[Geomoose-users] Different projections, Make a new one
Fischer, Brian
bfischer at houstonengineeringinc.com
Wed Oct 31 11:25:56 EDT 2007
A guy from the City of St. Paul started to write a "how to" document on
adding addition projections. Can you take a look at
http://www.geomoose.org/moose/documentation/how-tos/how-to-add-your-own-
projection/ and see if it makes sense to you. Also if you get us the
equation to convert an xy point in SRID2163 to lat/lon, I think we can
get it added fairly easily.
We are happy to help out however we can. We also want to make sure we
have good documentation on this subject as I am sure it will come up for
others.
Brian Fischer
Houston Engineering, Inc.
Maple Grove, MN
(763) 493-4522
-----Original Message-----
From: Gary Watry [mailto:watry at steam.coaps.fsu.edu]
Sent: Friday, October 26, 2007 1:29 PM
To: Fischer, Brian
Subject: Re: [Geomoose-users] Different projections, Make a new one
My dev site is up as far as I got today
http://gis.coaps.fsu.edu/GeoMoose/webdocs/testsite.html
do you think you will be able to add support for SRID2163?
I have figured out
1. Identify tools
2. Changing Projections
3. Adding vector Layers
next steps
1. Query Tool
2. Adding Raster layers
3. Adding WMS Layers
last phase
1. migrate to Linux
Fischer, Brian wrote:
> I'll get back to you on this topic. We might be able to add in the
> support for at least that projection for now.
>
>
> Brian Fischer
> Houston Engineering, Inc.
> Maple Grove, MN
> (763) 493-4522
>
> -----Original Message-----
> From: watry at steam.coaps.fsu.edu [mailto:watry at steam.coaps.fsu.edu]
> Sent: Wednesday, October 17, 2007 9:33 PM
> To: Fischer, Brian
> Subject: RE: [Geomoose-users] Different projections, Make a new one
>
> First, let me say GeoMoose is great and we are bmoving all of our
> Mapservers sites (about 10 and eventually over 20) to GeoMoose as the
> core program
>
> I believe I know how the projection works now.
>
> right now, I guess I could display all fo the U.S. in UTM-15 but the
> GIS part of me is screaming "idoit"!!)
>
> so I copy UTM.js to "SRID2163.js, then modifiy the javascript library
> to
>
>> that does the math to transform the coordinates from SRID 2163
>>
> tolat/lon. Do You kow where I can get this information
>
> Do you know when you will add the Proj.4 JS
>
> If I use a geographic lat/lon as my non-projection, would it display
> Lat/Lon as map units on the bottom but then the measure tools would
> not be right so back to building SRID2163.js.
>
> We are alos going to migrate to Linux, When we get it to work , will
> send you a copy if you want.
>
>
> Quoting "Fischer, Brian" <bfischer at houstonengineeringinc.com>:
>
>
>> Gary,
>>
>> I want to make sure you understand how GeoMOOSE is working with
>> projections. The code itself really doesn't care what projection the
>> data is in. We rely on the data source to handle reprojections if
>> needed. For example if your data source is a MapServer service you
>>
> would
>
>> define the projection in the mapfile. If your data source is WMS,
>> the WMS would have to support the projection you want to request. We
>>
> don't
>
>> want to transform the images on the client site because of
>> performance issues.
>>
>> As far as the UTM.js, all that is doing is reprojecting the mouseover
>> coordinates to lat/long for the coordinate display on the bottom of
>>
> the
>
>> interface in the footer. Currently GeoMOOSE only supports
>>
> transforming
>
>> the coordinates for the interface display from UTM to lat/long or MN
>> County Coordinates to Lat/Lon.
>>
>> If you want GeoMOOSE to display the mouseover coordinates in the
>> mapunits of the data layers, then all you need to do is have these
>> variables in your configuration.js file set "var
>>
> MAP_COORDINATE_DISPLAY
>
>> = true;" and "var MAP_COORDINATE_SYSTEM = ''";". This will keep
>> GeoMOOSE from trying to display a lat/lon. We maybe could use a
>>
> little
>
>> work on naming these variables to something more logical, but it's a
>> start :-).
>>
>> If you want GeoMOOSE to project the mouseover coordinates to lat/lon
>>
> for
>
>> the interface display then you would need to add a javascript library
>> that does the math to transform the coordinates from SRID 2163 to
>> lat/lon. Ideally in the future we would add the Proj.4 JS port that
>>
> is
>
>> going on as part of the mapbuilder project, so almost any projection
>> would be support for the mouseover coordinate display.
>>
>> If this doesn't make sense or you need more clarification, please
>> respond back and we'll try to help out.
>>
>> -Brian
>>
>> -----Original Message-----
>> From: geomoose-users-bounces at lists.sourceforge.net
>> [mailto:geomoose-users-bounces at lists.sourceforge.net] On Behalf Of
>>
> Gary
>
>> Watry
>> Sent: Wednesday, October 17, 2007 2:13 PM
>> To: Jim Klassen
>> Cc: geomoose-users at lists.sourceforge.net
>> Subject: [Geomoose-users] Different projections, Make a new one
>>
>> I can now load layers and reproject on the fly to UTM-15
>>
>> I need a project that works for the whole country, how do I make a
>> new Projection file
>>
>> PostGIS SRID: 2163
>>
>> +proj=laea +lat_0=45 +lon_0=-100 +x_0=0 +y_0=0 +a=6370997 +b=6370997
>> +units=m +no_defs
>>
>>
>> Can I take the UTM-15 Files (UTM.js) and modify it. or is there an
>> easier way
>>
>>
>> Jim Klassen wrote:
>>
>>> As far as GeoMOOSE is concerned, everything needs to be in the same
>>> projection. However, if you are using Mapserver as the image source
>>>
> it
>
>>> can be configured to reproject datasets on the fly to which ever
>>> projection you pick for GeoMOOSE to work with.
>>>
>>>
>>>
>>>>>> On 10/17/2007 at 8:03 AM, Gary Watry <watry at steam.coaps.fsu.edu>
>>>>>>
>>> wrote:
>>> where is the projection set
>>> how do I do layers that have different projections in the same site
>>>
>>>
>>>
>>>
>>>
>>>
> ----------------------------------------------------------------------
> --
>
>> -
>>
>>> This SF.net email is sponsored by: Splunk Inc.
>>> Still grepping through log files to find problems? Stop.
>>> Now Search log events and configuration files using AJAX and a
>>>
>> browser.
>>
>>> Download your FREE copy of Splunk now >> http://get.splunk.com/
>>> _______________________________________________
>>> Geomoose-users mailing list
>>> Geomoose-users at lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/geomoose-users
>>>
>>
>>
>>
>>
> ----------------------------------------------------------------------
> --
>
>> -
>> This SF.net email is sponsored by: Splunk Inc.
>> Still grepping through log files to find problems? Stop.
>> Now Search log events and configuration files using AJAX and a
>>
> browser.
>
>> Download your FREE copy of Splunk now >> http://get.splunk.com/
>> _______________________________________________
>> Geomoose-users mailing list
>> Geomoose-users at lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/geomoose-users
>>
>>
>>
>
>
>
> ----------------------------------------------------------------
>
>
>
>
More information about the Geomoose-users
mailing list