Re: [Qgis-developer] Re: Approximate reprojection for vectors
On Sun, Oct 2, 2011 at 3:20 PM, aperi2007 wrote: > The mix in the same maps of > data reprojected with lost precision > and data not reprojected > will produce wrongly maps. The approximate reprojection is only used if the approximation can be calculated with a error under certain threshold, for example for rendering on screen, with an error less than screen pixel size. Radim > Regards, > > Andrea. > ___ > Qgis-developer mailing list > Qgis-developer@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/qgis-developer > ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
[Qgis-developer] Re: Approximate reprojection for vectors
>Hi, >as you probably know, raster reprojection is using approximate >reprojection to get acceptable rendering speed. Now I am thinking >about a possibility to implement the same also for vectors, to speed >up vectors rendering. What do you think about that? Does it make >sense? > >Radim This is a very serious question. I will give my 2ct. >What do you think about that? Does it make >sense? I guess absolutely no. The mix in the same maps of data reprojected with lost precision and data not reprojected will produce wrongly maps. Regards, Andrea. ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
