How to use the 3-Point Arc in Profile editing

Hello,
Does anyone knows how to use the 3-Point Arc command when editing a Profile?
It says to first select three vertices. When I do, no arc is created.
Thanks

Comments

  • edited October 2025

    @RaphaëlVouilloz
    see if this helps:

    you can use the object as IfcArbitraryClosedProfileDef
    make sure you have filled (select all vertices and press 'F') it before

    theoryshawRaphaëlVouillozfalken10vdlwmi
  • MasMas
    edited October 2025

    @RaphaëlVouilloz

    subdivide the edges


    grab the middle point and adjust the position

    select points/edges are not needed (if you have subdivided all edges) and press "CTRL+X" to delete this points/edges

    Extruded profil in freecad

    theoryshawRaphaëlVouillozfalken10vdl
  • Ok now I get it, I have to select the two edges and not the three vertices only. Thanks to both of you for the videos!

    Mas
  • MasMas
    edited October 2025

    @RaphaëlVouilloz said:
    Ok now I get it, I have to select the two edges and not the three vertices only. Thanks to both of you for the videos!

    I think if you are selecting the points, the connected edges (between the points) should be also be selected, otherwise it could be that you have doubles (duplicated points) in it. To solve this press "TAB" for editmode--> select all --> in "vertexmode", right mousebutton--> merge vertices --> by distance

  • edited October 2025

    @RaphaëlVouilloz
    when you select vertices you automatically select the edges connecting them

  • You are both right, but I was trying with three isolated vertices, as I am used to with points in sketch environments like FreeCAD.

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