Hi Franz,

interesting! i did only worked in ArtForm when editing the curve and did not import back into MoI,
for further editing.

Then it seem you must use your technique until maybe there is an update in V4, regarding
this functionality.

Regards
Stefan

Hi Stefan!

It's not such a big problem, I'm already curious about what V4 will bring new things.

Best Regards
Franz

Hi Franz,

re:
> I tried this one, working well, but the getting curve is not the same.

If I understand correctly you're creating some evenly spaced points along the curve and then making a new curve through those points?

Yes, that's normal that the new curve created in that way will not be 100% identical to the original, just sampling a relatively small number of points does not capture enough information from the original curve.

You'd need to preserve the points you used to make the original curve.

- Michael

Thanks, Michael!

So I see, I`m not wrong with my opinion.
But it would be practical to be able to change the curve also with movement of these points.
Maybe in V4?

gratefully,
Franz

Hi Franz, well I'm hoping that could be one part of an extended history function. But that's going to require quite a lot of work to implement so it's rather unlikely for the v4 time frame.

- Michael

Hi Franz,

> It is interesting to note that there is actually a spline curve here, where 1 point is alternately arranged on the line, the next one as a > control point.

Because i find this topic quite interesting and i tried it with several apps, i come to the conclusion that for your case
MoI and ArtForm is probably the best solution. I wanted also to try with ViaCAD and 123Design and Fusion 360, but
with ViaCAD and back importing into MoI i get a curve with to many control points and the other two can't import
the curves only from MoI, regardless what exporter i have used.

Can you please confirm my findings:

I created a through point spline in MoI with four points drawn, saved as .3dm and imported into ArtForm.

In ArtForm i used "Curve Edit/Modify/Modify Point on Curve" and i have now the four points, modified one
point and saved as .3dm and imported back into MoI to compare. Perfect result IMHO. :-)

[EDIT] I tested with a curve and more points (15) and then ArtForm shows/uses only 13 points while the
shape is the same. But one can insert points on a curve too, with ArtForm in case it is required.

Regards
Stefan

This is most interesting,

that ArtForm uses lesser points on curve than MoI (and some of them are not on the same position)
but the back imported shape is the same.

I tested it again with drawing points in MoI then drawing a curve on them through points
and imported into ArForm to see the difference and finally back to MoI.



Red original from MoI black import back from ArtForm.



Regards
Stefan

A link of Artform ?

???

I thought you have it already on your computer... because you already made things with it and posted here... :-)

Regards
Stefan

Huhu : I had JDSoft-ArtSoft : I believed Artsoft "alone" was another one! :)

Hi Stefan!

I will try it in your way, here is the wanted function in Qcad (DXF):
So export the curve to DXF, edit it in Qcad and import it again, if you like.
But I think they drew the points earlier in Moi.

Franz

Hi Franz,

i also played today with HeeksCAD and it has the function to automatically
create a spline curve from points! :-) But i could not figure out yet how to edit
splines in there and also how to export as step or iges, because no files were written.

Later then i found PolyCAD which also looks very interesting but i have to wait for
the serial.

Regards
Stefan

Don't really understand if it's entierelly free or not ?

In any case seems terrific for boat's hull!

Hi Pilou,

yes, it is free, but you must register the software.

Regards
Stefan

YES: PolyCAD is free:::
http://www.polycad.co.uk

regards
O.

Thanks! I have a mail from the author Marcus Bole
but alas i had not my glasses when I sent him the Computer key number machine, so i must make it again! :)

PS He don't know Moi3D! So a cool discovery for him!

Hi Stefan!

Thanks for the tip with ArtForm (3.5).
In my version I cannot import *.3dm, only IGES.
Connot finde in "Curve Edit" the way to /Modify/Modify Point on Curve.
And I had to learn more about working with ArtForm, so I cannot edit points from the curve now.

Sorry, I will try later.
Franz

Hi Franz,

no problem. In order to do that you have to be in the NURBS Modeler module.



Regards
Stefan

...and right Click on the canvas when you have select what you want and how export! ;)
The format 3dm appears in the popup menu of file saving.

Hi Stefan!

Thank`s for your help.
I see, it ist really possible with these "sidestep" to ArtForm, to change the curve form with curve points and reimport to moi very quick!

Franz :)!