DifferenceΒΆ

Learning targets

  • Use Boolean operation to form the difference of two objects

This example forms the difference of two circles by means of the Boolean difference operator.

_images/ex2d_difference_mesh.png

.jcm Input File

  • layout.jcm [ASCII]

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    Layout2D {  
  UnitOfLength = 1  
  Objects {
    
    Parallelogram {
      Priority = ComputationalDomain
      DomainId = 1
      BoundingBox {
        Offset = [1 1 1 1]
      }
    }
    
    BooleanOperation {
      DomainId = 2 
      Operator = Difference
      A { 
        Circle {
          Radius = 6
          GlobalPosition = [-4.0 0.0]
          RefineAll = 2
        }
      }
      
      B {
        Circle {
          Radius = 4
          GlobalPosition = [1.75 0.0]
          RefineAll = 2
        }
      }
    }
  }  
  
}