maptools v0.8-30

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by Roger Bivand

Tools for reading and handling spatial objects

Set of tools for manipulating and reading geographic data, in particular ESRI shapefiles; C code used from shapelib. It includes binary access to GSHHG shoreline files. The package also provides interface wrappers for exchanging spatial objects with packages such as PBSmapping, spatstat, maps, RArcInfo, Stata tmap, WinBUGS, Mondrian, and others.

Functions in maptools

Name Description
getinfo.shape Get shapefile header information
dotsInPolys Put dots in polygons
SpatialLinesMidPoints Line midpoints
ContourLines2SLDF Converter functions to build SpatialLinesDataFrame objects
sp2tmap Convert SpatialPolygons object for Stata tmap command
Rgshhs Read GSHHS data into sp object
readGPS GPSbabel read interface
nearestPointOnSegment Get the nearest point on a segment to a given point
SpatialLines2PolySet Convert sp line and polygon objects to PBSmapping PolySet objects
kmlLines Create and write a KML file on the basis of a given Lines object
leglabs Make legend labels
elide-methods Methods for Function elide in Package `maptools'
sp2Mondrian write map data for Mondrian
getKMLcoordinates Get a list of coordinates out of a KML file
gcDestination Find destination in geographical coordinates
kmlOverlay Create and write KML file for PNG image overlay
gzAzimuth Find azimuth for geographical coordinates
spRbind-methods rbind for spatial objects
readAsciiGrid read/write to/from (ESRI) asciigrid format
spCbind-methods cbind for spatial objects
readSplus Read exported WinBUGS maps
pal2SpatialPolygons Making SpatialPolygons objects from RArcInfo input
readShapeLines Read arc shape files into SpatialLinesDataFrame objects
map2SpatialPolygons Convert map objects to sp classes
panel.pointLabel Label placement with spplot and lattice.
pointLabel Label placement for points to avoid overlaps
gpcholes Hisaji Ono's lake/hole problem
ppp-class Virtual class "ppp"
GE_SpatialGrid Create SpatialGrid for PNG output to GE
readShapeSpatial Read shape files into Spatial*DataFrame objects
as.ppp coercion between sp objects and spatstat objects
wrld_simpl Simplified world country polygons
nowrapRecenter Break polygons at meridian for recentering
nearestPointOnLine Get the nearest point on a line to a given point
unionSpatialPolygons Aggregate Polygons in a SpatialPolygons object
readShapePoly Read polygon shape files into SpatialPolygonsDataFrame objects
kmlPolygon Create and write a KML file on the basis of a given Polygons object
checkPolygonsHoles Check holes in Polygons objects
kmlPoints Create and write a KML file on the basis of a given Points object
kmlLine Create and write a KML file on the basis of a given Lines object
thinnedSpatialPoly Douglas-Peuker line generalization for Spatial Polygons
state.vbm US State Visibility Based Map
snapPointsToLines Snap a set of points to a set of lines
kmlPolygons Create and write a KML file on the basis of a given Polygons object or list of Polygons or SpatialPolygonsDataFrame
sun-methods Methods for sun ephemerides calculations
sp2WB Export SpatialPolygons object as S-Plus map for WinBUGS
lineLabel Line label placement with spplot and lattice.
CCmaps Conditioned choropleth maps
SplashDams Data for Splash Dams in western Oregon
symbolsInPolys Place grids of points over polygons
readShapePoints Read points shape files into SpatialPointsDataFrame objects
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