REVIT API to measure the height by automatically recognizing the level of the floor

[seoyeonM9XZR]

Looking at the image file, there is a difference in the slope of the floor.

I want to know the height of LEVEL1 and LEVEL2 excluding the step by recognizing the step of the floor.

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The yellow part should be excluded.

The part I want to know is the green part.

[jeremy_tammik · Accepted solution]

There are many different approaches to this.

One would be to determine the height of the two levels and subtract the floor thickness.

A completely different approach would be use a ReferenceIntersector to shoot a ray downwards vertically from the midpoint of the blue line and determine where it intersects the top face of the floor.

[seoyeonM9XZR]

Your answer was very helpful to me. 

Based on your answer I will try the api.

thank you so very much. 👍