public static async Task <double> GetCellSizeAsync(Uri gdbUri, string rasterName)
{
double cellSize = 0.0F;
await QueuedTask.Run(() => {
using (Geodatabase geodatabase = new Geodatabase(new FileGeodatabaseConnectionPath(gdbUri)))
using (RasterDataset rasterDataset = geodatabase.OpenDataset <RasterDataset>(rasterName))
{
RasterBandDefinition bandDefinition = rasterDataset.GetBand(0).GetDefinition();
Tuple <double, double> tupleSize = bandDefinition.GetMeanCellSize();
cellSize = (tupleSize.Item1 + tupleSize.Item2) / 2;
}
});
return(cellSize);
}
public static async Task <IList <BA_Objects.Interval> > ReadReclassRasterAttribute(Uri gdbUri, string rasterName)
{
IList <BA_Objects.Interval> lstInterval = new List <BA_Objects.Interval>();
await QueuedTask.Run(() => {
using (Geodatabase geodatabase = new Geodatabase(new FileGeodatabaseConnectionPath(gdbUri)))
using (RasterDataset rasterDataset = geodatabase.OpenDataset <RasterDataset>(rasterName))
{
RasterBandDefinition bandDefinition = rasterDataset.GetBand(0).GetDefinition();
Tuple <double, double> tupleSize = bandDefinition.GetMeanCellSize();
if (Math.Round(tupleSize.Item1, 5) != Math.Round(tupleSize.Item2, 5))
{
ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("The X and Y cell size values are not the same for " + gdbUri.LocalPath + "\\" +
rasterName + ". This may cause problems with some BAGIS functions!!", "BAGIS-PRO");
}
double cellSize = (tupleSize.Item1 + tupleSize.Item2) / 2;
Raster raster = rasterDataset.CreateDefaultRaster();
using (Table rasterTable = raster.GetAttributeTable())
{
TableDefinition definition = rasterTable.GetDefinition();
int idxName = definition.FindField(Constants.FIELD_NAME);
int idxLowerBound = definition.FindField(Constants.FIELD_LBOUND);
int idxUpperBound = definition.FindField(Constants.FIELD_UBOUND);
int idxCount = definition.FindField(Constants.FIELD_COUNT);
using (RowCursor cursor = rasterTable.Search())
{
while (cursor.MoveNext())
{
BA_Objects.Interval interval = new BA_Objects.Interval();
Row row = cursor.Current;
interval.Value = row[Constants.FIELD_VALUE];
if (idxName > 0)
{
interval.Name = Convert.ToString(row[idxName]);
}
else
{
interval.Name = Constants.VALUE_UNKNOWN;
}
if (idxUpperBound > 0)
{
interval.UpperBound = Convert.ToDouble(row[idxUpperBound]);
}
if (idxLowerBound > 0)
{
interval.LowerBound = Convert.ToDouble(row[idxLowerBound]);
}
if (idxCount > 0)
{
interval.Area = cellSize *Convert.ToInt32(row[idxCount]);
}
lstInterval.Add(interval);
}
}
}
}
});
return(lstInterval);
}
