I was wondering today how to plot a known shear-stress profile against computed results. Came up with a solution, thought I’d share.

Let’s say I have the following data that I’ve created via `PlotOverLine`

filters from a simulation solution:

And I want to create the actual function f(x) = \left(\frac{3}{2}\right)\left(\frac{-1e^{-6}}{1}\right)\left( 1 -\frac{x^2}{0.5^2}\right) and plot it on the same chart.

It seems like the *easiest* way is to:

- Apply a
`Calculator`

filter to the`PlotOverLine`

filter- Use the
`arc_length`

variable as the independent variable, this variable is generated by the`PlotOverLine`

filter

- Use the
- Apply a
`PlotData`

filter to the`Calculator`

- The
`Series Parameters`

data array to plot has the same name as specified in the`Calculator`

filter’s`Result Array Name`

field.

- The

Note that since `arc_length`

is in the range `[0, 1]`

and I know that I need `x = [-0.5, 0.5]`

I had to shift my function in the `Calculator`

filter:

```
( 1.5 ) * ( -1e-6 ) * ( 1 - ( ( ( arc_length - 0.5 )^2 ) / ( 0.5^2 ) ) )
```