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Co-ordinate change when grouping

Started by Nick the Cabin Boy, September 22, 2022, 12:35:02 AM

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Nick the Cabin Boy

I have designed some surfaces to represent the connector blocks that I use for my wiring. All my wiring is schematic, using 1mm lines of various colours. Being a bit OCD about these things, I want the cable to line up up precisely with the terminal on the block, using snap-to-grid at 1mm.

So, let's say I have drawn a box, with the top left corner at 100,100, put some numbers on it, and grouped it. The top left co-ordinate is now 99.75, 99.75! This means that I now have to position my blocks at X+.25, Y+.25 for the terminations to line up. But this means that I can't use snap-to-grid to place them (unless I change that to .25!).

Is this supposed to happen, or is it a bug?

Nick
Geelong, Victoria, Australia
Building Pottersbridge, a fictional town a little North of London, served by a fictional Heritage Railway, in N

David

This has to do with the fact that you've probably set a line width for the box of 0.5 mm.

Once grouped, there is no longer a distinction between the box and its outline, that will extend 0.5 / 2 = 0.25mm to the left and the top (and also to the right and bottom).


David Hoogvorst. Founder and Owner of DRail Software. Creator of AnyRail.

Nick the Cabin Boy

I did have the line set to 0.5mm.

So, does that mean that I need to have a line width of 0.0 mm to retain the position? Or, I suppose, multiples of 2mm to give a integer answer for the extension calculation?

I might be tempted to ungroup one of each, then copy/paste them as required. Apart from the numbers, they were a plain rectangle with added points to represent the terminations, and I placed the cable ends over the extra points. That's one problem with grouping/saving; you lose all the points!

Cheers,

Nick
Geelong, Victoria, Australia
Building Pottersbridge, a fictional town a little North of London, served by a fictional Heritage Railway, in N

David

Yes, as soon as it's all grouped, it's just one piece (of art) with no further internal information.
If you set the line width to 0, or a multiple of 2 mm, you would indeed get the result you want.


David Hoogvorst. Founder and Owner of DRail Software. Creator of AnyRail.