Shows volumes and areas of interference between two sets of ACIS
        entities.
        
            
            Icon: 
            Alias: INF
            
                Note: This command can be entered transparently (‘interfere)
                    during the commands.
             
        
        Method
            
            
            Specifies the first (1) and the second (2) set of ACIS entities: choose one or more
                3D solids and/or 2D regions.
            You can respond with ALL to place all ACIS entities into a set and later use the
                Check first Set option to check them against each other. This obviates the need to
                create two sets of entities.
            The entities in the first set are compared with the entities in the second set and
                results an interference volume (3) or area which is created in layer defined by
                INTERFERELAYER system variable that is stored in the registry and has initial value
                for "Interferences".
            
                Note: The Platinum edition additionally shows volumes of
                    interference between two sets of ACIS solids and then, optionally, creates new
                    ACIS solids from the common portions of pairs of intersecting solids, placing
                    them on layer "Interferences".
             
            The interference solid(s) remain(s) in the drawing when the command ends.
            
                Note: Entities which are on the layer that is set by the
                    INTERFERELAYER system variable are not accepted when selecting entities, as it
                    is considered the output layer only.
             
            
                Note: When you select an interference entity in the model or
                    in the STRUCTURE panel , the originating entities highlight along with the
                    selected interference entity.
             
        
        Options
            
            
                
                    
                        - Nested selection
 
                        - Selects ACIS entities inside blocks or xrefs.
 
                    
                
             
            
                
                    
                        - Settings
 
                        - Displays a dialog box:
 
                        - 
                            
                            
                                
                                    - Create interference solids - when ticked on, makes new
                                        solids from the interference area or volume.
 
                                    - Layer - specifies the layer on which interference entities
                                        are created. Default = layer stored in INTERFERELAYER system
                                        variable. Do not select a layer of selected entities as it
                                        is considered the output layer only. It is recommended to
                                        select an empty layer or accept the default layer.
 
                                    - Color - specifies the color of the interference entities;
                                        the color of the Interference layer is changed to match this
                                        color.
 
                                
                             
                         
                    
                
             
            
                
                    
                        - checK first set
 
                        - Checks the interference of entities in the first set, when it contains
                            two or more entities, and then creates interference entity(ies) of
                            them.