BUG: Use an internal default ImageMetadata in Ice/ViewSettings

Modules/Visualization/Ice/include/otbViewSettings.h

@@ -157,6 +157,7 @@ private:
   SizeType m_ViewportSize;
   std::string m_Wkt;
   const ImageMetadataType* m_ImageMetadata;
+  const ImageMetadataType m_DefaultImageMetadata;
   PointType m_RotationCenter;
   double m_RotationAngle;
   bool m_UseProjection : 1;

Modules/Visualization/Ice/src/otbViewSettings.cxx

@@ -28,13 +28,14 @@ ViewSettings::ViewSettings() :
   m_Wkt( "" ),
   m_RotationAngle( 0.0 ),
   m_UseProjection( true ),
-  m_GeometryChanged( false )
+  m_GeometryChanged( false ),
+  m_DefaultImageMetadata()
 {
   m_Origin.Fill( 0 );
   m_Spacing.Fill( 1 );
   m_ViewportSize.Fill( 0 );
   m_RotationCenter.Fill( 0 );
-  m_ImageMetadata = nullptr;
+  m_ImageMetadata = &m_DefaultImageMetadata;
 }
 
 ViewSettings::~ViewSettings()
@@ -50,7 +51,7 @@ ViewSettings
 
   m_Wkt = "";
 
-  m_ImageMetadata = nullptr;
+  m_ImageMetadata = &m_DefaultImageMetadata;;
 
   m_UseProjection = true;
   m_GeometryChanged = false;