> For the complete documentation index, see [llms.txt](https://datashapes.gitbook.io/primer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://datashapes.gitbook.io/primer/revit/modificationtracker.geometrychanges.md).

# ModificationTracker.GeometryChanges

## 1. Description

This node compares meshed approximations of the geometry of elements that exist in both DocumentA and DocumentB. It will then output the elements with the same geometry and those with a modified geometry in separate lists.

![](/files/-LZYpAxGt8-5M-af8qjv)