Re: [udig-devel] Geotiff files

[andrea antonello <andrea.antonello@xxxxxxxxx>]

Hi Juho,

> Yes i mean't internal overviews.
>
> Here is gdal commands what i've been use. First i will create translate.
>
> gdal_translate -of Gtiff -co tiled=yes -co compress=lzw -co predictor=2 -outsize 80% 80% abc.tif translated.tif
>
> then i'll use gdaladdo.
>
> gdaladdo -r nearest --config TILED YES translated.tif 2 4 8 16
>
> These two commands has been working well for my previously actions.
> I just wondering that is there some kind of limit for internal overviews? i mean is i have small picture and i'll try to do 4 or 5 overview
> does it corrupt an image?

I more or less use the same command to create the overviews and I also
always use 2 - 16. And it works great for me and is very fast.

I am a bit clueless. The only thing I could do, is try your data and
see if I get any error in debug mode. Not sure if you can make a piece
available to reproduce the timeout?

Cheers,
Andrea


>
> - Kokkonen
>
>
>
>
> ----- Original Message -----
> From: "andrea antonello" <andrea.antonello@xxxxxxxxx>
> To: "User-friendly Desktop Internet GIS" <udig-devel@xxxxxxxxxxxxxxxxxxxxx>
> Sent: Thursday, March 14, 2013 1:47:10 PM
> Subject: Re: [udig-devel] Geotiff files
>
> Hi Juho,
>
>> I have 10 Geotiff files. I have been done tiling and pyramized operations on each file. Then i've done Image Mosaic player (shp) so i can use all Tiffs at same time.
>
> I suppose by pyramid you mena the internal overviews? Did you do that
> with gdal?
>
>> When i zoom, udig starts to render Job. When the job is done image wont show, i see only white canvas, after i been waiting 5minutes image comes to visible.
>>
>> What i've done wrong?
>
> The only thing I can think of is that they are not tiled or
> "overviewed" properly, the images take very long to render. Can you
> share the command you use, if it is gdal, maybe we can help.
>
> Cheers,
> Andrea
>
>
>
>>
>> - Kokkonen
>> _______________________________________________
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