I’m trying to work out the floor to floor height for columns (as opposed to the column’s modelled height), so if a column is attached to a 500 deep beam I want the total column height plus the 500 depth of the beam.

I’ve done this by creating a bounding box slightly above the top of the columns, then got the bounding box of all the floors/structural framing and then see which of these bounding boxes intersect. Because of the differences in parameters between floors and framing I’ve also made a parameter called “elevation” which gets the modelled level and it’s offset of the framing/floor and inputs the elevation as a number. So to get the floor to floor height I use the “elevation” of the intersecting element - the min bounding box point’s z value.

This was all working great and then I tested it on another project and got some weird results. The “elevation” is in the range of about 90000 - 110000 (which are the correct RLs, however the min z point is in the range of 500 - 1500. Does anyone know why this z value is so far out? I’m wondering if it’s a coordinate system problem. The survey point for the project is at RL 85700 but the error is greater than this value.

Thanks.