# distance along poly line (spline)

**URL:** https://discourse.vtk.org/t/distance-along-poly-line-spline/1153
**Category:** Support
**Created:** [June 15, 2019, 5:18pm UTC](https://discourse.vtk.org/t/distance-along-poly-line-spline/1153 "2019-06-15T17:18:42Z")
**Posts on this page:** 1
**Showing post:** 4

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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: [June 19, 2019, 4:32pm UTC](https://discourse.vtk.org/t/distance-along-poly-line-spline/1153/4 "2019-06-19T16:32:16Z")

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Computing distance from linear segments is not necessarily a limitation but often preferable, because it guarantees that the curve that the user can see (which is always made up of linear segments, as required by the renderer) is the same model that is used for computations.

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