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**Summary:**I can't figure out how the solver carries out the conversions from cartesian to cylindrical coordinates and vice-versa.

I have a set of points of a finite element mesh which when inputted into a solver (ansys) gives the displacement of each node. I can get the displacement values of each node either in r,theta(in rads),z or x,y,z.

Ex -This is the original coordinates of a node

in cylindrical (r,theta,z) -

0.0480138, 1.634834202, 0.000841226

in Cartesian (x,y,z) -

-0.00307257421, 0.0479153927, 0.000841225971

And the displacement values

in cylindrical -

0.0060519, -0.0054482, 0.0026499

in Cartesian -

0.0050497, 0.0063882, 0.0026499

I can only get the displacement output as either in cylindrical or in cartesian format. Right now I'm taking the output in cylindrical format so I need to calculate x,y displacement values. But I can't figure out how the conversion is performed.

So what I want to know is how the displacement in r,theta,z(0.0060519, -0.0054482, 0.0026499) became x,y,z(0.0050497, 0.0063882, 0.0026499) or vice-versa.

Any help will be appreciated.

**[Moderator's note: Moved from a technical forum and thus no template.]**

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