[Gdal-dev] Managed GDAL API (CSharp) - Writing Bitmap to Dataset

[Tamas Szekeres]

Hi,

Do you have any specific issues why Band.WriteRaster or
Dataset.WriteRaster  doesn't work for you?
I guess those should work along with the pinned arrays provided by
LockBits pretty well.

Best regards,

Tamas



2008/5/3 Maksim Sestic <max at geoinova.com>:
>
>  Hi all,
>
>  I'm trying to figure out the opposite way of what GdalReadDirect.cs does,
>  copying a bitmap back into the instantiated Dataset. Is there any example
>  related to it?
>
>  Here's what I'm trying to do - since GDAL doesn't support raster filters
>  (i.e. Sharpen, Contrast, etc...) I'm using managed library to perform series
>  of bitmap manipulations. Then I need to save changed bitmap back into the
>  existing or newly created in-memory dataset. This is the "workflow":
>
>  1) Use managed GDAL API to open raster image file (raster image usually
>  contains lots of metadata)
>  2) Leave instantiated Dataset object intact
>  3) Use direct-read method (as in GdalReadDirect.cs) to get the Bitmap object
>  out of the Dataset
>  4) Apply some filters over the Bitmap
>  5a) Write Bitmap back into the already instantiated Dataset, preserving
>  metadata structure, or...
>  5b) Write Bitmap into the newly instantiated Dataset
>  6) Use managed GDAL Dataset methods to write/flush raster to disk
>
>  I'm stuck with step 5). I'm also aware that step 5) would take some
>  additional resource-wasting but that's OK with me.
>
>  Regards,
>  Maksim Sestic
>  --
>  View this message in context: http://www.nabble.com/Managed-GDAL-API-%28CSharp%29---Writing-Bitmap-to-Dataset-tp17034804p17034804.html
>  Sent from the GDAL - Dev mailing list archive at Nabble.com.
>
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