LISP Polyline Boundary for rooms.

[smallƑish]

Hi..

Making polylines for rooms is a very time-consuming and boring task always. Any chance to get a lisp to automate the process? Before and after dwg file attached for reference.

[pendean]

1) nothing is attached.
2) BOUNDARY command not an option?
3) Are you by chance not using AutoCAD ARCHITECTURE where "room" tools are prolific and address needs for posts like you
https://www.google.com/search?q=autocad+architcture+room+outline
https://www.google.com/search?q=autocad+architcture+room+calcs
https://www.google.com/search?q=autocad+architcture+room+tools

[LDShaw]

I use a couple different ones. I use lee macs area label http://www.lee-mac.com/arealabel.html
OR I use this one. Note for the pla you may have to change a few things. (Like default layer text style and such.)

[Kent1Cooper]

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@pendean wrote:
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2) BOUNDARY command not an option?

....

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BOUNDARY [or BPOLY] is not a bad option, if you're not working with an overlay program that is made to do this kind of thing.  But it needs something like having door-head and window-head Lines drawn across openings, and Layers of things that impinge into the room area [doors that swing in, window sills] turned off.  The Layer control part can be automated.  And if windows and doors are Blocks, the overhead Lines can be built into them -- if reflected ceiling plans are in the picture, those kinds of Lines should be there anyway.

[pendean]

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@Kent1Cooper wrote:

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...But it needs something like having door-head and window-head Lines drawn across openings, and Layers of things that impinge into the room area [doors that swing in, window sills] turned off. ...

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that depends if the OP shares more information, yes?

[smallƑish]

Post updated with Attachment. Kindly apologize my mistake 

[Kent1Cooper]

I expect it will not be possible to automate that, largely because there is no differentiation between the various kinds of drawing objects and things they represent, with everything on the same Layer, some walls and furniture are drawn as Polylines but some as Lines, etc.  Here, green are Lines, red are Polylines, yellow are Arcs:

Also, whether there's any hope of automating it or it must be done manually, you need to decide where the outline should really go in relation to the perimeter of a room.  For example, you have it going to at least three different places within exterior walls:

to what appears to be a window sill, and what may be the wall surface, and even the face of the glass in the windows.  And vertically, some are at the face of the wall, some inside it.  Surely whatever the purpose of the outlines, they should be consistent about what defines the area they enclose.