Re: [QGIS-Developer] Incremental drawing possible?

On 07/12/2017 12:57 AM, Nyall Dawson wrote: > On 12 July 2017 at 06:21, Andreas Neumann wrote: >> Hi Nyall, >> >> I compiled your branch / pull request. Quite impressive! I like it. >> >> Is it planned to land in master, or are there issues with this improvement? > > Well -

Re: [QGIS-Developer] Incremental drawing possible?

Hi, I tested it on Linux with WMTS and Postgis layers. It worked fine for it. I would like to test it on Windows as well, but I can't compile it on Windows if it would be in master, I could test the nightlies. Performancewise it worked fine on Linux. I am not so sure, if it should be

Re: [QGIS-Developer] Incremental drawing possible?

On 12 July 2017 at 06:21, Andreas Neumann wrote: > Hi Nyall, > > I compiled your branch / pull request. Quite impressive! I like it. > > Is it planned to land in master, or are there issues with this improvement? Well - from my use case I consider it ready. But there's some

Re: [QGIS-Developer] Incremental drawing possible?

Nice - I will test that branch. Andreas On 2017-07-11 11:26, Nyall Dawson wrote: > On 11 July 2017 at 19:22, Neumann, Andreas wrote: > >> Hi Martin, >> >> Sounds interesting. Of course this is not urgent. We now need to concentrate >> on all the stuff that requires

Re: [QGIS-Developer] Incremental drawing possible?

On 11 July 2017 at 19:22, Neumann, Andreas wrote: > Hi Martin, > > Sounds interesting. Of course this is not urgent. We now need to concentrate > on all the stuff that requires refactoring and API changes in the master > branch. > > But it would really be nice, if such

Re: [QGIS-Developer] Incremental drawing possible?

Hi Martin, Sounds interesting. Of course this is not urgent. We now need to concentrate on all the stuff that requires refactoring and API changes in the master branch. But it would really be nice, if such rendering improvements could be introduced in a future 3.x version. Maybe something for

Re: [QGIS-Developer] Incremental drawing possible?

Hi Andreas On Tue, Jul 11, 2017 at 9:38 AM, Neumann, Andreas wrote: > Hi Martin, > > I noticed that loading and redraw only happens when the mouse button is > released after the panning operation. While I understand the reasoning for > this (definitely on the safe side and

Re: [QGIS-Developer] Incremental drawing possible?

Hi Martin, I noticed that loading and redraw only happens when the mouse button is released after the panning operation. While I understand the reasoning for this (definitely on the safe side and no unnecessary redraws), I wonder, if for WMTS, loading and display could already happen while

Re: [QGIS-Developer] Incremental drawing possible?

On Tue, Jul 11, 2017 at 5:44 AM, Nyall Dawson wrote: > On 11 July 2017 at 13:17, John Abraham wrote: >> Ok, I overlooked a few features, thanks Nathan for pointing out the refresh >> rate! >> >> I rely on web based tile or WMS backgrounds

Re: [QGIS-Developer] Incremental drawing possible?

>> QGIS seems to need to draw the entire background in it's head, then displays it all at once Yes, this is a problem (it seems) with all of the the Raster rendering. With a GeoTiff during Panning, the Background blanks out and pops back, while the Vectors don't. Hard on the eyes when searching

Re: [QGIS-Developer] Incremental drawing possible?

On 11 July 2017 at 13:17, John Abraham wrote: > Ok, I overlooked a few features, thanks Nathan for pointing out the refresh > rate! > > I rely on web based tile or WMS backgrounds (OpenStreetMap, NRCan Geogratis, > etc.). CityPhi fills in the background as the tiles show up.

Re: [QGIS-Developer] Incremental drawing possible?

Ok, I overlooked a few features, thanks Nathan for pointing out the refresh rate! I rely on web based tile or WMS backgrounds (OpenStreetMap, NRCan Geogratis, etc.). CityPhi fills in the background as the tiles show up. QGIS seems to need to draw the entire background in it's head, then

Re: [QGIS-Developer] Incremental drawing possible?

Hey John, QGIS has had multithreaded rendering since 2.0 which allows the map to be rendered as you pan around so you don't have to wait. You can also set the refresh rate in order to draw more features so you get feedback quicker. Regards, Nathan On Tue, Jul 11, 2017 at 2:32 AM, John Abraham

[QGIS-Developer] Incremental drawing possible?

Is incremental drawing possible, especially for web features in the background? I've been playing with some GPU based visualizers lately (in particular CityPhi from INRO https://www.inrosoftware.com/en/products/cityphi/ ) and switching back to