OGRMultiLineString Class Reference

#include <ogr_geometry.h>

Inheritance diagram for OGRMultiLineString:

List of all members.

Public Member Functions
virtual const char *	getGeometryName () const
	Fetch WKT name for geometry type.
virtual OGRwkbGeometryType	getGeometryType () const
	Fetch geometry type.
virtual OGRGeometry *	clone () const
	Make a copy of this object.
virtual OGRErr	importFromWkt (char **)
	Assign geometry from well known text data.
virtual OGRErr	exportToWkt (char **) const
	Convert a geometry into well known text format.
virtual OGRErr	addGeometryDirectly (OGRGeometry *)
	Add a geometry directly to the container.

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Detailed Description

A collection of OGRLineStrings.

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Member Function Documentation

OGRErr OGRMultiLineString::addGeometryDirectly

(

OGRGeometry *

poNewGeom

)

[virtual]

Add a geometry directly to the container.

Some subclasses of OGRGeometryCollection restrict the types of geometry that can be added, and may return an error. Ownership of the passed geometry is taken by the container rather than cloning as addGeometry() does.

This method is the same as the C function OGR_G_AddGeometryDirectly().

There is no SFCOM analog to this method.

Parameters:

poNewGeom

geometry to add to the container.

Returns:

OGRERR_NONE if successful, or OGRERR_UNSUPPORTED_GEOMETRY_TYPE if the geometry type is illegal for the type of geometry container.

Reimplemented from OGRGeometryCollection.

References OGRGeometry::getGeometryType(), wkbLineString, and wkbLineString25D.

Referenced by OGRGeometryFactory::forceToMultiLineString(), and importFromWkt().

OGRGeometry * OGRMultiLineString::clone

(

)

const [virtual]

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().

Returns:

a new object instance with the same geometry, and spatial reference system as the original.

Reimplemented from OGRGeometryCollection.

References OGRGeometryCollection::addGeometry(), OGRGeometry::assignSpatialReference(), OGRGeometryCollection::getGeometryRef(), OGRGeometryCollection::getNumGeometries(), and OGRGeometry::getSpatialReference().

OGRErr OGRMultiLineString::exportToWkt

(

char **

ppszDstText

)

const [virtual]

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().

Parameters:

ppszDstText

a text buffer is allocated by the program, and assigned to the passed pointer.

Returns:

Currently OGRERR_NONE is always returned.

Reimplemented from OGRGeometryCollection.

References OGRGeometry::exportToWkt(), OGRGeometryCollection::getGeometryRef(), and OGRGeometryCollection::getNumGeometries().

const char * OGRMultiLineString::getGeometryName

(

)

const [virtual]

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().

Returns:

name used for this geometry type in well known text format. The returned pointer is to a static internal string and should not be modified or freed.

Reimplemented from OGRGeometryCollection.

Referenced by importFromWkt().

OGRwkbGeometryType OGRMultiLineString::getGeometryType

(

)

const [virtual]

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().

Returns:

the geometry type code.

Reimplemented from OGRGeometryCollection.

References OGRGeometry::getCoordinateDimension(), wkbMultiLineString, and wkbMultiLineString25D.

OGRErr OGRMultiLineString::importFromWkt

(

char **

ppszInput

)

[virtual]

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().

Parameters:

ppszInput

pointer to a pointer to the source text. The pointer is updated to pointer after the consumed text.

Returns:

OGRERR_NONE if all goes well, otherwise any of OGRERR_NOT_ENOUGH_DATA, OGRERR_UNSUPPORTED_GEOMETRY_TYPE, or OGRERR_CORRUPT_DATA may be returned.

Reimplemented from OGRGeometryCollection.

References addGeometryDirectly(), OGRGeometryCollection::empty(), getGeometryName(), and OGRLineString::setPoints().

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The documentation for this class was generated from the following files:

• ogr_geometry.h
• ogrmultilinestring.cpp