I need a LISP that creates multiple boundary polylines around each room

[Anonymous]

Hi All,

So i need a lisp routine created which allows me to select an entire drawing and it create polylines around every separate boundary of the selection on the current layer.

basically every drawing i receive, i need to polyline each individual room, open space area, corridor etc. it is very time consuming and was wondering if anyone smart enough can create a quicker way?

Thanks

[ArchD]

If you isolate a layer, would LINEWORKSHRINKWRAP work for what you need?

[Anonymous]

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@ArchD wrote:

If you isolate a layer, would LINEWORKSHRINKWRAP work for what you need?

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comes up with unknown command? is it an app i need to load in?

[ArchD]

My apologies, apparently that is a Civil 3D specific command.

[ArchD]

http://www.lee-mac.com/outlineobjects.html

Give this a shot. This guy makes some amazing lisps. Browse his site, you might find some to help you out on daily tasks other than this particular situation.

[pendean]

Are you trying to create boundaries on the fly in a DWG file for a 3rd party FM software? Or Lease SF Calcs?
What exact variant and year version of AutoCAD are you using? Plain AutoCAD doesn't know what a "room" is for example from an exploded Toilet block. No freebie LISP is going to do it correctly either.

[Kent1Cooper]

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@Anonymous wrote:

... to select an entire drawing and it create polylines around every separate boundary of the selection on the current layer.  basically every drawing i receive, i need to polyline each individual room, open space area, corridor etc. ....

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I'm picturing that in order to do this in something like a Floor Plan, there would need to be Lines [or Polylines, or whatever] representing the wall surfaces of the rooms/areas/corridors, and  Lines crossing door and window openings [maybe window sill  Lines would do if you don't draw projecting  sills].  Presumably such things would not  all be on "the current layer," nor on the same Layer as each other, whether current or not.  So I imagine having a wall Layer and a door/window-head Layer [also useful for a Reflected Ceiling Plan], and using something like LAYISO to have only those Layers on [not doors with swings, not plumbing fixtures, not room names, etc.], and then there might be a way to approach automating a collective Boundary command.  What's your Layering scheme like?  Can you post a simplified sample drawing?

[john.uhden]

He may need to draw some lines to "close" doors and windows, but that's better than tracing around each room.

One idea that just occurred to me is that maybe there's a label in each room on a certain layer that can be used as the pick point for the automated BOUNDARY commands.