2 files changed, 11 insertions, 2 deletions
diff --git a/include/proj/coordinateoperation.hpp b/include/proj/coordinateoperation.hpp
index 92b655f9..fd737dcc 100644
--- a/include/proj/coordinateoperation.hpp
+++ b/include/proj/coordinateoperation.hpp
@@ -146,7 +146,9 @@ class PROJ_GCC_DLL CoordinateOperation : public common::ObjectUsage,
     gridsNeeded(const io::DatabaseContextPtr &databaseContext) const = 0;
 
     PROJ_DLL bool
-    isPROJInstanciable(const io::DatabaseContextPtr &databaseContext) const;
+    isPROJInstantiable(const io::DatabaseContextPtr &databaseContext) const;
+
+    PROJ_DLL bool hasBallparkTransformation() const;
 
   protected:
     PROJ_INTERNAL CoordinateOperation();
@@ -167,6 +169,7 @@ class PROJ_GCC_DLL CoordinateOperation : public common::ObjectUsage,
     PROJ_INTERNAL
     void setAccuracies(
         const std::vector<metadata::PositionalAccuracyNNPtr> &accuracies);
+    PROJ_INTERNAL void setHasBallparkTransformation(bool b);
 
   private:
     PROJ_OPAQUE_PRIVATE_DATA
@@ -1493,6 +1496,11 @@ class PROJ_GCC_DLL Transformation : public SingleOperation {
     PROJ_DLL TransformationNNPtr substitutePROJAlternativeGridNames(
         io::DatabaseContextNNPtr databaseContext) const;
 
+    PROJ_DLL static TransformationNNPtr createChangeVerticalUnit(
+        const util::PropertyMap &properties, const crs::CRSNNPtr &sourceCRSIn,
+        const crs::CRSNNPtr &targetCRSIn, const common::Scale &factor,
+        const std::vector<metadata::PositionalAccuracyNNPtr> &accuracies);
+
     PROJ_PRIVATE :
         //! @cond Doxygen_Suppress
         PROJ_INTERNAL const std::string &
diff --git a/include/proj/internal/coordinateoperation_internal.hpp b/include/proj/internal/coordinateoperation_internal.hpp
index 8428b8bf..65b786b2 100644
--- a/include/proj/internal/coordinateoperation_internal.hpp
+++ b/include/proj/internal/coordinateoperation_internal.hpp
@@ -246,7 +246,8 @@ class PROJBasedOperation : public SingleOperation {
     create(const util::PropertyMap &properties,
            const io::IPROJStringExportableNNPtr &projExportable, bool inverse,
            const crs::CRSNNPtr &sourceCRS, const crs::CRSNNPtr &targetCRS,
-           const std::vector<metadata::PositionalAccuracyNNPtr> &accuracies);
+           const std::vector<metadata::PositionalAccuracyNNPtr> &accuracies,
+           bool hasRoughTransformation);
 
     std::set<GridDescription>
     gridsNeeded(const io::DatabaseContextPtr &databaseContext) const override;