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K.4.4 The high resolution (-Dh)

The relentless zooming continues! Now, the edges of the map are all 100 km true distance from the projection center. We step up to the high resolution data set as it is needed to accurately portray the detailed geographic features within the region. Because of the small scale we only ignore features less than 1 km in area. The high resolution database has undergone minor decimation and simplification by the DP-routine: The combined file size of the coastlines, rivers, and borders now swells to 12.3 Mbytes. The map and the final outline box are generated by these commands:

    pscoast `./getbox.sh -JE130.35/-0.2/3.5i 100` -J -P -Dh -A1 \
            -Glightgray -Wthinnest -N1/thinnest,- -B30mg10mWSne -K > GMT_App_K_4.ps
    ./getrect.sh 20 | psxy -R -J -O -Wthicker -L -A >> GMT_App_K_4.ps

Figure K.4: Map using the high resolution coastline data.

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