How to Use Propagate Corner in BricsCAD BIM

Quick answer: BIMPROPAGATECORNER propagates details connected to three planar base solids meeting at a corner, exactly the kind of node BIMPROPAGATEPLANAR, covered on this hub’s Propagate Planar page, can’t correctly handle on its own.

Setting Up the Three Planar Connections

Starting point: four exterior walls, five interior walls, and a floor slab, all already assigned a composition. Before using BIMPROPAGATECORNER, connect the three planar connection types separately first, following the detailed procedure on this hub’s Propagate Planar page: exterior wall to floor slab, exterior wall to interior wall, and interior wall to floor slab.

The nodes where an exterior wall, an interior wall, and the floor slab all come together at once can’t be correctly propagated with BIMPROPAGATEPLANAR alone, this is exactly the situation BIMPROPAGATECORNER exists to solve.

Propagating the Corner

1. Launch BIMPROPAGATECORNER. You’re prompted to select at least three planar reference solids forming a 3D corner.
2. Select the exterior wall, the interior wall, and the floor slab.
3. Press Enter to accept.
4. You’re prompted to optionally select detail objects, extra solids like an insulation block, to copy along with the corner detail. Press Enter whether or not you have any to add.
5. The volume to propagate is encased in a purple box. You’re prompted to accept: Yes, No, Inflate first, Save detail, or save detail to Library.
6. Press Enter to accept. Worth noting: BIMPROPAGATECORNER always shows a full 3D volume here, rather than the 2D section slice used by some other Propagate variants.
7. BIMPROPAGATECORNER scans the entire drawing for similar locations; the view zooms out to show every possible location, each highlighted with a widget marked by a green checkmark if it’ll be applied. You’re prompted to choose the next action: Apply all or Cancel, a simpler confirmation than the individual widget-toggling available in some other Propagate variants.
8. Press Enter to complete the command; every corner node where the exterior wall, interior wall, and floor slab meet should now propagate correctly.

Frequently Asked Questions

Why can’t I just use BIMPROPAGATEPLANAR for a three-wall-and-slab corner node? It’s specifically designed for two-solid planar connections; nodes where three planar solids meet at once need BIMPROPAGATECORNER instead.

Does BIMPROPAGATECORNER show a 2D section or a full 3D volume for the detail? A full 3D volume, unlike some other Propagate variants that work from a 2D section slice.

Can I toggle individual corner suggestions on or off, or only apply all of them at once? This procedure’s final prompt is a simpler Apply all or Cancel choice, rather than the individual widget-by-widget toggling available elsewhere in Propagate.

Do I need to set up the three planar connections in any particular order first? The example covers exterior wall to floor slab, exterior wall to interior wall, and interior wall to floor slab, but the key requirement is having all three planar connections in place before running BIMPROPAGATECORNER.