maptools v0.8-23


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