Corresponding Points of Different Objects

[Anonymous]

Hi,

I'm looking to find corresponding points between two different objects. For example, 

the above picture shows two different objects which has a lot of resemblance. I would like to find corresponding points, like the left arm rest in one object corresponds to the left arm rest in the other object and so on... But, how do i know they are almost the size and makes up an arm rest (or wheels, or seat etc.)?

Also, one object is made up primarily of meshes while the other is solid. 

Any suggestions are welcomed. Thanks!

[jeremytammik]

This is a non-trivial problem that will hardly find an answer here.

As you are probably aware, Revit does not support this in the product, so you cannot expect the Revit API to do so either.

I would suggest searching with a wider scope, e.g.:

https://duckduckgo.com/?q=compare+geometric+shapes

That quickly leads to a discussion of a simple 2D polygon comparison that is already quite interesting:

  
https://stackoverflow.com/questions/22159897/how-to-compare-two-shapes

Solving your 3D case is a project that numerous researchers are struggling with as we speak.

If you solve this task completely, you will make a reputation for yourself, not to mention a fortune.