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-rw-r--r--lib/geometricPlane.cpp8
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/geometricPlane.cpp b/lib/geometricPlane.cpp
new file mode 100644
index 0000000..7aadf6a
--- /dev/null
+++ b/lib/geometricPlane.cpp
@@ -0,0 +1,8 @@
+#include "geometricPlane.h"
+
+bool
+GeometricPlane::isIntersect(PlaneRelation a, PlaneRelation b)
+{
+ return ((a == PlaneRelation::Above && b == PlaneRelation::Below)
+ || (a == PlaneRelation::Below && b == PlaneRelation::Above));
+}