# Draw and Annotate Maps, Especially Charts of the North Atlantic

## Documentation for package ‘geo’ version 1.4-3

- DESCRIPTION file.
- Package NEWS.

## Help Pages

A B C D E F G I L M N O P R S T V

geo-package | Draw and Annotate Maps, Especially Charts of the North Atlantic

## -- A --

adapt | Adapts geographical positions
adjust.grd | Adjusts grid for plot in Lambert projection.
apply.shrink | Apply a function to a vector for a combination of categories.
apply.shrink.dataframe | Apply functions to columns in a dataframe
arcdist | Geographical distance computations
Arrow | Add arrow to plot.

## -- B --

bisland | Icelandic coastline, hi-resolution
bua | Makes a list used in 'pointkriging'
bwps | Open a postscript device with the color scheme given by geoplotbwpalette. (black and white)

## -- C --

circle.one.point | Find a circle around a point
Closed.curve | Closed smooth curve through positions
colps | Open a postscript device with the color scheme given by geoplotpalette.
colsymbol | Plot colored symbols
combine.rt | Aggregate data on square grid, pad with zeros. Faster than tapply.
COUNTRY.DEFAULT | Default country for 'geo'.
currentarrows | Plot arrows and segments showing the size and direction of currents.
cut_box.1 | Cut box ?
cut_box.2 | Cut box type 2???
cut_multipoly | Intersect or take complement (?) of polygons

## -- D --

d2dr | Given position return rectangle code.
d2ir | Convert between Geographic Coordinates and ICES Rectangles
d2mr | Given position return rectangle code.
d2r | Given position return rectangle code.
d2sr | Given position return rectangle code.
deg2rect | Given position return rectangle code.
depthloc | Depth label locations.
dr2d | Given rectangle code return its center position.
drA | Given rectangle code return area in square kilometers or nautical miles
drgrid | Produce a grid of rectangles on a plot, filled with colors if desired.
drPeri | Given rectangle code return perimeter as a polygon in lat lon

## -- E --

Elimcomp | Parameters manipulation ?
extract | Extract a grid (?)
eyjar | Icelandic islands

## -- F --

faeroes | Coastline of Faroe Islands
fill.matrix | Relace elements of a matrix
fill.outside.border | Fills space outside the border of a plot.
fill.points | Fill points (thicken)
find.hnit | Find coordinate(s) ??
findcut | Find intersection or complement
findline | Finds a line (?)
fitspher.aut.1 | Fits a super-smoother to a variogram (?)
frame2gpx | Convert latlon data frame to gpx file.

## -- G --

gbdypi | Isobaths in the NE-Atlantic
gbdypi.100 | GEBCO 100 m isobath in the N-Atlantic.
gbdypi.1000 | GEBCO 1000 m isobath in the N-Atlantic.
gbdypi.200 | GEBCO 200 m isobath in the N-Atlantic.
gbdypi.400 | GEBCO 400 m isobath in the N-Atlantic.
gbdypi.500 | GEBCO 500 m isobath in the N-Atlantic.
gbdypi.800 | GEBCO 800 m isobath in the N-Atlantic.
gbdypif.200 | GEBCO 200 m isobath around Iceland.
gbdypif.400 | GEBCO 400 m isobath around Iceland.
gbdypif.500 | GEBCO 500 m isobath around Iceland.
gbplot | GEBCO plot. Plots equidepth lines.
geo | Draw and Annotate Maps, Especially Charts of the North Atlantic
geo.Split.poly | Split a polygon into a list
geoarea | Calculates the area of a given region.
geoarea.old | Old method for calculating geographical area
geoaxis | Setup axes for a geoplot
geochull | Convex hull of a set of positions
geocontour | Plots contour lines.
geocontour.fill | geocontour.fill plots colored or black and white contours on a graph made by geoplot.
geoconvert | Convert latitude and longitude
geoconvert.1 | Convert to decimal degrees
geoconvert.2 | Convert from decimal degrees
geocurve | Smooth curves and put arrows in the beginning and end.
geodefine | Defines regions.
geodezoom | Restores a zoomed plot.
geoexpand | expands a grid to a dataframe.
geogrid | Plots a grid.
geoidentify | Identifies points on plots using lat and lon coordinates.
geoinside | Finds a subset of a given set of data which is inside a given region.
geointersect | Find intersection of 2 polygons
geolegend | Put a legend on a plot in the geo series.
geolines | Add lines to current plot initialized by geoplot.
geolines.with.arrows | Add arrowhead to plot
geolocator | Locates points on a plot initialized by geoplot.
geopar | Parameters for the geo plot functions.
geopar.std | Parameters for the geo plot functions.
geoplot | Plots lat and lon coordinates using Mercator or Lambert transformation.
geoplotbwpalette | Black and white palette
geoplotpalette | Set define a traditional geoplot-palette
geopoints | Adds points on plots initialized by geoplot.
geopolygon | Fill an area.
geoSR | Plot Squares in Different Colors
geosubplot | Adds a plot to an existing plot initialized by geoplot.
geosymbols | Plot different kinds of symbols at the data points.
geotext | Plots text on a drawing defined by geoplot.
geotows | Plot tows as line segments
geoworld | Plots rough outline of the world.
geozoom | Zoom into plots.
gepco500 | GEBCO 500 m isobath extending around the Faroes.
giveborder | Define regions intteractively
glaciers | Outlines of Icelandic glaciers.
greenland | Outline of Greenland.
gridaxes | Set up axes for a geoplot
gridaxes.Lambert | Set up axes for a Lambert projected geoplot
gridpoints | Produce gridpoints over an area

## -- I --

icelandrivers | Icelandic rivers.
ices | ICES Areas
init | Initiate a geoplot (??)
inside | Finds a subset of data inside (or outside) a region
inside.reg.bc | Determine which bormicon (or gadget) region data belong to.
inside.reg.bc1 | Determine which bormicon (or gadget) region data belong to.
inside.reg.lump | Inside region in lumpsucker fishery
intra.point.dist | Intra point/position distance
invlambert | Inverse Lambert projection
invmerc | Inverse Mercator Projection
invProj | Performs the inverse Mercator or Lambert projection of data.
ir2d | Convert between Geographic Coordinates and ICES Rectangles
island | Icelandic coastline.

## -- L --

labels1 | Label plots
labels2 | Label plots
labels_line | Labels line ?
labels_size | Label symbols of given size
lambert | Lambert projection
litir | Display palette in effect
locdist | Distance between two locations

## -- M --

mercator | Mercator projection
mr2d | Given rectangle code return its center position.
mrA | Given rectangle code return area in square kilometers or nautical miles
mrgrid | Produce a grid of rectangles on a plot, filled with colors if desired.
mrPeri | Given rectangle code return perimeter as a polygon in lat lon

## -- N --

nonsetpar | Some parameter settings.

## -- O --

Open.curve | Open smooth curve through positions
orthproj | Performs an orthogonal projection to a curve.

## -- P --

paint.window | Paint window for label?
paint.window.x | Paint window for label ?
pdist | Spherical (?) distance
pdistx | Euclidian distance
plot_nogrid | Grid control ?
plot_reitnr | Plots rectangle codes
pltgrid | Plots grid lines
plvar | Plots a variogram estimated by variofit.
pointkriging | interpolates regularly spaced data on a grid.
postcol | Old palette.
pre2s | Read prelude files
prepare.line | Prepare a line ?
Proj | Performs Mercator or Lambert projection of data.
ps | Periodic spline

## -- R --

r2d | Given rectangle code return its center position.
rA | Given rectangle code return area in square kilometers or nautical miles
rect2deg | Given rectangle code return its center position.
rectArea | Given rectangle code return area in square kilometers or nautical miles
rectPeri | Given rectangle code return perimeter as a polygon in lat lon
reg.bc | Bormicon regions
reg.lump | Lumpfish regions
reitaplott | Function that fills rectangles or sub-rectangles according to the amount of fish calculated in them.
Reitur2Svaedi1to10 | Allocate statistical rectangles and subrectangles to Bormicon-areas 1-10.
rGrid | Produce a grid of rectangles on a plot, filled with colors if desired.
rgrid | Produce a grid of rectangles on a plot, filled with colors if desired.
Rlitir | Display colors.
rPeri | Given rectangle code return perimeter as a polygon in lat lon

## -- S --

s2pre | Writes out data.frame or matrix to a prelude-file.
SegmentWithArrow | Plot line segment with arrow at the end.
selectedpar | Parameters manipulation ?
selpos | Geographical point selection.
Set.grd.and.z | Manipulate grid and z-values for contouring.
setgrid | Produce a grid over an area
shadeborder | Shade border ?
shading1 | Shading of geoplots?
skipta.texta | Translate characters in column names
SMB.std.background | Standard background for the SMB.
spherical | Spherical??
sr2d | Given rectangle code return its center position.
srA | Given rectangle code return area in square kilometers or nautical miles
srgrid | Produce a grid of rectangles on a plot, filled with colors if desired.
srPeri | Given rectangle code return perimeter as a polygon in lat lon
subplot | Add subplot

## -- T --

twohmiles | The Icelandic EEZ.

## -- V --

variofit | Function that fits a model to a variogram.
variogram | Calculates the distance between each pair of datapoints.