How to extract points(edges) from a 3D surface model?

Support
1

Dear all,

I have hollow 3D objects and i need to to extract all the points(edges) from their surfuces in order to calculate the mean distance.

How can i extract all these points ?

Thanks a lot,
Chris

2

slicer.util.array(“modelName”)

3

Do you yoy ant to compute distance between two surface meshes?

4

Yes correct, the mean distance between all the surfaces points of the two models.
Thanks
Chris

5

You can use ModelToModelDistance extension for this.

6

Thanks a lot Andras
I will check it

7

e.g.:

mod1Arr = slicer.util.array("model1Name")
mod2Arr = slicer.util.array("model2Name")
#  the mean distance can be calculated by the center of mass
mod1Cen = np.mean(mod1Arr, axis=0)
mod2Cen = np.mean(mod2Arr, axis=0)
meanDist = np.linalg.norm(mod2Cen - mod1Cen)

The nearest distance may be found by “ModelToModelDistance extension” as followed by @lassoan …