maptools v0.9-5


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Tools for Handling Spatial Objects

Set of tools for manipulating geographic data. 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', and others.

Functions in maptools

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