private static double GetAreaBase(IRasterDataProvider rdp, double areaBase)
{
try
{
double lon = rdp.CoordEnvelope.Center.X;
double lat = rdp.CoordEnvelope.Center.Y;
areaBase = AreaCountHelper.CalcArea(lon, lat, rdp.ResolutionX, rdp.ResolutionX);
}
finally
{
if (rdp != null)
{
rdp.Dispose();
}
}
return(areaBase);
}
private double CalcTotalArea(IRasterDataProvider dataProvider, int[] aoi, float minValue, float maxValue)
{
double convertArea = 0;
IRasterOperator <Int16> rasterOper = new RasterOperator <Int16>();
int count = rasterOper.Count(dataProvider, aoi, (value) =>
{
if (minValue < value && value <= maxValue)
{
return(true);
}
else
{
return(false);
}
});
convertArea = count * AreaCountHelper.CalcArea(dataProvider.ResolutionX, dataProvider.ResolutionY);
return(convertArea / 1000000);
}
