intersection spline 3d with top

[HappyFly]

Good morning to all, will you give me a little help? are in difficulty in finding the intersection of a spline drawn on a 3d sketch and a plan, obviously secante such curve.

the reference geometry function - point it gives me error, you know why?

If I do the same for example with a straight it works, depends on the spline?

if it is a limit of the program if what is the trick to turn around? I found it but they are so long to pass my desire and in my drawings I happen to have to find dozens of such points...

Thanks in advance for the help, I hope I didn't double but I found nothing with the search on the forum ... :smile:

 

[Mike1967]

select the plan on which you have to track the intersection, sketch a point
randomly on the floor, select point and spline and add the perforated relationship.

 

[HappyFly]

select the plan on which you have to track the intersection, sketch a point
randomly on the floor, select point and spline and add the perforated relationship.

so I actually use a relationship not a function... never know me coming...
Thank you!!!!!! :smile::smile::smile:

 

[re_solidworks]

what mike suggested is correct in a sketch, if you are in a 3d sketch, give the coincidence to the plane and curve.

 

[Mike1967]

what mike suggested is correct in a sketch, if you are in a 3d sketch, give the coincidence to the plane and curve.

I did it with a 3d sketch...

 

[sampom]

I did it with a 3d sketch...

No mike, forgive me. .
from the image you place in a sketch 2d .

greetings
Marco:smile:

 

[marcof]

No mike, forgive me. .
from the image you place in a sketch 2d .
greetings
Marco:smile:

I have a qui-pro-quo.
mike referred to creation at the intersection point outside the sketch3d, in a new sketch2d and then use "perforated", while re_solidworks referred to making the point coincide with the plan inside the sketch3d where there is the spline and then use "coincident".
In both cases I think there is no other choice than that swx proposal.

 

[sampom]

I have a qui-pro-quo.
mike referred to creation at the intersection point outside the sketch3d, in a new sketch2d and then use "perforated", while re_solidworks referred to making the point coincide with the plan inside the sketch3d where there is the spline and then use "coincident".
In both cases I think there is no other choice than that swx proposal.

already, there is also a quo here for me smile.
the fact is that if as mike says you do a point and make it "perforated" with the spline, it moves/deforms from the original posiz to go to "infilzare" the point.. and it's not okay, because I wanted the spline to be that and not another.
Similarly as re_ says, the coincidence with the spline is not contemplated; Select a point of the spline, and also in this case the spline moves/deforms. In short, I always lose my original geometry and do not solve the problem; I would like to know That's the one spline that intersects a plan where the intersection point is.

remains the fact that the initial question of happyfly is not resolved:
because the point as reference geometry (out of sketches I mean, in the part) for a straight line works and for the spline not? ?

greetings
Mar

 

[sampom]

the fact is that if as mike says you do a point and make it "perforated" with the spline, it moves/deforms from the original posiz to go to "infilzare" the point.. and it's not okay, because I wanted the spline to be that and not another.

rectifying:
I better understand what mike said, I confirm it is. the point is sketched on the plane (both in another sketch and in the same 3d of the spline) and undefined; "perforating" with the spline is he to move (and then define himself) and the spline remains (dovrebbe:smile as it originally is. indifferently in 2d sketch as 3d.

but the doubt remains this:

because the point as reference geometry (out of sketches I mean, in the part) for a straight line works and for the spline not? ?

greetings
Marco:smile:

 

[HappyFly]

I confirm, I solved the problem with the suggestion you gave me; I have to do another 2d sketch, I put myself on the floor in question, I do a random point, I impose it perforated with the spline and it is the point that moves.

I also wonder why with the splines does not work the intersection point as a reference geometry, I did tests not even work with a circle arc, for now it seems to work only with straights...

 

[marcof]

I confirm, I solved the problem with the suggestion you gave me; I have to do another 2d sketch, I put myself on the floor in question, I do a random point, I impose it perforated with the spline and it is the point that moves.

I also wonder why with the splines does not work the intersection point as a reference geometry, I did tests not even work with a circle arc, for now it seems to work only with straights...

Maybe because spline and strings can cross the floor in two or more points then the perforated command does not know where to go to do the "buco" :smile:

 

[HappyFly]

Maybe because spline and strings can cross the floor in two or more points then the perforated command does not know where to go to do the "buco" :smile:

it would be reasonable as you say ... in fact the order curves from two on admit more intersections ... a spline in reality should pass only where it passes for which ... bhooooooo... :biggrin:

 

[Mike1967]

No mike, forgive me. .
from the image you place in a sketch 2d .

greetings
Marco:smile:

I forgive you because you don't know what you do...:biggrin:

I'm kidding. It's confusing that I traced the point in the plan.
spline secret which was created in a 3d sketch.
I hope you understood that it is the point that you place and not the spline.

Hi. :finger:

 

[re_solidworks]

I meant creating a new 3d sketch for managing the single point. in the end nothing changes, you use a different relationship to get the same purpose.

 

[marcof]

it would be reasonable as you say ... in fact the order curves from two on admit more intersections ... a spline in reality should pass only where it passes for which ... bhooooooo... :biggrin:

with the spline in 3d you can also make a sailor's knot and in 2d there are beautiful scarabocchi wanting so you want how many times it can cross the same floor. . .

 

[HappyFly]

with the spline in 3d you can also make a sailor's knot and in 2d there are beautiful scarabocchi wanting so you want how many times it can cross the same floor. . .

You're right, I meant to misunderstand my spline that crosses the floor at one point, but it's obvious that sw probably doesn't even make the calculation.