Ferret Version 6.0 Release Notes



New Features and Enhancements in Version 6.0

Bug Fixes in Version 6.0

New Features and Enhancements in Version 6.0

  • Most functions previously distributed as external functions now statically linked for the convenience of those users who cannot use the shared-object files.

  • Longitude or latitude labels on plot axes can now be labelled with Degrees-Minutes-Seconds. (The default labelling is in degrees and decimal fractions of degrees.) To request degrees and minutes or degrees, minutes, and seconds, a PPL axis format command is used:
       yes? use "http://www.ferret.noaa.gov/cgi-bin/nph-dods/data/PMEL/smith_sandwell_topo_v8_2.nc"
       yes? fill/set/x=222.9:223.1/y=28.22:29.1 rose
       yes? ppl xfor (dm)
       yes? ppl yfor (dm)
       yes? ppl fill

    To request degrees, minutes, and seconds the syntax is PPL XFOR (DMS) or PPL YFOR (DMS). Here is an example where two lists of points are defined as longitudes and latitudes and plotted using plot/vs, with degrees, minutes, and seconds on the Y axis.

       yes? plot/vs/set/title="DMS on y axis"/vlim=2.28:2.4/hlim=144.5:144.8 xpts, ypts
       yes? ppl xfor (dm)
       yes? ppl yfor (dms)
       yes? ppl plot

    the plot; on a horizontal axis they may overwrite one another. The margins may be adjusted by defining and plotting in a viewport or by the PPL XORG or PPL YORG commands; the tic interval may be changed with the PPL tics command.

  • Bug fixes in Version 6.0