Re: [Qgis-developer] Symbol levels
On Wed, Apr 16, 2014 at 1:49 PM, Hugo Mercier wrote: >> On Tue, Apr 15, 2014 at 3:07 PM, Hugo Mercier >> wrote: >>> >>> The UI asks for numeric levels, but, if I am correct, only relative >>> orders between two symbol layers are important. >>> Was there something else originally planned ? Something like a global >>> level to be able to order symbol layers of different vector layers ? >> >> No, it was meant just for levels within one layer. > > Ok, so ... why the UI asks the user for integers ? And what is the > meaning of two layers with the same number ? Integers are there for convenience... with more complex scenarios (e.g. roads with highway crossings) it may be handy to have numbers instead of just a pure list, and to possibly have "holes" between the levels. > What about a UI with the list of symbol layers and some up/down buttons ? That would be possible, but maybe harder to use. In the table view, you can see symbols and their levels at once. In a simple list with up/down buttons you need to split the symbols into symbol layers and it is more difficult to identify what are the levels for one symbol (IMHO). >>> Another point : apart from performance issue, I cannot see any reason >>> why *not* to enable symbol levels. Are there situations were users do >>> want different symbol layers to overlap ? >> >> I think there are such situations, from the top of my head: >> - with symbol levels you cannot see the rendering progress (everything >> is rendered at the end) - this makes quite a difference with big >> layers > > If I am correct, you can still see the progress. You will see the first > symbol layer, then the second one, etc. Yes, but only once all features have been fetched from the provider - and that interval usually dominates the rendering time. So, with a layer that takes 5 seconds to render, there will be maybe 4 seconds when you see nothing from the layer. Regards Martin ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Symbol levels
Hi Martin, Le 16/04/2014 11:34, Martin Dobias a écrit : > Hi Hugo > > On Tue, Apr 15, 2014 at 3:07 PM, Hugo Mercier > wrote: >> >> The UI asks for numeric levels, but, if I am correct, only relative >> orders between two symbol layers are important. >> Was there something else originally planned ? Something like a global >> level to be able to order symbol layers of different vector layers ? > > No, it was meant just for levels within one layer. Ok, so ... why the UI asks the user for integers ? And what is the meaning of two layers with the same number ? What about a UI with the list of symbol layers and some up/down buttons ? > > >> Another point : apart from performance issue, I cannot see any reason >> why *not* to enable symbol levels. Are there situations were users do >> want different symbol layers to overlap ? > > I think there are such situations, from the top of my head: > - with symbol levels you cannot see the rendering progress (everything > is rendered at the end) - this makes quite a difference with big > layers If I am correct, you can still see the progress. You will see the first symbol layer, then the second one, etc. > - you don't always want the symbol layers to be blended (different appearance) Now that Nyall gives an example of such rendering, that is clear. > - not all renderers need to support symbol levels > > I don't think we should go with symbol levels always on. > > Regards > Martin > > -- Hugo Mercier Oslandia ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Symbol levels
Le 16/04/2014 13:42, Nyall Dawson a écrit : >> On Tue, Apr 15, 2014 at 3:07 PM, Hugo Mercier >> wrote: >> >>> Another point : apart from performance issue, I cannot see any reason >>> why *not* to enable symbol levels. Are there situations were users do >>> want different symbol layers to overlap ? >> > > Here's a quick sample symbology which relies on NOT using symbol layers: > http://imgur.com/HIL0KJs > Hi Nyall, Thanks for your example. It makes sense. -- Hugo Mercier Oslandia ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Symbol levels
> On Tue, Apr 15, 2014 at 3:07 PM, Hugo Mercier > wrote: > >> Another point : apart from performance issue, I cannot see any reason >> why *not* to enable symbol levels. Are there situations were users do >> want different symbol layers to overlap ? > Here's a quick sample symbology which relies on NOT using symbol layers: http://imgur.com/HIL0KJs Nyall ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
[Qgis-developer] different projects, same layers IDs
Hi all, sometimes it is necessary to create and publish with qgis server multiple projects, that are made from the same template containing a bunch of layers that are the same in all projects. IDs for this layers are the same, then on qgis server issues happens http://hub.qgis.org/issues/7956 http://hub.qgis.org/issues/10068 as suggested here http://hub.qgis.org/issues/7956#note-5 it seems that adding the project name to the actual layers id seems a good and easy solution. I was remembering that there was a patch/pull request about it, but can't find it. cheers! -- Giovanni Manghi Faunalia.pt Sistemas de Informação Geográfica Open Source Portugal Web: http://www.faunalia.pt Email & Jabber: giovanni.man...@faunalia.pt PGP Key available Tel. + 351 96 7058216 -- ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
[Qgis-developer] New plugin RasMover
Hello All, I created a new plugin that move all active raster, using a new temporary raster. http://plugins.qgis.org/plugins/rasmover/ This plugin is very useful to fine collimate Raster with vector layers. Please, test it and approvate it if you like. Thank you Roberto ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Symbol levels
Hi Hugo On Tue, Apr 15, 2014 at 3:07 PM, Hugo Mercier wrote: > > The UI asks for numeric levels, but, if I am correct, only relative > orders between two symbol layers are important. > Was there something else originally planned ? Something like a global > level to be able to order symbol layers of different vector layers ? No, it was meant just for levels within one layer. > Another point : apart from performance issue, I cannot see any reason > why *not* to enable symbol levels. Are there situations were users do > want different symbol layers to overlap ? I think there are such situations, from the top of my head: - with symbol levels you cannot see the rendering progress (everything is rendered at the end) - this makes quite a difference with big layers - you don't always want the symbol layers to be blended (different appearance) - not all renderers need to support symbol levels I don't think we should go with symbol levels always on. Regards Martin ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
[Qgis-developer] Fwd: #8884 Symbol too small in legend when map units are used
Forwarding to qgis-developer mailing list (he wrote to me :-) ) -- Forwarded message -- From: Andreas Neumann Date: Tue, Apr 15, 2014 at 3:14 PM Subject: Re: [Qgis-developer] #8884 Symbol too small in legend when map units are used To: Luca Manganelli Hi, Confirmed. We would need a way to override the symbol map unit size with a size mm - solely for the display of the legend. Andreas Am 2014-04-15 15:09, schrieb Luca Manganelli: > Hi, anyone having issues with this bug? > > Simple test case: pick a vectorial point layer with the default style, > see the TOC legend; > > open the style properties, go to Style and switch the units to "Map > units". As you can see, the symbol is very small. The situation is > worse if you use a SVG symbol, it's impossible to distinguish which is > on the map and which is on the legend. > > https://hub.qgis.org/issues/8884 [1] > > > Links: > -- > [1] https://hub.qgis.org/issues/8884 > > ___ > Qgis-developer mailing list > Qgis-developer@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/qgis-developer > -- It means your future hasn't been written yet. No one's has. Your future is whatever you make it. So make it a good one, both of you. -- Doc Brawn, Back to the Future III (1990) ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer