# Compare Match Geometry of Solids **URL:** \ **Category:** Geometry\ **Tags:** python, dynamo, api\ **Created:** [May 6, 2022, 10:10am UTC](https://forum.dynamobim.com/t/compare-match-geometry-of-solids/76249 "2022-05-06T10:10:16Z")\ **Posts on this page:** 1\ **Showing post:** 45
**Author:** ![RMohareb](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/rmohareb/32/120534_2.png) [@RMohareb](https://forum.dynamobim.com/u/RMohareb)\ **Post date:** [January 17, 2024, 7:19am UTC](https://forum.dynamobim.com/t/compare-match-geometry-of-solids/76249/45 "2024-01-17T07:19:47Z")
> [@Register Family with point cloud to create existing model for Linear str.(bridge and tunnel)](https://forum.dynamobim.com/t/register-family-with-point-cloud-to-create-existing-model-for-linear-str-bridge-and-tunnel/81952): > > Hi All, I would like to share how to create the existing model of bridge based on point cloud insted Alignment and profile. challenget pensive pensive -The challenge here we need to predict the CL of the bridge to create existing model that we do not have the data from transportation. what we have the laser scane (point cloud). Input point cloud for the Bridge Bridge cross section Workflow load the point cloud into the project as \*.rcp create a adaptive family (single… 1- convert solid 1and solid 2 to point cloud 2- use ICP registration between these two pointcloud (solid after convert it to point cloud) to get the transformation matrix this trasformation matrix is the matrix you need it to transform solid 1 to solid 2 --- _[View the full topic](https://forum.dynamobim.com/t/compare-match-geometry-of-solids/76249)._