Re: [Qgis-user] Switch on only 1 layer of a group

2014-11-14 Thread aperi2007
Hi Salvatore, thx for hint. It is a very interesting feature. I dont know it. But unfortunately it dont seem to be what I need. My need is showing the the user all the layer of a group. they are all wms layer of kind OFC ortophoto, and each of them cover all the land. So If perfectly

Re: [Qgis-user] Switch on only 1 layer of a group

2014-11-14 Thread Salvatore Larosa
Hi, On Fri, Nov 14, 2014 at 9:10 AM, aperi2007 aperi2...@gmail.com wrote: Hi Salvatore, thx for hint. It is a very interesting feature. I dont know it. But unfortunately it dont seem to be what I need. ok, my immagination was wrong :) My need is showing the the user all the layer of a

Re: [Qgis-user] Stacking Landsat Bands

2014-11-14 Thread Jonathan Moules
Thanks for the replies. Lots of options, useful to know. @Andreas - My issue was that my bands were separate images, I don't believe I can visualise them in a RGB-ish manner without first stacking into a single image. Cheers, Jonathan -Original Message- From:

[Qgis-user] The WMS Legend lost the scale in getlegendgraphics.

2014-11-14 Thread Andrea Peri
Hi, I notice the WMS legend in the tree don't use the SCALE parameter. so when calling a wms appeare all the styles for every scale interval. :( I'm using the qgis 2.6. Perhaps there is a special property to activate the scale parameter ? Thx, -- - Andrea Peri . . . . . . . . .

[Qgis-user] Area calculation tools

2014-11-14 Thread Stephane Goldstein
Hello. I've noticed that there are in the feature area calculated by Vector Geometry Tools Export/Add Geometry Columns vs. using $area in the field calculator. For the same polygon I got 151 482 883.964722 m2 for the first one and 152 548 334.467394 m2 for the second. This is a 106ha difference

Re: [Qgis-user] Switch on only 1 layer of a group

2014-11-14 Thread Salvatore Larosa
Hi Andrea, On Fri, Nov 14, 2014 at 9:42 AM, Salvatore Larosa lrssv...@gmail.com wrote: No idea on how to do such an action from python but I think that should be handy to do from C++ to have it available in group context menu, something like a checkbox Alternate layers. maybe could you open a

Re: [Qgis-user] Switch on only 1 layer of a group

2014-11-14 Thread Andrea Peri
Many thx Salvatore, I try it. 2014-11-14 20:10 GMT+01:00 Salvatore Larosa lrssv...@gmail.com: Hi Andrea, On Fri, Nov 14, 2014 at 9:42 AM, Salvatore Larosa lrssv...@gmail.com wrote: No idea on how to do such an action from python but I think that should be handy to do from C++ to have it

Re: [Qgis-user] Area calculation tools

2014-11-14 Thread ralfwessels
Hi Stephane, if you calculate areas (or length) with the Add geometry Columns-Tool, the results depend on the settings you can make under Calculate using. Here you have the options Layer CRS, Project CRS or Ellipsoid. Ellipsoid is calculating with the curvature of the earth (so far I know) and the