Take into account supersession information to filter out irrelevant transformations

2 files changed, 7 insertions, 1 deletions

diff --git a/include/proj/coordinateoperation.hpp b/include/proj/coordinateoperation.hpp
index 4dd85e96..f5cdbba0 100644
--- a/include/proj/coordinateoperation.hpp
+++ b/include/proj/coordinateoperation.hpp
@@ -1680,6 +1680,10 @@ class PROJ_GCC_DLL CoordinateOperationContext {
 
     PROJ_DLL bool getUsePROJAlternativeGridNames() const;
 
+    PROJ_DLL void setDiscardSuperseded(bool discard);
+
+    PROJ_DLL bool getDiscardSuperseded() const;
+
     /** Describe how grid availability is used. */
     enum class GridAvailabilityUse {
         /** Grid availability is only used for sorting results. Operations
diff --git a/include/proj/io.hpp b/include/proj/io.hpp
index 77ca1d2d..26420150 100644
--- a/include/proj/io.hpp
+++ b/include/proj/io.hpp
@@ -887,13 +887,15 @@ class PROJ_GCC_DLL AuthorityFactory {
     createFromCoordinateReferenceSystemCodes(
         const std::string &sourceCRSAuthName, const std::string &sourceCRSCode,
         const std::string &targetCRSAuthName, const std::string &targetCRSCode,
-        bool usePROJAlternativeGridNames, bool discardIfMissingGrid) const;
+        bool usePROJAlternativeGridNames, bool discardIfMissingGrid,
+        bool discardSuperseded) const;
 
     PROJ_DLL std::vector<operation::CoordinateOperationNNPtr>
     createFromCRSCodesWithIntermediates(
         const std::string &sourceCRSAuthName, const std::string &sourceCRSCode,
         const std::string &targetCRSAuthName, const std::string &targetCRSCode,
         bool usePROJAlternativeGridNames, bool discardIfMissingGrid,
+        bool discardSuperseded,
         const std::vector<std::pair<std::string, std::string>>
             &intermediateCRSAuthCodes) const;