[tisa]

Hello together,

is there any way to get coordinates of a point of a boundary via macro? I'm currently using the centroid function (surface avg report) to get the midpoint of a boundary. I'm looking for a way to get another point, to create a vector.

My goal is to create local coordinate systems in the midpoint of boundaries. I want the z-axis to be the normal vector of those boundaries.

My current idea is to create three vectors:

• Vector 1 (x-axis): midpoint + another point on the surface
• Vector 2 (z-axis): normal vector via surf avg report + normal function
• Vector 3 (y-axis): Cross product of vector 1&2

I didn't find any way to use the normal vector directly as the z-axis (this would be the easiest way).

So anyone an idea how to get another point on a boundary beside the midpoint or knows how to create a local cs and use the normal vector of this boundary directly as the z-axis?

Thanks in advance.

[tisa]

I found a workaround for my problem with the local cs:
Create a normal vector of the boundary -> create a local cs with the normal vector as the x-axis -> rotate the local cs around its y-axis for 90 deg.