link to latest demo L1 file

CHANGES.rst

@@ -14,6 +14,8 @@ Cubeviz
 - Add Spectral Extraction plugin for Cubeviz, which converts spectral cubes
   to 1D spectra with propagated uncertainties [#2039]
 
+- Support for loading Roman WFI Level 1 (ramp) files [#2376]
+
 Imviz
 ^^^^^
 

jdaviz/configs/cubeviz/plugins/slice/slice.py

@@ -119,7 +119,7 @@ def _watch_viewer(self, viewer, watch=True):
                     # conversion can be done efficiently
                     self._update_data(viewer_data[0].spectral_axis)
                 else:
-                    sample_index = np.arange(1, 1 + viewer_data[0].shape[-1]) * u.one
+                    sample_index = np.arange(viewer_data[0].shape[-1]) * u.one
                     self._update_data(sample_index)
 
             if viewer not in self._indicator_viewers:
@@ -143,7 +143,7 @@ def _update_reference_data(self, reference_data):
             return  # pragma: no cover
 
         if reference_data.meta.get(cubeviz_ramp_meta_flag, False):
-            sample_index = np.arange(1, 1 + reference_data['flux'].shape[-1]) * u.one
+            sample_index = np.arange(reference_data['flux'].shape[-1]) * u.one
             self._update_data(sample_index)
         else:
             self._update_data(reference_data.get_object(cls=Spectrum1D).spectral_axis)

notebooks/concepts/cubeviz-roman-ramp.ipynb

@@ -24,10 +24,13 @@
     "import os\n",
     "from urllib.request import urlretrieve\n",
     "\n",
-    "url_L1 = \"https://stsci.box.com/shared/static/24gpvqb9676acdy6hjvymc2llgcny8ul.asdf\"\n",
+    "force_download = False\n",
+    "\n",
+    "# the L1 file linked below is compatible with roman_datamodels==0.17.1\n",
+    "url_L1 = \"https://stsci.box.com/shared/static/4zjln12uc72d6rwu8mkorsyt2s84zfhj.asdf\"\n",
     "local_path = \"L1.asdf\"\n",
     "\n",
-    "if not os.path.exists(local_path):\n",
+    "if not os.path.exists(local_path) or force_download:\n",
     "    urlretrieve(url_L1, local_path)"
    ]
   },
@@ -54,6 +57,14 @@
     "cubeviz.load_data(local_path, data_label='Roman L1')\n",
     "cubeviz.show(height=1000)"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "4312b177-e0d5-45da-95ba-81c910ffff4f",
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {