Re: [gdal-dev] GDAL Warp API Java bindings

2013-09-10 Thread Markus Schneider
Hi Florent, yes, I am aware of that and I managed to create BufferedImages from GDAL Datasets. However, I find the Java Image API (and the whole subject) relatively complex, so I am not sure if my code is efficient. Can anybody have a quick look at my code and tell me if there are any quick perfo

Re: [gdal-dev] Extracting (arbitrary?) overviews from ECW file

2013-09-10 Thread Markus Schneider
Ok, I just tried it out with an example GeoTIFF, and the mentioned methods seem to benefit from overviews in the file, so it seems to automatically do the right thing. Best regards, Markus Am 10.09.2013 11:20, schrieb Markus Schneider: > There's one question remaining: > > Will the mentioned met

Re: [gdal-dev] Extracting (arbitrary?) overviews from ECW file

2013-09-10 Thread Markus Schneider
There's one question remaining: Will the mentioned methods automatically select the best-matching overview, or do I have to do this myselft in order to achieve the best performance? This probably doesn't matter to ECW, but to other image formats with "real" overviews (such as GeoTIFF), right? Be

Re: [gdal-dev] Extracting (arbitrary?) overviews from ECW file

2013-09-10 Thread Markus Schneider
I believe I learned how to do this, so to answer my own question: Some of the Band.ReadRaster(...) methods allow to explictly specify the buffer width and height, e.g. [1]. This allows to extract resolutions that differs from the original image (and the overviews). Best regards, Markus [1] http:

[gdal-dev] (no subject)

2013-09-10 Thread Ahmet Temiz
hello can you tell me what is wrong with following expression: (most likely regular expression) ogr2ogr -where "DETAY!='YRD_MUNHANI' or DETAY!='PAFTA_KENARI' or DETAY!='KIYI'" dene.shp h22a1top.shp regards -- Ahmet Temiz Jeoloji Müh. Afet ve Acil Durum Yönetimi Başkanlığı Planlama ve Zarar