Is it possible to generate a script that will capture the outermost walls of a building and generate a sketch using those lines? Something close to this is using “Convert Lines” and hitting tab, which will usually highlight more connecting lines of an area. However, this it is very inconsistent; most models I work in will only select small portions of the building.
I’m not quite sure how this could be done, as I don’t think Revit and Dynamo have tools that can understand what are considered the outermost edges (akin to Photoshop magnetic lasso).
My initial thought is to somehow select the walls farthest away from a selected point (user selects centerpoint on screen) in all directions. Please let me know if something like this can be done, or if there’s an easier way!
This script works very well! Took a bit of fiddling with packages first. Is there a way to do this without using rooms? Most of the time I make these key plans early in a project’s lifetime, so rooms may not be placed.
Placing four room separation lines (or using the property lines) and one room called “exterior” is pretty quick. From there you can pull the boundaries of the room and generate the key plans quite readily.
I’m noticing a lot of projects I work on are not typically set to “Room Bounding” and this method requires that. Will enabling this just to run the script and then disabling it change anything about what exists in the model (since this is done at a point after initial setup)?
Well I tried to pull JUST the walls (excluding the separation box I made) so it can automatically create a filled region all in one go, and this works fine on my test project.
However, in a real model it seems to pull “RevitLinkInstance” instead, which I believe means the link is nested. Are there nodes to retrieve those nested elements as “Wall” instead?
The script works, it’s more of an issue with the models yielding Filled Region loop errors. If I use the curves to draw Detail Lines, this works 100% of the time.
This is taking the centerline of all walls used in the script, it might work flawlessly if I can instead use the outermost line of walls, not sure what the best way to implement that would be.
Even feeding it curves yields an error, I’m almost positive it’s a model issue. If there’s a way to join lines that are leaving gaps at corners, I’d love to know about it! I tried some nodes I had that state they attempt they join lines, but with no success.
