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[GEMPAK #AWA-355949]: Re: Higher resolution topographic gempak sat files
- Subject: [GEMPAK #AWA-355949]: Re: Higher resolution topographic gempak sat files
- Date: Tue, 10 Apr 2007 11:25:30 -0600
Alan,
The lut columns can be used to name colors etc. The actual format of the file
is:
!Color name Abrev Red Green Blue X color name
The file I sent has some entries in the "X Color name" column because I started
from
a ramped color table mapping various grayscales (eg 0 to 255 shades).
The actual fortran code in GEMPAK reads from column locations, so you just need
to ensure that the
Red, Green, and Blue values stay in those 3 character columns.
If you arrive at a more subdues and pleasing color table, I'd be happy to make
it a part of
the distribution I send out.
Steve Chiswell
Unidata User Support
> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
> <html>
> <head>
> <meta content="text/html;charset=UTF-8" http-equiv="Content-Type">
> </head>
> <body bgcolor="#ffffff" text="#000000">
> Steve,<br>
> <br>
> I was going to next try to modify that upc_dem5.tbl to try to tweak the
> colors a bit. Why is there a fourth column with some of the values?<br>
> <br>
> Thanks<br>
> <br>
> Unidata GEMPAK Support wrote:
> <blockquote cite="address@hidden" type="cite">
> <blockquote type="cite">
> <pre wrap="">Hi Steve,
> I was on vacation when you sent this and just had a chance to try it
> out. It looks great! :)
>
> Thanks.
>
> Alan
> </pre>
> </blockquote>
> <pre wrap=""><!---->
> Alan,
>
> OK, sounds like you ahve enough to start working with at the moment.
> I'm moving ahead with grid to image conversion so that all of this
> header stuff can be configured by the user (aka you) so that the product
> can be tailored as needed.
>
> Steve Chiswell
> Unidata User Support
>
>
>
>
>
>
>
>
> </pre>
> <blockquote type="cite">
> <pre wrap=""><br>
> Unidata GEMPAK Support wrote:
> <blockquote cite=<a class="moz-txt-link-rfc2396E"
> href="mailto:address@hidden";>"address@hidden"</a> type="cite">
> <pre wrap="">Alan,
>
> Your version of GEMPAK is limited in the channel numbers that will be
> expected in the GINI image, and the channel 16 I used is
> outside of the allowed range. I had thought I made it low enough,
> but didn't. I always increase my allowed channel numbers here since
> the sounder products on NOAAPort use that higher range of numbers.
>
> I've modified the channel number from 16 down to 5 in the attached
> ustopo_dem5.gini2, and the imgtyp.tbl entry is:
> TOPO TOPO_DEM5 0 95 33 16 1 upc_dem5.tbl
>
> Try this and see if it works for you.
>
> I'm working on seeing if I can use AREA instead of GINI that would avoid some
> of these hassles- just don't want to create problems reusing old GOES7 numbers
> in case someone is using GOES7 data for something out there.
>
> Steve Chiswell
> Unidata User Support
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">Hi Steve,
>
> After not touching this for a while I am now resuming work on it again.
>
> But still no luck and I am getting the same error:
>
> "[IM 1] No image type entry for file ustopo_dem5.gini"
>
>
> I did make the correction to the imgtyp.tbl that you suggested:
>
> TOPO TOPO-DEM5 0 95 33 32768 1 upc_dem5.tbl
>
>
> I am not sure what else to try.
>
> Alan
>
>
> Steve Chiswell wrote:
> </pre>
> <blockquote type="cite">
> <pre wrap="">Alan,
>
> The entry in imgtyp.tbl you have below has the wrong channel ID. It
> should
> be 32768 (not 32761). The number is channel 16 (which equates to
> 2**(16-1)).
>
> The gini image is the same format as the remapped imagery that NESDIS
> puts on NOAAPORT. I'm using the GOES-7 satellite ID (shouldn't get any
> conflicts there)
> and channel 16 which is outside the range of bands for GOES-7 as well.
>
> Steve Chiswell
> Unidata User Support
>
>
> On Wed, 2007-01-24 at 09:51 -0500, <a class="moz-txt-link-abbreviated"
> href=<a class="moz-txt-link-rfc2396E"
> href="mailto:address@hidden";>"mailto:address@hidden";</a>><a
> class="moz-txt-link-abbreviated"
> href="mailto:address@hidden";>address@hidden</a></a> wrote:
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">Steve,
>
> I was able to provide to the requestor a 300 dpi copy of the chart in
> question with the old "low res" topo as they don't need the hi res for a
> while.
>
> So now I am trying to play with it a bit and am stuck.
>
> Here's what I did.
>
> 1. Downloaded the ustopo_dem5.gini and upc_dem5.tbl from the links you
> provided.
>
> 2. Then copied locally a copy of the imgtyp.tbl into the same directory
> I am running gpmap.
>
> 3. Next I added the following entry to that, per your recommendation:
> TOPO TOPO_DEM5 0 95 33 32761 upc_dem5.tbl
>
> 4. And finally this is what I have for entries in gpmap
> MAP = 1
> MSCALE = 0
> GAREA = dset
> PROJ = sat
> SATFIL = ustopo_dem5.gini
> RADFIL =
> IMCBAR =
> LATLON =
> PANEL = 0
> TITLE = 1
> TEXT = 1
> CLEAR = YES
> DEVICE = XW
> LUTFIL = upc_dem5.tbl
>
> Yet when I run it I get this error:
>
> "[IM 1] No image type entry for file ustopo_dem5.gini"
>
> I'm not sure what I am doing wrong here. Any recommedations would be
> greatly appreciated.
>
> I assume that the "gini" file is in the correct format and doesn't need
> to be converted?
>
> Thanks
>
> Alan
>
>
>
>
>
>
>
> ----- Original Message -----
> From: Steve Chiswell <a class="moz-txt-link-rfc2396E" href=<a
> class="moz-txt-link-rfc2396E"
> href="mailto:address@hidden";>"mailto:address@hidden";</a>>&lt;address@hidden&gt;</a>
> Date: Thursday, January 11, 2007 5:58 pm
> Subject: Re: Higher resolution topographic gempak sat files
>
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">Alan,
>
> I'll be out of the office next week for the AMS, but would be
> happy to
> work with you
> more after I return.
>
> It would be possible for me to provide you with the topo to grid to
> image programs,
> but you would have to run my binaries to do that until your version of
> GEMPAK is capable of handling larger grids (since I use the grid
> navigation routines to handle the
> transformation from lat/lon projection to other projections). So,
> for a
> quick start,
> I provided a sample using the 5min dem data since it included
> bathymetryas the image you are currently using does.
>
> I created a ~6km resolution GIF as a sample from the 5min dem data at:
> <a class="moz-txt-link-freetext" href=<a class="moz-txt-link-rfc2396E"
> href="http://www.unidata.ucar.edu/staff/chiz/gifs/topo_nam.gif";>"http://www.unidata.ucar.edu/staff/chiz/gifs/topo_nam.gif";</a>><a
> class="moz-txt-link-freetext"
> href="http://www.unidata.ucar.edu/staff/chiz/gifs/topo_nam.gif";>http://www.unidata.ucar.edu/staff/chiz/gifs/topo_nam.gif</a></a>
>
> You can download the gini file that created the image at:
> <a class="moz-txt-link-freetext" href=<a class="moz-txt-link-rfc2396E"
> href="http://www.unidata.ucar.edu/staff/chiz/gifs/ustopo_dem5.gini";>"http://www.unidata.ucar.edu/staff/chiz/gifs/ustopo_dem5.gini";</a>><a
> class="moz-txt-link-freetext"
> href="http://www.unidata.ucar.edu/staff/chiz/gifs/ustopo_dem5.gini";>http://www.unidata.ucar.edu/staff/chiz/gifs/ustopo_dem5.gini</a></a>
>
> For GINI, I used the GOES7 satellite ID here since you probably cannot
> remap an unused ID with your version of GEMPAK. The
> $GEMTBL/sat/imgtyp.tbl entry to display this image is:
> TOPO TOPO_DEM5 0 95 33 32768 1
> upc_dem5.tbl
>
> You can download the color table for your $GEMTBL/luts directory here:
> <a class="moz-txt-link-freetext" href=<a class="moz-txt-link-rfc2396E"
> href="http://www.unidata.ucar.edu/staff/chiz/gifs/upc_dem5.tbl";>"http://www.unidata.ucar.edu/staff/chiz/gifs/upc_dem5.tbl";</a>><a
> class="moz-txt-link-freetext"
> href="http://www.unidata.ucar.edu/staff/chiz/gifs/upc_dem5.tbl";>http://www.unidata.ucar.edu/staff/chiz/gifs/upc_dem5.tbl</a></a>
>
> The GPMAP parameters to display the image as the GIF above is shown
> below, where I've added:
> BND = lakes/24
> to fill in the lakes as water color (since the DEM data would be above
> sea level and not blue there). You can set the GAREA smaller than dset
> as necessary.
>
> GAREA = dset
> PROJ = sat
> SATFIL = ustopo_dem5.gini
> BND = lakes/24
> LUTFIL = default
>
> The 30 second data is great for smaller areas where you can take
> advantage of the resolution, more therelater if you feed this is where
> you want to go.
>
> Steve Chiswell
> Unidata User Support
>
> On Tue, 2007-01-09 at 14:07 -0500, <a class="moz-txt-link-abbreviated"
> href=<a class="moz-txt-link-rfc2396E"
> href="mailto:address@hidden";>"mailto:address@hidden";</a>><a
> class="moz-txt-link-abbreviated"
> href="mailto:address@hidden";>address@hidden</a></a> wrote:
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">Steve,
>
> It's hard to say just what kind of resolution that we need as I
>
> </pre>
> </blockquote>
> <pre wrap="">am not
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">sure what we are currently using. I think that maybe the
> one we
>
> </pre>
> </blockquote>
> <pre wrap="">use is 5
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">min. We have had it for at least 5 years.
>
> I really do not want this to be a lot of work for you. Is there
>
> </pre>
> </blockquote>
> <pre wrap="">any way
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">that we could run the grid-to-image conversion on the data
> so we
>
> </pre>
> </blockquote>
> <pre wrap="">could&gt; play around with various data sets to see
> what we like?
> (That assumes it
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">would run on our workstations, which run RHEL3 and RHEL4.)
> It
>
> </pre>
> </blockquote>
> <pre wrap="">would be
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">nice to have some background for general use that is
> better than
>
> </pre>
> </blockquote>
> <pre wrap="">what we
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">have now but also a much better background if we need to
> produce
>
> </pre>
> </blockquote>
> <pre wrap="">much&gt; higher quality images for publication.
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">Alan
>
>
> ----- Original Message -----
> From: Steve Chiswell <a class="moz-txt-link-rfc2396E" href=<a
> class="moz-txt-link-rfc2396E"
> href="mailto:address@hidden";>"mailto:address@hidden";</a>>&lt;address@hidden&gt;</a>
> Date: Tuesday, January 9, 2007 12:43 pm
> Subject: Re: Higher resolution topographic gempak sat files
>
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">Alan,
>
> I have created both 30 second and 5 minute global topography
>
> </pre>
> </blockquote>
> </blockquote>
> <pre wrap="">(dem)
>
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">datasets.
> The 5 minute dem data has bathymetry, while the 30 second data
>
> </pre>
> </blockquote>
> </blockquote>
> <pre wrap="">set
>
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">doesnot.
>
> I provide these as a grid
> (<a class="moz-txt-link-freetext" href=<a class="moz-txt-link-rfc2396E"
> href="http://www.unidata.ucar.edu/downloads/gempak/tables/";>"http://www.unidata.ucar.edu/downloads/gempak/tables/";</a>><a
> class="moz-txt-link-freetext"
> href="http://www.unidata.ucar.edu/downloads/gempak/tables/";>http://www.unidata.ucar.edu/downloads/gempak/tables/</a></a>)
> for use with a program I call GDTOPO which allows users to
>
> </pre>
> </blockquote>
> </blockquote>
> <pre wrap="">create a
>
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">subset for a Gempak grid file. However, it would be
> possible to
>
> </pre>
> </blockquote>
> </blockquote>
> <pre wrap="">map
>
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">thegrid into an image to use as a background using the same
>
> </pre>
> </blockquote>
> </blockquote>
> <pre wrap="">grid to
>
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">imageconversion that I do for our
> radar composite images.
>
> If you can provide some information regarding the resolution
> (pixel--&gt;km) you
> need, I can look into making some background images.
>
> Steve Chiswell
> Unidata User Support
>
>
>
>
> On Tue, 2007-01-09 at 10:50 -0500, Alan Robson wrote:
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">Hi Mr Chiswell,
>
> My name is Alan Robson and I work in the Development and
>
> </pre>
> </blockquote>
> </blockquote>
> </blockquote>
> <pre wrap="">Training
>
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">Branch
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">of the Hydrometeorological Precipitation Center in Camp
>
> </pre>
> </blockquote>
> </blockquote>
> </blockquote>
> <pre wrap="">Springs,
>
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">Maryland. I am not sure if you the right person to
> address
>
> </pre>
> </blockquote>
> </blockquote>
> </blockquote>
> <pre wrap="">this
>
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">request to and hope you will forward it to the appropriate
>
> </pre>
> </blockquote>
> <pre wrap="">individual if
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">you are not.
>
> We produce many meteorological products for our webpage (
> <a class="moz-txt-link-freetext" href=<a class="moz-txt-link-rfc2396E"
> href="http://www.hpc.ncep.noaa.gov/";>"http://www.hpc.ncep.noaa.gov/";</a>><a
> class="moz-txt-link-freetext"
> href="http://www.hpc.ncep.noaa.gov/";>http://www.hpc.ncep.noaa.gov/</a></a>
> ) that use a fairly low
>
> </pre>
> </blockquote>
> </blockquote>
> </blockquote>
> <pre wrap="">resolution
>
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">topographic gempak sat file as a background. This is a
>
> </pre>
> </blockquote>
> </blockquote>
> </blockquote>
> <pre wrap="">sample
>
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">of one
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">of our most popular products that gets very many webhits:
> <a class="moz-txt-link-freetext" href=<a class="moz-txt-link-rfc2396E"
> href="http://www.hpc.ncep.noaa.gov/noaa/noaa.gif";>"http://www.hpc.ncep.noaa.gov/noaa/noaa.gif";</a>><a
> class="moz-txt-link-freetext"
> href="http://www.hpc.ncep.noaa.gov/noaa/noaa.gif";>http://www.hpc.ncep.noaa.gov/noaa/noaa.gif</a></a>
>
> We are currently attempting to improve the appearance of our
>
> </pre>
> </blockquote>
> <pre wrap="">products
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">and need to find a higher resolution version of the
>
> </pre>
> </blockquote>
> </blockquote>
> </blockquote>
> <pre wrap="">topographic
>
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">gempak
>
> </pre>
> <blockquote type="cite">
> <pre wrap="">satellite file to use as a background.
>
> Can you help us or give me the name of someone who can?
>
> Thanks
>
> Alan Robson
> HPC/NCEP
> Camp Springs, MD
>
>
> </pre>
> </blockquote>
> <pre wrap="">--
> Steve Chiswell <a class="moz-txt-link-rfc2396E" href=<a
> class="moz-txt-link-rfc2396E"
> href="mailto:address@hidden";>"mailto:address@hidden";</a>>&lt;address@hidden&gt;</a>
> Unidata
>
>
> </pre>
> </blockquote>
> </blockquote>
> <pre wrap="">--
> Steve Chiswell <a class="moz-txt-link-rfc2396E" href=<a
> class="moz-txt-link-rfc2396E"
> href="mailto:address@hidden";>"mailto:address@hidden";</a>>&lt;address@hidden&gt;</a>
> Unidata
>
>
> </pre>
> </blockquote>
> </blockquote>
> </blockquote>
> <pre wrap="">
> </pre>
> </blockquote>
> <pre wrap=""><!---->
>
> Ticket Details
> ===================
> Ticket ID: AWA-355949
> Department: Support GEMPAK
> Priority: Normal
> Status: Closed</pre>
> </blockquote>
> </body>
> </html>
>
>
> </pre>
> </blockquote>
> <pre wrap=""><!---->
>
> Ticket Details
> ===================
> Ticket ID: AWA-355949
> Department: Support GEMPAK
> Priority: Normal
> Status: Closed
>
> </pre>
> </blockquote>
> </body>
> </html>
>
>
Ticket Details
===================
Ticket ID: AWA-355949
Department: Support GEMPAK
Priority: Normal
Status: Closed
![http://www.unidata.ucar.edu/staff/chiz/gifs/topo_nam.gif"](http://www.unidata.ucar.edu/staff/chiz/gifs/topo_nam.gif"){kind=link}
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