[MapProxy] Tile Source used as an overlay obscures underlying sources

[Adam Ratcliffe]

Hi Oliver,

Here's a live URL demonstrating the problem: http://mt0.geosmart.co.nz/mapproxy/service?service=WMS&request=GetMap&version=1.1.1&layers=geosmart:traffic_nz_test&styles=&format=image/png&transparent=true&height=256&width=256&cql_filter=status='current'%20AND%20(priority='0'%20OR%20priority='1'%20OR%20priority='2'%20OR%20priority='3'%20OR%20priority='7')&srs=EPSG:3857&bbox=19455363.93536934,-4422340.708467157,19460255.905179594,-4417448.7386569055

The requested layer merges the following sources (from bottom to top):

- Traffic flow depicted as coloured lines
- Road labels
- Traffic incident icons

The first time the image is requested the source layers are merged correctly, on subsequent requests when the road labels are retrieved from the cache they obscure the traffic flow beneath.

Regards

Adam Ratcliffe
Software Developer
GeoSmart
PO Box 101001
29 Apollo Drive, Mairangi Bay, Auckland, NZ
Ph: +64 9 966 8757
Fx: +64 9 966 8721
Email:  adam.ratcliffe at geosmart.co.nz<mailto:Phil.Allen at geosmart.co.nz>
Web:   www.GeoSmart.co.nz<http://www.geosmart.co.nz/>




On 20/02/2013, at 9:11 PM, Oliver Tonnhofer <olt at omniscale.de<mailto:olt at omniscale.de>>
 wrote:

Hi Adam,

On 15.02.2013, at 02:31, Adam Ratcliffe wrote:
A sample request from a Leaflet client looks like this: http://mapproxy.geosmart.co.nz/service?SERVICE=WMS&REQUEST=GetMap&VERSION=1.1.1&LAYERS=geosmart:traffic_incidents_nz&format=image/png&TRANSPARENT=true&HEIGHT=256&WIDTH=256&CQL_FILTER=status='current'%20AND%20(priority='0'%20OR%20priority='1'%20OR%20priority='2'%20OR%20priority='3'%20OR%20priority='7')

Do you have a working example request (with BBOX/SRS) to reproduce this?

Regards,
Oliver

--
Oliver Tonnhofer    | Omniscale GmbH & Co KG    | http://omniscale.com
http://mapproxy.org | https://github.com/olt    | @oltonn








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