Hello, I build a map with Geoserver/Openlayers. I use the tiled layers wich metatile = 14 and gutter = 100.
If my map is requested from a device with retina display (ipad air, macbook...), the metatiling option seems to be ignored: on every tile is rendered a label. The result is, that all labels are repeated several time.
The problem is, that openlayers request tiles with dimension 512x512 instead of 256x256, while in the gridSet the dimensions are 256x256. Openlayers simply double the sizes if on retina display. I could force openlayers to use always 256x256, but the tile would be probably blurred.
I tried to configure another gridset with same resolutions and dimensions 512x512 and I added this gridset to my layer, so that the layer have now 2 gridsets with same resolutions and different tiles sizes. Unfortunately does not not work.
The question is: can I say openlayers to use another gridset if on retina display?
There is maybe another solution?
Regards Tommaso
As well as adding a gridset for 512x512 images you also need to add a DPI parmamter on the gridset, thid is what I use:
<parameterFilters>
<stringParameterFilter>
<key>FORMAT_OPTIONS</key>
<defaultValue>dpi:90</defaultValue>
<normalize>
<locale></locale>
</normalize>
<values>
<string>dpi:90</string>
<string>dpi:180</string>
</values>
</stringParameterFilter>
</parameterFilters>
Note, I also found I had to use EPSG:3857 instead of 900913, gwc seems to get confused sometimes and claim there was no gridset defined when the request uses 3857 for anything but the build in on.
-----Original Message-----
From: tommaso [mailto:tommasodb@anonymised.com]
Sent: 18 April 2016 11:56
To: geoserver-users@lists.sourceforge.net
Subject: [Geoserver-users] Geoserver / Geowebcache on retina display
Hello, I build a map with Geoserver/Openlayers. I use the tiled layers wich metatile = 14 and gutter = 100.
If my map is requested from a device with retina display (ipad air, macbook...), the metatiling option seems to be ignored: on every tile is rendered a label. The result is, that all labels are repeated several time.
The problem is, that openlayers request tiles with dimension 512x512 instead of 256x256, while in the gridSet the dimensions are 256x256.
Openlayers simply double the sizes if on retina display. I could force openlayers to use always 256x256, but the tile would be probably blurred.
I tried to configure another gridset with same resolutions and dimensions
512x512 and I added this gridset to my layer, so that the layer have now 2 gridsets with same resolutions and different tiles sizes. Unfortunately does not not work.
The question is: can I say openlayers to use another gridset if on retina display?
There is maybe another solution?
Regards Tommaso
------------------------------------------------------------------------------
Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial!
https://ad.doubleclick.net/ddm/clk/302982198;130105516;z
_______________________________________________
Geoserver-users mailing list
Geoserver-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geoserver-users
Hello Kirk, did you add this option in geowebcache.xml?
Thanks, Tommaso
On Mon, 18 Apr 2016 13:13:20 +0200, Kirk, Victor (GB) <VICTOR.KIRK@anonymised.com> wrote:
As well as adding a gridset for 512x512 images you also need to add a DPI parmamter on the gridset, thid is what I use:
<parameterFilters>
<stringParameterFilter>
<key>FORMAT_OPTIONS</key>
<defaultValue>dpi:90</defaultValue>
<normalize>
<locale></locale>
</normalize>
<values>
<string>dpi:90</string>
<string>dpi:180</string>
</values>
</stringParameterFilter>
</parameterFilters>
Note, I also found I had to use EPSG:3857 instead of 900913, gwc seems to get confused sometimes and claim there was no gridset defined when the request uses 3857 for anything but the build in on.
-----Original Message-----
From: tommaso [mailto:tommasodb@anonymised.com]
Sent: 18 April 2016 11:56
To: geoserver-users@lists.sourceforge.net
Subject: [Geoserver-users] Geoserver / Geowebcache on retina display
Hello, I build a map with Geoserver/Openlayers. I use the tiled layers wich metatile = 14 and gutter = 100.
If my map is requested from a device with retina display (ipad air, macbook...), the metatiling option seems to be ignored: on every tile is rendered a label. The result is, that all labels are repeated several time.
The problem is, that openlayers request tiles with dimension 512x512 instead of 256x256, while in the gridSet the dimensions are 256x256.
Openlayers simply double the sizes if on retina display. I could force openlayers to use always 256x256, but the tile would be probably blurred.
I tried to configure another gridset with same resolutions and dimensions
512x512 and I added this gridset to my layer, so that the layer have now 2 gridsets with same resolutions and different tiles sizes. Unfortunately does not not work.
The question is: can I say openlayers to use another gridset if on retina display?
There is maybe another solution?
Regards Tommaso
------------------------------------------------------------------------------
Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial!
https://ad.doubleclick.net/ddm/clk/302982198;130105516;z
_______________________________________________
Geoserver-users mailing list
Geoserver-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geoserver-users
This is in the gwc layer/layer-group file. You can do it via the UI on the layer group page or on the Tile caching tab on the layer page. The link below describes the settings
http://docs.geoserver.org/latest/en/user/services/wms/vendor.html#format-options
________________________________________
From: tommaso [tommasodb@anonymised.com]
Sent: 18 April 2016 12:42
To: geoserver-users@lists.sourceforge.net; Kirk, Victor (GB)
Subject: Re: [Geoserver-users] Geoserver / Geowebcache on retina display
Hello Kirk, did you add this option in geowebcache.xml?
Thanks, Tommaso
On Mon, 18 Apr 2016 13:13:20 +0200, Kirk, Victor (GB)
<VICTOR.KIRK@anonymised.com> wrote:
As well as adding a gridset for 512x512 images you also need to add a
DPI parmamter on the gridset, thid is what I use:
<parameterFilters>
<stringParameterFilter>
<key>FORMAT_OPTIONS</key>
<defaultValue>dpi:90</defaultValue>
<normalize>
<locale></locale>
</normalize>
<values>
<string>dpi:90</string>
<string>dpi:180</string>
</values>
</stringParameterFilter>
</parameterFilters>
Note, I also found I had to use EPSG:3857 instead of 900913, gwc seems
to get confused sometimes and claim there was no gridset defined when
the request uses 3857 for anything but the build in on.
-----Original Message-----
From: tommaso [mailto:tommasodb@anonymised.com]
Sent: 18 April 2016 11:56
To: geoserver-users@lists.sourceforge.net
Subject: [Geoserver-users] Geoserver / Geowebcache on retina display
Hello, I build a map with Geoserver/Openlayers. I use the tiled layers
wich metatile = 14 and gutter = 100.
If my map is requested from a device with retina display (ipad air,
macbook...), the metatiling option seems to be ignored: on every tile is
rendered a label. The result is, that all labels are repeated several
time.
The problem is, that openlayers request tiles with dimension 512x512
instead of 256x256, while in the gridSet the dimensions are 256x256.
Openlayers simply double the sizes if on retina display. I could force
openlayers to use always 256x256, but the tile would be probably blurred.
I tried to configure another gridset with same resolutions and dimensions
512x512 and I added this gridset to my layer, so that the layer have now
2 gridsets with same resolutions and different tiles sizes.
Unfortunately does not not work.
The question is: can I say openlayers to use another gridset if on
retina display?
There is maybe another solution?
Regards Tommaso
------------------------------------------------------------------------------
Find and fix application performance issues faster with Applications
Manager Applications Manager provides deep performance insights into
multiple tiers of your business applications. It resolves application
problems quickly and reduces your MTTR. Get your free trial!
https://ad.doubleclick.net/ddm/clk/302982198;130105516;z
_______________________________________________
Geoserver-users mailing list
Geoserver-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geoserver-users
Thank you, it works.
Because geoserver 2.7 does not support 'normalize', I changed you sample so:
<parameterFilters>
<stringParameterFilter>
<key>FORMAT_OPTIONS</key>
<defaultValue>dpi:90</defaultValue>
<values>
<string>dpi:90</string>
<string>dpi:180</string>
</values>
</stringParameterFilter>
</parameterFilters>
Regards, Tommaso
On 04/18/2016 01:47 PM, Kirk, Victor (GB) wrote:
This is in the gwc layer/layer-group file. You can do it via the UI on the layer group page or on the Tile caching tab on the layer page. The link below describes the settings
http://docs.geoserver.org/latest/en/user/services/wms/vendor.html#format-options
________________________________________
From: tommaso [tommasodb@anonymised.com]
Sent: 18 April 2016 12:42
To: geoserver-users@lists.sourceforge.net; Kirk, Victor (GB)
Subject: Re: [Geoserver-users] Geoserver / Geowebcache on retina display
Hello Kirk, did you add this option in geowebcache.xml?
Thanks, Tommaso
On Mon, 18 Apr 2016 13:13:20 +0200, Kirk, Victor (GB)
<VICTOR.KIRK@anonymised.com> wrote:
As well as adding a gridset for 512x512 images you also need to add a
DPI parmamter on the gridset, thid is what I use:
<parameterFilters>
<stringParameterFilter>
<key>FORMAT_OPTIONS</key>
<defaultValue>dpi:90</defaultValue>
<normalize>
<locale></locale>
</normalize>
<values>
<string>dpi:90</string>
<string>dpi:180</string>
</values>
</stringParameterFilter>
</parameterFilters>
Note, I also found I had to use EPSG:3857 instead of 900913, gwc seems
to get confused sometimes and claim there was no gridset defined when
the request uses 3857 for anything but the build in on.
-----Original Message-----
From: tommaso [mailto:tommasodb@anonymised.com]
Sent: 18 April 2016 11:56
To: geoserver-users@lists.sourceforge.net
Subject: [Geoserver-users] Geoserver / Geowebcache on retina display
Hello, I build a map with Geoserver/Openlayers. I use the tiled layers
wich metatile = 14 and gutter = 100.
If my map is requested from a device with retina display (ipad air,
macbook...), the metatiling option seems to be ignored: on every tile is
rendered a label. The result is, that all labels are repeated several
time.
The problem is, that openlayers request tiles with dimension 512x512
instead of 256x256, while in the gridSet the dimensions are 256x256.
Openlayers simply double the sizes if on retina display. I could force
openlayers to use always 256x256, but the tile would be probably blurred.
I tried to configure another gridset with same resolutions and dimensions
512x512 and I added this gridset to my layer, so that the layer have now
2 gridsets with same resolutions and different tiles sizes.
Unfortunately does not not work.
The question is: can I say openlayers to use another gridset if on
retina display?
There is maybe another solution?
Regards Tommaso
------------------------------------------------------------------------------
Find and fix application performance issues faster with Applications
Manager Applications Manager provides deep performance insights into
multiple tiers of your business applications. It resolves application
problems quickly and reduces your MTTR. Get your free trial!
https://ad.doubleclick.net/ddm/clk/302982198;130105516;z
_______________________________________________
Geoserver-users mailing list
Geoserver-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geoserver-users