Adding Recommendations to the Calculations Guide: Pixel-Scaling Fix and Rectangle Select Tool Scaling

[KLOL506]

That'd add extra work for me, as a user of GIMP. When using shift to draw a line with the paint tool, it shows the co-ordinates of one end of the line, the length of the line, and the angle of the line. I just use that instead of deducing the length from co-ordinates.

Don't think we need to go that far TBF.

Just use good quality pictures and draw the lines without your hand quaking all over the place.

 

[Jasonsith]

Thing is:

Coordinates still give a good start for determining distances.
In fact, laying down good coordinates and relevant formulae are even more important than how think in pixels to use for a line or curve.

Lines are simple. Pythagoras theorem.

If curves are used, then we can still list and use some geometry math to get distances.

 

[IdiosyncraticLawyer]

Bump.

 

[Antvasima]

What, if anything, is left to do here?

 

[Agnaa]

We could add the text Idiosyncratic recommended above:

It is advisable to use 1 pixel thick lines to minimize measurement error caused by line thickness, although in large or high-resolution scans where thin lines are hard to see, slightly thicker lines can be used as long as the thickness remains significantly smaller than the line length to maintain a low relative error. Sometimes, it can be helpful to add a small crosshair to lock onto coordinates.

To the Calculation Guide page.

But there were four people who disagreed with a suggestion of 1 pixel, and I'm not sure whether they'd be okay with this flexible recommendation of "slightly thicker lines in high-resolution scans are okay".

There still hasn't been much talk about the diagonal lines stuff.

 

[Aguywhodoesthings]

I personally use 1 pixel lines then enlarge them after i get the value to make them easier to see

 

[Antvasima]

Well, I am afraid that I am not able to help you out properly here.

 

[IdiosyncraticLawyer]

@Agnaa @Antvasima @Aguywhodoesthings

 

[IdiosyncraticLawyer]

@Agnaa @Antvasima @Aguywhodoesthings

@Agnaa @Antvasima @Aguywhodoesthings Please help conclude this.

 

[Antvasima]

We could add the text Idiosyncratic recommended above:

To the Calculation Guide page.

But there were four people who disagreed with a suggestion of 1 pixel, and I'm not sure whether they'd be okay with this flexible recommendation of "slightly thicker lines in high-resolution scans are okay".

There still hasn't been much talk about the diagonal lines stuff.

It seems like this thread has mostly been rejected then, unless I misunderstand.

 

[IdiosyncraticLawyer]

It seems like this thread has mostly been rejected then, unless I misunderstand.

Given how this thread seems rejected and nobody wants to continue it, should we close it?

 

[IdiosyncraticLawyer]

Given how this thread seems rejected and nobody wants to continue it, should we close it?

@Antvasima

 

[Antvasima]

I think so, yes. I will do so.