The Albers (epsg:42303) seems to be working after an upgrade to the latest TDS.
I previously had 4.3.15, which was giving errors on 42303.
Thanks
On Jul 15, 2013, at 9:32 AM, Marcos Hermida <mhermida@xxxxxxxxxxxxxxxx> wrote:
> Hi Jon,
>
> when you build TDS the ncwms.jar gets pulled from our maven repository so you
> are not actually building the ncWMS. With the ncWMS process for adding new
> codes, if an user wanted to add a new code to the epsg list they first have
> to build their own version of the ncWMS and then package the thredds with
> that version. So, to keep the building (and the way you add new epsg codes)
> process simpler we kept the epsg-wkt.jar which contains many srs codes
> already in use by clients.
> I guess we could build our tds-ncwms.jar adding all the codes (or at least
> the most used) that are in the epsg-wkt.jar with the ncWMS mechanism and add
> the geotk-epsg and hsqldb dependencies to TDS, that way TDS would use the
> Geotoolkit EPSG database too and would be closer to ncWMS.
>
> Cheers!
>
>
> On 07/15/2013 08:19 AM, Jon Blower wrote:
>> Hi Marcos,
>>
>> Ah OK, I didn’t realise that TDS still uses epsg-wkt.jar. Out of interest,
>> why do you do this instead of using the EPSG database that ships with
>> Geotoolkit (and hence with standalone ncWMS)?
>>
>> (Just to double-check – which version of ncWMS are you now synchronized
>> with?)
>>
>> Cheers,
>> Jon
>>
>> From: Marcos Hermida [mailto:mhermida@xxxxxxxxxxxxxxxx]
>> Sent: 15 July 2013 15:16
>> To: Jon Blower
>> Cc: thredds@xxxxxxxxxxxxxxxx; guy.griffiths@xxxxxxxxxxxxx
>> Subject: Re: [thredds] Albers or LCC supported as a WMS projection on the
>> TDS?
>>
>> Hi Jay & Jon,
>>
>> TDS still relies on the epsg.properties file in the epsg-wkt.jar and it does
>> not support the ncWMS process for creating your own epsg.properties.
>> I was unable to reproduce the issue, actually, epsg:42303 is already in the
>> epsg.properties shipped with TDS and it works on motherlode:
>> - request with epsg:4326:
>> http://thredds.ucar.edu/thredds/wms/grib/NCEP/DGEX/CONUS_12km/best?LAYERS=Temperature_isobaric&ELEVATION=50000&TIME=2013-07-15T00%3A00%3A00.000Z&TRANSPARENT=true&STYLES=boxfill%2Frainbow&CRS=EPSG%3A4326&COLORSCALERANGE=258.9%2C271.1&NUMCOLORBANDS=20&LOGSCALE=false&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&FORMAT=image%2Fpng&SRS=EPSG%3A43
>> 26&BB
>> OX=-140.14654339665,2.0904137233527,-56.175327906289,67.692925825197&WIDTH=256&HEIGHT=256
>>
>> - request with epsg:42303:
>> http://thredds.ucar.edu/thredds/wms/grib/NCEP/DGEX/CONUS_12km/best?LAYERS=Temperature_isobaric&ELEVATION=50000&TIME=2013-07-15T00%3A00%3A00.000Z&TRANSPARENT=true&STYLES=boxfill%2Frainbow&CRS=EPSG%3A42303&COLORSCALERANGE=258.9%2C271.1&NUMCOLORBANDS=20&LOGSCALE=false&SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&FORMAT=image%2Fpng&BBOX=-5415285.996340551
>> ,-877566.
>> 198157914,2094855.9996948307,5226112.045634475&WIDTH=256&HEIGHT=256
>>
>> So, there is no need to add epsg:42303 to the epsg.properties and I'm not
>> really sure what the problem might be. Jay, make sure you are running a
>> clean new installation of TDS 4.3 and you have the epsg-wkt.jar in your
>> $TOMCAT-HOME/webapps/thredds/WEB-INF/lib directory.
>>
>> Cheers!
>>
>> On 07/14/2013 12:27 PM, Jon Blower wrote:
>> Hi Jay,
>>
>> In "standalone" ncWMS you can now create your own epsg.properties file to
>> add your own projections to those in the Geotoolkit database. I can't
>> remember if this capability has also been migrated to THREDDS - Ethan may be
>> able to advise. Basically, if there is a file called
>> org/geotoolkit/referencing/factory/epsg/epsg.properties on your classpath,
>> ncWMS will pick this up and look for CRS definitions (in WKT) therein.
>>
>> You could try creating such a file if it doesn't exist and adding your
>> projection. Reboot the server, then test with a GetMap operation (it won't
>> show up in GetCapabilities).
>>
>> Cheers,
>> Jon
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Fri, 12 Jul 2013 17:16:41 -0700
>> From: Jay Alder <jay.alder@xxxxxxxxxxxxxxxxxxx>
>> To: Ethan Davis <edavis@xxxxxxxxxxxxxxxx>
>> Cc: thredds@xxxxxxxxxxxxxxxx
>> Subject: Re: [thredds] Albers or LCC supported as a WMS projection on
>> the TDS?
>> Message-ID: <51E09C69.4030005@xxxxxxxxxxxxxxxxxxx>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> Hi Ethan.
>>
>> I'm having a little trouble following along in this old thread. I'm trying
>> to see if it is possible to use a North America variant of Albers in TDS
>> 4.3. It doesn't seem like I can use the many projections listed in
>> epsg.properties like I could in TDS 4.2, unless I'm not building the url
>> correctly. I would like to use 42303, which is listed in epsg.properties,
>> but it doesn't seem to be working for me. If I set the
>> version=1.1.1 the browser says file not found (rather than a TDS xml error).
>> If I set the version to 1.3.0 I get an xml error saying 'The CRS
>> EPSG:42303 is not supported by this server'.
>>
>> Is there a way to get this projection working in TDS? Here is the entry in
>> epsg.properties.
>>
>> 42303=PROJCS["NAD83 / Albers
>> NorthAm",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS_1980",6378137,298.257222101],TOWGS84[0,0,0]],PRIMEM["Greenwich",0],UNIT["Decimal_Degree",0.0174532925199433]],PROJECTION["Albers_conic_equal_area"],PARAMETER["central_meridian",-96.0],PARAMETER["latitude_of_origin",23],PARAMETER["standard_parallel_1",29.5],PARAMETER["standard_parallel_2",45.5],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["Meter",1],AUTHORITY["EPSG","42303"]]
>>
>> Thanks
>>
>> On 10/17/2012 03:13 PM, Ethan Davis wrote:
>> Ack! Sorry about that. I'm always stumbling over the various types of
>> EPSG codes.
>>
>> Yes, the Albers and LLC EPSG codes you gave are for particular types
>> of projections, in EPSG aka "coordinate operations methods". From
>> which can be built particular "coordinate operations" (which I assume
>> have specific parameter values though I'm having trouble finding them
>> in the database). And from there, the coordinate reference systems.
>>
>> My understanding is that the epsg.properties file (in epsg-wkt.jar) is
>> used in TDS 4.2 but not in TDS 4.3 (GeoToolkit 3.04 vs 3.17). The one
>> in TDS 4.3 should be newer and a more complete list of EPSG CRSs. So,
>> once you decide which EPSG CRS codes you want to use, I suspect
>> requests for them will work without changes in TDS 4.3 but may need
>> the additions Marcos mentions below. On the other hand, it appears
>> that the epsg.properties file in TDS 4.2 already contains a WKT for
>> CRS 2205 and I suspect it contains other Albers and LLC based CRSs as well.
>>
>> If that all works, another fun part is figuring out for each CRS the
>> valid values of the bounding box corners.
>>
>> Ethan
>>
>>
>> On 10/17/2012 3:24 PM, Marcos Hermida wrote:
>> Hi Rich,
>>
>> to define either a Lambert Conformal Projection or Albers Equals Area
>> you need to provide a set of parameters (standards parallels, central
>> meridians, northing, easting...) so there are whole family of LCC and
>> Albers projections that you can use. Here you can see some well
>> defined ones, with their EPSG codes:
>> Albers:
>> http://spatialreference.org/ref/epsg/?search=Albers+Equal+Area&srtext
>> =Search
>>
>> LCC:
>> http://spatialreference.org/ref/epsg/?search=Lambert+Conic+Conformal+
>> 2SP&srtext=Search
>>
>>
>> If you want to use some of them all you have to do is add the OGC WKT
>> to the epsg database that is used by ncWMS/THREDDS. That database is
>> the epsg.properties file that lives in the epsg-wkt.jar and those are
>> the actual projections supported by the ncWMS/THREDDS.
>> So, for instance, if you want to add the Lambert Conic Conformal 2SP:
>> NAD83 / Massachusetts Island
>> (http://spatialreference.org/ref/epsg/2250/) you need to add to the
>> epsg.properties this OGC WKT:
>> http://spatialreference.org/ref/epsg/2250/ogcwkt/ with its EPSG code.
>> It would look like something like this:
>>
>> 2250=PROJCS["NAD83 / Massachusetts Island
>> (ftUS)",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GR
>> S
>> 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG
>> ","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degre
>> e",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","42
>> 69"]],UNIT["US
>> survey
>> foot",0.3048006096012192,AUTHORITY["EPSG","9003"]],PROJECTION["Lamber
>> t_Conformal_Conic_2SP"],PARAMETER["standard_parallel_1",41.4833333333
>> 3333],PARAMETER["standard_parallel_2",41.28333333333333],PARAMETER["l
>> atitude_of_origin",41],PARAMETER["central_meridian",-70.5],PARAMETER[
>> "false_easting",1640416.667],PARAMETER["false_northing",0],AUTHORITY[
>> "EPSG","2250"],AXIS["X",EAST],AXIS["Y",NORTH]]
>>
>>
>>
>> Cheers!
>>
>>
>> On 10/17/2012 11:53 AM, Rich Signell wrote:
>> Ethan,
>>
>> That's great that Albers, LCC and others should work with TDS 4.3 WMS.
>>
>> That means it should work on:
>> http://motherlode.ucar.edu:9080/thredds
>> which is at TDS 4.3.15.
>>
>> So on that server, I can get this WMS request to work using EPSG:4326:
>>
>> http://motherlode.ucar.edu:9080/thredds/wms/grib/NCEP/NAM/CONUS_12km
>> /files/NAM_CONUS_12km_20121017_1200.grib2?LAYERS=Temperature_height_
>> above_ground&ELEVATION=2&TIME=2012-10-17T12%3A00%3A00.000Z&TRANSPARE
>> NT=true&STYLES=boxfill%2Frainbow&CRS=EPSG%3A4326&COLORSCALERANGE=263
>> .7%2C302.6&NUMCOLORBANDS=20&LOGSCALE=false&SERVICE=WMS&VERSION=1.1.1
>> &REQUEST=GetMap&FORMAT=image%2Fpng&SRS=EPSG%3A4326&BBOX=-128.1615439
>> 5928,13.676912081443,-76.323087918557,65.515368122164&WIDTH=256&HEIG
>> HT=256
>>
>>
>> But I can't get anything else to work.
>>
>> Can you provide a modified version of the above request that works
>> for Albers (EPSG:9822) or LCC (EPSG:9802)
>>
>> -Rich
>>
>> On Wed, Oct 17, 2012 at 11:55 AM, Ethan Davis
>> <edavis@xxxxxxxxxxxxxxxx> wrote:
>> Hi Rich,
>>
>> Even if a CRS is not listed, both ncWMS and TDS WMS can handle
>> requests for any CRS supported by the underlying GeoToolkit
>> library. The CRS database in TDS 4.2 does not contain EPSG CRS 9822
>> or 9802. However, they should both be available in TDS 4.3. So, if
>> you are trying this on a TDS 4.3, you can just give it a try.
>>
>> As for the WMS GetCapabilities CRS list, it is currently not user
>> configurable. For TDS 4.3 it would simply be a matter of a minor
>> code change (adding the two EPSG numbers to a list) and then
>> rebuilding. It is a bit more work in TDS 4.2, but not much harder,
>> along with adding the EPSG number to a list, we would need a WKT
>> for each of the new projections. (The CRS WKT needs to be in a form
>> the GeoToolkit can
>> read.)
>>
>> We've kept the list to a minimum because in earlier versions we
>> listed all available projections and the list got quite large.
>>
>> Are you using TDS 4.3? Do you need these CRS to be in the list or
>> is being able to request them enough?
>>
>> Cheers,
>>
>> Ethan
>>
>> On 10/17/2012 8:17 AM, Rich Signell wrote:
>> TDS folks,
>>
>> What would it take to get Albers or LCC supported as a projection
>> on the TDS WMS?
>>
>> According to the WMS getCapabilities (for example:
>> http://motherlode.ucar.edu/thredds/wms/fmrc/NCEP/GFS/CONUS_191km/N
>> CEP-GFS-CONUS_191km_best.ncd?service=WMS&version=1.3.0&request=Get
>> Capabilities
>>
>>
>> the supported projections are:
>> <Title>Motherlode TDS</Title>
>> <CRS>EPSG:4326</CRS>
>> <CRS>CRS:84</CRS>
>> <CRS>EPSG:41001</CRS>
>> <CRS>EPSG:3857</CRS>
>> <CRS>EPSG:27700</CRS>
>> <CRS>EPSG:3408</CRS>
>> <CRS>EPSG:3409</CRS>
>> <CRS>EPSG:32661</CRS>
>> <CRS>EPSG:32761</CRS>
>>
>> Okay, so we don't see Albers Equal Area (EPSG:9822) or Lambert
>> Conformal Conic 2SP (EPSG:9802) on the list.
>>
>> But TDS WMS is based on ncWMS, and on the ncWMS FAQ at:
>>
>> http://www.resc.rdg.ac.uk/trac/ncWMS/wiki/FrequentlyAskedQuestions
>>
>> it says that ncWMS "can produce images in any projection that is
>> supported by the GeoTools library".
>>
>> And it appears that GeoTools can support both Albers and LCC:
>>
>> http://docs.geotools.org/latest/javadocs/org/geotools/referencing/
>> operation/projection/package-summary.html
>>
>>
>> So would it be straightforward (or perhaps even easy) to allow the
>> TDS WMS to support these?
>>
>> Thanks,
>> Rich
>>
>> --
>> Ethan Davis UCAR Unidata Program
>> edavis@xxxxxxxxxxxxxxxx http://www.unidata.ucar.edu
>>
>> _______________________________________________
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>> For list information or to unsubscribe, visit:
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>>
>>
>>
>> --
>> Jay Alder
>> US Geological Survey
>> Oregon State University
>> 104 COAS Admin Building
>> Office Burt Hall 166
>> http://ceoas.oregonstate.edu/profile/alder/
>>
>>
>>
>> End of thredds Digest, Vol 54, Issue 4
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>
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Jay Alder
US Geological Survey
Oregon State University
104 COAS Admin Building
Office Burt Hall 166
http://ceoas.oregonstate.edu/profile/alder/
