OGR
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#include <ogr_geometry.h>
Public Member Functions | |
OGRTriangle () | |
Constructor. | |
OGRTriangle (const OGRPoint &p, const OGRPoint &q, const OGRPoint &r) | |
Construct a triangle from points. More... | |
OGRTriangle (const OGRTriangle &other) | |
Copy constructor. | |
OGRTriangle (const OGRPolygon &other, OGRErr &eErr) | |
Constructs an OGRTriangle from a valid OGRPolygon. In case of error, NULL is returned. More... | |
OGRTriangle & | operator= (const OGRTriangle &other) |
Assignment operator. More... | |
~OGRTriangle () override | |
Destructor. | |
virtual const char * | getGeometryName () const override |
Fetch WKT name for geometry type. More... | |
virtual OGRwkbGeometryType | getGeometryType () const override |
Fetch geometry type. More... | |
virtual OGRErr | importFromWkb (const unsigned char *, int, OGRwkbVariant, int &nBytesConsumedOut) override |
Assign geometry from well known binary data. More... | |
virtual OGRErr | addRingDirectly (OGRCurve *poNewRing) override |
Add a ring to a polygon. More... | |
OGRPolygon * | toUpperClass () |
const OGRPolygon * | toUpperClass () const |
virtual void | accept (IOGRGeometryVisitor *visitor) override |
virtual void | accept (IOGRConstGeometryVisitor *visitor) const override |
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OGRPolygon () | |
Create an empty polygon. | |
OGRPolygon (const OGRPolygon &other) | |
Copy constructor. More... | |
OGRPolygon & | operator= (const OGRPolygon &other) |
Assignment operator. More... | |
ChildType ** | begin () |
ChildType ** | end () |
const ChildType *const * | begin () const |
const ChildType *const * | end () const |
virtual OGRBoolean | hasCurveGeometry (int bLookForNonLinear=FALSE) const override |
Returns if this geometry is or has curve geometry. More... | |
virtual OGRGeometry * | getCurveGeometry (const char *const *papszOptions=nullptr) const override |
Return curve version of this geometry. More... | |
virtual OGRGeometry * | getLinearGeometry (double dfMaxAngleStepSizeDegrees=0, const char *const *papszOptions=nullptr) const override |
Return, possibly approximate, non-curve version of this geometry. More... | |
virtual int | WkbSize () const override |
Returns size of related binary representation. More... | |
virtual OGRErr | exportToWkb (OGRwkbByteOrder, unsigned char *, OGRwkbVariant=wkbVariantOldOgc) const override |
Convert a geometry into well known binary format. More... | |
OGRErr | importFromWkt (const char **) override |
virtual OGRErr | exportToWkt (char **ppszDstText, OGRwkbVariant=wkbVariantOldOgc) const override |
Convert a geometry into well known text format. More... | |
virtual OGRPolygon * | CurvePolyToPoly (double dfMaxAngleStepSizeDegrees=0, const char *const *papszOptions=nullptr) const override |
Return a polygon from a curve polygon. More... | |
OGRLinearRing * | getExteriorRing () |
Fetch reference to external polygon ring. More... | |
const OGRLinearRing * | getExteriorRing () const |
Fetch reference to external polygon ring. More... | |
virtual OGRLinearRing * | getInteriorRing (int) |
Fetch reference to indicated internal ring. More... | |
virtual const OGRLinearRing * | getInteriorRing (int) const |
Fetch reference to indicated internal ring. More... | |
OGRLinearRing * | stealExteriorRing () |
"Steal" reference to external polygon ring. More... | |
virtual OGRLinearRing * | stealInteriorRing (int) |
"Steal" reference to indicated interior ring. More... | |
OGRBoolean | IsPointOnSurface (const OGRPoint *) const |
OGRCurvePolygon * | toUpperClass () |
const OGRCurvePolygon * | toUpperClass () const |
virtual void | closeRings () override |
Force rings to be closed. More... | |
virtual OGRErr | importFromWkt (const char **ppszInput)=0 |
Assign geometry from well known text data. More... | |
OGRErr | importFromWkt (char **ppszInput) CPL_WARN_DEPRECATED("Use importFromWkt( const char**) instead") |
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OGRCurvePolygon () | |
Create an empty curve polygon. | |
OGRCurvePolygon (const OGRCurvePolygon &) | |
Copy constructor. More... | |
OGRCurvePolygon & | operator= (const OGRCurvePolygon &other) |
Assignment operator. More... | |
ChildType ** | begin () |
ChildType ** | end () |
const ChildType *const * | begin () const |
const ChildType *const * | end () const |
virtual OGRGeometry * | clone () const override |
Make a copy of this object. More... | |
virtual void | empty () override |
Clear geometry information. This restores the geometry to its initial state after construction, and before assignment of actual geometry. More... | |
virtual OGRErr | transform (OGRCoordinateTransformation *poCT) override |
Apply arbitrary coordinate transformation to geometry. More... | |
virtual void | flattenTo2D () override |
Convert geometry to strictly 2D. In a sense this converts all Z coordinates to 0.0. More... | |
virtual OGRBoolean | IsEmpty () const override |
Returns TRUE (non-zero) if the object has no points. More... | |
virtual void | segmentize (double dfMaxLength) override |
Modify the geometry such it has no segment longer then the given distance. More... | |
virtual double | get_Area () const override |
Get the area of the surface object. More... | |
virtual int | getDimension () const override |
Get the dimension of this object. More... | |
virtual void | getEnvelope (OGREnvelope *psEnvelope) const override |
Computes and returns the bounding envelope for this geometry in the passed psEnvelope structure. More... | |
virtual void | getEnvelope (OGREnvelope3D *psEnvelope) const override |
Computes and returns the bounding envelope (3D) for this geometry in the passed psEnvelope structure. More... | |
virtual OGRBoolean | Equals (const OGRGeometry *) const override |
Returns TRUE if two geometries are equivalent. More... | |
virtual OGRBoolean | Intersects (const OGRGeometry *) const override |
Do these features intersect? More... | |
virtual OGRBoolean | Contains (const OGRGeometry *) const override |
Test for containment. More... | |
virtual void | setCoordinateDimension (int nDimension) override |
Set the coordinate dimension. More... | |
virtual void | set3D (OGRBoolean bIs3D) override |
Add or remove the Z coordinate dimension. More... | |
virtual void | setMeasured (OGRBoolean bIsMeasured) override |
Add or remove the M coordinate dimension. More... | |
virtual void | assignSpatialReference (OGRSpatialReference *poSR) override |
Assign spatial reference to this object. More... | |
virtual OGRErr | addRing (OGRCurve *) |
Add a ring to a polygon. More... | |
OGRCurve * | getExteriorRingCurve () |
Fetch reference to external polygon ring. More... | |
const OGRCurve * | getExteriorRingCurve () const |
Fetch reference to external polygon ring. More... | |
int | getNumInteriorRings () const |
Fetch the number of internal rings. More... | |
OGRCurve * | getInteriorRingCurve (int) |
Fetch reference to indicated internal ring. More... | |
const OGRCurve * | getInteriorRingCurve (int) const |
Fetch reference to indicated internal ring. More... | |
OGRCurve * | stealExteriorRingCurve () |
"Steal" reference to external ring. More... | |
OGRErr | removeRing (int iIndex, bool bDelete=true) |
Remove a geometry from the container. More... | |
virtual void | swapXY () override |
Swap x and y coordinates. More... | |
virtual OGRErr | importFromWkt (const char **ppszInput)=0 |
Assign geometry from well known text data. More... | |
OGRErr | importFromWkt (char **ppszInput) CPL_WARN_DEPRECATED("Use importFromWkt( const char**) instead") |
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virtual OGRErr | PointOnSurface (OGRPoint *poPoint) const |
This method relates to the SFCOM ISurface::get_PointOnSurface() method. More... | |
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OGRGeometry (const OGRGeometry &other) | |
Copy constructor. More... | |
OGRGeometry & | operator= (const OGRGeometry &other) |
Assignment operator. More... | |
bool | operator== (const OGRGeometry &other) const |
bool | operator!= (const OGRGeometry &other) const |
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... | |
OGRErr | importFromWkb (const GByte *, int=-1, OGRwkbVariant=wkbVariantOldOgc) |
Assign geometry from well known binary data. More... | |
OGRErr | importFromWkt (char **ppszInput) CPL_WARN_DEPRECATED("Use importFromWkt( const char**) instead") |
OGRwkbGeometryType | getIsoGeometryType () const |
Get the geometry type that conforms with ISO SQL/MM Part3. More... | |
virtual void | dumpReadable (FILE *, const char *=nullptr, char **papszOptions=nullptr) const |
Dump geometry in well known text format to indicated output file. More... | |
virtual char * | exportToGML (const char *const *papszOptions=nullptr) 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 |
OGRSpatialReference * | getSpatialReference (void) const |
Returns spatial reference system for object. More... | |
OGRErr | transformTo (OGRSpatialReference *poSR) |
Transform geometry to new spatial reference system. 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 | 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... | |
OGRPoint * | toPoint () |
const OGRPoint * | toPoint () const |
OGRCurve * | toCurve () |
const OGRCurve * | toCurve () const |
OGRSimpleCurve * | toSimpleCurve () |
const OGRSimpleCurve * | toSimpleCurve () const |
OGRLineString * | toLineString () |
const OGRLineString * | toLineString () const |
OGRLinearRing * | toLinearRing () |
const OGRLinearRing * | toLinearRing () const |
OGRCircularString * | toCircularString () |
const OGRCircularString * | toCircularString () const |
OGRCompoundCurve * | toCompoundCurve () |
const OGRCompoundCurve * | toCompoundCurve () const |
OGRSurface * | toSurface () |
const OGRSurface * | toSurface () const |
OGRPolygon * | toPolygon () |
const OGRPolygon * | toPolygon () const |
OGRTriangle * | toTriangle () |
const OGRTriangle * | toTriangle () const |
OGRCurvePolygon * | toCurvePolygon () |
const OGRCurvePolygon * | toCurvePolygon () const |
OGRGeometryCollection * | toGeometryCollection () |
const OGRGeometryCollection * | toGeometryCollection () const |
OGRMultiPoint * | toMultiPoint () |
const OGRMultiPoint * | toMultiPoint () const |
OGRMultiLineString * | toMultiLineString () |
const OGRMultiLineString * | toMultiLineString () const |
OGRMultiPolygon * | toMultiPolygon () |
const OGRMultiPolygon * | toMultiPolygon () const |
OGRMultiCurve * | toMultiCurve () |
const OGRMultiCurve * | toMultiCurve () const |
OGRMultiSurface * | toMultiSurface () |
const OGRMultiSurface * | toMultiSurface () const |
OGRPolyhedralSurface * | toPolyhedralSurface () |
const OGRPolyhedralSurface * | toPolyhedralSurface () const |
OGRTriangulatedSurface * | toTriangulatedSurface () |
const OGRTriangulatedSurface * | toTriangulatedSurface () const |
Additional Inherited Members | |
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typedef OGRLinearRing | ChildType |
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typedef OGRCurve | ChildType |
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static GEOSContextHandle_t | createGEOSContext () |
static void | freeGEOSContext (GEOSContextHandle_t hGEOSCtxt) |
static OGRGeometryH | ToHandle (OGRGeometry *poGeom) |
static OGRGeometry * | FromHandle (OGRGeometryH hGeom) |
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static OGRPolygon * | CastToPolygon (OGRCurvePolygon *poCP) |
Convert to polygon. More... | |
Triangle class.
Construct a triangle from points.
p | Point 1 |
q | Point 2 |
r | Point 3 |
References OGRSimpleCurve::addPoint().
OGRTriangle::OGRTriangle | ( | const OGRPolygon & | other, |
OGRErr & | eErr | ||
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Constructs an OGRTriangle from a valid OGRPolygon. In case of error, NULL is returned.
other | the Polygon we wish to construct a triangle from |
eErr | encapsulates an error code; contains OGRERR_NONE if the triangle is constructed successfully |
< Success
References OGRCurvePolygon::addRing(), CPLError(), OGRCurve::get_IsClosed(), OGRCurvePolygon::getExteriorRingCurve(), OGRCurvePolygon::getNumInteriorRings(), OGRCurve::getNumPoints(), and OGRERR_NONE.
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Add a ring to a polygon.
If the polygon has no external ring (it is empty) this will be used as the external ring, otherwise it is used as an internal ring. Ownership of the passed ring is assumed by the OGRCurvePolygon, but otherwise this method operates the same as OGRCurvePolygon::AddRing().
This method has no SFCOM analog.
poNewRing | ring to be added to the polygon. |
< Failure
Reimplemented from OGRCurvePolygon.
References OGRERR_FAILURE.
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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().
Reimplemented from OGRPolygon.
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Fetch geometry type.
Note that the geometry type may include the 2.5D flag. To get a 2D flattened version of the geometry type apply the wkbFlatten() macro to the return result.
This method is the same as the C function OGR_G_GetGeometryType().
Reimplemented from OGRPolygon.
References wkbTriangle, wkbTriangleM, wkbTriangleZ, and wkbTriangleZM.
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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 -1 if not known. |
eWkbVariant | if wkbVariantPostGIS1, special interpretation is done for curve geometries code |
nBytesConsumedOut | output parameter. Number of bytes consumed. |
< Success
< Corrupt data
< Success
< Success
< Success
< Success
< Success
< Success
Reimplemented from OGRPolygon.
References CPLDebug(), OGRCurvePolygon::empty(), OGRPolygon::importFromWkb(), OGRERR_CORRUPT_DATA, and OGRERR_NONE.
OGRTriangle & OGRTriangle::operator= | ( | const OGRTriangle & | other | ) |
Assignment operator.
other | A triangle passed as a parameter |
References OGRPolygon::operator=().
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Return pointer of this in upper class
Referenced by OGRDefaultGeometryVisitor::visit(), and OGRDefaultConstGeometryVisitor::visit().
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Return pointer of this in upper class