Curves workbench

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drmacro
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Re: Curves workbench

Post by drmacro »

karlsinn wrote: Sat Mar 04, 2023 12:59 pm Hi,

I would like to draw a curves_line between two of the points on the BSpline (not the end points).
I somehow don't manage. When I select two points and click the button for the curves_line nothing happens.

What's my mistake?

thanks,
Karl

Code: Select all

OS: openSUSE Leap 15.4 (XFCE/xfce)
Word size of FreeCAD: 64-bit
Version: 0.21.0.31917 (Git) AppImage
Build type: Release
Branch: master
Hash: 4639283b459f9ff9093e289908cc003db8745b82
Python 3.10.9, Qt 5.15.6, Coin 4.0.0, Vtk 9.1.0, OCC 7.6.3
Locale: German/Germany (de_DE)
Installed mods: 
  * Curves 0.6.7
  * fasteners 0.4.23
Hit q

It appears the spline is still in edit mode. Hit q or double click the spline in the tree view to end edit mode.

But, then you cannot select other than the end point of the spline.

You could use, for example, the split curve tool then add vertexes to it.
Star Trek II: The Wrath of Khan: Spock: "...His pattern indicates two-dimensional thinking."
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Chris_G
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Re: Curves workbench

Post by Chris_G »

karlsinn wrote: Sat Mar 04, 2023 12:59 pm When I select two points and click the button for the curves_line nothing happens.
Select the blue line between the 2 points instead.
drmacro
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Re: Curves workbench

Post by drmacro »

Chris_G wrote: Sat Mar 04, 2023 1:14 pm
karlsinn wrote: Sat Mar 04, 2023 12:59 pm When I select two points and click the button for the curves_line nothing happens.
Select the blue line between the 2 points instead.
Hmm...I don't get it. I thought there are 2 freehand splines, each with say 3 verts. And the question was how to draw a curves_line between the middle verts of the freehand. But the Freehand is in edit mode.
Star Trek II: The Wrath of Khan: Spock: "...His pattern indicates two-dimensional thinking."
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Chris_G
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Re: Curves workbench

Post by Chris_G »

No, I think he talks about le "L" shortcut in edit mode that sets the tangents of 2 consecutive points.
drmacro
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Re: Curves workbench

Post by drmacro »

Chris_G wrote: Sat Mar 04, 2023 4:12 pm No, I think he talks about le "L" shortcut in edit mode that sets the tangents of 2 consecutive points.
Aha, I see.
Star Trek II: The Wrath of Khan: Spock: "...His pattern indicates two-dimensional thinking."
karlsinn
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Re: Curves workbench

Post by karlsinn »

Hi, it was not about the "L", I wanted a curves_line between these two points.
Splitting the Spline with the Split curve tool did the job.

thanks
karlsinn
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Re: Curves workbench

Post by karlsinn »

Hi,

next question.
I have 2 connected splines (picture 3).
Now I would like to split one of the lines (picture 2) in two parts at the point of attachment of the other spline.
When I use split_curve I can move the point where it splits through the editor (picture 1), but I need it to be exactly at the attachment point of the second spline.

How can I move the split point exactly there?

thanks,
Karl
Attachments
Bildschirmfoto_2023-03-05_21-56-50.jpg
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Bildschirmfoto_2023-03-05_21-55-44.jpg (9.61 KiB) Viewed 1233 times
Bildschirmfoto_2023-03-05_21-55-22.jpg
Bildschirmfoto_2023-03-05_21-55-22.jpg (9.13 KiB) Viewed 1233 times
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Bernard19
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Re: Curves workbench

Post by Bernard19 »

If I understand your need correctly.
You select the 2 points by holding the "Ctrl" key and you click on the "S" key.
Now the curves will be connected at the level of the point.
karlsinn
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Re: Curves workbench

Post by karlsinn »

Connecting is not what I want.
What I need is the split curve split point to be in the point where the two splines are already connected
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Chris_G
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Re: Curves workbench

Post by Chris_G »

- Select the edge you want to split in the 3D View
- Activate the Split_Curve tool
- Remove the 50% value (but leave the brackets) in the Values property
- Clic the [...] button in the Cutting Objects property
- Select the cutting edge in the 3D View + OK
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