From 5f23da34a9b899f58c43bfc9c30b7d1b2b36699e Mon Sep 17 00:00:00 2001
From: Felix Schindler <felix.schindler@wwu.de>
Date: Tue, 17 Oct 2017 20:58:51 +0200
Subject: [PATCH] [walker.apply-on] add CustomBoundaryIntersections filter
---
dune/xt/grid/walker/apply-on.hh | 41 +++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
diff --git a/dune/xt/grid/walker/apply-on.hh b/dune/xt/grid/walker/apply-on.hh
index 6e643291b..aee787348 100644
--- a/dune/xt/grid/walker/apply-on.hh
+++ b/dune/xt/grid/walker/apply-on.hh
@@ -343,6 +343,47 @@ private:
}; // class BoundaryIntersections
+template <class GridLayerImp>
+class CustomBoundaryIntersections : public WhichIntersection<GridLayerImp>
+{
+ typedef WhichIntersection<GridLayerImp> BaseType;
+
+public:
+ using typename BaseType::GridLayerType;
+ using typename BaseType::IntersectionType;
+
+ /**
+ * \attention Takes ownership of boundary_type, do not delete manually!
+ */
+ explicit CustomBoundaryIntersections(const BoundaryInfo<IntersectionType>& boundary_info, BoundaryType* boundary_type)
+ : boundary_info_(boundary_info)
+ , boundary_type_(boundary_type)
+ {
+ }
+
+ explicit CustomBoundaryIntersections(const BoundaryInfo<IntersectionType>& boundary_info,
+ const std::shared_ptr<BoundaryType>& boundary_type)
+ : boundary_info_(boundary_info)
+ , boundary_type_(boundary_type)
+ {
+ }
+
+ WhichIntersection<GridLayerType>* copy() const override final
+ {
+ return new CustomBoundaryIntersections<GridLayerType>(boundary_info_, boundary_type_);
+ }
+
+ bool apply_on(const GridLayerType& /*grid_layer*/, const IntersectionType& intersection) const override final
+ {
+ return boundary_info_.type(intersection) == *boundary_type_;
+ }
+
+protected:
+ const BoundaryInfo<IntersectionType>& boundary_info_;
+ const std::shared_ptr<BoundaryType> boundary_type_;
+}; // class CustomBoundaryIntersections
+
+
template <class GridLayerImp>
class DirichletIntersections
: public internal::WhichIntersectionBase<GridLayerImp, DirichletIntersections<GridLayerImp>, true>
--
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