math tools like union and intersect?

iti · **Joined:** Jun 22, 2020 **Posts:** 98

GIMP Version: Newest
Operating System: Windows
GIMP Experience: Basic Level

Does gimp have those math tools like union, and intersect? I have been searching and not finding anything. I thought i watched a video and he showed them, but cant find it now.

rich2005 · **Joined:** Mar 04, 2011 **Posts:** 2615

The selection tools have some of those as modes. replace - add - subtract - intersect.

Attachment:

mode.jpg [ 18.95 KiB | Viewed 4532 times ]

A 30 second demo https://i.imgur.com/w4s4AqE.mp4

iti · **Joined:** Jun 22, 2020 **Posts:** 98

rich2005 wrote:

The selection tools have some of those as modes. replace - add - subtract - intersect.

Attachment:

mode.jpg

A 30 second demo https://i.imgur.com/w4s4AqE.mp4

thank you, i was hoping for something more advanced like all the other graphic programs. Even the free one for my cutter has the tools, just set up the layers and click intersection, etc. hmm, lol wonder if i can port them to that program. lol.

rich2005 · **Joined:** Mar 04, 2011 **Posts:** 2615

Sounds like "all the other graphic programs" are vector applications. Perhaps Gimp is not the tool to use.

iti · **Joined:** Jun 22, 2020 **Posts:** 98

rich2005 wrote:

Sounds like "all the other graphic programs" are vector applications. Perhaps Gimp is not the tool to use.

not true, but thanks. lol. The subroutines are there. Just not coded for easy manipulations.

Blighty II · **Joined:** Sep 23, 2016 **Posts:** 317

iti wrote:

Even the free one for my cutter has the tools, ...

I suspect your cutter uses vectors.

Can your cutter use .svg files? If it can, use Inkscape. It has those tools.
(Inkscape is a vector editor, Gimp is a bitmap editor.)

ofnuts · **Joined:** Oct 25, 2010 **Posts:** 4812

iti wrote:

rich2005 wrote:

Sounds like "all the other graphic programs" are vector applications. Perhaps Gimp is not the tool to use.

not true, but thanks. lol. The subroutines are there. Just not coded for easy manipulations.

They are there and can be used. If you have a channel/mask you can right click it and combine it with the selection using replace/add/subtract/intersect operations. There are also available in the script-fu/python-fu APIs.

However, "union/difference" assumes boolean while a channel value is a number, which is why the operations are add/subtract.

iti · **Joined:** Jun 22, 2020 **Posts:** 98

Blighty II wrote:

iti wrote:

Even the free one for my cutter has the tools, ...

I suspect your cutter uses vectors.

Can your cutter use .svg files? If it can, use Inkscape. It has those tools.
(Inkscape is a vector editor, Gimp is a bitmap editor.)

it doesnt matter, the routines are there, but the code is not. simple as that, vector of bitmap does not matter.