how to auto insert ceiling grids to room

[BIGAL]

For david bethel Irregular rooms no probs but use a different approach you draw a polyline including arcs, isolate pline, pick start reference corner, pick upper and lower bound window then either draw grid lines or for tile insert a block/pline and array based on the 3 points picked (start point can be below and left of ref point) then just extrim and use polyline all done ! You have to work out your lowest left and upper right points for the tile size, also the offset for the tile compared to the ref corner.

 

I had to write it the hard way no extrim when I did it.

 

 

waffle slabs ! It took about 20mins now 20secs.

[David Bethel]

BigAl,

 

I used a bit of a different approach. Collected the boundry points, use U style hatches for vertical and horizontals, offset so that the minimum overall border tile is greater than 1\2 tile. My problem came in that old releases made hatches totally differently from hatches of today. So I had to make 2 conversions styles.

 

@autolisp

As far as a DCl box, I'm a command line kind of guy.

 

V3.4. Irregular shaped rooms ( tested in 2000 )

 

-David

Edited November 15, 2010 by David Bethel
Fixed bugs in 3.5

[sparkyuk]

Bigal

That a good tip, I found a scale of 189 gave me the correct tile size of 600mm its not perfect grid to fit a room but its close enough

 

David thank you

when using your ceilgrid.lsp using Autocad 2008 I find it has a problem, Using 2D once it got to room shape and select "I" it stopped working, If i select 3d it works fine is there anything you can do to correct this please

[David Bethel]

Sparkyuk

 

I think I found it.

 

I only have 2000 to test it in but it should now work in 2008 ( I hope )

 

V3.5

CEILGRID.LSP

[BIGAL]

In case some one wants to know how sparkyuk worke out a scale factor of 189 = 600mm

 

*NET,Horizontal / vertical grid

0, 0, 0, 0, 3.175

90, 0, 0, 0, 3.175

 

600/3.175 = 188.976

[sparkyuk]

David, I have just tried it in 2D and it now it will get to the very end of drawing the outline around the room and I then press return but it will not draw the grid any chance you can have another look at it please ?

 

Bigal the way I worked it out was to keep changing the number untill it scaled at 600mm I didnt do the math way to hard for me lol

[BIGAL]

A lot of the hatch patterns can be simply changed to reflect simple scale factors just need to keep your changes seperate and paste into new acad.pat etc

 

Hint a lot of the patterns have 0.125 0.375 this equates to inches 1/8 3/8 etc so pretty easy to work out a metric equivalent for tiling probably use NETTILE 0, 0, 0, 0, 100

[himal]

Thank You Very Much ,