GEMPAK Manual |
Programs
NTRANS OVERVIEW
NTRANS displays and animates N-AWIPS graphics metafiles in an X-Window.
The program is primarily used to display model fields generated by the
N-AWIPS/GEMPAK software.
NTRANS allows the selection of graphical products from a set of metafiles
stored in the database. Metafiles are generally listed by model and contain
groups of products, usually forecast sequences which may be selected for
display. For example, a metafile group could be the 500 mb height and
vorticity fields for all of the analysis and forecast times. Selection
of a metafile group loads the entire product sequence for display and
animation. Alternatively, specific frames from a group may be loaded.
The display window can be sub-divided into panels to display and animate
more than one metafile group at a time. This panel capability allows for
the comparison of different model fields, different model runs, or different
models. A "valid time" option may be set to synchronize the times for
different models or model start times. The panel structure, i.e., the
number of panels and their orientation, is user configurable. NTRANS
provides a color editing facility that allows the graphics colors to be
modified. Edited color look-up tables may be saved and restored. Colors
may be toggled to the background color (thereby turning them "off") and set
to blink to highlight particular features.
Frames or groups of frames can be printed using the NTRANS print facility.
Black and white and color postscript printers are supported. Currently,
printing of multiple panel displays is not supported.