improve error catching for rotary spectra plot

Author: hhourston

pycurrents_ADCP_processing/plot_westcoast_nc_LX.py

@@ -2538,15 +2538,17 @@ def create_westcoast_plots(
             # Only proceed if the bin index is in range
             if bin_idx < len(bin_depths_lim):
                 # Add extra step in case the tidal analysis fails
-                plot_name = make_plot_rotary_spectra(
-                    dest_dir, ncdata.filename, ncdata.station, ncdata.deployment_number,
-                    ncdata.instrument_depth.data, ncdata.instrument_serial_number.data,
-                    bin_number=bin_idx, bin_depths_lim=bin_depths_lim, time_lim=time_lim,
-                    ns_lim=ns_lim, ew_lim=ew_lim, latitude=ncdata.latitude.data,
-                    resampled=resampled, axis=-1
-                )
-                if plot_name is not None:
-                    fnames_rot_spec.append(plot_name)
+                try:
+                    fname_rot_spec = make_plot_rotary_spectra(
+                        dest_dir, ncdata.filename, ncdata.station, ncdata.deployment_number,
+                        ncdata.instrument_depth.data, ncdata.instrument_serial_number.data,
+                        bin_number=bin_idx, bin_depths_lim=bin_depths_lim, time_lim=time_lim,
+                        ns_lim=ns_lim, ew_lim=ew_lim, latitude=ncdata.latitude.data,
+                        resampled=resampled, axis=-1
+                    )
+                    fnames_rot_spec.append(fname_rot_spec)
+                except ValueError as e:
+                    print(f'Rotary spectra plot failed with error: {e}')
             else:
                 print(f'Warning: Bin index {bin_idx} for rotary spectra out of range of limited bins with '
                       f'length {len(bin_depths_lim)}')