Hi,
(Linux ubuntu 10.04 / tomcat6 / Geoserver 2.1.2 / Geowebcache 1.2.6)
In preparation for uploading 1300 Aerial Photos I have been trying to reduce the photos from 75mb to something smaller. After reading lots of use-cases I have decided to simple reduce the size using
gdal_translate -outsize 25% 25% which reduces the resolution to 1/4 of the original. The size goes from 75mb to 4,5 for each image. Obviously zooming into 1:100 doesn´t look good, but this level of detail wasn´t really needed!
My question is …If I use gdaladdo to create overviews, will there be any benefits if the images are served via GeoWebCache?
cheers for any advice,
Rob
Adding overviews will make your imagery lighter when being served.
regards,
Imran
On Tue, Jan 31, 2012 at 12:20 PM, Robert Buckley <robertdbuckley@anonymised.com> wrote:
Hi,
(Linux ubuntu 10.04 / tomcat6 / Geoserver 2.1.2 / Geowebcache 1.2.6)
In preparation for uploading 1300 Aerial Photos I have been trying to reduce the photos from 75mb to something smaller. After reading lots of use-cases I have decided to simple reduce the size using
gdal_translate -outsize 25% 25% which reduces the resolution to 1/4 of the original. The size goes from 75mb to 4,5 for each image. Obviously zooming into 1:100 doesn´t look good, but this level of detail wasn´t really needed!
My question is …If I use gdaladdo to create overviews, will there be any benefits if the images are served via GeoWebCache?
cheers for any advice,
Rob
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Hi,
If imagery is finally used from GeoWebCache the only effect that overviews have is making the seeding of cache a bit faster. When the cache is full GWC will never hit the original images.
-Jukka Rahkonen-
Imran Rajjad wrote:
Adding overviews will make your imagery lighter when being served.
regards,
Imran
On Tue, Jan 31, 2012 at 12:20 PM, Robert Buckley <robertdbuckley@anonymised.com<mailto:robertdbuckley@anonymised.com>> wrote:
Hi,
(Linux ubuntu 10.04 / tomcat6 / Geoserver 2.1.2 / Geowebcache 1.2.6)
In preparation for uploading 1300 Aerial Photos I have been trying to reduce the photos from 75mb to something smaller. After reading lots of use-cases I have decided to simple reduce the size using
gdal_translate -outsize 25% 25% which reduces the resolution to 1/4 of the original. The size goes from 75mb to 4,5 for each image. Obviously zooming into 1:100 doesn´t look good, but this level of detail wasn´t really needed!
My question is ...If I use gdaladdo to create overviews, will there be any benefits if the images are served via GeoWebCache?
cheers for any advice,
Rob
------------------------------------------------------------------------------
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is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3,
Metro Style Apps, more. Free future releases when you subscribe now!
http://p.sf.net/sfu/learndevnow-d2d
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I.R