Save polygons under correct key in vizgen loader (#62)

Author: LouisK92

src/datasets/loaders/vizgen_merscope/script.py

@@ -115,7 +115,7 @@ def read_boundary_hdf5(folder):
 elements_renaming_map = {
     f"{name}_z3"          : "morphology_mip", #TODO: that is actually not the morphology_mip, i.e. either we should rename the label later, or we should actually project over z. But we also want to have 3d at some point anyway
     f"{name}_transcripts" : "transcripts",
-    f"{name}_polygons"    : "cell_polygons",
+    f"{name}_polygons"    : "cell_boundaries",
     f"table"              : "metadata",
 }
 
@@ -144,7 +144,7 @@ def read_boundary_hdf5(folder):
 # TODO: Just note that currently the rasterize function has a bug, this error is small though with the given spatial resolution.
 #       Check https://github.com/scverse/spatialdata/issues/165 for updates on this bug.
 sdata["cell_labels"] = sd.rasterize(
-    sdata["cell_polygons"],
+    sdata["cell_boundaries"],
     ["x", "y"],
     min_coordinate=[int(img_extent["x"][0]), int(img_extent["y"][0])],
     max_coordinate=[int(img_extent["x"][1]), int(img_extent["y"][1])],