From a96e8f5f4e2a2145656c533271d1461ea077a35d Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Sat, 6 Jun 2020 20:35:00 +0200
Subject: createOperations(): changes so that EPSG:9635 'Geog3D to
 Geog2D+GravityRelatedHeight (US .gtx)' method used by Slovakian geoids
 correctly deal with axis order and unit conversion, to be used as
 'standalone'. Also improves when using directly 'Geographic3D to
 GravityRelatedHeight' method

---
 src/iso19111/io.cpp | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

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

diff --git a/src/iso19111/io.cpp b/src/iso19111/io.cpp
index e7f8769c..38b407ee 100644
--- a/src/iso19111/io.cpp
+++ b/src/iso19111/io.cpp
@@ -6635,6 +6635,7 @@ struct PROJStringFormatter::Private {
     std::vector<InversionStackElt> inversionStack_{InversionStackElt()};
     bool omitProjLongLatIfPossible_ = false;
     std::vector<bool> omitZUnitConversion_{false};
+    std::vector<bool> omitHorizontalConversionInVertTransformation_{false};
     DatabaseContextPtr dbContext_{};
     bool useApproxTMerc_ = false;
     bool addNoDefs_ = true;
@@ -7739,6 +7740,25 @@ bool PROJStringFormatter::omitZUnitConversion() const {
 
 // ---------------------------------------------------------------------------
 
+void PROJStringFormatter::pushOmitHorizontalConversionInVertTransformation() {
+    d->omitHorizontalConversionInVertTransformation_.push_back(true);
+}
+
+// ---------------------------------------------------------------------------
+
+void PROJStringFormatter::popOmitHorizontalConversionInVertTransformation() {
+    assert(d->omitHorizontalConversionInVertTransformation_.size() > 1);
+    d->omitHorizontalConversionInVertTransformation_.pop_back();
+}
+
+// ---------------------------------------------------------------------------
+
+bool PROJStringFormatter::omitHorizontalConversionInVertTransformation() const {
+    return d->omitHorizontalConversionInVertTransformation_.back();
+}
+
+// ---------------------------------------------------------------------------
+
 void PROJStringFormatter::setLegacyCRSToCRSContext(bool legacyContext) {
     d->legacyCRSToCRSContext_ = legacyContext;
 }
-- 
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