void | dumpReadable (FILE *, const char *=NULL, char **papszOptions=NULL) const |
Dump geometry in well known text format to indicated output file. More... | |
virtual char * | exportToGML (const char *const *papszOptions=NULL) const |
Convert a geometry into GML format. More... | |
virtual char * | exportToKML () const |
Convert a geometry into KML format. More... | |
virtual char * | exportToJson () const |
Convert a geometry into GeoJSON format. More... | |
virtual GEOSGeom | exportToGEOS (GEOSContextHandle_t hGEOSCtxt) const CPL_WARN_UNUSED_RESULT |
virtual OGRGeometry * | getCurveGeometry (const char *const *papszOptions=NULL) const CPL_WARN_UNUSED_RESULT |
Return curve version of this geometry. More... | |
virtual OGRGeometry * | getLinearGeometry (double dfMaxAngleStepSizeDegrees=0, const char *const *papszOptions=NULL) const CPL_WARN_UNUSED_RESULT |
Return, possibly approximate, non-curve version of this geometry. More... | |
virtual void | closeRings () |
Force rings to be closed. More... | |
void | assignSpatialReference (OGRSpatialReference *poSR) |
Assign spatial reference to this object. More... | |
OGRSpatialReference * | getSpatialReference (void) const |
Returns spatial reference system for object. More... | |
OGRErr | transformTo (OGRSpatialReference *poSR) |
Transform geometry to new spatial reference system. More... | |
virtual void | segmentize (double dfMaxLength) |
Modify the geometry such it has no segment longer then the given distance. More... | |
virtual OGRBoolean | Intersects (const OGRGeometry *) const |
Do these features intersect? More... | |
virtual OGRBoolean | Disjoint (const OGRGeometry *) const |
Test for disjointness. More... | |
virtual OGRBoolean | Touches (const OGRGeometry *) const |
Test for touching. More... | |
virtual OGRBoolean | Crosses (const OGRGeometry *) const |
Test for crossing. More... | |
virtual OGRBoolean | Within (const OGRGeometry *) const |
Test for containment. More... | |
virtual OGRBoolean | Contains (const OGRGeometry *) const |
Test for containment. More... | |
virtual OGRBoolean | Overlaps (const OGRGeometry *) const |
Test for overlap. More... | |
virtual OGRGeometry * | Boundary () const CPL_WARN_UNUSED_RESULT |
Compute boundary. More... | |
virtual double | Distance (const OGRGeometry *) const |
Compute distance between two geometries. More... | |
virtual OGRGeometry * | ConvexHull () const CPL_WARN_UNUSED_RESULT |
Compute convex hull. More... | |
virtual OGRGeometry * | Buffer (double dfDist, int nQuadSegs=30) const CPL_WARN_UNUSED_RESULT |
Compute buffer of geometry. More... | |
virtual OGRGeometry * | Intersection (const OGRGeometry *) const CPL_WARN_UNUSED_RESULT |
Compute intersection. More... | |
virtual OGRGeometry * | Union (const OGRGeometry *) const CPL_WARN_UNUSED_RESULT |
Compute union. More... | |
virtual OGRGeometry * | UnionCascaded () const CPL_WARN_UNUSED_RESULT |
Compute union using cascading. More... | |
virtual OGRGeometry * | Difference (const OGRGeometry *) const CPL_WARN_UNUSED_RESULT |
Compute difference. More... | |
virtual OGRGeometry * | SymDifference (const OGRGeometry *) const CPL_WARN_UNUSED_RESULT |
Compute symmetric difference. More... | |
virtual OGRErr | Centroid (OGRPoint *poPoint) const |
Compute the geometry centroid. More... | |
virtual OGRGeometry * | Simplify (double dTolerance) const CPL_WARN_UNUSED_RESULT |
Simplify the geometry. More... | |
OGRGeometry * | SimplifyPreserveTopology (double dTolerance) const CPL_WARN_UNUSED_RESULT |
Simplify the geometry while preserving topology. More... | |
virtual OGRGeometry * | DelaunayTriangulation (double dfTolerance, int bOnlyEdges) const CPL_WARN_UNUSED_RESULT |
Return a Delaunay triangulation of the vertices of the geometry. More... | |
virtual OGRGeometry * | Polygonize () const CPL_WARN_UNUSED_RESULT |
Polygonizes a set of sparse edges. More... | |
virtual double | Distance3D (const OGRGeometry *poOtherGeom) const |
Returns the 3D distance between two geometries. More... | |
Static Public Member Functions | |
static OGRMultiPolygon * | CastToMultiPolygon (OGRPolyhedralSurface *poPS) |
Casts the OGRPolyhedralSurface to an OGRMultiPolygon. More... | |
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static GEOSContextHandle_t | createGEOSContext () |
static void | freeGEOSContext (GEOSContextHandle_t hGEOSCtxt) |
PolyhedralSurface class.
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Add a new geometry to a collection.
Only a POLYGON can be added to a POLYHEDRALSURFACE.
< Unsupported geometry type
< Failure
< Success
Reimplemented in OGRTriangulatedSurface.
References addGeometryDirectly(), OGRGeometry::clone(), OGRGeometry::getGeometryType(), OGRERR_FAILURE, OGRERR_NONE, and OGRERR_UNSUPPORTED_GEOMETRY_TYPE.
Referenced by OGRTriangulatedSurface::addGeometry(), and OGRGeometryFactory::forceTo().
OGRErr OGRPolyhedralSurface::addGeometryDirectly | ( | OGRGeometry * | poNewGeom | ) |
Add a geometry directly to the container.
This method is the same as the C function OGR_G_AddGeometryDirectly().
There is no SFCOM analog to this method.
poNewGeom | geometry to add to the container. |
< Unsupported geometry type
< Failure
< Success
References OGRGeometry::getGeometryType(), OGRGeometry::Is3D(), OGRGeometry::IsMeasured(), OGRERR_FAILURE, OGRERR_NONE, OGRERR_UNSUPPORTED_GEOMETRY_TYPE, OGRGeometry::set3D(), set3D(), OGRGeometry::setMeasured(), setMeasured(), and VSI_REALLOC_VERBOSE.
Referenced by addGeometry(), OGRTriangulatedSurface::addGeometry(), OGRTriangulatedSurface::CastToPolyhedralSurface(), and OGRGeometryFactory::forceTo().
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Casts the OGRPolyhedralSurface to an OGRMultiPolygon.
The passed in geometry is consumed and a new one returned (or NULL in case of failure)
poPS | the input geometry - ownership is passed to the method. |
Referenced by OGRGeometryFactory::forceToMultiPolygon().
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Make a copy of this object.
This method relates to the SFCOM IGeometry::clone() method.
This method is the same as the C function OGR_G_Clone().
< Success
Implements OGRGeometry.
References OGRGeometry::assignSpatialReference(), OGRGeometryFactory::createGeometry(), getGeometryType(), OGRGeometry::getSpatialReference(), and OGRERR_NONE.
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Clear geometry information. This restores the geometry to it's initial state after construction, and before assignment of actual geometry.
This method relates to the SFCOM IGeometry::Empty() method.
This method is the same as the C function OGR_G_Empty().
Implements OGRGeometry.
References CPLFree.
Referenced by OGRTriangulatedSurface::operator=().
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Returns TRUE if two geometries are equivalent.
This operation implements the SQL/MM ST_OrderingEquals() operation.
The comparison is done in a structural way, that is to say that the geometry types must be identical, as well as the number and ordering of sub-geometries and vertices. Or equivalently, two geometries are considered equal by this method if their WKT/WKB representation is equal. Note: this must be distinguished for equality in a spatial way (which is the purpose of the ST_Equals() operation).
This method is the same as the C function OGR_G_Equals().
Implements OGRGeometry.
References getGeometryRef(), OGRGeometry::getGeometryType(), getGeometryType(), getNumGeometries(), OGRGeometry::IsEmpty(), and IsEmpty().
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Convert a geometry into well known binary format.
This method relates to the SFCOM IWks::ExportToWKB() method.
This method is the same as the C function OGR_G_ExportToWkb() or OGR_G_ExportToIsoWkb(), depending on the value of eWkbVariant.
eByteOrder | One of wkbXDR or wkbNDR indicating MSB or LSB byte order respectively. |
pabyData | a buffer into which the binary representation is written. This buffer must be at least OGRGeometry::WkbSize() byte in size. |
eWkbVariant | What standard to use when exporting geometries with three dimensions (or more). The default wkbVariantOldOgc is the historical OGR variant. wkbVariantIso is the variant defined in ISO SQL/MM and adopted by OGC for SFSQL 1.2. |
< Success
Implements OGRGeometry.
References CPL_SWAP32, OGRGeometry::getIsoGeometryType(), OGRERR_NONE, and wkbVariantIso.
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Convert a geometry into well known text format.
This method relates to the SFCOM IWks::ExportToWKT() method.
This method is the same as the C function OGR_G_ExportToWkt().
ppszDstText | a text buffer is allocated by the program, and assigned to the passed pointer. After use, *ppszDstText should be freed with CPLFree(). |
eWkbVariant | the specification that must be conformed too :
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Implements OGRGeometry.
References wkbVariantIso.
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Convert geometry to strictly 2D. In a sense this converts all Z coordinates to 0.0.
This method is the same as the C function OGR_G_FlattenTo2D().
Implements OGRGeometry.
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Returns the area enclosed.
This method is built on the SFCGAL library, check it for the definition of the geometry operation. If OGR is built without the SFCGAL library, this method will always return -1.0
Implements OGRSurface.
References CPLError().
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Get the dimension of this object.
This method corresponds to the SFCOM IGeometry::GetDimension() method. It indicates the dimension of the object, but does not indicate the dimension of the underlying space (as indicated by OGRGeometry::getCoordinateDimension()).
This method is the same as the C function OGR_G_GetDimension().
Implements OGRGeometry.
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Computes and returns the bounding envelope for this geometry in the passed psEnvelope structure.
This method is the same as the C function OGR_G_GetEnvelope().
psEnvelope | the structure in which to place the results. |
Implements OGRGeometry.
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Computes and returns the bounding envelope (3D) for this geometry in the passed psEnvelope structure.
This method is the same as the C function OGR_G_GetEnvelope3D().
psEnvelope | the structure in which to place the results. |
Implements OGRGeometry.
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Fetch WKT name for geometry type.
There is no SFCOM analog to this method.
This method is the same as the C function OGR_G_GetGeometryName().
Implements OGRGeometry.
Reimplemented in OGRTriangulatedSurface.
OGRGeometry * OGRPolyhedralSurface::getGeometryRef | ( | int | i | ) |
Fetch geometry from container.
This method returns a pointer to an geometry within the container. The returned geometry remains owned by the container, and should not be modified. The pointer is only valid until the next change to the geometry container. Use IGeometry::clone() to make a copy.
i | the index of the geometry to fetch, between 0 and getNumGeometries() - 1. |
Referenced by OGRGeometry::dumpReadable(), Equals(), OGRGeometryFactory::forceTo(), and OGRTriangulatedSurface::operator=().
const OGRGeometry * OGRPolyhedralSurface::getGeometryRef | ( | int | i | ) | const |
Fetch geometry from container.
This method returns a pointer to an geometry within the container. The returned geometry remains owned by the container, and should not be modified. The pointer is only valid until the next change to the geometry container. Use IGeometry::clone() to make a copy.
i | the index of the geometry to fetch, between 0 and getNumGeometries() - 1. |
int OGRPolyhedralSurface::getNumGeometries | ( | ) | const |
Fetch number of geometries in PolyhedralSurface.
Referenced by OGRGeometry::dumpReadable(), Equals(), and OGRGeometryFactory::forceTo().
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Returns if this geometry is or has curve geometry.
Returns if a geometry is, contains or may contain a CIRCULARSTRING, COMPOUNDCURVE, CURVEPOLYGON, MULTICURVE or MULTISURFACE.
If bLookForNonLinear is set to TRUE, it will be actually looked if the geometry or its subgeometries are or contain a non-linear geometry in them. In which case, if the method returns TRUE, it means that getLinearGeometry() would return an approximate version of the geometry. Otherwise, getLinearGeometry() would do a conversion, but with just converting container type, like COMPOUNDCURVE -> LINESTRING, MULTICURVE -> MULTILINESTRING or MULTISURFACE -> MULTIPOLYGON, resulting in a "loss-less" conversion.
This method is the same as the C function OGR_G_HasCurveGeometry().
bLookForNonLinear | set it to TRUE to check if the geometry is or contains a CIRCULARSTRING. |
Reimplemented from OGRGeometry.
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Assign geometry from well known binary data.
The object must have already been instantiated as the correct derived type of geometry object to match the binaries type. This method is used by the OGRGeometryFactory class, but not normally called by application code.
This method relates to the SFCOM IWks::ImportFromWKB() method.
This method is the same as the C function OGR_G_ImportFromWkb().
pabyData | the binary input data. |
nSize | the size of pabyData in bytes, or zero if not known. |
eWkbVariant | if wkbVariantPostGIS1, special interpretation is done for curve geometries code |
< Success
< Not enough memory
< Not enough data to deserialize
< Success
< Corrupt data
< Success
< Success
Implements OGRGeometry.
References CPLDebug(), OGRGeometryFactory::createFromWkb(), getGeometryType(), OGRERR_CORRUPT_DATA, OGRERR_NONE, OGRERR_NOT_ENOUGH_DATA, OGRERR_NOT_ENOUGH_MEMORY, VSI_CALLOC_VERBOSE, OGRGeometry::WkbSize(), and wkbXDR.
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Assign geometry from well known text data.
The object must have already been instantiated as the correct derived type of geometry object to match the text type. This method is used by the OGRGeometryFactory class, but not normally called by application code.
This method relates to the SFCOM IWks::ImportFromWKT() method.
This method is the same as the C function OGR_G_ImportFromWkt().
ppszInput | pointer to a pointer to the source text. The pointer is updated to pointer after the consumed text. |
< Success
< Success
< Success
< Corrupt data
< Success
< Success
< Success
< Success
< Corrupt data
< Success
Implements OGRGeometry.
References CPLError(), OGRGeometryFactory::createFromWkt(), OGRGeometryFactory::createGeometry(), EQUAL, and OGRERR_NONE.
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Checks if the PolyhedralSurface is empty.
Implements OGRGeometry.
Referenced by Equals().
This method relates to the SFCOM ISurface::get_PointOnSurface() method.
NOTE: Only implemented when GEOS included in build.
poPoint | point to be set with an internal point. |
Implements OGRSurface.
OGRErr OGRPolyhedralSurface::removeGeometry | ( | int | iGeom, |
int | bDelete = TRUE |
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Remove a geometry from the container.
Removing a geometry will cause the geometry count to drop by one, and all "higher" geometries will shuffle down one in index.
iGeom | the index of the geometry to delete. A value of -1 is a special flag meaning that all geometries should be removed. |
bDelete | if TRUE the geometry will be deallocated, otherwise it will not. The default is TRUE as the container is considered to own the geometries in it. |
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Set the coordinate dimension.
This method sets the explicit coordinate dimension. Setting the coordinate dimension of a geometry to 2 should zero out any existing Z values. This will also remove the M dimension if present before this call.
nNewDimension | New coordinate dimension value, either 2 or 3. |
Reimplemented from OGRGeometry.
References OGRGeometry::setCoordinateDimension().
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Apply arbitrary coordinate transformation to geometry.
This method will transform the coordinates of a geometry from their current spatial reference system to a new target spatial reference system. Normally this means reprojecting the vectors, but it could include datum shifts, and changes of units.
Note that this method does not require that the geometry already have a spatial reference system. It will be assumed that they can be treated as having the source spatial reference system of the OGRCoordinateTransformation object, and the actual SRS of the geometry will be ignored. On successful completion the output OGRSpatialReference of the OGRCoordinateTransformation will be assigned to the geometry.
This method is the same as the C function OGR_G_Transform().
poCT | the transformation to apply. |
Implements OGRGeometry.
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Returns size of related binary representation.
This method returns the exact number of bytes required to hold the well known binary representation of this geometry object. Its computation may be slightly expensive for complex geometries.
This method relates to the SFCOM IWks::WkbSize() method.
This method is the same as the C function OGR_G_WkbSize().
Implements OGRGeometry.