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rgeos (version 0.2-20)

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

723

Version

0.2-20

License

GPL (>= 2)

Maintainer

Roger Bivand

Last Published

September 2nd, 2013

Functions in rgeos (0.2-20)

gIsEmpty

Is Geometry Empty?
SpatialRingsDataFrame-class

Class "SpatialRingsDataFrame"
gpc.poly.nohole-class

Class "gpc.poly.nohole"
gDifference

Geometry Difference
new-generics

Generics/Methods for polygon objects
SpatialCollections

create SpatialCollections
RGEOS WKT Functions

RGEOS WKT Functions
gEnvelope

Envelope of Geometry
gpc.poly-class

Class "gpc.poly"
gTouches

Geometry Relationships - Touches
SpatialCollections-class

Class "SpatialCollections"
RGEOS Polygon Hole Comment Functions

RGEOS Polygon Hole Comment Functions
gBuffer

Buffer Geometry
gUnion

Geometry Union
SpatialRings

create SpatialRings or SpatialRingsDataFrame
gPointOnSurface

Point on Surface of Geometry
gIsValid

Is Geometry Valid?
gRelate

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

Length of Geometry
gSymdifference

Geometry Symmetric Difference
gCentroid

Centroid of Geometry
polygonsLabel

Compute optimal label positions for polygons
RGEOS Utility Functions

RGEOS Utility Functions
Ring-class

Class "Ring"
gIntersection

Geometry Intersections
gSimplify

Simplify Geometry
gEquals

Geometry Relationships - Equality
SpatialRings-class

Class "SpatialRings"
gContains

Geometry Relationships - Contains and Within
gIntersects

Geometry Relationships - Intersects and Disjoint
RGEOS Experimental Functions

Experimental Functions
gPolygonize

Linestring Polygonizer
gConvexHull

Convex Hull of Geometry
gArea

Area of Geometry
gDistance

Distance between geometries
gIsSimple

Is Geometry Simple?
gBoundary

Boundary of Geometry
polyfile

Read/Write polygon data
gIsRing

Is Geometry a Ring?
gCrosses

Geometry Relationships - Crosses and Overlaps