Morning,Using ArcGIS 10.1 Build 3035...I am having terrible trouble setting a NoData value for a file geodatabase rasterdataset with ArcObjects. I create the rasterDataset, and populate the pixels without trouble. I set the NoData to -9999, which is my preferred nodata value.
//http://forums.esri.com/Thread.asp?c=93&f=993&t=258752
private IRaster getRaster(IRasterDataset rasterDataset, float noDataValue)
{
// Create a raster in the dataset; also add a bands collection
IRaster rc = new RasterClass();
IRasterBandCollection rasterBC;
rasterBC = (IRasterBandCollection)rc;
rasterBC.AppendBands((IRasterBandCollection)rasterDataset);
// Now set the raster properties
IRasterProps resultProps = (IRasterProps)rasterBC.Item(0);
// assign the NoDataValue and return
resultProps.NoDataValue = noDataValue;
return rc;
}
There are no errors thrown, so I assume all is well.I then look at the properties of my new rasterDataset in ArcCatalog. All settings are fine OTHER than the NoValue. Hmm. I have been tearing my hair out trying to make this value get saved into the FGBD.To try and find my mistake, using ArcCatalog, I manually created a new FGBD, then manually created a new RasterDataset (picel type: floating point, and set the NoData value to -9999. It appears to accept the value, but if I then F5 to refresh the geodatabase, and check the raster settings, the noData value is blank.Hmm.This leads me to believe there is a problem setting the novalue field in ArcGIS10.1 when using a file geodatabase. It is not just in ArcObjects, but also in ArcCatalog. I trawled thru the forums, and can see others have had this problem, but there is nobody with a clear solution which actually works. Indeed, if it does not manually work in ArcCatalog, then ArcObjects has no chance.Can anyone help?
