Boolean functions not working

[Oldcedar (Ken Barnes)]

I am having trouble with Boolean subtract and all other Boolean functions.
I open a new page, draw 2 overlapping circles, select one, then the other, and when I click on the subtract nothing happens.
test.lbrn2 (13.8 KB)
Any suggestions would be much appreciated

[berainlb (PY)]

@Oldcedar

select one, then the other,

Are you doing an additive selection to the second? They both need to be selected for the boolean to work. Two and only two objects must be in the selection.

[Oldcedar (Ken Barnes)]

Thanks so much.
Somehow I missed the fact that instead of selecting one then the other I needed to select the first and second ones together.

[Rick (Technical Evangelist)]

Did a little searching for the wording I have shared in the past. This might help…

@Rick

LightBurn uses the following concept for selection: “Do this, to that.”

In most cases, I’m going to do a thing to a thing, Subtract this shape from that shape. Move this to there. Align this to that. Array this…that many times, and so on. Please don’t mind if you ever hear me mumbling these phrases to myself while doing my work. It helps me remember.

[berainlb (PY)]

@Rick, I like this mnemonic but I’m curious since I think about this in reverse. I’m more “To that, do this”. So for a boolean difference I’d first select the shape from which you want to subract, and then the shape with which you’re subtracting.

I’m questioning myself now or perhaps LightBurn has a configurable selection setting that I’ve missed?

[Rick (Technical Evangelist)]

From further down that post…

Alignment tool in latest update

It’s A minus B. First shape minus second shape, just as you’d write it in math.

Yes, I may have stated that backwards. Oz wouldn’t, so added here

[berainlb (PY)]

Ah… Thank you. Did not read through the whole topic.