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Co-ordinates of objects changing when grouped.

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Alex McMurray
Co-ordinates of objects changing when grouped.
on Sep 15, 2012 at 1:02:26 am

Hi all.

Take this as a noobie question.
I am building a small factory in C4d v12.
I am using the cm values.

At the corners and at various points along the front and side walls, I have concrete pillars.
One original at the (z=0-x=0) co-ordinates, then instances at (z-x),(0 - 15000 cm), (11000 - 15000 cm), (22000 cm - 15000 cm), (33000 cm - 15000 cm) etc as examples.

After grouping, using the examples above, the co-ordinates for the z direction have changed, 0 is now -15952,7 cm, the 11000 co-ordinate is now -5502.7 cm and so on.
It appears a -16000 value has been added to the x direction position.
There does not appear to be any change in the x position co-ordinates.

When I take a pillar out of the grouping, the position goes back to what is should be.

I am perplexed, is it something I am doing, or something I am not doing when grouping various objects.

Any help on this would be appreciated.

Alex.


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Darby Edelen
Re: Co-ordinates of objects changing when grouped.
on Sep 15, 2012 at 7:31:24 pm

Are you looking at local coordinates? These represent the coordinates relative to the parent object. When you create a group all of the objects in that group become children of a null. You can change to view global coordinates instead. I think you could also move your parent object's (the null's) axis to the world origin [0,0,0].

Darby Edelen


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Alex McMurray
Re: Co-ordinates of objects changing when grouped.
on Sep 15, 2012 at 8:42:31 pm

Yes, that was it, thank you.
Changed them to World co-ordinates.

Unfortunately found another problem, which was mine and nothing to do with C4d, been using 1000 cm per metre instead of 100, now I've got to re-scale, sigh.

Alex.


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Darby Edelen
Re: Co-ordinates of objects changing when grouped.
on Sep 16, 2012 at 5:55:15 am

With such large numbers you could use meters and avoid some of those issues. C4D includes a preference to automatically convert units so that if you are viewing in cm and you type in 1.5m it will be converted to 150cm.

Darby Edelen


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Alex McMurray
Re: Co-ordinates of objects changing when grouped.
on Sep 16, 2012 at 7:35:57 pm

I was using that format (1 unit = 1 mt) in the previous modeller, and was making just as many errors, when trying to model in the cm range.
It's more a matter of old age catching up, and not paying attention.
Just with I had found Cinema 4d earlier.

Alex


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