Learning Forum

[chandrabhan]

I am trying to define a node with pre-defined parameters but it is not working.

p = 1; q =2; r = 3; ii=1;

iCoMapdlunit.executeCommandToString('N,ii,p,q,r')

the result shows:

ans =

Undefined parameter used for coordinate 3.  A value of 0.0 will be used.

How to resolve this problem. Thanks in advance.

[ErKo]

The title is a bit confusing - mapdl is an ansys product.
Is this about using mapdl within matlab?
I assume here it is aaS in Matlab.
Try then to type in the numbers for the N command directly:
iCoMapdlunit.executeCommandToString('N, 1, 1.0, 2.0, 3.0')



if this works then it is something with the way one is passing in these parameters
try then to define the xx, yy, and zz as parameters (do not use p as it means pick in apdl, and r is real constant) in apdl:
iCoMapdlunit.executeCommandToString('xx=1.0')
and then pass them into the N command
iCoMapdlunit.executeCommandToString('N, , xx, yy, zz')
....


Fos aaS see this video:
----

In the future though I would recommend to use pyAnsys and pyMAPDL


All the best

Erik