breaking a drawing in half 2

[bot1357]

Hi all

I have a drawing of a ship and the deck I am working on is split into 5 zones. I want to put zones 1,2 and 3 on one drawing and 4 & 5 on a another.

I want to draw a line right through the deck between zones 3 & 4 and bascially just seperate them apart. Is there a command that does this? It could save me a lot of time.

Regards
Danny

 

[lpseifert]

Try using paperspace viewports, one for each zone you want.

____________________
Acad2005, Terramodel

 

[bot1357]

Paperspace is not an option I am afraid....it would be so easy if a command existed that would let me draw a straight line between zones and then use that line as the base point to seperate the drawing in half. Thanks for your reply though.

Danny

 

[Exxit]

Hi,

I think wants to divide one *.dwg into two *.dwg. It's IMHO not possible, only workarounds:

If You don't want to edit the drawing, You can import the big *.dwg as a block or xref and then "_xclip" it.

If You have to edit the objects, save as a new *.dwg -> draw a rectangle, what You still want to retain -> erase the rest -> "extrim" from the Express Tools for the objects which subtend the rectangle -> now You have to edit the hatches, dims, text blocks, because extrim don't trim these objects.

I don't know a better way, maybe annother user knows more...

Lothar

ADT 2004
ACAD 2002

 

[zdas04]

Could you elaborate on why "Paperspace is not an option". Paperspace was created for problems exactly like yours. I often draw a whole project in model space and then create however many layouts it takes to show the details I need to show. All are consistent with each other and a change to the model space cascades to all layouts that include it.

Every other solution you come up with will result in disconnected data that will get out of sync at some time.

David

 

[bot1357]

David,

Not sure if what I am going to say about paperspace is true here!

With paperspace you cannot get a 'true scale' these layouts need to be at a scale 1:150 @A0. How do you do this with paperspace?

Regards
Danny

 

[lpseifert]

While in your paperspace viewport> zoom > center (pick center) > at the "Magnification or height:" prompt type 1/150xp. You can size the viewport to include the "zone" you need. When you plot from PS at 1:1 the entities will scale at 1:150.

____________________
Acad2005, Terramodel

 

[zdas04]

Yeah, what he said. The way I do it sounds dumb after that explaination and I'll keep it to myself.

David

 

[cfee]

Ipseifert's tip is right on target.
C.Fee

 

[Exxit]

ok Ladies 'n' Gentlemen,
a star for lpseifert, because he understand danny's question. I didn't...
No ACAD-version, not one word of plotting, printing, etc,pp...
I have to practice my english...

L.

ADT 2004
ACAD 2002

 

[IFRs]

This is a distant second to using PSpace:

You can draw two lines, use them to trim all the entities on both sides, save the drawing to ANOTHER name. Repeat. Then use XRef to "stitch" them back together again in a master drawing.

Admittedly, a very distant second to PSpace.

 

[smcadman]

Not sure which version you are in but in ACAD 2000 and up there is a "viewports" toolbar. Just double-click the viewport you want to work in, and then choose an xp scale from the drop-down list. If you want a custom size, then enter "1:150" for example.

FYI, you might also want to try the other buttons on the viewports toolbar. There is a "Polygonal Viewport" that lets you draw a closed polygon for those funky shapes that you never knew you needed. Another button to try out is the "Convert Object to Viewport" which is perfect for drawing a circle and picking it for a detail view.

Flores

 

[MikeHalloran]

Paperspace won't solve the file size problem.

Yachts, and I imagine ships also, are often designed in true 3D, including _all_ the ship systems, e.g., structures, fluid systems, propulsion systems, cabling, furnishings, etc. Each system is usually confined to its own set of layers, but it's important that all the entitites in a zone actually be present in the drawing files as distributed, because they're all competing for the same limited amount of actual space on the boat. The resulting files are damn big, even if, as is common, the boat is divided into zones.

E.g., if you're doing something that affects the engine room, you will typically receive a 3D model that includes _everything_ that resides in, or passes through, the engine room, but the model is usually truncated at the fore and aft bulkheads of the e/r, and you may have no idea of what the finished boat will look like, or even how big it is.

The models are built on a world coordinate system that is global to the boat, so they could be superimposed, xrefed or inserted, but most of the participants don't have enough computer or enough drive space to manipulate the whole boat with all systems present. I'm not sure that anyone does.

I suspect that the structural guys work out the bare hull shell and some of the structure, then split it up for everyone to work on independently.

To answer the OP, sort of, if it's a 2D drawing, the techniques used by flatlanders will work okay. If it's true (ACIS / CSG) 3D, you can define cutting planes and use the SPLIT command, then save it as two different drawings and erase what you don't need. Just don't mess with the WCS. If it's 3D with surfaces, SPLIT won't work, and you'll have to reconstruct or trim the surfaces to the split planes, which is a whole lot easier in Rhino than in AutoCAD.



Mike Halloran
Pembroke Pines, FL, USA