如果 occ 提供几个类不能满足,可以参考如下代码
class myfilter : public SelectMgr_Filter {
public:
using SelectMgr_Filter::SelectMgr_Filter;
// 过滤掉文字标签对象
virtual Standard_Boolean IsOk(const Handle< SelectMgr_EntityOwner > &anObj) const override {
return !anObj->Selectable()->IsKind(STANDARD_TYPE(AIS_TextLabel));
}
}
...
context->AddFilter(new myfilter);