From 4e035e686bc33c64b183fe21648f2e1dac1a6d9d Mon Sep 17 00:00:00 2001
From: Nyall Dawson <nyall.dawson@gmail.com>
Date: Thu, 10 Feb 2022 14:48:47 +1000
Subject: [PATCH] Create world file only option is also compatible with Helmert
 transforms

---
 src/app/georeferencer/qgstransformsettingsdialog.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/app/georeferencer/qgstransformsettingsdialog.cpp b/src/app/georeferencer/qgstransformsettingsdialog.cpp
index 9ae8c263ae71..07f733cd3ca4 100644
--- a/src/app/georeferencer/qgstransformsettingsdialog.cpp
+++ b/src/app/georeferencer/qgstransformsettingsdialog.cpp
@@ -210,14 +210,15 @@ void QgsTransformSettingsDialog::accept()
 void QgsTransformSettingsDialog::cmbTransformType_currentIndexChanged( const QString & )
 {
   if ( cmbTransformType->currentIndex() != -1
-       && static_cast< QgsGcpTransformerInterface::TransformMethod >( cmbTransformType->currentData().toInt() ) == QgsGcpTransformerInterface::TransformMethod::Linear )
+       && ( static_cast< QgsGcpTransformerInterface::TransformMethod >( cmbTransformType->currentData().toInt() ) == QgsGcpTransformerInterface::TransformMethod::Linear
+            || static_cast< QgsGcpTransformerInterface::TransformMethod >( cmbTransformType->currentData().toInt() ) == QgsGcpTransformerInterface::TransformMethod::Helmert ) )
   {
     mWorldFileCheckBox->setEnabled( true );
   }
   else
   {
+    // world file only option is only compatible with helmert/linear transforms
     mWorldFileCheckBox->setEnabled( false );
-    // reset world file checkbox when transformation differ from Linear
     mWorldFileCheckBox->setChecked( false );
   }
 }