cut solid with a solid

[pnoZFP35]

I create solids with this line of code until I have the solids I need

Solid SolidInstance = GeometryCreationUtilities.CreateLoftGeometry(CurveLoop, solidOptions);

and when I have the solids I want to take the first solid and use the rest of the solids to cut the first solid so I can get a solid that look like this 

but I cant find what I need to cut the Solids, what have I missed how can I cut solids?

[RPTHOMAS108 · Accepted solution]

BooleanOperationsUtils.ExecuteBooleanOperation

BooleanOperationsType.Difference

Sometimes these things are a bit hit and miss though depending on tolerances.

[pnoZFP35]

thanks for the help it worked, must have missed it. didn't know the BooleanOperationsType.Difference was for cutting solid

[RPTHOMAS108]

Yes it is a bit of a strange one in a sense.

Ordinarily 'difference' would be the parts from two solids that don't intersect (the opposite of 'intersect'). However, I believe that the logic is that since you are changing just one of the input solids you only get the difference volume of that solid. Otherwise, you would end up with two volumes joined together by edges alone. It is actually quite common in a lot of modelling programs for 'difference' to be thought of as cut.

In AutoCAD they have 'subtract' which is more obvious terminology perhaps.

[rhanzlick]

We struggled before gaining this understanding as well, but in my experience, it works exactly as you've described.