@jean lemire said:

Hi folks.

See these files:

[attachment=0:254czc31]<!-- ia0 -->Progressive volume of a barrel.zip<!-- ia0 -->[/attachment:254czc31]
Click in sequence on the scenes tabs of the skp file.

You can use the Excel file as a start to do the calculation.

Just ideas

Nice, Quite good. Tks Jean

shame...as I supposed. I would like to make graphically the change of contents of the barrel, indicating the volume, but...
Thank you a lot.

ty. but in this case I'll obtain the instant volume at the height of the intersected plan.
If I have to calculate (per ex) 50 or more levels I need to create 50 different intersect planes deleting extra geometries all the time.
I would need, but I don't know whether is possible, a solid volume able to change misures by "move botton" and following the barrel shape, in order to know how many litres I will have when the liquid is at 10 cm or 11 or 12 and so on.
Is it possible in your opinion?
bye

Hello to everybody. I am here for the first time looking for a solution to my problem:
I created a wooden barrel in which I would like to calculate the volume of the liquid I can put inside at differnt heights. The barrel is posed in orizzontal way.
The top solution should be to trace a mobile surface able to follow the inernal section of the barrel (that is not a cilinder), calculating the volume at single points (or 0,5 cm step by step).
Is it possible in your opinion? If yes, suggestions or comments?
Using sketchup vers. 8.0 freeware.
hope I was clear in the exposition of the problem, thank you for attention and helpness
waiting for answers soon
bye bye