Zooen - Are you thinking something like the AutoRotate2 script here?

http://moi3d.com/forum/lmessages.php?webtag=MOI&msg=1001.20

Ed Ferguson

;) https://moiscript.weebly.com/tournette.html

Hi G, I added some comments on your other OBJ Import thread at:
https://moi3d.com/forum/index.php?webtag=MOI&msg=10531.1

re:
> I'd love a bit more control in the show hide option. Its a touch annoying that
> if I hide all curves but then hide and subsequesntly reveal a surface it brings
> back the curves as well. If there was a touch more granluarity in the reveal
> opotion it would be grand.

There are a few different ways you can do this currentlly. One is using the Scene Browser, you can hide/show different categories of objects using the "Types" section of the scene browser.

Another way is to use the "Show subset" function. That is triggered by holding down the Ctrl key when you click on the Edit > Hide button. That will give you a display of the hidden objects and let you pick just one or some of them to show instead of showing all.

Another way to get granular show/hide is to assign your objects to a style an use the "Styles" section of the scene browser to show/hide just those objects, or assign a name to it and use the "Objects" section of the scene browser to target just objects assigned to that name.

- Michael

Hi pafurijaz,

> I wanted to know if in the next version a visual control method for the curvature of the
> surfaces, of the zebra or gaussian type, could be included.

Sorry probably not too likely in the next version, that's a very advanced type of surface analysis function.

That type of detailed surface analysis is better done in a program like Rhino that is focused on detailed surface modeling and not so much in MoI which is focused on being streamlined, quick, and easy to use.


re:
> to edit the surfaces with the control vertices in real time

Currently MoI is not very focused on editing of surface control points. You would be better served doing this type of task in Rhino rather than in MoI.


> here on wiki seem that can be also implemented via CSS Html, and I wonder if that is possible with moi3D script
> https://en.wikipedia.org/wiki/CSS

Sorry I don't understand this part, what is the connection between CSS and Gaussian curvature?


- Michael

<< Zebra...

You have the free Polycad! ;) The go-between the 2 programs is IGES

As far as I can tell, zebra-stripe in CSS refers to a table with alternate colored lines, not surface curvature :-)

with Polycad, you cannot import trimmed surfaces, and the problem is being able to modify the control vertices directly in Moi, with PolyCAD you cannot do it, and I also have other programs that do this all in all well, with Blender I can import Nurbs surfaces but I can't export them.

Sorry Michael, but I meant the Zebra stripes ca be implemented via CSS and thought this because I saw many command are with JavaScript and html -- https://en.wikipedia.org/wiki/Zebra_striping_(computer_graphics)

I'm sorry to hear it's something complicated, there are a lot of software that have implemented this kind of zebra stripes visualization, and from Wikipedia it seemed like something someone like you could have done simply, Gaussian curvature also seems like there's a lot didactic material. 
I don't use Rhino because I don't use Windows, otherwise I would have renewed my license

https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.24.3427&rep=rep1&type=pdf

here some screenshot of opensource software with this kind of analysis of surfaces
Thanks anyway I will find other way to do that.







Just to complete my request the zebra stripes could be implemented as a reflection map in Moi3D's lighting system

Greetings

Have you an example of a "trimmed surface" ? (from Moi)

Here is the demonstration that it does not support trimmed surfaces, I have tried many times and it does not support any trimmed surfaces.

Thanks Ed, this script will be very useful to me. Thanks Pilou for the translation.
The little extra would have been to be able to automatically put the object in a perfectly vertical position from the front, or perfectly horizontal from above, in the 3D view, before launching "AutoRotate2" or in the script itself.

Sorry i am not sure to understand the problem of the trimmed surfaces ? :(
Have you the Moi file ?


In fact i see what do you speak about! :)
I will explore because as you can see there is the trimming curve on the hull!
So must find the trick inside this labyrintical prog :D



Small advance but...:)
Seems it doesn't like intersections of surface!
It's a pity because all is done...


Seems a very powerful program but with an no ergonomic and fluid Interface! :)
And some tenebrous functions to blend between them! :)

Hi Michael,

I have a question; is it possible to control the pointiness of a generated mesh using the sweep command?

Hi Psygorn,

re:
> I have a question; is it possible to control the pointiness of a generated mesh using the sweep command?

Well if you use the "Pointy ends" option in Sweep it will transition from a profile curve to a point at the tip. You can get some control over how long the pointy part will be by putting in additional profile curves.

If you want to control the "side profile" of the point you might be better off generating a straight pointy object using Revolve and then apply it to the curved path using Transform > Deform > Flow rather than using the Sweep command.

If you need more help I may need some kind of sketch or example of what you're trying to do.

- Michael

Hello Dear Michael,

This is not a V5 wish however, I thought I have to post it here!

Why I cannot Extrude to point the red curves into the green point?

When I try to Extrude the red profile toward the green point it goes on a direction which is not my desired direction.

The final mesh's singularity point is a bit offset.

I hope I described the problem well.

Hi Psygorn,

re:
> This is not a V5 wish however, I thought I have to post it here!

It would be good to start a separate topic for it if it is not related to this thread's subject.


> Why I cannot Extrude to point the red curves into the green point?

You can, there is an "Unlock direction" option you can click if you want to freely place the point somewhere not on the initial default tracking line:



Your point though is on a different z level than the curve, you probably need to position it at the right level before extruding to it.

- Michael

Thank you Michael,

it is funny but I did not even see the "Unlock Direction" button!

Thank you for guiding me.

Hello Michael,

I hope you are doing well, and happy new year in advance.

I just wanted to ask a question -out of curiosity- and others might have asked it before. however, I just thought to ask it here real quick.

Should we expect non-destructive modeling approach in MOI3D?

I know that one way of having non-destructive modeling is to use Nodeeditor (elephant) but I wanted to know if we could expect it inside of MOI3D itself.

Best and happy new year,

Psygorn (Drillbit)

Hi Psygorn,

re:
> Should we expect non-destructive modeling approach in MOI3D?

I hope that eventually yes MoI would have that but there will be a lot of work to get there and so I don't know when it will happen.

It also has not been a high priority for MoI because there are many other already existing CAD programs that are already heavily focused on it.

If it's an important function for you I would recommend to use one of those CAD programs that are based on it, like SolidWorks, Alibre, OnShape, etc... alongside MoI instead of only MoI all by itself.

- Michael