[OpenLayers-Users] blurry tiles

[Toni Hernandez Valles]

Hello,

Me too. I added the zDirection:-1 to the layer source, and the issue
still persists. :-(




On Mon, 2020-05-04 at 15:48 -0600, Richard Greenwood wrote:
> I'm seeing something similar with Mapbox satellite tiles. I
> added zDirection: -1 to my source definition but it didn't have any
> effect.
> 
> resolution 0.6237836388319881
> 
> resolution 0.5518893502310329
> 
> 
> On Mon, May 4, 2020 at 2:14 PM Andreas Hocevar <
> andreas.hocevar at gmail.com> wrote:
> > By default, OpenLayers applies up- and downscaling to the tiles. To
> > avoid upscaling, configure the source with
> > 
> >     zDirection: -1
> > 
> > Andreas.
> > 
> > On Mon, May 4, 2020 at 8:47 PM Toni Hernandez Valles <
> > toni.hernandez at udg.edu> wrote:
> > > Helo everyone,
> > > 
> > > I am using a vector tile from mapbox and I am getting bluring
> > > tiles
> > > with no apparent reason. Not for me, at least
> > > 
> > > I have checked tiles directly to mapbox and the quality is
> > > perfect,
> > > but, when using tiles with OpenLayers the map quality gets lower.
> > > 
> > > In this link (https://mapscloud.udg.edu/blurry_tiles.png) you can
> > > see
> > > the quality of the map image (on the left) and the quality of a
> > > single
> > > tile. Check the costline and the name "Roses" to see the
> > > difference.
> > > 
> > > 
> > > I have tried both tile sizes (256 and 512) with the same result.
> > > 
> > > This is the code for the layer for size 256.
> > > 
> > > var mapbox =  new TileLayer({
> > >     source: new SourceXYZ({
> > >       url: '
> > > 
https://api.mapbox.com/styles/v1/mapesbasesigte/ck9olcn8017xc1it6mhv6myje/tiles/256/{z}/{x}/{y}?access_token=mytoken'
> > > ,
> > >     })
> > >   })
> > > 
> > > And the code for the map.
> > > 
> > > map = new Map({
> > >   layers: [ mapbox ],
> > >   target: 'map',
> > >   view: new View({
> > >     center: [0, 0],
> > >     zoom: 2,
> > >     projection: 'EPSG:3857',
> > >   }),
> > >   controls: defaultControls({attribution:
> > > false}).extend([attribution]),
> > > });
> > > 
> > > Am I doing something wrong?
> > > 
> > > Thanks you!!!
> > > _______________________________________________
> > > Users mailing list
> > > Users at lists.osgeo.org
> > > https://lists.osgeo.org/mailman/listinfo/openlayers-users
> > 
> > _______________________________________________
> > Users mailing list
> > Users at lists.osgeo.org
> > https://lists.osgeo.org/mailman/listinfo/openlayers-users
> 
>