Topic: Drawing with strange crosshair rotation

[alanjt]

Have you done an Audit?

Yes, but what might that do?

[Rob...]

I'm missing something here. I thought it was straightened with DView/TWist. Is that not working for you?

[alanjt]

I'm missing something here. I thought it was straightened with DView/TWist. Is that not working for you?

No. When I check DVIEW twist, it displays as zero. I never get the "3.09" twist. Nothing has been resolved on my end.

Would one of you mind saving the drawing (2011 format) and posting the drawing back so I can see?

[CAB]

Have you done an Audit?

Yes, but what might that do?

If something was broken I thought it may allow you to fix it.

[alanjt]

Have you done an Audit?

Yes, but what might that do?

If something was broken I thought it may allow you to fix it.

No such luck.

[Rob...]

This is after changin DVIEWTWIST to zero.

[Lee Mac]

I'm missing something here. I thought it was straightened with DView/TWist. Is that not working for you?

You can straighten the crosshairs with DVIEW/TWist, however, when setting the UCS to World, the WCS axes will be shifted in the opposite direction by the same amount (3.09 degrees); straightening the WCS axes will set VIEWTWIST back to 3.09.... and around we go again 

[alanjt]

I'm missing something here. I thought it was straightened with DView/TWist. Is that not working for you?

You can straighten the crosshairs with DVIEW/TWist, however, when setting the UCS to World, the WCS axes will be shifted in the opposite direction by the same amount (3.09 degrees); straightening the WCS axes will set VIEWTWIST back to 3.09.... and around we go again 

I'm still beyond perplexed as to why I can't see the 3.09 value. So odd.

[Rob...]

That's not what is happening here, using ACADMEP 2011. The original file has UCS already set to World. DView changes it to be aligned with view. Quite odd that it works here.

[alanjt]

That's not what is happening here, using ACADMEP 2011. The original file has UCS already set to World. DView changes it to be aligned with view. Quite odd that it works here.

Yes, but is your viewcube, ucs icon correct (see Lee's posted image)? Even when I open the drawing you posted, it looks just as the original I posted does.

[Rob...]

I now see. I had viewcube turned off for 2D. Turned it back on and while the UCS is aligned to the view, the viewcube is skewed by probably the 3.09.

[Jeff_M]

The GEOGRAPHICLOCATION north direction is not at 0.

[alanjt]

The GEOGRAPHICLOCATION north direction is not at 0.

Fantastic. I wonder if newer versions of cad (or nonCivil3d) see that change in the viewtwist.

Does this have any adverse effect on the drawing if I just set it back to zero?

Thank you, Jeff!

[Jeff_M]

I haven't seen anything bad occur due to this issue. I do know that the initial release of C3D2013 would set this strange rotation in every drawing I opened from an earlier version which had a Coordinate System set. I think they have fixed that, but it was definitely irritating. I think that to keep it from reoccurring I had to remove the CS and/or clear the GEO location then reset the CS.

[alanjt]

I haven't seen anything bad occur due to this issue. I do know that the initial release of C3D2013 would set this strange rotation in every drawing I opened from an earlier version which had a Coordinate System set. I think they have fixed that, but it was definitely irritating. I think that to keep it from reoccurring I had to remove the CS and/or clear the GEO location then reset the CS.

What a pain. Is there an easy way to access this database with a bit of code?