topic Re: how to offset with a instance-formula istance for a MASS form in Revit Architecture Forum

how to offset with a instance-formula istance for a MASS form

heichan88 — Wed, 06 Jul 2022 16:10:28 GMT

Hello,
I need to create a mass form by a loop of 3D lines (green line)which offset from 3D-snapping points (red dots)
the offset distance ("a") need to be a flex instance formula

Please advice how, thanks

Re: how to offset with a instance-formula istance for a MASS form

barthbradley — Wed, 06 Jul 2022 16:44:14 GMT

Are you trying to create a parametric wedge-shaped form?

Re: how to offset with a instance-formula istance for a MASS form

heichan88 — Wed, 06 Jul 2022 17:19:00 GMT

hello @barthbradley

it is not wedge, it is a main corner beam which bottom edge ti be offset （“a”） from a flex distance from the edge of red joist (a=width of red joist, which varies)

if offset by 3D point, the distance of host is U-V, not controllable, and if offset from a reference line betwee two 3D points, the mass will be conflicted unable to create a form, as I tried

Thanks

Re: how to offset with a instance-formula istance for a MASS form

ToanDN — Thu, 07 Jul 2022 01:12:05 GMT

Not enough information. Offset based on which direction? There can be millions of points orbiting the original point with the same distance.

Re: how to offset with a instance-formula istance for a MASS form

barthbradley — Thu, 07 Jul 2022 01:59:41 GMT

Huh? I understood "hello barthbradley", but nothing else. Maybe if you post your Revit file, I'll be able to figure out what you are trying to do.

Re: how to offset with a instance-formula istance for a MASS form

heichan88 — Thu, 07 Jul 2022 05:56:24 GMT

hello @barthbradley

Please find the rvt, the purpose is a corner beam which bottom =a offset (flex formula) from the red joist (3D snapping)

Re: how to offset with a instance-formula istance for a MASS form

heichan88 — Thu, 14 Jul 2022 17:07:23 GMT

OK, I am done with generic model adaptive, though 26 ap a bit complicated