point its surface

[peloritano]

Hello everyone

I have a problem that often arises and since I failed to solve it I want to ask your opinion

It is simply to create a point on a surface. in this regard I attach the image.
The command I use is "point"

when opening the dialog box I choose as "point type=on the surface"

I select the surface and move on the same by identifying the exact area where I want to place my point

as seen from the image are identified two points 1 and 2

I want to place my point exactly in 1 but he puts it in 2

I also tried to change the direction (drawing different axes) and to change the dynamic position from big to finish but nothing.. .

How the hell do I place the point exactly where I want??? ? ?

 

[Mocca]

Bye.
You should have the incriminated surface to simulate your own situation. In the meantime, you could reach the problem in various ways: "extracting" the individual surface (it seems to me that you have selected a skin) and use the same command on the individual surface; another method is to create a point on a plane and then prioettarlo on the surface; Another method is to create 2 isoparametics on the surface and identify intersection among them.
I repeat that these are just escamotages to solve the problem.
curiosity: why do you need to have a point on that surface?
we waved

 

[peloritano]

Okay, I'm the point with the methods you've indicated the pitch where I want... .
but it takes too much work... .

Is there a direct command and I wonder why it doesn't work??? Am I not to know how to use it or is it a trick he?? ? ?

I need to create a point because I have two superimposed skins different from each other, so I have to determine the difference between one skin and the other.

if I have to weld a piece and remake it with the new skin I choose points on the new skin and I project them on the old skin and determine the distance... if I have to do this for a hundred points you understand that I am greatly lengthened the times if I have to perform all the operations you have indicated me

 

[flaviobrio88]

Okay, I'm the point with the methods you've indicated the pitch where I want... .
but it takes too much work... .

Is there a direct command and I wonder why it doesn't work??? Am I not to know how to use it or is it a trick he?? ? ?

I need to create a point because I have two superimposed skins different from each other, so I have to determine the difference between one skin and the other.

if I have to weld a piece and remake it with the new skin I choose points on the new skin and I project them on the old skin and determine the distance... if I have to do this for a hundred points you understand that I am greatly lengthened the times if I have to perform all the operations you have indicated me

ot:
from the model it would seem that you make sheet molds.
use the overlap of 2 elements to analyze the changes that have come to you?
Do you need points for the workshop to tell him where to weld the material?

 

[peloritano]

yes everything exact.... .
Actually, I don't just use this method. .
later I have to prepare a detailed map of where and how much weld but the use of points is essential to me also for other purposes

Any explanation on the incriminated command?? ? ?

 

[Mocca]

Okay, I'm the point with the methods you've indicated the pitch where I want... .
but it takes too much work... .

Is there a direct command and I wonder why it doesn't work??? Am I not to know how to use it or is it a trick he?? ? ?

I need to create a point because I have two superimposed skins different from each other, so I have to determine the difference between one skin and the other.

if I have to weld a piece and remake it with the new skin I choose points on the new skin and I project them on the old skin and determine the distance... if I have to do this for a hundred points you understand that I am greatly lengthened the times if I have to perform all the operations you have indicated me

...I suggested solutions thinking that I was in trouble; I'll do it again.
I asked you why of the point on the surface because I had also guessed from the image that you had to indicate the difference delta-z between new skins and old skins. work in contact with the workshops for 25 years in the field of thermoplastic molds and situations like yours I have seen vagonate considering the fact that to the welder does not affect the mm more or less yours seems to me a work almost useless.
However, in your case, I repeat if on a constant z plan you create a sketch with the 5000 points you need and project them (in one shot only) first on a skin and then on the other skin surely do much before using your method.
As for the command problem I tried to simulate your situation but I didn't find the error.
only in one case, trying to generate the point on a very small radius, the result was where I did not want. but I solved it by inserting in the cell "reference: point" instead of "predefinite" a point already existing on the surface without, in fact, leaving the default central point of blue color that the system proposes and from which it creates the distances.
...on with life and not you....re.
we waved

 

[peloritano]

...I suggested solutions thinking that I was in trouble; I'll do it again.

I ask you immensely sorry if in my answer you could see something rude. . . .

It was absolutely not my intention and I appreciated the fact that you proposed alternative ways and I hope you still do it with me and with other users....

I asked my question to try to understand in detail how the hell that command works.. .

I often use commands and get the desired operation even if sometimes I can't understand what they want to indicate the required parameters....

returning to your analysis I confirm that the problem arises in the surfaces that have a curvature... changing as you indicate the point of reference works... but what's the paramentary direction for? what is the use of large or fine dynamic positioning?? ? ? ?

I still repeat my apologies for the misunderstood message

 

[flaviobrio88]

do you have a cat module that pulls you out a mapping (distance, zone up down, profiles changed, holes not present anymore)?

 

[peloritano]

do you have a cat module that pulls you out a mapping (distance, zone up down, profiles changed, holes not present anymore)?

??? ? Do you want to explain? ? ?

 

[flaviobrio88]

??? ? Do you want to explain? ? ?

nothing pure curiosity, as you said:
later I have to prepare a detailed map of where and how much weldI wanted to know if you have a form that identifies you all this or it was a job you had to do manually

 

[Mocca]

I still repeat my apologies for the misunderstood message

...no problem for misunderstanding.
then when you select a surface on which to place the point empirically (with the mouse pointer), the system automatically generates a central point to the selected surface (green point) and from that point, straight (cordal), generates your point (blue point); in this case you will see in the table the "distance" that is the one that is between the central point and the point you created. (as I told you in the previous post the default point can be changed).
if in the "direction" cell insert for example (contextual menu in the cell) the x axis then the distance you will see in the tabellina will be that calculated in the direction of the x axis always in a "cordal" way.
Finally, the difference between large and fine, to make it short, is precisely the precision with which the system generates the point on the surface compared to the in fact mouse pointer by activating the option "end" the system disinhibits the dynamic counter.
we waved

 

[peloritano]

nothing pure curiosity, as you said:
later I have to prepare a detailed map of where and how much weldI wanted to know if you have a form that identifies you all this or it was a job you had to do manually

It's a job I do manually. ...
There are a number of operations that could help me, but I don't trust that when there are differences in a few tenths, it's not reliable. . .
I prefer to do everything manually