Merge pull request #90 from ratt-ru/issue-88

Issue 88

Author: o-smirnov

setup.py

@@ -5,8 +5,7 @@
 
 requirements = [
 "dask-ms[xarray]",
-"distributed==2.14.0",
-"dask[complete]==2.14.0",
+"dask[complete]",
 "datashader>=0.12.0", 
 "holoviews",
 "matplotlib>2.2.3; python_version >= '3.5'",

shade_ms/data_mappers.py

@@ -372,12 +372,19 @@ def get_value(self, group, corr, extras, flag, flag_row, chanslice):
                 if flag is None:
                     flag = bad_bins
                 else:
-                    flag = da.logical_or(flag, bad_bins)
+                    flag = da.logical_or(flag.data, bad_bins)
         else:
             if self._is_discrete is True:
                 raise TypeError(f"{self.label}: column chnaged from discrete to continuous-valued. This is a bug, or a very weird MS.")
             self._is_discrete = False
 
+        # Ensure dask arrays for creating dask masked arrays
+        if isinstance(coldata, xarray.DataArray):
+            coldata = coldata.data
+
+        if isinstance(flag, xarray.DataArray):
+            flag = flag.data
+
         bad_data = da.logical_not(da.isfinite(coldata))
         if flag is not None:
             return dama.masked_array(coldata, da.logical_or(flag, bad_data))

shade_ms/data_plots.py

@@ -446,7 +446,7 @@ def create_plot(ddf, index_subsets, xdatum, ydatum, adatum, ared, cdatum, cmap,
         alpha -= min_alpha
         if nulls.all():
             log.debug(f"alpha<min_alpha for entire plot -- all data below lower clip perhaps?")
-        else:    
+        else:
             #if percentile if specified, use that to override saturate_alpha
             if saturate_alpha is None:
                 saturate_alpha = np.percentile(alpha[~nulls], saturate_percentile)