topic Re: MvPart Hatching in AutoCAD MEP Forum

MvPart Hatching

Anonymous — Tue, 02 Aug 2011 11:58:36 GMT

I am trying to create an FCU with hatch but the hatching does not follow the unit outline instead it only creates a rectangular hatch (please see attached). Any help will be much appreciated.

Re: MvPart Hatching

Martin__Schmid — Thu, 04 Aug 2011 15:52:57 GMT

What version are you using? I thought that perhaps this may be due to performance reasons, however, I tried a variety of 'complex' MvParts (i.e., "380-500 Ton Two-Stage Absorption Chiller") and they all hatched as expected in 2010-2012.

Can you upload the part in question?

Re: MvPart Hatching

Anonymous — Thu, 04 Aug 2011 16:00:05 GMT

Thanks for the reply.

Please see attached 2 options I made and these was all created using block-based and the display properties is 2-line. I am using MEP 2012.

Re: MvPart Hatching

Martin__Schmid — Thu, 04 Aug 2011 16:05:00 GMT

I meant the actual .dwg file... I can't troubleshoot a .bmp

Re: MvPart Hatching

Anonymous — Thu, 04 Aug 2011 16:20:36 GMT

Please see attached dwg.

Re: MvPart Hatching

Martin__Schmid — Thu, 04 Aug 2011 16:28:11 GMT

Looks like you need to define the Region(s) in the top view block... see attached.

Re: MvPart Hatching

Anonymous — Fri, 05 Aug 2011 09:37:03 GMT

Does the hatch automatically updated when you created a region on the top view block?

I tried it but still doesnt work ( not really sure how you did it).

Re: MvPart Hatching

Martin__Schmid — Fri, 05 Aug 2011 12:09:21 GMT

You probably need to force an update with OBJRELUPDATE for existing instances of the Part... new ones should hatch properly.

See: http://screencast.com/t/kqI25yu6

Re: MvPart Hatching

Anonymous — Fri, 05 Aug 2011 14:06:52 GMT

Unfortunately it does work smoothly on my system as you did. I have to close and open my drawing then do the command before it finally regenerate.

The model now looks fine but if you can trim the 3 nos. triangular hatch on the tip of the pipework would be great.

Re: MvPart Hatching

Martin__Schmid — Fri, 05 Aug 2011 14:24:23 GMT

I suspect those trianges is because it is expecting a closed geometry, and it doesn't know what to do with the lines that extend out of the pipe connections. Shortening those lines should do the trick:

http://screencast.com/t/UHiflj8aHe

Re: MvPart Hatching

Anonymous — Fri, 05 Aug 2011 14:29:26 GMT

If possible I would prefer to maintain those extended lines but if there is no other solution then thats ok.