is it possible to move a profile in its plane within a sweep?

[Anonymous]

Hello all! 

The title of the post might sound strange but I hope it makes sense. What I'm trying to get is a surface generated by using a sweep (other suggestions are welcome).

I have a curve -in green- (in the example is a 2D sketch in a vertical plane but it could be a 3D curve), a plane and a profile -in blue-. I want the profile to be sweeped using the yellow curve (which is the projection of the 3D curve to the plane) so that the arc remains tangent to the plane and at the same time, I want the profile to intersect the green line in every cross section of the surface.

Do you know whether this is possible? You can find attached the file in case you want to test it.

Thank you very much!

[Anonymous]

Are you looking for a part of a round cone, but only the surface of it? From 0 to 1/2*PI?

[Anonymous]

[Anonymous]

Hi! Thanks for replying.

What I'm looking for is not a cone. It is a surface which mainteins the same radius while it is tangent to the horizontal plane and, additionally, it touches a 3D line. The following would be a more general case:

The yellow line is the 3D curve. The green line is its projection in the visible plane. I want a sweep with the blue line as profile that is tangent to the plane (which in this case means that the center of the arc will be at the same elevation for all cross sections) and it intersects the 3D line. The following image shows to random intermediate sections:

Do you know what I mean?

Thank you!

[Anonymous]

So the yellow line is the apex of the profile, the profile shape is an arc, and the place where it touches the lower visible plane has the same shape as the yellow line?

[Anonymous]

It looks like you can copy the projected arc onto the apex of the curve on the visible plane. That way you would have a complete boundary to patch.

[Anonymous]

Hello,

I think I don´t understand what you mean exactly... Let me add another simpler example of what I want to get:

I´ve got the circle as sweep profile and want it to be sweeped along the yellow curve which is a 3D curve. I want the circle to remain in contact with this line while is always tangent to the XY plane (shown in the image).

If I just do the sweep picking the yellow line as path, what I get is shown in the next picture. In red, you can see the intersection between the sweep surface and the XY plane. If I achieve somehow to do what I want, this intersection should be a continuos and unique line meaning that the surface is tangent to the plane.

Is this possible??

Thank you again!

[Anonymous]

Have a look at this file and tell me if this is something similar.

If I understand correctly, you want a sweep along a 3d line of a sketch profile to form a surface?

[Anonymous]

I think you want to use projected geometries, as well as copy and paste to acheive what you're looking for.

Ultimately you want to create a boundary that you can patch, which means you must have a closed loop.