[Gvsig_english] Map Scale

[Juan Lucas Dominguez Rubio]

Hello, Kevin:
 
I've been trying to make sense of the scale values provided by gvSIG when using feet as the map unit, and have also experienced a strange behavior. The scale seems to work fine in the view, but when creating a map (layout) with it, it does not make sense for me either.
 
In case somebody wants to test it, here is a WMS service that uses feet as the map unit:
 
http://gis1.oit.ohio.gov/wmsconnector/com.esri.wms.Esrimap/osip?
 
The true length of the building seen in this image is about 110 meters:
 
http://gis1.oit.ohio.gov/wmsconnector/com.esri.wms.Esrimap/osip?REQUEST=GetMap&SERVICE=WMS&VERSION=1.1.1&LAYERS=50&SRS=EPSG:102723&BBOX=2481555.9699062333,1124765.0365067134,2482132.8341791052,1125240.8262702362&WIDTH=469&HEIGHT=387&FORMAT=image/jpeg&STYLES=&TRANSPARENT=TRUE
 
but when creating a map (for example using A4 page size) the scale does not show a sensible value.
 
As for the SRS, the server calls it EPSG:102723 but it's actually ESRI:102723.
 
 
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 Kevin Ryan
Enviado el: mié 03/11/2010 23:50
Para: gvsig_internacional at listserv.gva.es
Asunto: [Gvsig_english] Map Scale


Hello,

I have just started using gvsig and have run into an issue with the
map function (may be my error or some type of bug), but am looking for some
assistance.


Summary: The scale in the map function does match the actual scale.
using version 1.10


I insert view. At the properties dialog the scale (1: 4000) appears to be
incorrect for the view. Setting the scale to the a known view scale from the
prior view menu results in a very different view. The measurement of the
known feature indicates 400 feet as compared to 50 feet using an inserted
scale bar.

I have altered the projection to see if it makes a differance.


It appears that I may be missing some very simple setting that I have not
found, or maybe some type of bug? The rest of the program functions great.

Thanks,

Kevin
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://listserv.gva.es/pipermail/gvsig_internacional/attachments/20101106/6df3f603/attachment.htm