Curves workbench

[Chris_G]

Ive got a small bug with IsoCurves. Some curves are missing but got some plots instead.

Indeed.
I have not looked at this code for a while.
I'll try to fix this.
Thanks.

[Vincent B]

this surface give errors as well.

[Vincent B]

1.PipeShell with Frenet property is different with a part's sweep. Its seems not working.
2.when im moving PipeShell (x for example, the surface change)

[Chris_G]

1.PipeShell with Frenet property is different with a part's sweep. Its seems not working.

Frenet mode offers a "Corrected" property.
If it is set to True, you get the same result as Part.Sweep

2.when im moving PipeShell (x for example, the surface change)

Probably a bug that I need to investigate.
Thanks.

[Vincent B]

How to make a full Gordon instead an half one?
Or how to make a mirror copy?

[hammax]

… look here:
https://forum.freecadweb.org/viewtopic. ... 25#p274225
and here
https://forum.freecadweb.org/viewtopic. ... 38#p272600

A mirroring with DraftWB was possible, but I also don't understand, how it works.
https://forum.freecadweb.org/viewtopic. ... 98#p274212
How do I get the coordinates of the normal vector on the mirror plane?

DraftMirrorGordon.PNG (68.02 KiB) Viewed 2120 times

[hammax]

… I think that I found the hint to the mirror plane normal.
DraftWB uses the mirror tool of PartWB.
But PartWB mirror only can use the system planes or offsets to them.
In DraftWB you can generate a "working plane proxy" on the "surface for mirror".
When using DraftWB mirror you only are able to select 2 points on a wire of the "surface to mirror".
And you get an oblique mirror of the Gordon surface.
But inserting/using the values of the normal-vector of the working-plane-proxy into datatab of the mirror,
the oblique position can be corrected.
(A bug or a feature?)

DraftMirrorGordon_2.PNG (56.76 KiB) Viewed 2070 times

[Vincent B]

I finally found a solution using PartDesign with datumpoints. Delete the constraint3 and move datumpoint001, we can see what is "normal": a vector that's must be perpendicular of the mirror.(of course).

[Vincent B]

Here the same thing without PartDesignNext (Point is not a dynamic objet here)

[Vincent B]

Interpolate_curves or Approximate_points carry out a wrong result when vertex are not correctly ordered.