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Thank you for your constructive advice.

I have pasted an image into GIMP and now would like to superimpose a TEMPORARY grid of lines
to assist me in positioning shapes over that image.

It isn't clear how to do this.
1.
View > Show Grid

2.
Image > Configure Grid

3.
View > Snap to Grid

A word of caution:
Bitmap editors (Gimp included) work in pixels. Whole pixels only, not fractions of a pixel.
If your setup is in inches small rounding errors can occur as things are converted to the nearest whole pixel.
The dpi you have specified is used to do the conversion.
(01-08-2020, 04:52 PM)Blighty Wrote: [ -> ]1.
View > Show Grid

2.
Image > Configure Grid

3.
View > Snap to Grid

A word of caution:
Bitmap editors (Gimp included) work in pixels. Whole pixels only, not fractions of a pixel.
If your setup is in inches small rounding errors can occur as things are converted to the nearest whole pixel.
The dpi you have specified is used to do the conversion.
Thank you for your kindness.  I hate to be stupid, but are you saying that step three will erase the temporary grid?
I only need it there to position some shapes, then to go away.

The word of caution is welcome, but not understood. I think in things I understand and know.
I understand and know inches.   I do not understand pixels.

Are you saying after I spend hours drawing shapes onto my background, it's going to print out all messed up 
because I used an inches ruler instead of a pixels ruler?

(01-08-2020, 05:16 PM)Ofnuts Wrote: [ -> ]https://docs.gimp.org/en/gimp-concepts-i...uides.html

Thank you to you, and all who are helping.

Before trying GIMP I was using a supposedly free program NCH DrawPad.
Something I noticed was that it was literally impossible to use the mouse to get a shape
in the right position within a grid.

In my original post, I have a link that shows the game board I am trying to create.
If anyone can suggest the best way to create it, please tell me.

Drawpad turned out to be a lie.  It is not free.  You get halfway through a project
and suddenly it pops up saying that to continue, you have to pay.
I would call that:

Bait and Switch
Fraud
Extortion
Criminal

I am Grateful for GIMP.....but I have to admit, it's DAUNTING.
For example, the steps needed to be taken to draw a ring and fill it with color......so many steps mean
so many ways things could go wrong.

Is there a version of GIMP for normal people?
By that I mean, none of this is even remotely intuitive.
To me, everything should be in one place, and everything should be Alphabetical.

I don't know software.  I know the alphabet. That is in muscle memory.

I know what a ring looks like.
Why not a box with a ring in it.  I click on the box and then my mouse will put a ring on the screen that I can
drag into the size I need. Simple.