topic Re: column disappears from where wall was cut in Modeling

column disappears from where wall was cut

Quirk — Tue, 09 May 2023 14:17:41 GMT

Using AC23 on a mac os 10.13. The bottom part of a column, which was placed above a roof, disappears below the point from where a wall was cut using solid operations>subtraction with upwards extrusion. The full column is visible if it is moved out of the area which the wall would occupy had it not been cut. This is happening in both 3D and sections. Can't find this topic when searching.

Re: column disappears from where wall was cut

Lingwisyer — Wed, 22 Jan 2020 02:31:34 GMT

SOE are ignored when it comes to element intersections. In your case, your wall is still clipping your column due to using a building material that has a Intersection Priority greater than that of column. You can either use a building material that has a greater Intersection Priority for your column, whether this be by changing the building material used or by modifying its Intersection Priority, or change the Intersection Group of your column to differ from that of your wall.

Ling.

Re: column disappears from where wall was cut

Quirk — Thu, 23 Jan 2020 20:18:09 GMT

Thanks, It was easy to find the junction order of the wall but not of the column—which remains illusive. Changing the metal column to concrete solved the issue, but not satisfactorily. How does one change the Intersection group?
thanks again

Re: column disappears from where wall was cut

Barry Kelly — Fri, 24 Jan 2020 00:58:03 GMT

Quirk wrote:
How does one change the Intersection group?

It is in the layer settings.
If the column and wall are in the same layer then they will trim each other automatically based on the building material strength - unless the layer intersection priority number is 0 (zero), then nothing in that layer will trim.

If they are in separate layers, then if each layer has the same IP number - they will trim.
If the layers have different IP numbers they will not.

Remember that these IP numbers are stored in the layer combination.
So it is possible to set one layer combination where they trim, and another where they don't.

This problem has nothing to do with the junction order of the walls - that is just between walls.

Barry.