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rgeos (version 0.6-2)

Interface to Geometry Engine - Open Source ('GEOS')

Description

Interface to Geometry Engine - Open Source ('GEOS') using the C 'API' for topology operations on geometries. Please note that 'rgeos' will be retired during 2023, plan transition to sf functions using 'GEOS' at your earliest convenience. 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'. ('rgeos' >= 0.5-1): Up to and including 'GEOS' 3.7.1, topological operations succeeded with some invalid geometries for which the same operations fail from and including 'GEOS' 3.7.2. The 'checkValidity=' argument defaults and structure have been changed, from default FALSE to integer default '0L' for 'GEOS' < 3.7.2 (no check), '1L' 'GEOS' >= 3.7.2 (check and warn). A value of '2L' is also provided that may be used, assigned globally using 'set_RGEOS_CheckValidity(2L)', or locally using the 'checkValidity=2L' argument, to attempt zero-width buffer repair if invalid geometries are found. The previous default (FALSE, now '0L') is fastest and used for 'GEOS' < 3.7.2, but will not warn users of possible problems before the failure of topological operations that previously succeeded. From 'GEOS' 3.8.0, repair of geometries may also be attempted using 'gMakeValid()', which may, however, return a collection of geometries of different types.

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Version

Install

install.packages('rgeos')

Monthly Downloads

759

Version

0.6-2

License

GPL (>= 2)

Maintainer

Roger Bivand

Last Published

March 2nd, 2023

Functions in rgeos (0.6-2)

SpatialRingsDataFrame-class

Class "SpatialRingsDataFrame"
RGEOS Experimental Functions

Experimental Functions
bbox2SP

Converts a bounding box into a SpatialPolygons object.
polyfile

Read/Write polygon data
SpatialCollections-class

Class "SpatialCollections"
new-generics

Generics/Methods for polygon objects
gTouches

Geometry Relationships - Touches
polygonsLabel

Compute optimal label positions for polygons
SpatialRings-class

Class "SpatialRings"
SpatialCollections

create SpatialCollections
SpatialRings

create SpatialRings or SpatialRingsDataFrame
over

Find spatial join or intersections
Ring-class

Class "Ring"
gArea

Area of Geometry
gIsEmpty

Is Geometry Empty?
gIsValid

Is Geometry Valid?
gDistance

Distance between geometries
gContains

Geometry Relationships - Contains and Within
gUnion

Geometry Union
gIsRing

Is Geometry a Ring?
gBoundary

Boundary of Geometry
gIsSimple

Is Geometry Simple?
gInterpolate

Interpolate Points along Line Geometry
gProject

Project Points to Line Geometry
rgeos-deprecated

Deprecated functions and methods
gCentroid

Centroid of Geometry
gMaximumInscribedCircle

Centroid of Geometry
gMinumumRotatedRectangle

Centroid of Geometry
gpc.poly.nohole-class

Class "gpc.poly.nohole"
gEnvelope

Envelope of Geometry
gMakeValid

Make invalid geometries valid
RGEOS Polygon Hole Comment Functions

RGEOS Polygon Hole Comment Functions
gLength

Length of Geometry
gConvexHull

Convex Hull of Geometry
gNearestPoints

Closest Points of two Geometries
RGEOS Utility Functions

RGEOS Utility Functions
RGEOS WKT Functions

RGEOS WKT Functions
gCrosses

Geometry Relationships - Crosses and Overlaps
gEquals

Geometry Relationships - Equality
gIntersects

Geometry Relationships - Intersects and Disjoint
gNode

Linestring Noder
gPointOnSurface

Point on Surface of Geometry
gRelate

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

Coverage Union
gDelaunayTriangulation

Compute Delaunay triangulation between points
gPolygonize

Linestring Polygonizer
gSimplify

Simplify Geometry
gpc.poly-class

Class "gpc.poly"