Re: [gdal-dev] Fast Pixel Access

2014-02-03 Thread Klokan Petr Přidal
Hi Jukka, David and others, We were rendering in the past the elevation data into Mercator tiles with http://www.maptiler.com/, the follower of my GDAL2Tiles.py script - for extremely fast pixel access to the elevation values at given geographic location - without a need for server software for ho

Re: [gdal-dev] Fast Pixel Access

2014-02-03 Thread David Baker (Geoscience)
Jukka, No matter the endpoint the user uses to access the data, behind the scenes, there must be fast pixel access, correct? Or are you saying that at WFS would do it quickly out of the box? David -Original Message- From: gdal-dev-boun...@lists.osgeo.org [mailto:gdal-dev-boun...@list

Re: [gdal-dev] Fast Pixel Access

2014-02-03 Thread Rahkonen Jukka (Tike)
Hi, Perhaps, but in this game the rule was not to have any GIS servers. Myself I would rather consider WFS. It could send heights from single points but also a profile along a line or all values within a polygon. -Jukka- Brian Case [r...@winkey.org] wrote: > -Jukka > tileindex, mapserver, an

Re: [gdal-dev] Problems linking 1.10 with CURL support

2014-02-03 Thread Jukka Rahkonen
Andy Cheetham geomaticSolutions.com> writes: > > Hi All > > I'm have trouble linking GDAL 1.10 with CURL support enabled. > > I can and have been building GDAL 1.9 with CURL so I'm sure I have all the > settings within the nmake.opt file correct, unless I have to do something > different for

Re: [gdal-dev] Fast Pixel Access

2014-02-03 Thread Brian Case
-Jukka tileindex, mapserver, and the gdal wms driver On Mon, 2014-02-03 at 17:20 +, Jukka Rahkonen wrote: > Luke Roth gmail.com> writes: > > > > > Another thing that might speed up access is setting the config > option GDAL_DISABLE_READDIR_ON_OPEN = TRUE, either as an environment > varia

Re: [gdal-dev] Fast Pixel Access

2014-02-03 Thread Jukka Rahkonen
Luke Roth gmail.com> writes: > > Another thing that might speed up access is setting the config option GDAL_DISABLE_READDIR_ON_OPEN = TRUE, either as an environment variable or on the command line.  That should help with GDAL reading the directory each time it opens a dataset.  I have an applica

[gdal-dev] Problems linking 1.10 with CURL support

2014-02-03 Thread Andy Cheetham
Hi All I'm have trouble linking GDAL 1.10 with CURL support enabled. I can and have been building GDAL 1.9 with CURL so I'm sure I have all the settings within the nmake.opt file correct, unless I have to do something different for the latest version. I'm on Windows 7 and have tried using both

Re: [gdal-dev] Fast Pixel Access

2014-02-03 Thread David Baker (Geoscience)
Dan, I had not heard of the KEA format and it looks promising, accept the need to compile. I am hoping to this with out-of-the-box GDAL. I also did not see a license statement. GDAL does support HDF5 (another format I am not familiar with), but it looks like the limit is 2GB for the built in

Re: [gdal-dev] Fast Pixel Access

2014-02-03 Thread Luke Roth
Another thing that might speed up access is setting the config option GDAL_DISABLE_READDIR_ON_OPEN = TRUE, either as an environment variable or on the command line. That should help with GDAL reading the directory each time it opens a dataset. I have an application which reads one value from each