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For example, I draw the property line and need to keep a 5m distance to the street and a 3m distance to all other lines, so I use the offset tool twice and draw the outline of the building using the edges and the intersections of the offset-lines. When I return at a later point the distance has shifted by a tiny fraction to something like 4.99974m instead of 5m.
Not a huge difference but it can add up if it keeps happening and I keep using the outline as a frame of reference.
So, is there any way to prevent it (aside from using parametric constraints on EVERYTHING) and if not, how do you deal with it?
This can happen if you are far from (0,0).
Hi,
In addition of what mentioned in the previous post .. you can from UNITS command change the Precision to 0,00 .
Imad Habash
@leander.gaeb wrote:
So I can just not stray to far from base 0,0?
You can stray pretty far, within reasonable sizes of real things, before it starts to become a problem. But we've seen people with similar problems post drawings with coordinates that were farther from the original than the diameter of the solar system -- I remember seeing values in the range of 10-to-the-14th-power.... How far away are you?
Lower xyz than +/- 1.000.000 is perfect.
(Note, they are talking about 0,0 wcs - doesn't matter your current ucs)
--
My question is another one: Your sample with length 5.
Are you sure that the line was ever
5 long?
I guess the line wasn't 5 long and you didn't test it directly.
?
Another case: Between creation and your length check (4.99..).
Wasn't there a scaling since you created the line.?
Sebastian
@leander.gaeb wrote:So, is there any way to prevent it (aside from using parametric constraints on EVERYTHING) and if not, how do you deal with it?
You seem to be under the impression that the program is not accurate. That's very far from the truth. Something is happening on your end to cause this. I thought it might be the distance from (0,0) but that doesn't appear to be the case.
Please provide a file and the steps you take to reproduce this problem.
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