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20030122: Plot Point on CIP Map

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  • Subject: 20030122: Plot Point on CIP Map
  • Date: Tue, 28 Jan 2003 15:11:09 -0700
Greg,

You have 3 options, depending on whether you intend to use the same
lat/lon points repeatedly, or they change.


1) For relatively fixed locations, or when you want to display
a large number of points, you can create a station table of
your locations, then use the STNPLT parameter in GDPLOT2 below to
plot a marker at the specified station table locations.

2) Use gpanot to plot the symbol, at the specified lat/lon location
afdter running gdplot2 for an overlay.

3) Use NMAP2 product generation to create a vgf file of your markers 
and annotations (particularly useful if you have other labels, fronts,
symbols etc to mark as well). Then, after saving the vgf filem use GPMAP
to plot the vgf file as an overlay on your GDPLOT2 map.

If you can give me a description of what and how often you want to
mark the same point, I can make an example for you.

Steve Chiswell
Unidata User Support


>From: Salottolo Greg <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200301221339.h0MDdVx25329

>Good Morning:
>
>Below displays Current Icing Potential maps. I would like to plot a symbol
>at a certain lat and lon. How can I modify the file to do this?
>
>Any help is appreciated.
>
>Thanks ..
>
>******************************
>
>#!/bin/csh
>
>gdplot2 << EOF > /dev/null
>\$MAPFIL=hipowo.cia
>MAP    =32
>GDFILE =greggem_test
>GDATTIM=allA00
>GVCORD =HGHT
>GLEVEL =5182
>GAREA  =22.5;-117;46.5;-64
>PROJ   =STR/90;-100;0/NM
>DEV    =gif|cip4.gif|1024;768
>PANEL  =0                                               
>SKIP   =0                                               
>SCALE  =2                                               
>GDPFUN =ICNG
>TYPE   =f
>CONTUR =0                                               
>LATLON =0                                               
>LINE   =
>FINT   =0.01;15;25;35;45;55;65;75;85;95
>FLINE  =0;27;25;23;22;21;20;17;16;15;14
>HILO   =                                                
>HLSYM  =                                                
>CLRBAR =32/V/ /-1|1.0/13/1/hw                            
>WIND   =0                                               
>REFVEC =                                                
>TITLE  =32/-1/ICE - FL170 ~
>TEXT   =1.5/13/1/hw                                        
>CLEAR  =YES                                               
>STREAM =                                                
>POSN   =0                                               
>COLORS =                                            
>MARKER =                                           
>GRDLBL =0                                               
>FILTER =NO                                             
>r
>
>ex
>
>EOF
>gpend
>
>***********************
>
>Greg
>
>Gregory D. Salottolo
>National Resource Specialist
>Meteorology
>National Transportation Safety Board
>490 L'Enfant Plaza  East, SW
>Washington D.C. 20594-0003
>Work 202.314.6338
>Fax 202.314.6339
>e-mail address@hidden
>
>