# How generate a set of interest points on a surface from some points.

**URL:** <https://discourse.vtk.org/t/how-generate-a-set-of-interest-points-on-a-surface-from-some-points/7436>\
**Category:** Support\
**Created:** [December 20, 2021, 10:18am UTC](https://discourse.vtk.org/t/how-generate-a-set-of-interest-points-on-a-surface-from-some-points/7436 "2021-12-20T10:18:24Z")\
**Posts on this page:** 1\
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**Author:** ![lassoan](https://discourse.vtk.org/user_avatar/discourse.vtk.org/lassoan/32/50_2.png) [@lassoan](https://discourse.vtk.org/u/lassoan)\
**Post date:** [December 21, 2021, 5:32am UTC](https://discourse.vtk.org/t/how-generate-a-set-of-interest-points-on-a-surface-from-some-points/7436/6 "2021-12-21T05:32:32Z")

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Sorry, it is still not clear for me why a surgical navigation system would generate this point pattern. Is it for patient registration? Which navigation system is this? How the patient registration is done?

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