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rgeos (version 0.2-19)

Interface to Geometry Engine - Open Source (GEOS)

Description

Interface to Geometry Engine - Open Source (GEOS) using the C API for topology operations on geometries. The GEOS library is external to the package, and, when installing the package from source, must be correctly installed first. Windows and Mac Intel OS X binaries are provided on CRAN.

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Version

Install

install.packages('rgeos')

Monthly Downloads

418

Version

0.2-19

License

GPL (>= 2)

Maintainer

Roger Bivand

Last Published

June 22nd, 2013

Functions in rgeos (0.2-19)

SpatialRingsDataFrame-class

Class "SpatialRingsDataFrame"
new-generics

Generics/Methods for polygon objects
gIsEmpty

Is Geometry Empty?
gCentroid

Centroid of Geometry
gPolygonize

Linestring Polygonizer
gRelate

Geometry Relationships - Intersection Matrix Pattern (DE-9IM)
gUnion

Geometry Union
gDifference

Geometry Difference
gBoundary

Boundary of Geometry
SpatialCollections

create SpatialCollections
RGEOS Utility Functions

RGEOS Utility Functions
gIntersects

Geometry Relationships - Intersects and Disjoint
gDistance

Distance between geometries
gSymdifference

Geometry Symmetric Difference
gPointOnSurface

Point on Surface of Geometry
SpatialCollections-class

Class "SpatialCollections"
Ring-class

Class "Ring"
gContains

Geometry Relationships - Contains and Within
gpc.poly.nohole-class

Class "gpc.poly.nohole"
gBuffer

Buffer Geometry
polygonsLabel

Compute optimal label positions for polygons
SpatialRings-class

Class "SpatialRings"
gIntersection

Geometry Intersections
polyfile

Read/Write polygon data
RGEOS WKT Functions

RGEOS WKT Functions
SpatialRings

create SpatialRings or SpatialRingsDataFrame
gConvexHull

Convex Hull of Geometry
gLength

Length of Geometry
gEquals

Geometry Relationships - Equality
gpc.poly-class

Class "gpc.poly"
gTouches

Geometry Relationships - Touches
gIsRing

Is Geometry a Ring?
RGEOS Experimental Functions

Experimental Functions
RGEOS Polygon Hole Comment Functions

RGEOS Polygon Hole Comment Functions
gIsValid

Is Geometry Valid?
gEnvelope

Envelope of Geometry
gIsSimple

Is Geometry Simple?
gArea

Area of Geometry
gSimplify

Simplify Geometry
gCrosses

Geometry Relationships - Crosses and Overlaps