Wrong Visium radii?

[LucaMarconato]

Due to several insidious bugs in napari and napari-spatialdata concerning the radii of points in the macOS platform (we have to use points instead of the more intuitive shapes because of performance reasons) we generally overlooked the correct size of the Visium circles.

Today working on them I noticed that the Visium radius seems to be slightly bigger than the expected one. The correct expected sizes are the one shown in the images (55µm radii, 100µm center-to-center distances), as shown in the figure below. We should check this again after one crucial bug in napari-spatialdata on the points size is addressed: scverse/napari-spatialdata#209.

In alternative, we could address this now by re-enabling the representation of circles as ellipses.

[LucaMarconato]

The linked bug is now fixed. The Visium radii are wrong. Here is what we have (the radii are too large).