When using the command CSURF or even spreadsheet calculation by clicking the columns TRS or PVS, you will see the screen below.
Here, you can choose the reference surface.
If you are not sure what surface you select, you can still click the button
To select directly on the screen.
In this case, click the desired surface and it will be selected in the screen above.
Finally click OK.
CSURF or even spreadsheet calculation by clicking the columns TRS or PVS, you will see the screen below.
To select directly on the screen.
In this case, click the desired surface and it will be selected in the screen above.
Finally click OK.