>From: "Kwan-yin Kong" <address@hidden> >Organization: CCNY >Keywords: 200306171633.h5HGXmLd000512 McIDAS DSSERVE Hi Kwan-yin, >Thanks for your clarifications from your last email. No worries. >Now a question came up to me. Currently, if I have an >image displayed on a frame and I want to overlay surface >METAR data with the time that matches with that of the >frame, I can use, for example, the SFCCON command as >follows. > >SFCCON PMSL OLAY FRAME OUT=CON GRIDF=132 Yup, this is what I would use. The OUT=CON and GRIDF=132 are, by the way, not needed in the SFCCON command line. A shorter invocation would be: SFCCON PMSL OLAY FRAME >I've just realized that there is the PTCON command that >can do contouring but with more flexibility. What is it that you are wanting to do? You are correct, PTCON does have a lot more configurable parameters, but it is also more difficult to run. >However, it >does not appear to allow the FRAME parameter to be >specified to indicate that I want to use the time of the >current frame. That is correct, PTCON was not modified to understand the notion of FRAME time. >I tried the keyword SELECT='TIME FRAME' but it gave an error. Right. >So, is it true that PTCON does not >allow specifying the FRAME parameter? It is true, PTCON does not understand the notion of FRAME time. >Or is there another parameter that I have to use? Unfortunately, now. Again, what is it you want to do with PTCON that you can't do with SFCCON? Tom
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