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coast.rst

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.. index:: ! coast

coast

|coast_purpose|

Synopsis

gmt coast |-J|parameters |SYN_OPT-R| [ |SYN_OPT-Area| ] [ |SYN_OPT-B| ] [ |-C|fill[+l|r] ] [ |-D|resolution[+f] ] [ |-E|dcw ] [ |-F|box ] [ |-G|[fill] ] [ |-I|river[/pen] ] [ |-J|z|Zparameters ] [ |-L|scalebar ] [ |-M| ] [ |-N|border[/pen] ] [ |-Q| ] [ |-S|[fill] ] [ |-T|rose ] [ |SYN_OPT-U| ] [ |SYN_OPT-V| ] [ |-W|[level/]pen ] [ |SYN_OPT-X| ] [ |SYN_OPT-Y| ] [ |SYN_OPT-bo| ] [ |SYN_OPT-p| ] [ |SYN_OPT-t| ] [ |SYN_OPT--| ]

Examples

To plot a green Africa with white outline on blue background, with permanent major rivers in thick blue pen, additional major rivers in thin blue pen, and national borders as dashed lines on a Mercator map at scale 0.1 inch/degree, use:

gmt coast -R-30/30/-40/40 -Jm0.1i -B5 -I1/1p,blue -N1/0.25p,- \
            -I2/0.25p,blue -W0.25p,white -Ggreen -Sblue -pdf africa

To plot Iceland using the lava pattern (# 28) at 100 dots per inch, on a Mercator map at scale 1 cm/degree, run:

gmt coast -RIS+r1 -Jm1c -B -Wthin -Gp28+r100 -pdf iceland

To initiate a clip path for Africa so that the subsequent colorimage of gridded topography is only seen over land, using a Mercator map at scale 0.1 inch/degree, use:

gmt begin
  gmt coast -R-30/30/-40/40 -Jm0.1i -B -G
  gmt grdimage @earth_relief_05m
  gmt coast -Q
gmt end show

To plot Great Britain, Italy, and France in blue with a red outline and Spain, Portugal and Greece in yellow (no outline), and pick up the plot domain from the extents of these countries, use:

gmt coast -JM6i -Baf -EGB,IT,FR+gblue+p0.25p,red -EES,PT,GR+gyellow -pdf map

To extract a high-resolution coastline data table for Iceland to be used in your analysis, try:

gmt coast -RIS -Dh -W -M > iceland.txt

coast will first look for coastline files in directory $GMT_SHAREDIR/coast If the desired file is not found, it will look for the file $GMT_SHAREDIR/coastline.conf. This file may contain any number of records that each holds the full pathname of an alternative directory. Comment lines (#) and blank lines are allowed. The desired file is then sought for in the alternate directories.

See Also

:doc:`gmt`, :doc:`gmt.conf`, :doc:`gmtcolors`, :doc:`grdlandmask`, :doc:`basemap`