Parametric Equation
Parametric Equation
(OP)
Hi!
How can I make a parametric equation in NX.
I'm using NX6. First, I defined a constant expression, named 't' and set to 0. Then I defined an equation like this:
where the type of 'yt' is length.
I want to create a point with Y component value which is calculated by yt function, since the values of 't' will be 0, 0.1, 0.2, 0.3 and 0.4. Hence, I want NX to calculate it automatically. For example, for t=0.4, it would calculate the yt(0.4).
Please tell me how to do this in NX.
Thanks in advance.
And, by the way, Merry Christmas...
How can I make a parametric equation in NX.
I'm using NX6. First, I defined a constant expression, named 't' and set to 0. Then I defined an equation like this:
CODE
yt=sin(t*pi())-cos(t*pi())*t*pi()
I want to create a point with Y component value which is calculated by yt function, since the values of 't' will be 0, 0.1, 0.2, 0.3 and 0.4. Hence, I want NX to calculate it automatically. For example, for t=0.4, it would calculate the yt(0.4).
Please tell me how to do this in NX.
Thanks in advance.
And, by the way, Merry Christmas...





RE: Parametric Equation
RE: Parametric Equation
RE: Parametric Equation
As the value of t changes, yt will be recalculated, to change the location of the point.
You can create law curve by using t, yt along with xt & zt.
RE: Parametric Equation
Thanks a lot...
RE: Parametric Equation
John R. Baker, P.E.
Product 'Evangelist'
NX Design
Siemens PLM Software Inc.
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Parametric Equation
Also, these points are gonna be located on YC-ZC plane. The other one is:
CODE
And what about that function I mentioned?
RE: Parametric Equation
Thanks in advance...
RE: Parametric Equation
If you have a file with point data you can import that into NX, see thread561-181530: Points from an Excel Spreadsheet for an example (it is a fairly easy process though not intuitive). It seems like we have had a more recent (and thorough) discussion on importing points, but my searching has not hit on the right key words.
RE: Parametric Equation
thread561-225071: how to import Excel data i,e. points (x,y) ?? UG-NX4.
RE: Parametric Equation
I'm trying to know that,
is there any way to calculate those 'yt' and 'zt' values automatically by NX Application or I have to make new expressions and assign the values of 't' for each of them like this?
CODE
yt3=yt=sin(t3*pi())-cos(t3*pi())*t3*pi()
zt3=cos(t3*pi())+sin(t3*pi())*t3*pi()
CODE
yt5=sin(t5*pi())-cos(t5*pi())*t5*pi()
zt5=cos(t5*pi())+sin(t5*pi())*t5*pi()
By the way, I can do this in CATIA via yt.Evaluate() function in Law Editor window.
RE: Parametric Equation
What if you use the parametric equations to define a curve then space datum planes along the curve (possibly controlled by expressions) then your points would be the intersection(s) of the datum planes and the curve?
RE: Parametric Equation
Also, please someone explain the ug_fieldVarAt() function in NX6. There's no example of this in the Documentation...
RE: Parametric Equation
RE: Parametric Equation
John R. Baker, P.E.
Product 'Evangelist'
NX Design
Siemens PLM Software Inc.
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Parametric Equation