GEOS
3.8.1
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Models a collection of Polygons. More...
#include <MultiPolygon.h>
Public Member Functions | |
Dimension::DimensionType | getDimension () const override |
Returns surface dimension (2) | |
bool | isDimensionStrict (Dimension::DimensionType d) const override |
Checks whether this Geometry consists only of components having dimension d. | |
int | getBoundaryDimension () const override |
Returns 1 (MultiPolygon boundary is MultiLineString) | |
std::unique_ptr< Geometry > | getBoundary () const override |
Computes the boundary of this geometry. More... | |
std::string | getGeometryType () const override |
Return a string representation of this Geometry type. | |
GeometryTypeId | getGeometryTypeId () const override |
Return an integer representation of this Geometry type. | |
bool | equalsExact (const Geometry *other, double tolerance=0) const override |
Returns true iff the two Geometrys are of the same type and their vertices corresponding by index are equal up to a specified tolerance. | |
std::unique_ptr< Geometry > | clone () const override |
std::unique_ptr< Geometry > | reverse () const override |
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const_iterator | begin () const |
const_iterator | end () const |
void | setSRID (int) override |
Sets the ID of the Spatial Reference System used by the Geometry. | |
std::unique_ptr < CoordinateSequence > | getCoordinates () const override |
Collects all coordinates of all subgeometries into a CoordinateSequence. More... | |
bool | isEmpty () const override |
Returns whether or not the set of points in this Geometry is empty. | |
int | getCoordinateDimension () const override |
Returns coordinate dimension. | |
std::size_t | getNumPoints () const override |
Returns the count of this Geometrys vertices. | |
void | apply_ro (CoordinateFilter *filter) const override |
void | apply_rw (const CoordinateFilter *filter) override |
void | apply_ro (GeometryFilter *filter) const override |
void | apply_rw (GeometryFilter *filter) override |
void | apply_ro (GeometryComponentFilter *filter) const override |
void | apply_rw (GeometryComponentFilter *filter) override |
void | apply_rw (CoordinateSequenceFilter &filter) override |
void | apply_ro (CoordinateSequenceFilter &filter) const override |
void | normalize () override |
Converts this Geometry to normal form (or canonical form). | |
const Coordinate * | getCoordinate () const override |
Returns a vertex of this Geometry, or NULL if this is the empty geometry. | |
double | getArea () const override |
Returns the total area of this collection. | |
double | getLength () const override |
Returns the total length of this collection. | |
std::size_t | getNumGeometries () const override |
Returns the number of geometries in this collection. | |
const Geometry * | getGeometryN (std::size_t n) const override |
Returns a pointer to the nth Geometry in this collection. | |
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virtual | ~Geometry () |
Destroy Geometry and all components. | |
const GeometryFactory * | getFactory () const |
Gets the factory which contains the context in which this geometry was created. More... | |
void | setUserData (void *newUserData) |
A simple scheme for applications to add their own custom data to a Geometry. An example use might be to add an object representing a Coordinate Reference System. More... | |
void * | getUserData () const |
Gets the user data object for this geometry, if any. More... | |
virtual int | getSRID () const |
Returns the ID of the Spatial Reference System used by the Geometry. More... | |
const PrecisionModel * | getPrecisionModel () const |
Get the PrecisionModel used to create this Geometry. | |
virtual bool | isSimple () const |
Returns false if the Geometry not simple. | |
virtual bool | isValid () const |
Tests the validity of this Geometry . More... | |
virtual bool | isRectangle () const |
Polygon overrides to check for actual rectangle. | |
bool | isPuntal () const |
bool | isLineal () const |
bool | isPolygonal () const |
virtual std::unique_ptr< Geometry > | getEnvelope () const |
Returns this Geometrys bounding box. | |
virtual const Envelope * | getEnvelopeInternal () const |
Returns the minimum and maximum x and y values in this Geometry, or a null Envelope if this Geometry is empty. | |
virtual bool | disjoint (const Geometry *other) const |
virtual bool | touches (const Geometry *other) const |
Returns true if the DE-9IM intersection matrix for the two Geometrys is FT*******, F**T***** or F***T****. | |
virtual bool | intersects (const Geometry *g) const |
Returns true if disjoint returns false. | |
virtual bool | crosses (const Geometry *g) const |
virtual bool | within (const Geometry *g) const |
Returns true if the DE-9IM intersection matrix for the two Geometrys is T*F**F***. | |
virtual bool | contains (const Geometry *g) const |
Returns true if other.within(this) returns true. | |
virtual bool | overlaps (const Geometry *g) const |
Returns true if the DE-9IM intersection matrix for the two Geometrys is T*T***T** (for two points or two surfaces) 1*T***T** (for two curves). | |
bool | relate (const Geometry *g, const std::string &intersectionPattern) const |
Returns true if the elements in the DE-9IM intersection matrix for the two Geometrys match the elements in intersectionPattern. More... | |
bool | relate (const Geometry &g, const std::string &intersectionPattern) const |
std::unique_ptr < IntersectionMatrix > | relate (const Geometry *g) const |
Returns the DE-9IM intersection matrix for the two Geometrys. | |
std::unique_ptr < IntersectionMatrix > | relate (const Geometry &g) const |
virtual bool | equals (const Geometry *g) const |
Returns true if the DE-9IM intersection matrix for the two Geometrys is T*F**FFF*. | |
bool | covers (const Geometry *g) const |
Returns true if this geometry covers the specified geometry. More... | |
bool | coveredBy (const Geometry *g) const |
Tests whether this geometry is covered by the specified geometry. More... | |
virtual std::string | toString () const |
Returns the Well-known Text representation of this Geometry. | |
virtual std::string | toText () const |
std::unique_ptr< Geometry > | buffer (double distance) const |
std::unique_ptr< Geometry > | buffer (double distance, int quadrantSegments) const |
Returns a buffer region around this Geometry having the given width and with a specified number of segments used to approximate curves. More... | |
std::unique_ptr< Geometry > | buffer (double distance, int quadrantSegments, int endCapStyle) const |
Computes a buffer area around this geometry having the given width and with a specified accuracy of approximation for circular arcs, and using a specified end cap style. More... | |
virtual std::unique_ptr< Geometry > | convexHull () const |
Returns the smallest convex Polygon that contains all the points in the Geometry. | |
std::unique_ptr< Geometry > | intersection (const Geometry *other) const |
Returns a Geometry representing the points shared by this Geometry and other. More... | |
std::unique_ptr< Geometry > | Union (const Geometry *other) const |
Returns a Geometry representing all the points in this Geometry and other. More... | |
Ptr | Union () const |
Computes the union of all the elements of this geometry. Heterogeneous GeometryCollections are fully supported. More... | |
std::unique_ptr< Geometry > | difference (const Geometry *other) const |
Returns a Geometry representing the points making up this Geometry that do not make up other. More... | |
std::unique_ptr< Geometry > | symDifference (const Geometry *other) const |
Returns a set combining the points in this Geometry not in other, and the points in other not in this Geometry. More... | |
template<class T > | |
void | applyComponentFilter (T &f) const |
Apply a filter to each component of this geometry. The filter is expected to provide a .filter(const Geometry*) method. More... | |
virtual int | compareTo (const Geometry *geom) const |
virtual double | distance (const Geometry *g) const |
Returns the minimum distance between this Geometry and the Geometry g. | |
virtual bool | isWithinDistance (const Geometry *geom, double cDistance) const |
Tests whether the distance from this Geometry to another is less than or equal to a specified value. More... | |
virtual std::unique_ptr< Point > | getCentroid () const |
Computes the centroid of this Geometry . More... | |
virtual bool | getCentroid (Coordinate &ret) const |
Computes the centroid of this Geometry as a Coordinate. More... | |
std::unique_ptr< Point > | getInteriorPoint () const |
Computes an interior point of this Geometry . More... | |
virtual void | geometryChanged () |
Notifies this Geometry that its Coordinates have been changed by an external party (using a CoordinateFilter, for example). | |
void | geometryChangedAction () |
Notifies this Geometry that its Coordinates have been changed by an external party. | |
Protected Member Functions | |
MultiPolygon (std::vector< Geometry * > *newPolys, const GeometryFactory *newFactory) | |
Construct a MultiPolygon. More... | |
MultiPolygon (std::vector< std::unique_ptr< Polygon >> &&newPolys, const GeometryFactory &newFactory) | |
MultiPolygon (std::vector< std::unique_ptr< Geometry >> &&newPolys, const GeometryFactory &newFactory) | |
MultiPolygon (const MultiPolygon &mp) | |
int | getSortIndex () const override |
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GeometryCollection (const GeometryCollection &gc) | |
GeometryCollection (std::vector< Geometry * > *newGeoms, const GeometryFactory *newFactory) | |
Construct a GeometryCollection with the given GeometryFactory. Will keep a reference to the factory, so don't delete it until al Geometry objects referring to it are deleted. Will take ownership of the Geometry vector. More... | |
GeometryCollection (std::vector< std::unique_ptr< Geometry >> &&newGeoms, const GeometryFactory &newFactory) | |
template<typename T > | |
GeometryCollection (std::vector< std::unique_ptr< T >> &&newGeoms, const GeometryFactory &newFactory) | |
Convenience constructor to build a GeometryCollection from vector of Geometry subclass pointers. | |
Envelope::Ptr | computeEnvelopeInternal () const override |
int | compareToSameClass (const Geometry *gc) const override |
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virtual bool | isEquivalentClass (const Geometry *other) const |
Returns whether the two Geometrys are equal, from the point of view of the equalsExact method. | |
int | compare (std::vector< Coordinate > a, std::vector< Coordinate > b) const |
int | compare (std::vector< Geometry * > a, std::vector< Geometry * > b) const |
int | compare (const std::vector< std::unique_ptr< Geometry >> &a, const std::vector< std::unique_ptr< Geometry >> &b) const |
bool | equal (const Coordinate &a, const Coordinate &b, double tolerance) const |
Geometry (const Geometry &geom) | |
Geometry (const GeometryFactory *factory) | |
Construct a geometry with the given GeometryFactory. More... | |
Friends | |
class | GeometryFactory |
Additional Inherited Members | |
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typedef std::vector < std::unique_ptr< Geometry > >::const_iterator | const_iterator |
typedef std::vector < std::unique_ptr< Geometry > >::iterator | iterator |
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using | ConstVect = std::vector< const Geometry * > |
A vector of const Geometry pointers. | |
using | NonConstVect = std::vector< Geometry * > |
A vector of non-const Geometry pointers. | |
using | Ptr = std::unique_ptr< Geometry > |
An unique_ptr of Geometry. | |
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template<typename T > | |
static bool | hasNonEmptyElements (const std::vector< T > *geometries) |
Returns true if the array contains any non-empty Geometrys. | |
static bool | hasNullElements (const CoordinateSequence *list) |
Returns true if the CoordinateSequence contains any null elements. | |
template<typename T > | |
static bool | hasNullElements (const std::vector< T > *geometries) |
Returns true if the vector contains any null elements. | |
static void | checkNotGeometryCollection (const Geometry *g) |
template<typename T > | |
static std::vector < std::unique_ptr< Geometry > > | toGeometryArray (std::vector< std::unique_ptr< T >> &&v) |
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std::vector< std::unique_ptr < Geometry > > | geometries |
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std::unique_ptr< Envelope > | envelope |
The bounding box of this Geometry. | |
int | SRID |
Models a collection of Polygons.
As per the OGC SFS specification, the Polygons in a MultiPolygon may not overlap, and may only touch at single points. This allows the topological point-set semantics to be well-defined.
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protected |
Construct a MultiPolygon.
newPolys | the Polygon s for this MultiPolygon , or null or an empty array to create the empty geometry. Elements may be empty Polygon s, but not null s. The polygons must conform to the assertions specified in the OpenGIS Simple Features Specification for SQL . |
Constructed object will take ownership of the vector and its elements.
newFactory | The GeometryFactory used to create this geometry Caller must keep the factory alive for the life-time of the constructed MultiPolygon. |
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overridevirtual |
Creates and returns a full copy of this GeometryCollection object. (including all coordinates contained by it).
Reimplemented from geos::geom::GeometryCollection.
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overridevirtual |
Computes the boundary of this geometry.
Reimplemented from geos::geom::GeometryCollection.
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overridevirtual |
Creates a GeometryCollection with every component reversed. The order of the components in the collection are not reversed.
Reimplemented from geos::geom::GeometryCollection.