Up-side down dimensions

Offline Lincoln Chun Tue, Feb 9 2010 10:22 PM

Hello,

Could someone please look at the attached file. Some of the dimensions are up-side down. When I rotate them 180 degrees about their mid-point they look okay. Then I save the file and they revert back to being up-side down. Is there a way to make them stay right-way up short of dropping them to elements? I think it has something to do with the ACS orientation. (Does anyone know how to permanently rotate the ACS in a DWG file? I've never been able to do that).Thanks.

Lincoln

DIM-TEST2.dwg

Offline Gerd Eisenacher Thu, Feb 11 2010 11:37 AM
The orientation of the Dimension text is depending on the VIEW rotation the moment you place the dimension. So if your view is rotated upside down the dimension is oriented that way.

To change the orientation you first rotate the a view the way you like and then change the dimensions to be oriented according to this view.

To rotate the view: (maybe your view 2 or e.g through the "rotate view points" keyin> Follow the messages.

Then Select the dimensions you like to change (or Ctrl+A for ALL)

Then keyin "change dimension view 3" (where the number is the view number)

See also: http://communities.bentley.com/Communities/Other_Communities/AskInga/w/AskInga/those-flipping-dimensions_2100_.aspx

In DWG you only can define a ACS (Utilities>Auxiliary Coordinates) This is available when you come back into the drawing you can call it from that list. Wjhen you Save As ... DGN you can File>Save Settings and it will remember the active ACS when you come back.

Be aware that the ACS is a differnt coordinate system as the design origin. (keyins: ACTIVE ORIGIN or GO=) This is the coordinate system that is oriented towards the "design cube" - that is the whole space you can use to draw in. You can move it but not rotate it against the design cube. You can define several ACS in comparison that can be moved and rotated wherever you like Check the help for more about the active origin.

Regards, Gerd
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Offline Lincoln Chun Thu, Feb 11 2010 11:41 PM in reply to Gerd Eisenacher
Thanks for the reply Gerd. The 'change dimension view' keyin worked fine.

With regard to rotating the ACS in a DWG file, in Autocad there is a method to rotate the world ACS to align with an element or view.It allows you to set the ACS to a view and it stays like that. Is there an equivalent in Microstation?:

keyin SNAPANG, then data 2 points to define orthogonal in the view

keyin UCS, then keyin 3, then data 3 points to define the 0,0,0 and +x,0,0 and 0,+y,0 (you may need a construction line from 0,0,0 and lines from 0,0,0 in the X direction and one from 0,0,0 in the Y direction to avoid keying in the points)

keyin SNAPANG again and 2 data points to define orthogonal in the view again

save the file and the world UCS/ACS is moved permanently. Refer file attached I modified in Autocad.

I've tried all the ACS commands in Microstation, but they are not permanent.

Regards,

Lincoln
DIM-TEST2-ACS rotated.dwg
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Offline Gerd Eisenacher Fri, Feb 12 2010 12:00 AM in reply to Lincoln Chun
Yes that sounds the same as in MicroStation. But while the ACS is stored. The Active ACS is not kept with the DWG.

The same commands in a DGN are filed though in MicroStation. Yet not in a DWG .

If that is the case otherwise working in acad I think you need to check for this through a Service Ticket.

I do not have have acad to check against.

Regards, Gerd

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Offline Lincoln Chun Fri, Feb 12 2010 5:33 AM

Thanks again Gerd,

I will lodge a change request.

Regards,

Lincoln
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