maptools v0.8-40


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