Re: [Qgis-developer] Suppress rendering of small features

2013-09-12 Thread Andreas Neumann
Hi, As I understand, the feature to suppress small/large features would be optional. Another interesting thing would be to simplify features when you zoom out. Maybe simplifying would be quicker than rendering thousands of unnecessary vertices. Optionally this could also be outsourced to the

Re: [Qgis-developer] Suppress rendering of small features

2013-09-12 Thread Luca Manganelli
On Thu, Sep 12, 2013 at 8:51 AM, Andreas Neumann a.neum...@carto.netwrote: [...] I don't know if it would really speed up things. One would have to test. Programmers waste enormous amounts of time thinking about, or worrying about, the speed of noncritical parts of their programs, and these

Re: [Qgis-developer] Suppress rendering of small features

2013-09-12 Thread Matthias Kuhn
Hi, How would you define small? I guess something can already be done with scale based visibility, but that needs preprocessing of the data and assigning some kind of size class. On Don 12 Sep 2013 08:51:43 CEST, Andreas Neumann wrote: Hi, Another interesting thing would be to simplify

Re: [Qgis-developer] Sessions in Brighton

2013-09-12 Thread Gino Pirelli
Hi, I whould add a session to present two new features that I developed 1) WMS tile repeat request: Sometimes tile request fails and leave an hole in composer or canvas... in this way they are scheduled again to a maximum maximum number of fails. Code can be found in the my qgis fork. Sorry I

Re: [Qgis-developer] Suppress rendering of small features

2013-09-12 Thread Mathieu Pellerin
Could this be done using a rule-based expression through the creation of a variable that returns the pixel-size area of a polygon / pixel-size length of a line? On Thu, Sep 12, 2013 at 3:28 PM, Matthias Kuhn matthias.k...@gmx.ch wrote: Hi, How would you define small? I guess something can

Re: [Qgis-developer] Suppress rendering of small features

2013-09-12 Thread Andreas Neumann
Hi Matthias, Thank you for your preliminary results. I think they are encouraging to further look into this issue. Andreas Am 12.09.2013 10:28, schrieb Matthias Kuhn: Hi, How would you define small? I guess something can already be done with scale based visibility, but that needs

Re: [Qgis-developer] Sessions in Brighton

2013-09-12 Thread Alessandro Pasotti
Hi Mathias, please also add a short session about python plugin repository website and plugins installer, I've already put it in the wiki. We have some small problems about versioning to discuss and solve. Thanks! 2013/9/12 Matthias Kuhn matthias.k...@gmx.ch Hi Luigi, Would you like to

Re: [Qgis-developer] Sessions in Brighton

2013-09-12 Thread Matthias Kuhn
Hi Two sessions added to Saturday: * WMS (Tiles and Legend) * Plugins (Website/Installer) If you find any inconvenient overlaps, feel free to reschedule these. Matthias ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org

Re: [Qgis-developer] Suppress rendering of small features

2013-09-12 Thread Nyall Dawson
This is possible using the Rule-Rendering also is possible to use the rule-rendering to define a rule that in a scale interval and with a dimension interval the feature is render using a point rendering and change in a polygon rendering when the scale grow. While it is possible to set up

Re: [Qgis-developer] Sessions in Brighton

2013-09-12 Thread Gino Pirelli
+1 On 12 September 2013 12:02, Matthias Kuhn matthias.k...@gmx.ch wrote: Hi Two sessions added to Saturday: * WMS (Tiles and Legend) * Plugins (Website/Installer) If you find any inconvenient overlaps, feel free to reschedule these. Matthias

[Qgis-developer] Vienna CodeSprint 2014 - OSGeo C-tribe

2013-09-12 Thread Vincent Picavet
Hi all, I know you are heading to Brighton for the codesprint, but it's not a reason not to think about future gathering of C/C++ OSGeo developers :-) The annual C-tribe OSGeo codesprint will take place in Europe in 2014 ! I think it is the first time it is held outside of the American

Re: [Qgis-developer] Suppress rendering of small features

2013-09-12 Thread Alexander Bruy
Hi, I raised similar question about year ago, but instead hiding small features I propose to do simplification. I also implemented some test code and results were pretty good — redraw is quicker in several times. But my code still hacky and not optimal. Also there were GSoC project, but it was

Re: [Qgis-developer] Suppress rendering of small features

2013-09-12 Thread Sandro Santilli
On Thu, Sep 12, 2013 at 08:51:43AM +0200, Andreas Neumann wrote: Hi, As I understand, the feature to suppress small/large features would be optional. Another interesting thing would be to simplify features when you zoom out. Maybe simplifying would be quicker than rendering thousands of

Re: [Qgis-developer] Suppress rendering of small features

2013-09-12 Thread Vincent Mora
Hi, I did something somewhat similar to solve #4819 in Jully (Identify Features tool is slow with complex/big features) and Matthias asked me to do the same thing for the rubber-band. In polygon contours, points that are less than a pixel apart from the previous point are not drawn. That

[Qgis-developer] Better world projections

2013-09-12 Thread Andreas Neumann
Hi, I noticed that basically all well-known small-scale projections for world views are missing in QGIS, e.g. Robinson, Mollweide, Wagner, Winkel, Eckert, etc Can we add these for QGIS 2.1 or 2.0x? For most of them the proj4 parameters are available. It is just a matter of adding them. We

Re: [Qgis-developer] Better world projections

2013-09-12 Thread Larry Shaffer
Hi Andreas, On Thu, Sep 12, 2013 at 6:00 AM, Andreas Neumann a.neum...@carto.netwrote: Hi, I noticed that basically all well-known small-scale projections for world views are missing in QGIS, e.g. Robinson, Mollweide, Wagner, Winkel, Eckert, etc Can we add these for QGIS 2.1 or 2.0x?