scverse · timtreis · Aug 18, 2026
diff --git a/_static/img/point_density.png b/_static/img/point_density.png
diff --git a/examples/index.md b/examples/index.md
@@ -24,6 +24,16 @@ Draw regions of interest directly on a `spatialdata-plot` canvas with
 `sdata.pl.annotate(...)` and persist them as a `ShapesModel` element.
 :::
 
+:::{grid-item-card} Point density maps
+:link: /notebooks/examples/point_density
+:link-type: doc
+:img-top: /notebooks/_static/img/point_density.png
+
+Turn tens of millions of Xenium transcripts into a readable density
+heatmap with `render_points(density=True)`, reshape it with `density_how`,
+and draw a separate density per gene.
+:::
+
 ::::
 <!-- gallery-cards-end -->
 
@@ -33,4 +43,5 @@ Draw regions of interest directly on a `spatialdata-plot` canvas with
 
 visium_mouse_brain
 interactive_annotate
+point_density
 ```
diff --git a/examples/point_density.ipynb b/examples/point_density.ipynb