From 67e987ed84e19dd0ce46bdc529e8a73010af2c66 Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Mon, 4 Nov 2019 16:20:13 +0100
Subject: proj_create_vertical_crs(): enhance doc

---
 src/iso19111/c_api.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/iso19111/c_api.cpp')

diff --git a/src/iso19111/c_api.cpp b/src/iso19111/c_api.cpp
index 7341131f..f3badb51 100644
--- a/src/iso19111/c_api.cpp
+++ b/src/iso19111/c_api.cpp
@@ -2965,6 +2965,9 @@ PJ *proj_create_vertical_crs(PJ_CONTEXT *ctx, const char *crs_name,
  * use.
  * It should be used by at most one thread at a time.
  *
+ * This is an extented (_ex) version of proj_create_vertical_crs() that adds
+ * the capability of defining a geoid model.
+ *
  * @param ctx PROJ context, or NULL for default context
  * @param crs_name Name of the GeographicCRS. Or NULL
  * @param datum_name Name of the VerticalReferenceFrame. Or NULL
-- 
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