Open CASCADE Technology  7.4.1.dev
Data Structures
AIS_SignatureFilter.hxx File Reference
#include <Standard.hxx>
#include <Standard_Type.hxx>
#include <Standard_Integer.hxx>
#include <AIS_TypeFilter.hxx>
#include <AIS_KindOfInteractive.hxx>
#include <Standard_Boolean.hxx>

Data Structures

class  AIS_SignatureFilter
 Selects Interactive Objects through their signatures and types. The signature provides an additional characterization of an object's type, and takes the form of an index. The filter questions each Interactive Object in local context to determine whether it has an non-null owner, and if so, whether it has the desired signature. If the object returns true in each case, it is kept. If not, it is rejected. By default, the interactive object has a None type and a signature of 0. If you want to give a particular type and signature to your Interactive Object, you must redefine two virtual methods: Type and Signature. This filter is only used in an open local contexts. In the Collector viewer, you can only locate Interactive Objects which answer positively to the positioned filters when a local context is open. Warning Some signatures have already been used by standard objects delivered in AIS. These include: More...