Add custom healpix plotting method

src/.pylintrc

@@ -293,7 +293,7 @@ max-bool-expr=5
 max-branches=20
 
 # Maximum number of locals for function / method body.
-max-locals=20
+max-locals=25
 
 # Maximum number of parents for a class (see R0901).
 max-parents=7

src/hats/catalog/healpix_dataset/healpix_dataset.py

@@ -15,6 +15,7 @@
 from hats.catalog.dataset import Dataset
 from hats.catalog.dataset.table_properties import TableProperties
 from hats.catalog.partition_info import PartitionInfo
+from hats.inspection import plot_pixels
 from hats.io import file_io, paths
 from hats.io.file_io import read_parquet_metadata
 from hats.pixel_math import HealpixPixel
@@ -225,3 +226,11 @@
         return align_with_mocs(
             self.pixel_tree, other_cat.pixel_tree, self.moc, other_cat.moc, alignment_type=alignment_type
         )
+
+    def plot_pixels(self, **kwargs):
+        """Create a visual map of the pixel density of the catalog.
+
+        Args:
+            kwargs: Additional args to pass to `hipscat.inspection.visualize_catalog.plot_healpix_map`
+        """
+        return plot_pixels(self, **kwargs)