Passed metadata through to GeoArray subset that comes out of GeoArray.get_subset()

geoarray/baseclasses.py

@@ -657,7 +657,6 @@ class GeoArray(object):
         :return:
         """
 
-        # TODO add support for global domain metadata
         if not self._gdalDataset_meta_already_set:
             assert self.filePath
             ds = gdal.Open(self.filePath)
@@ -669,6 +668,7 @@ class GeoArray(object):
             self._dtype        = gdal_array.GDALTypeCodeToNumericTypeCode(ds.GetRasterBand(1).DataType)
             self._geotransform = ds.GetGeoTransform()
             self._projection   = EPSG2WKT(WKT2EPSG(ds.GetProjection())) # temp conversion to EPSG needed because GDAL seems to modify WKT string when writing file to disk (e.g. using gdal_merge) -> conversion to EPSG and back undos that
+
             if not 'nodata' in self._initParams or self._initParams['nodata'] is None:
                 band           = ds.GetRasterBand(1)
                 self._nodata   = band.GetNoDataValue()   # FIXME this does not support different nodata values within the same file
@@ -678,6 +678,10 @@ class GeoArray(object):
                 band     = ds.GetRasterBand(b+1)
                 self.metadata[b] = GeoSeries(band.GetMetadata())
 
+            # read global domain metadata
+            # TODO add support for global domain metadata
+
+
             ds = band = None
 
         self._gdalDataset_meta_already_set = True
@@ -1240,7 +1244,9 @@ class GeoArray(object):
                        zslice if zslice else slice(None)] # band
         sub_ulXY = imXY2mapXY((xslice.start, yslice.start), self.gt)
         sub_gt = (sub_ulXY[0], self.gt[1], self.gt[2], sub_ulXY[1], self.gt[4], self.gt[5])
-        sub_gA = GeoArray(sub_arr, sub_gt, self.prj)
+        sub_gA = GeoArray(sub_arr, sub_gt, self.prj,
+                          bandnames=list(self.bandnames.keys()), nodata=self.nodata, progress=self.progress, q=self.q)
+        sub_gA.meta = self.meta
 
         return sub_gA if return_GeoArray else (sub_arr, sub_gt, self.prj)