leepacific

GI[,coast] = leepacific(fname::String|GI::GItype; latlims=nothing, lonlims=nothing, coast=true)

Project a geographical grid/image in the Lee Oblated Stereographic projection centered on the Pacific Ocean.

• GI: A GMTgrid or GMTimage data type. GI can also be a string with a file name of a grid or image. NOTE: This grid/image should (ideally) have longitudes covering the range 76 to 319 degrees (here lon in [0 360] is better)

• latlims: Latitudes used in region when reading the grid/image. The default is (-87, 75).

• lonlims: Longitudes used in region when reading the grid/image. You cannot deviate mutch from (90,300). Actually, while a bug in GDAL is not fixed, you should not change the default values.

• coast: Return also the coastlines projected with proj. Pass coast=res, where res is one of GMT coastline resolutions (e.g. :crude, :low, :intermediate). coast=true is <==> coast=:crude Pass coast=D, where D is vector of GMTdataset containing coastline polygons with a provenience other than the GSHHG GMT database. If coast=false the funtion returns only the projected grid/image.

Note: This function uses worldrectangular with the +proj=lee_os projection. If one wants to add other elements to the map (points, lines, etc) one must projectem first with the +proj=lee_os projection (use lonlat2xy or mapproject to that purpose).

Returns

A grid or a image and optionally the coastlines .

Example

using GMT
G,cl = leepacific("@earth_relief_20m_g");
grdimage(G, shade=true, plot=(data=cl,), cmap=:geo, B=:none)
plotgrid!(G, show=true)

See Also

coastlinesproj, graticules, plotgrid!, worldrectangular, worldrectgrid, worldrectcoast, Best rectangular world map projection