[ Fixed ] [ Ticket #4144 ] Sketcher: Point-point-point symmetry: order of points?

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Roy_043
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[ Fixed ] [ Ticket #4144 ] Sketcher: Point-point-point symmetry: order of points?

Postby Roy_043 » Tue Sep 24, 2019 5:34 pm

If I click the tool first the required order is:
PtA-Center-PtB
If I click the tool last the required order is:
PtA-PtB-Center

Why is the point order different?
Last edited by Roy_043 on Tue May 26, 2020 7:56 am, edited 2 times in total.
openBrain
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Re: Sketcher: Point-point-point symmetry: order of points?

Postby openBrain » Tue Sep 24, 2019 5:39 pm

I can't tell you why, but it is known and has been discussed in the past. However I'm not sure any further decision/action has been taken, thus great you reopen that topic. :)
chrisb
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Re: Sketcher: Point-point-point symmetry: order of points?

Postby chrisb » Tue Sep 24, 2019 8:13 pm

A Sketcher Lecture with in-depth information is available in English, auf deutsch, en français, en español.
vocx
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Re: Sketcher: Point-point-point symmetry: order of points?

Postby vocx » Tue Sep 24, 2019 8:36 pm

openBrain wrote:
Tue Sep 24, 2019 5:39 pm
... but it is known and has been discussed in the past.
Dammit! This is what I hate about FreeCAD, people "know" things, but don't document them anywhere, Sketcher ConstrainSymmetric.
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openBrain
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Re: Sketcher: Point-point-point symmetry: order of points?

Postby openBrain » Tue Sep 24, 2019 8:44 pm

chrisb wrote:
Tue Sep 24, 2019 8:13 pm
issue #4144.
Great but could be good to poll community for the preferred order. ;)
For me, I prefer in "topological order", thus with the point of symmetry as 2nd click. ;)
chrisb
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Re: Sketcher: Point-point-point symmetry: order of points?

Postby chrisb » Tue Sep 24, 2019 9:23 pm

This order may be more convenient (and it is already available for creating symmetry with a line in the middle).
But I vote for the more systematic order where the symmetry point is selected last.
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DeepSOIC
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Re: Sketcher: Point-point-point symmetry: order of points?

Postby DeepSOIC » Tue Sep 24, 2019 10:43 pm

openBrain wrote:
Tue Sep 24, 2019 8:44 pm
Great but could be good to poll community for the preferred order.
For me, I prefer in "topological order", thus with the point of symmetry as 2nd click.
I would also prefer the "topological order", as mouse movements are shorter, thus faster.

If there is no consensus, a preference-controlled order can be a way to go. Then we'll have the same discussion on what order should be default. :P
chrisb
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Re: Sketcher: Point-point-point symmetry: order of points?

Postby chrisb » Wed Sep 25, 2019 4:41 am

DeepSOIC wrote:
Tue Sep 24, 2019 10:43 pm
If there is no consensus, a preference-controlled order can be a way to go. Then we'll have the same discussion on what order should be default. :P
No parameter on my behalf, I can live with either decision. I don't even need a majority. It shalll be what Abdullah decides.
A Sketcher Lecture with in-depth information is available in English, auf deutsch, en français, en español.
rogermhsu
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Re: [ Ticket #4144 ] Sketcher: Point-point-point symmetry: order of points?

Postby rogermhsu » Tue May 26, 2020 6:46 am

In either scenario (selecting the tool first or the geometry first), the resulting input to the software is the same (two points and a line). The most user-friendly approach would be to have the order not matter - the user selects the geometry in any order and the software intelligently sorts things out. Even if you prefer one order over another, you'd get what you want with this approach. Win, win, win. :)
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Roy_043
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Re: [ Ticket #4144 ] Sketcher: Point-point-point symmetry: order of points?

Postby Roy_043 » Tue May 26, 2020 7:34 am

rogermhsu wrote:
Tue May 26, 2020 6:46 am
two points and a line
No. The topic is about point-point-point symmetry. But there has been another discussion and even a vote about PPP symmetry.
Found it:
https://forum.freecadweb.org/viewtopic.php?f=3&t=45257
Last edited by Roy_043 on Tue May 26, 2020 7:41 am, edited 1 time in total.