#!/bin/sh

# Set common options
PROJECTION=Q-78.5/19.37/15c
REGION=-99/-58/6/32
FILENAME=Middle_America_location_map.ps

# Get Natural Earth datafiles
echo "Downloading datafiles from naturalearthdata.com"
wget -nv -nc \
 http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/50m/physical/50m-coastline.zip\
 http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/50m/physical/50m-land.zip\
 http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/50m/cultural/50m-admin-0-countries.zip
echo "...done\n"

echo "Inflating archives"
unzip 50m\*.zip
unzip 110m\*.zip
echo "...done\n"

echo "Converting shapefiles to GMT"
ogr2ogr -F GMT 50m_land.gmt 50m_land.shp
ogr2ogr -F GMT 50m_coastline.gmt 50m_coastline.shp
ogr2ogr -F GMT 50m_borders.gmt ne_50m_admin_0_boundary_lines_land.shp
echo "...done\n"

echo "Creating maps"
GMT psxy -m -J$PROJECTION -R$REGION --PAGE_COLOR=198/236/255  --POLAR_CAP=none --PAPER_MEDIA=A4  --BASEMAP_TYPE=plain --BASEMAP_AXES=NESW --FRAME_PEN=0.15p,black 50m_land.gmt -K -G254/254/233 > $FILENAME
GMT psxy -m -J$PROJECTION -R$REGION 50m_coastline.gmt -O -K -W0.535p,9/120/171  >> $FILENAME
GMT psxy -m -J$PROJECTION -R$REGION 50m_borders.gmt -O -W100/100/100  >> $FILENAME
echo "...done\n"

echo "You can now open $FILENAME in Inkscape to clean up the file and save it as SVG. You should add an ocean coloured background and simplify the graticules using CTRL+L."

gv $FILENAME