extrapolation problem

[Oxcart12]

Good morning to all,
I have a problem with extrapolations in gsd. when for example they select a point on the surface or part and then the relative edge to extrapolate the edge itself, if it is tangent to the adjacent one, the estrap lengthens the edge in wireframe on the side of the point but it propagates automatically on the opposite side by joining everything that is tangent.
You know where I can fix this?

 

[gianni55]

attach an image, otherwise you understand little...

the extrapolar command
(for a surface) accepts the edge selection and then the surface and extrapolates the surface
(for a curve) accepts the point selection and then the curve and extrapolates the curve
and if you do not have them as wireframe consider the geometry of the surface itself,
I now believe that in your case the geometry of the surface is in tangency for which it propagates and maybe you should extract the wireframe and cut it where you need it, but without seeing it hard to understand.

 

[Oxcart12]

Hi, gianni,
if you follow the sequence of images below attached, see how the program behaves right now. if I want to extrapolate an edge through one of its vertices, at the end of this will give me the elongated edge of the chosen quota, but propagated in tangence with adjacent edges.



if instead I use the context menu I can get the simple extrapolation of the selected edge only. But I have an extra step and I don't explain why now do this.



What is that red hand with the hourglass?

 

[gianni55]

hi, the red hand with the hourglass is due to the fact that you have an active user selection filter (in case the filter secondary elements.
I have reproduced your case, and it does not propagate to me. I use r21 and you? I wonder why your command has different modifiers. . .

 

[Oxcart12]

R2020 sp5

 

[gianni55]

try to postpone the images so that you see the full command, maybe by acting on the parameters you limit propagation

 

[Oxcart12]

Hi, gianni,
you will not believe it, but today there is no more the user selection filter activated and not even the problem that I reported you no more...I don't know home tell. Mysteries of Catia v5

 

[Lettore espatriato]

Hi, gianni,
if you follow the sequence of images below attached, see how the program behaves right now. if I want to extrapolate an edge through one of its vertices, at the end of this will give me the elongated edge of the chosen quota, but propagated in tangence with adjacent edges.
View attachment 70439
View attachment 70441
View attachment 70442
View attachment 70443if instead I use the context menu I can get the simple extrapolation of the selected edge only. But I have an extra step and I don't explain why now do this.
View attachment 70444
View attachment 70445
View attachment 70446
View attachment 70447What is that red hand with the hourglass?

If I do an extrapolation so on the side that it varies of the solid and then instead of extruding the solid for 35-40 mm I extrude it for 100mm, to me, generally, the first thing that appears during a "update" is a window in which he asks me to re-check the point.

 

[Oxcart12]

It must be a full update or not. in the sense that in the update the edge changes completely and therefore the program does not know which must be taken as a point. I hope I explained.