Database: import scope/remarks for coordinate operation and add C API

- Import scope and remarks for coordinate operations of the EPSG dataset.
  Database size goes from 5.2 MB to 5.55 MB
- Add proj_get_scope() and proj_get_remarks()

1 files changed, 45 insertions, 0 deletions

diff --git a/test/unit/test_c_api.cpp b/test/unit/test_c_api.cpp
index 2e6ea2c7..99904fd4 100644
--- a/test/unit/test_c_api.cpp
+++ b/test/unit/test_c_api.cpp
@@ -3375,4 +3375,49 @@ TEST_F(CApi, proj_normalize_for_visualization_with_alternatives_reverse) {
     EXPECT_NEAR(c.lp.phi, 42, 1e-8);
 }
 
+// ---------------------------------------------------------------------------
+
+TEST_F(CApi, proj_get_remarks) {
+    auto co = proj_create_from_database(m_ctxt, "EPSG", "8048",
+                                        PJ_CATEGORY_COORDINATE_OPERATION, false,
+                                        nullptr);
+    ObjectKeeper keeper(co);
+    ASSERT_NE(co, nullptr);
+
+    auto remarks = proj_get_remarks(co);
+    ASSERT_NE(remarks, nullptr);
+    EXPECT_EQ(
+        remarks,
+        std::string("Scale difference in ppb where 1/billion = 1E-9. "
+                    "Derivation excluded Cocos, Christmas and Macquarie "
+                    "Islands but is applied there. See codes 8444-46 for "
+                    "equivalents using NTv2 method. See code 8447 for "
+                    "alternative including distortion model for Aus only."));
+}
+
+// ---------------------------------------------------------------------------
+
+TEST_F(CApi, proj_get_scope) {
+    {
+        auto co = proj_create_from_database(m_ctxt, "EPSG", "8048",
+                                            PJ_CATEGORY_COORDINATE_OPERATION,
+                                            false, nullptr);
+        ObjectKeeper keeper(co);
+        ASSERT_NE(co, nullptr);
+
+        auto scope = proj_get_scope(co);
+        ASSERT_NE(scope, nullptr);
+        EXPECT_EQ(scope,
+                  std::string("Conformal transformation of GDA94 coordinates "
+                              "that have been derived through GNSS CORS."));
+    }
+    {
+        auto P = proj_create(m_ctxt, "+proj=noop");
+        ObjectKeeper keeper(P);
+        ASSERT_NE(P, nullptr);
+        auto scope = proj_get_scope(P);
+        ASSERT_EQ(scope, nullptr);
+    }
+}
+
 } // namespace