[Gvsig_english] gvSIG Mobile workspace - getting "WMS image error" after trying to load files from WMS

Thu Oct 7 09:58:30 CEST 2010

Hello, I have downloaded the source code from here:

http://forge.osor.eu/frs/download.php/1041/gvSIG_Mobile_Pilot-0.3-src.zip

and recorded this video:

http://www.youtube.com/watch?v=WPHpByPnqzU

That does not work for you?

That WMS server is not always available, though:

http://www.prodevelop.es/files/fm/public/screenshots/gvsig_mobile/server_error.jpg

Can you send any sample NMEA file to the list so we can check it ourselves?

Regards,

Juan Lucas Domínguez Rubio
---
Prodevelop SL, Valencia (España)
Tlf.: 96.351.06.12 -- Fax: 96.351.09.68
http://www.prodevelop.es <http://www.prodevelop.es/> 
---

________________________________

De: gvsig_internacional-bounces at listserv.gva.es en nombre de Schoolmeesters
Enviado el: jue 07/10/2010 2:18
Para: Users and Developers mailing list
Asunto: Re: [Gvsig_english] gvSIG Mobile workspace - getting "WMS image error" after trying to load files from WMS

Hello again,

thank you for testing the WMS. I've tested it again (the NRW one) and did not get any picture loaded (no matter which EPSG I choose). On the other hand, the OSM one works fine. So I just have to find an adequate wms, I think. That is ok.

But concerning the gps arrow I've tested again (no map background)

1.) connecting to a GPS device at COM port, showing position @ 8.42171° / 49.00797° ------> arrow is not displayed

2.) connecting to a logged nmea file (logged by gvsig mobile, same position) -----> arrow is not displayed, either

3.) connecting to an old nmea file (logged by another application, approx. same position)  ----> arrow is displayed and even centered to correct position (checked with map data)

I'll check whether it will work with another GPS receiver. I don't understand, what should be different. It is always nmea code! 

However, the position is always displayed correctly. Shouldn't the arrow get the position from the same source as the displayed position (button: display coordinates)

Regards,

Marcel Schoolmeesters

Am 04.10.2010 12:45, schrieb Juan Lucas Dominguez Rubio: 

	Hello, Marcel.

	All the URLs in this message can be tested directly in a web browser. In one of my tests using a web browser, this URL returned a very ugly Java stack trace:

	http://www.gis.nrw.de/wms/DGM50?REQUEST=GetCapabilities&SERVICE=WMS&EXCEPTIONS=XML

	But in other attempts, the response was OK (a XML file with the server capabilities)

	This request works too (using the German EPSG;31429):

	http://www.gis.nrw.de/wms/DGM50?REQUEST=GetMap&SERVICE=WMS&VERSION=1.1.0&LAYERS=DGM50&SRS=EPSG:31492&BBOX=2495820.074603175,5597231.470778579,2715995.7222222225,5803033.633983327&WIDTH=338&HEIGHT=317&FORMAT=image/jpeg&STYLES=&TRANSPARENT=TRUE

	This request returns a blank image, which I think is caused by a bug in the WMS server:

	http://www.gis.nrw.de/wms/DGM50?REQUEST=GetMap&SERVICE=WMS&VERSION=1.1.0&LAYERS=DGM50&SRS=EPSG:4326&BBOX=6,50.5,8.5,53&WIDTH=300&HEIGHT=300&FORMAT=image/png&STYLES=&TRANSPARENT=TRUE

	The coordinates of the requested box are BBOX=6,50.5,8.5,53 which I think are correct and that should return an overview of that German state. Here is an example using the same coordinates with a different WMS server:

	http://osmwms.itc-halle.de/maps/osmfree?SERVICE=WMS&&REQUEST=GetMap&SERVICE=WMS&VERSION=1.1.1&LAYERS=grenzen&SRS=EPSG:4326&BBOX=6,50.5,8.5,53&WIDTH=752&HEIGHT=499&FORMAT=image/jpeg&STYLES=default&TRANSPARENT=TRUE

	So I think that WMS server says that it can provide maps in EPSG:4326, but it cannot, so you'll have to use EPSG;31429. Unfortunately, gvSIG Mobile 0.3 is unaware of that projection, so the GPS arrow will not be placed correctly. Distance and area measurements will work correctly as long as you choose a projection whose map unit is the meter (for example the Italian EPSG:3003)

	I have tested that WMS server from the gvSIG Mobile 0.3 workspace in Eclipse and it worked fine choosing EPSG:31429. Have you tried that option? 

	As for the log file, yes you are right, that problem should be more visible in the log file, that's our fault.

	Go to Launcher.java and replace this line:

	Logger.getRootLogger().setLevel(Level.WARN);

	with:

	Logger.getRootLogger().setLevel(Level.ALL);

	Perhaps that'll show more messages.

	Regards,
	Juan Lucas Domínguez Rubio
	---
	Prodevelop SL, Valencia (España)
	Tlf.: 96.351.06.12 -- Fax: 96.351.09.68
	http://www.prodevelop.es <http://www.prodevelop.es/> 
	---

________________________________

	De: gvsig_internacional-bounces at listserv.gva.es en nombre de Schoolmeesters
	Enviado el: jue 30/09/2010 14:21
	Para: Users and Developers mailing list
	Asunto: [Gvsig_english] gvSIG Mobile workspace - getting "WMS image error" after trying to load files from WMS

	  Dear list,

	anybody out there who has tried to load a WMS with the source code
	running in Eclipse?

	I've tested the downloadable WinXP version -> no problems apart from the
	language which seems to be spanish only. However, that doesn't matter,
	but I don't understand why my self-compiled version does not load any
	WMS image. Is it possible that the SVN version is not the current
	version? Or did I forget to include something?

	Best regards,

	Marcel Schoolmeesters
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