GEOS
3.4.2
|
A factory to create concrete instances of CoordinateSequences. More...
#include <CoordinateSequenceFactory.h>
Public Member Functions | |
virtual CoordinateSequence * | create (std::vector< Coordinate > *coordinates, std::size_t dimension=0) const =0 |
Returns a CoordinateSequence based on the given array. More... | |
virtual CoordinateSequence * | create (std::size_t size, std::size_t dimension) const =0 |
Creates a CoordinateSequence of the specified size and dimension. More... | |
virtual CoordinateSequence * | create (const CoordinateSequence &coordSeq) const =0 |
Creates a CoordinateSequence which is a copy of the given one. More... | |
A factory to create concrete instances of CoordinateSequences.
Used to configure GeometryFactorys to provide specific kinds of CoordinateSequences.
|
pure virtual |
Returns a CoordinateSequence based on the given array.
Whether the array is copied or simply referenced is implementation-dependent. For this reason caller does give up ownership of it. Implementations that will not copy it will need take care of deleting it. This method must handle null arguments by creating an empty sequence. @param coordinates the coordinates
dimension | 0, 2 or 3 with 0 indicating unknown at this time. |
Implemented in geos::geom::CoordinateArraySequenceFactory.
|
pure virtual |
Creates a CoordinateSequence of the specified size and dimension.
For this to be useful, the CoordinateSequence implementation must be mutable.
size | the number of coordinates in the sequence |
dimension | the dimension of the coordinates in the sequence (0=unknown, 2, or 3 - ignored if not user specifiable) |
Implemented in geos::geom::CoordinateArraySequenceFactory.
|
pure virtual |
Creates a CoordinateSequence which is a copy of the given one.
This method must handle null arguments by creating an empty sequence.
coordSeq | the coordinate sequence to copy |
Implemented in geos::geom::CoordinateArraySequenceFactory.