I'm assuming you move the object with precion using for instance the move dialog.
I can't reproduce that. When I do as you described the object is at the original place again afterwards. No snapping.
Thanks for the reply Monika
I did not get your answer properly, could you please me indetail how I can get it.
Thanks and regards
I moved that object using Object > Transform > Move (or doubleclicking the Select tool)
After moving it 50 mm to the left, then to the right again, it got exactly to where it was before. No error.
How did you move it?
i use to move with using preference tool (command+k) give 50mm of Keyboard Increment. Then it is giving problem.
Actually in my openion it doesn't matter that which way we are moving. I do not get, why it is giving problem when I move with preference tool (command+k).
If you know anything about this, please share with me...
Thanks and regards
I see what you mean. You enter an exact amount in prefs and move the object using the arrow keys.
Looks like Illy doesn't calculate it correctly (I entered 1 mm, it actually moved 1,0048 mm. But not regularly - it was OK in some cases, in others it wasn't).
I've never used the arrow keys for exact positioning.
still i am confuse why in some cases it is not correct. it is giving error...
do you have any idea..!!!
I believe Illustrator uses points as its measurement system. What you're seeing is probably Illustrator's "rounding" of the values as it converts the millimeters to points and then back again.
Thanks for the reply.
continue to your message..., then why it is not happening when the object is in middle of artboard. The problem is happening when the object is near to artboard borders.
So I am really confused, why it is happening...
Here is some information from an old forum post by John Slate (it's disappeared from forum records, so any spelling errors are mine):
John Slate 7:12pm Apr 30. 05 PST (#4 of 7) Edited, 30-Apr-2005 ,t 07,14pm
It boils down to the fact that Illustrator's internal measurement is in points (in 2048 parts as I said in the old post).
So if you enter 30mm, that equals 85.03937007873 points. which would round to 85.0394 points in the Illy transform palette if that was one of the discreet parts of a point that Illy deals with.
But it is not.
The closest Illustrator division to this is 85.03955078125 points. which will round to 85.0396 points.
As a matter of fact if you enter 85.0394 points in the transform palette for the size of an object it will immediately switch to 85.0396 points.
The intemal measurement of 85.03955078125 points equals 30.000063747833 millimeters which rounds to 30.0001. so it all makes perfect sense.
...notice that if you click the artboard with the rectangle tool while yoor prefs are set to mm, and type in 30mm square. you end up with 30.0001wide X 29.9999high. I understand the 30.0001 but do not understand the 29.9999. The rounding is off.
Perhaps it is related to the fact that if you set your preferences to points and create a 100x100 point box in Illy and then start moving it around on the artboard using the selection tool, eventually the size of it changes by one Illy-click of .0005 points. or 100.0005pts or 99.9995pts. Sometimes one dimension changes and sometimes both change and there seems to be no rhyme or reason to the changes, unless it relates to the place on the artboard that you drop the object on each move as it relates to the internal grid. Sometimes, in moving stuff about it changes even another click, so that 100x100 box becomes 100.001 in a dimension.
But in the final analysis, worrying about this degree of accuracy is an exercise in futility.
Trust me when I say that you need not worry about the rounding of measurements in Illy when that degree of accuracy far exceeds the smallest division found on even the highest resolution printing device.