[Support #ZLR-921995]: IDV differences

Hi Bill-

> I think the numbers after the three RGB columns are precip mode reflectivity 
> | clear air mode reflectivity.

Okay.  Right now we make no distiction in the radar mode.  A color table
is a linear mapping of colors along the range.  So, in clear air mode,
you would just change the range.

> For example, the first RGB color/assigned values is "142 94 174 5|-28". I 
> believe the 5 is 5 dbZ in precip mode and the -28 is -28 dBZ in the clear air 
> mode. It must assign this RGB color (purple-ish) to either 5 dBZ or -28 dBZ 
> depending on the radar mode.
> 
> Are the GEMPAK, McIDAS, etc. color table files binary or can they be opened 
> in a text editor?

Gempak is text - three column R G B.  McIDAS is binary.

Don

> -----Original Message-----
> From: Unidata IDV Support [mailto:address@hidden]
> Sent: Thursday, September 18, 2008 12:59 PM
> To: Bauman.Bill
> Cc: address@hidden
> Subject: [Support #ZLR-921995]: IDV differences
> 
> Hi Bill-
> 
> > Thanks Don - the MetWise color tables actually are AWIPS color tables. NOAA 
> > provides about 6 satellite enhancement color tables in FX-Net/MetWise Net. 
> > I've created a couple and I've had a few users ask me to create others. Our 
> > subscriber using IDV was the first to ask if we could "import" or 
> > incorporate the IDV enhancements into MetWise. I wonder if there's been any 
> > sharing of color tables among GEMPAK, McIDAS and AWIPS.
> 
> That would be too logical. ;-)
> 
> >I'll have to ask Sher. I don't know much about color tables. I've attached a 
> >sample of the default radar reflectivity colormap in FX-Net (MetWise Net). 
> >It looks rather simple; they assign an RGB color in the first 3 columns to 
> >reflectivity values in the next couple of columns. The reflectivity value 
> >must depend on whether or not the radar is in clear air or precip mode. I'm 
> >not sure if the AWIPS colormaps have the same format or if these are FX-Net 
> >(MetWise Net) specific.
> 
> If you could find out if they are the same as AWIPS and if
> there is any docs on the format, that would be fine.
> In particular, I'd like to know what the last values are.
> Sometimes it's a string, sometimes it's 2 numbers with a | in between.
> Right now the IDV uses a linear color mapping, and this looks
> more stepped.
> 
> If you rename it to RadarReflectivity.tbl, you can import it
> into the Color Table Editor (Tools->Color Table Editor menu)
> from the File->Import menu.  Then set the range to 0 to 80
> and save it as whatever name you want.
> 
> I'll look into allowing the user to set the table
> type based regardless of the name.
> 
> Don
> -----Original Message-----
> > From: Unidata IDV Support [mailto:address@hidden]
> > Sent: Thursday, September 18, 2008 8:40 AM
> > To: Bauman.Bill
> > Cc: address@hidden
> > Subject: [Support #ZLR-921995]: IDV differences
> >
> > Hi Bill-
> >
> > > Got an IDV question for you. One of my MetWise Net subscribers asked me
> > > if we could develop satellite enhancements like those in IDV. When I
> > > looked at the available color tables in my version of IDV I have 4 for
> > > satellite as shown below.
> >
> > These are the GEMPAK color tables available in a plugin.  Go
> > to the Tools->Plugin Manager menu, expand the Color Tables
> > section and click on Install for the GEMPAK Color Tables.
> > You'll need to restart the IDV to pick up the new tables.
> >
> > As a side note, you can import any GEMPAK, McIDAS, NCL
> > color table from the Color Table Manager.  You can use
> > the Plugin Creator to import a bunch of your own color
> > tables into a plugin.  If you have another format of
> > color table that you'd like us to support (e.g. from
> > MetWise), send us a sample and we'll look into supporting
> > that format.
> >
> > Don
> >
> > Ticket Details
> > ===================
> > Ticket ID: ZLR-921995
> > Department: Support IDV
> > Priority: Normal
> > Status: Open
> >
> >
> >
> > ......................................................................
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> 
> 
> Ticket Details
> ===================
> Ticket ID: ZLR-921995
> Department: Support IDV
> Priority: Normal
> Status: Open
> 
> 
> 


Ticket Details
===================
Ticket ID: ZLR-921995
Department: Support IDV
Priority: Normal
Status: Open