Made sure that when the nodatavalue is set, it is cast to the right datatype

formats/bandraster.py

@@ -117,7 +117,10 @@ class BandRaster(GridEnvelope2D, Raster):
                 self.xul = ulxmap - 0.5*self.dx
                 self.yul = ulymap + 0.5*self.dy 
                 hl = hf.readline();
-                self.nodatavalue = int(hl.replace('NODATA', ''));
+                if self.dataformat in ['f', 'd']:
+                    self.nodatavalue = float(hl.replace('NODATA', '').strip());
+                else:
+                    self.nodatavalue = int(hl.replace('NODATA', '').strip());
                 hf.close()
             else:
                 # Assume that the rest of the information has to be read from a world file