geos::operation::overlay::snap::GeometrySnapper Class Reference

Snaps the vertices and segments of a geometry to another's vertices. Should improve robustness for overlay operations. More...

#include <GeometrySnapper.h>

List of all members.

Public Types
typedef std::auto_ptr< geom::Geometry >	GeomPtr
typedef std::pair< GeomPtr, GeomPtr >	GeomPtrPair
Public Member Functions
	GeometrySnapper (const geom::Geometry &g)
std::auto_ptr< geom::Geometry >	snapTo (const geom::Geometry &g, double snapTolerance)
	Snaps the vertices in the component LineStrings of the source geometry to the vertices of the given snap geometry with a given snap tolerance.
Static Public Member Functions
static void	snap (const geom::Geometry &g0, const geom::Geometry &g1, double snapTolerance, GeomPtrPair &ret)
static double	computeOverlaySnapTolerance (const geom::Geometry &g)
	Estimates the snap tolerance for a Geometry, taking into account its precision model.
static double	computeSizeBasedSnapTolerance (const geom::Geometry &g)
static double	computeOverlaySnapTolerance (const geom::Geometry &g1, const geom::Geometry &g2)
	Computes the snap tolerance based on input geometries;.

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Detailed Description

Snaps the vertices and segments of a geometry to another's vertices. Should improve robustness for overlay operations.

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Constructor & Destructor Documentation

geos::operation::overlay::snap::GeometrySnapper::GeometrySnapper (  const geom::Geometry &  g  )  [inline]

Creates a new snapper acting on the given geometry Parameters: g  the geometry to snap

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Member Function Documentation

static double geos::operation::overlay::snap::GeometrySnapper::computeOverlaySnapTolerance (  const geom::Geometry &  g  )  [static]

Estimates the snap tolerance for a Geometry, taking into account its precision model. Parameters: g  a Geometry Returns: the estimated snap tolerance

static void geos::operation::overlay::snap::GeometrySnapper::snap (  const geom::Geometry &  g0, const geom::Geometry &  g1, double  snapTolerance, GeomPtrPair &  ret )  [static]

Snaps two geometries together with a given tolerance. Parameters: g0  a geometry to snap g1  a geometry to snap snapTolerance  the tolerance to use ret  the snapped geometries as a pair of auto_ptrs (output parameter)

std::auto_ptr<geom::Geometry> geos::operation::overlay::snap::GeometrySnapper::snapTo (  const geom::Geometry &  g, double  snapTolerance )

Snaps the vertices in the component LineStrings of the source geometry to the vertices of the given snap geometry with a given snap tolerance. Parameters: g  a geometry to snap the source to snapTolerance  Returns: a new snapped Geometry

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

• GeometrySnapper.h

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