Closed surface

Use this analysis to make measurements about processes or sections of a process within a 3D structure (i.e., closed contours next to each other in the z direction).

You can access it via Analyze>Neuron data>Anatomical.

In the example below, an axon enters and exits the 3D structure four times. In the "length" column, you can see the length of each part of the axon that is contained within the 3D structure.