How to create line or arc in center of closed or open object

[criticalmaster]

I am trying to find an automated way to draw lines or arcs in the mathematical center between two lines that are curved and/or not parallel.

 

Here an example:

 

 

The red line is the result of that command that I am looking for.

 

I can't or don't want to draw the whole object with the line in the center. The white objects are existing and the "center line" would have to be created from them.

 

In this example I have drawn the arcs and lines manually. But since I have situations where I want to create these "center lines" for hundres of objects and preferably in the actual, mathematical center I don't want to draw inacurate lines arduously by hand.

 

At the moment I'm helping myself with creating lines close to the center with the offset command. But it is still very time consuming. It looks like this:

 

 

Anyone an idea?

 

thanks heaps

[criticalmaster]

Admin: you might wanna move this thread to:

AutoCAD Drawing Management & Output?