Re: [gdal-dev] Reading binary data from FileGDB

2021-05-02 Thread srweal
Hey, thanks so much for the response Paul. I feel kind of useless with this stuff but want to get more involved so I can contribute to GDAL eventually (where possible). This code looks like it'd do exactly what I need and would be great to see it end up within the source. Is that easy to create t

[gdal-dev] Reading binary data from FileGDB

2021-04-29 Thread srweal
Hi, I'm after advice. I need to read a BLOB field from various features within a FileGDB. I need to work with this data either in C# code (via the GDAL C# bindings), or else have it directly read into a SQL database (e.g. via ogr2ogr). I've hit up against a couple of problems doing this that I d

Re: [gdal-dev] C# - OGR.Feature.GetFieldAsBinary - Unavailable

2020-10-26 Thread srweal
I've not been able to progress this myself. I have posted it as an issue in GDAL which might be a better place for discussions/ideas - not sure: https://github.com/OSGeo/gdal/issues/3041 -- Sent from: http://osgeo-org.1560.x6.nabble.com/GDAL-Dev-f3742093.html

[gdal-dev] C# - OGR.Feature.GetFieldAsBinary - Unavailable

2020-10-07 Thread srweal
Hi all, I'm seeking information about why the GetFieldAsBinary method is missing in OGR.Feature when accessing data sources using C# binaries (from GIS Internals). I've tried a number of different versions and this is not there. I'm specifically trying to read binary image data from a FileGDB t

[gdal-dev] Re: Datum Shifts with OSR.CoordinateTransform

2011-05-10 Thread srweal
Armin, Thanks for the reply. That seems like a logical approach, but can you or any of the GDAL developers tell me whether these +TOWGS84 parameters are applied/supported or not. Also, I have seen some references to using a +NADGRID option for specifying a transformation grid (rather than just

[gdal-dev] Datum Shifts with OSR.CoordinateTransform

2011-05-09 Thread srweal
Hi all, I'm using the C# wrapper and GDAL/OGR binaries from Tamas' repository (http://vbkto.dyndns.org:1280/sdk/) and am trying to do coordinate transformation that includes a datum shift on a geometry. I'm wanting to understand how I can control what shift parameters are used when calling the

[Gdal-dev] ECW Hanging

2010-01-07 Thread srweal
Hi, I'm experiencing intermittent problems running the FWTools 2.2.6 version of GDAL, including ECW support. I'm using the library to render maps (or map tiles) produced using the SharpMap library, an open-source mapping library written in C#.NET. SharpMap access the standard GDAL operations