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Merge remote-tracking branch 'origin/BR_LAND_COVER' into BR_v14_rc
[modules/hydro.git] / src / HYDROData / HYDROData_CalculationCase.cxx
index 5ab5b3093d38276baaeb547b4f72d018c2645984..b0241aa91ba15b556d27f14eb7c47e5e85870665 100644 (file)
@@ -60,6 +60,7 @@
 #endif 
 #define CALCULATION_REGIONS_PREF GetName() + "_Reg"
 #define CALCULATION_ZONES_PREF GetName() + "_Zone"
+#define CALCULATION_LANDCOVER_ZONES_PREF GetName() + "_LandCoverZone"
 #define CALCULATION_GROUPS_PREF GetName() + "_"
 //#define DEB_CLASS2D 1
 #ifdef DEB_CLASS2D
@@ -85,33 +86,14 @@ void HYDROData_CalculationCase::SetName( const QString& theName )
   QString anOldCaseName = GetName();
   if ( anOldCaseName != theName )
   {
-    HYDROData_SequenceOfObjects aRegions = GetRegions();
-
-    HYDROData_SequenceOfObjects::Iterator anIter( aRegions );
-    for ( ; anIter.More(); anIter.Next() )
-    {
-      Handle(HYDROData_Region) aRegion =
-        Handle(HYDROData_Region)::DownCast( anIter.Value() );
-      if ( aRegion.IsNull() )
-        continue;
-
-      HYDROData_Tool::UpdateChildObjectName( anOldCaseName, theName, aRegion );
-
-      HYDROData_SequenceOfObjects aZones = aRegion->GetZones();
-      HYDROData_SequenceOfObjects::Iterator anIter( aZones );
-      for ( ; anIter.More(); anIter.Next() )
-      {
-        Handle(HYDROData_Zone) aRegZone =
-          Handle(HYDROData_Zone)::DownCast( anIter.Value() );
-        if ( aRegZone.IsNull() )
-          continue;
-
-        HYDROData_Tool::UpdateChildObjectName( anOldCaseName, theName, aRegZone );
-      }
-    }
+    // Update names of regions and its zones
+    UpdateRegionsNames( GetRegions( false ), anOldCaseName, theName );
+    // Update names of land cover regions and its zones
+    UpdateRegionsNames( GetRegions( true ), anOldCaseName, theName );
 
     HYDROData_SequenceOfObjects aGroups = GetSplittedGroups();
 
+    HYDROData_SequenceOfObjects::Iterator anIter;
     anIter.Init( aGroups );
     for ( ; anIter.More(); anIter.Next() )
     {
@@ -134,10 +116,14 @@ QStringList HYDROData_CalculationCase::DumpToPython( MapOfTreatedObjects& theTre
 
   QString aCalculName = GetObjPyName();
 
-  AssignmentMode aMode = GetAssignmentMode();
+  AssignmentMode aMode = GetAssignmentMode();  
   QString aModeStr = aMode==MANUAL ? "HYDROData_CalculationCase.MANUAL" : "HYDROData_CalculationCase.AUTOMATIC";
   aResList << QString( "%0.SetAssignmentMode( %1 )" ).arg( aCalculName ).arg( aModeStr );
 
+  AssignmentMode aModeLC = GetAssignmentLandCoverMode();
+  QString aModeLCStr = aModeLC==MANUAL ? "HYDROData_CalculationCase.MANUAL" : "HYDROData_CalculationCase.AUTOMATIC";
+  aResList << QString( "%0.SetAssignmentLandCoverMode( %1 )" ).arg( aCalculName ).arg( aModeLCStr );
+
   HYDROData_SequenceOfObjects aGeomObjects = GetGeometryObjects();
   HYDROData_SequenceOfObjects::Iterator anIter( aGeomObjects );
   for ( ; anIter.More(); anIter.Next() )
@@ -176,6 +162,8 @@ QStringList HYDROData_CalculationCase::DumpToPython( MapOfTreatedObjects& theTre
 
   if( aMode==AUTOMATIC )
     DumpRulesToPython( aCalculName, aResList );
+  if( aModeLC==AUTOMATIC )
+    DumpLandCoverRulesToPython( aCalculName, aResList );
 
   aResList << QString( "" );
   aResList << "# Start the algorithm of the partition and assignment";
@@ -183,20 +171,16 @@ QStringList HYDROData_CalculationCase::DumpToPython( MapOfTreatedObjects& theTre
 
   if( aMode==MANUAL )
   {
-    // Now we restore the regions and zones order
-    HYDROData_SequenceOfObjects aRegions = GetRegions();
-    anIter.Init( aRegions );
-    for ( ; anIter.More(); anIter.Next() )
-    {
-      Handle(HYDROData_Region) aRegion =
-        Handle(HYDROData_Region)::DownCast( anIter.Value() );
-      if ( aRegion.IsNull() )
-        continue;
+    // Now we restore the
+    // - regions and zones order
+    DumpRegionsToPython( aResList, theTreatedObjects, GetRegions( false ) );   
+  }
 
-      theTreatedObjects.insert( aRegion->GetName(), aRegion );
-      QStringList aRegDump = aRegion->DumpToPython( theTreatedObjects );
-      aResList << aRegDump;
-    }
+  if( aModeLC==MANUAL )
+  {
+    // Now we restore the
+    // - land cover regions and zones order
+    DumpRegionsToPython( aResList, theTreatedObjects, GetRegions( true ) );
   }
 
   // Export calculation case
@@ -268,9 +252,14 @@ HYDROData_SequenceOfObjects HYDROData_CalculationCase::GetAllReferenceObjects()
   if ( !aBoundaryPolyline.IsNull() )
     aResSeq.Append( aBoundaryPolyline );
 
-  HYDROData_SequenceOfObjects aSeqOfRegions = GetRegions();
+  // Regions
+  HYDROData_SequenceOfObjects aSeqOfRegions = GetRegions( false );
   aResSeq.Append( aSeqOfRegions );
 
+  // Land cover regions
+  HYDROData_SequenceOfObjects aSeqOfLandCoverRegions = GetRegions( true );
+  aResSeq.Append( aSeqOfLandCoverRegions );
+
   return aResSeq;
 }
 
@@ -280,62 +269,90 @@ void HYDROData_CalculationCase::Update()
   SetWarning();
 
   // At first we remove previously created objects
-  RemoveRegions();
+  RemoveRegions( false );
+  RemoveRegions( true );
   RemoveSplittedGroups();
 
   Handle(HYDROData_Document) aDocument = HYDROData_Document::Document( myLab );
   if ( aDocument.IsNull() )
     return;
 
+  // Split to zones
+  HYDROData_SplitToZonesTool::SplitDataList aZonesList, anEdgesList;
+
   Handle(HYDROData_PolylineXY) aBoundaryPolyline = GetBoundaryPolyline();
   HYDROData_SequenceOfObjects aGeomObjects = GetGeometryObjects();
-  if ( aGeomObjects.IsEmpty() )
-    return;
-
-  HYDROData_SequenceOfObjects aGeomGroups = GetGeometryGroups();
-
-  HYDROData_SplitToZonesTool::SplitDataList aSplitObjects =
-    HYDROData_SplitToZonesTool::Split( aGeomObjects, aGeomGroups, aBoundaryPolyline );
-  if ( aSplitObjects.isEmpty() )
-    return;
+  if ( !aGeomObjects.IsEmpty() ) {
+    HYDROData_SequenceOfObjects aGeomGroups = GetGeometryGroups();
+
+    HYDROData_SplitToZonesTool::SplitDataList aSplitObjects =
+      HYDROData_SplitToZonesTool::Split( aGeomObjects, aGeomGroups, aBoundaryPolyline );
+    if ( !aSplitObjects.isEmpty() ) {
+      HYDROData_SplitToZonesTool::SplitDataListIterator anIter( aSplitObjects );
+      while( anIter.hasNext() ) {
+        const HYDROData_SplitToZonesTool::SplitData& aSplitData = anIter.next();
+        if ( aSplitData.Type == HYDROData_SplitToZonesTool::SplitData::Data_Zone )
+          aZonesList.append( aSplitData );
+        else if ( aSplitData.Type == HYDROData_SplitToZonesTool::SplitData::Data_Edge )
+          anEdgesList.append( aSplitData );
+      }
+    }
+  }
 
-  HYDROData_SplitToZonesTool::SplitDataList aZonesList, anEdgesList;
+  // Split to land cover zones
+  HYDROData_SplitToZonesTool::SplitDataList aLandCoverZonesList;
+
+  HYDROData_SequenceOfObjects aLandCovers = GetLandCovers();
+  if ( !aLandCovers.IsEmpty() ) {
+    HYDROData_SplitToZonesTool::SplitDataList aSplitLandCoverObjects =
+      HYDROData_SplitToZonesTool::Split( aLandCovers );
+    if ( !aSplitLandCoverObjects.isEmpty() ) {
+      HYDROData_SplitToZonesTool::SplitDataListIterator anIter( aSplitLandCoverObjects );
+      while( anIter.hasNext() ) {
+        const HYDROData_SplitToZonesTool::SplitData& aSplitData = anIter.next();
+        if ( aSplitData.Type == HYDROData_SplitToZonesTool::SplitData::Data_Zone )
+          aLandCoverZonesList.append( aSplitData );
+      }
+    }
+  }
 
-  HYDROData_SplitToZonesTool::SplitDataListIterator anIter( aSplitObjects );
-  while( anIter.hasNext() )
+  switch( GetAssignmentMode() )
   {
-    const HYDROData_SplitToZonesTool::SplitData& aSplitData = anIter.next();
-    if ( aSplitData.Type == HYDROData_SplitToZonesTool::SplitData::Data_Zone )
-      aZonesList.append( aSplitData );
-    else if ( aSplitData.Type == HYDROData_SplitToZonesTool::SplitData::Data_Edge )
-      anEdgesList.append( aSplitData );
+  case MANUAL:
+    CreateRegionsDef( aDocument, aZonesList, false );    
+    break;
+  case AUTOMATIC:
+    CreateRegionsAuto( aDocument, aZonesList, false );    
+    break;
   }
 
-  switch( GetAssignmentMode() )
+  switch( GetAssignmentLandCoverMode() )
   {
   case MANUAL:
-    CreateRegionsDef( aDocument, aZonesList );
+    CreateRegionsDef( aDocument, aLandCoverZonesList, true );
     break;
   case AUTOMATIC:
-    CreateRegionsAuto( aDocument, aZonesList );
+    CreateRegionsAuto( aDocument, aLandCoverZonesList, true );
     break;
   }
+
   CreateEdgeGroupsDef( aDocument, anEdgesList );
 }
 
 void HYDROData_CalculationCase::CreateRegionsDef( const Handle(HYDROData_Document)& theDoc,
-                                                  const HYDROData_SplitToZonesTool::SplitDataList& theZones )
+                                                  const HYDROData_SplitToZonesTool::SplitDataList& theZones,
+                                                  const bool theLandCover )
 {
   // Create result regions for case, by default one zone for one region
   QString aRegsPref = CALCULATION_REGIONS_PREF;
-  QString aZonesPref = CALCULATION_ZONES_PREF;
+  QString aZonesPref = theLandCover ? CALCULATION_LANDCOVER_ZONES_PREF : CALCULATION_ZONES_PREF;
 
   HYDROData_SplitToZonesTool::SplitDataListIterator anIter( theZones );
   while( anIter.hasNext() )
   {
     const HYDROData_SplitToZonesTool::SplitData& aSplitData = anIter.next();
     // Create new region
-    Handle(HYDROData_Region) aRegion = addNewRegion( theDoc, aRegsPref );
+    Handle(HYDROData_Region) aRegion = addNewRegion( theDoc, aRegsPref, theLandCover );
 
     // Add the zone for region
     Handle(HYDROData_Zone) aRegionZone = aRegion->addNewZone( theDoc, aZonesPref, aSplitData.Face(), aSplitData.ObjectNames );
@@ -343,23 +360,24 @@ void HYDROData_CalculationCase::CreateRegionsDef( const Handle(HYDROData_Documen
 }
 
 void HYDROData_CalculationCase::CreateRegionsAuto( const Handle(HYDROData_Document)& theDoc,
-                                                   const HYDROData_SplitToZonesTool::SplitDataList& theZones )
+                                                   const HYDROData_SplitToZonesTool::SplitDataList& theZones,
+                                                   const bool theLandCover )
 {
   QMap<QString, Handle(HYDROData_Region)> aRegionsMap; //object name to region
   QMap<QString, QString> aRegionNameToObjNameMap;
-  QString aZonesPref = CALCULATION_ZONES_PREF;
-  HYDROData_PriorityQueue aPr( this, DataTag_CustomRules );
+  QString aZonesPref = theLandCover ? CALCULATION_LANDCOVER_ZONES_PREF : CALCULATION_ZONES_PREF;
+  HYDROData_PriorityQueue aPr( this, theLandCover ? DataTag_CustomLandCoverRules : DataTag_CustomRules );
 
   // 1. First we create a default region for each object included into the calculation case
-  HYDROData_SequenceOfObjects aGeomObjects = GetGeometryObjects();
-  for( int i=aGeomObjects.Lower(), n=aGeomObjects.Upper(); i<=n; i++ )
+  HYDROData_SequenceOfObjects anObjects = theLandCover ? GetLandCovers() : GetGeometryObjects();
+  for( int i = anObjects.Lower(), n = anObjects.Upper(); i<=n; i++ )
   {
-    Handle(HYDROData_Object) anObj = Handle(HYDROData_Object)::DownCast( aGeomObjects.Value( i ) );
+    Handle(HYDROData_Entity) anObj = anObjects.Value( i );
     if( anObj.IsNull() )
       continue;
     QString anObjName = anObj->GetName();
     QString aRegName = anObjName + "_reg";
-    Handle(HYDROData_Region) aRegion = addNewRegion( theDoc, aRegName, false );
+    Handle(HYDROData_Region) aRegion = addNewRegion( theDoc, aRegName, theLandCover, false );
     aRegionsMap.insert( anObjName, aRegion );
     aRegionNameToObjNameMap.insert( aRegName, anObjName );
   }
@@ -370,9 +388,8 @@ void HYDROData_CalculationCase::CreateRegionsAuto( const Handle(HYDROData_Docume
   while( anIter.hasNext() )
   {
     const HYDROData_SplitToZonesTool::SplitData& aSplitData = anIter.next();
-    HYDROData_Zone::MergeAltitudesType aMergeType;
-    Handle(HYDROData_Object) aRegObj =
-      Handle(HYDROData_Object)::DownCast( aPr.GetMostPriorityObject( aSplitData.ObjectNames, aMergeType ) );
+    HYDROData_Zone::MergeType aMergeType;
+    Handle(HYDROData_Entity) aRegObj = aPr.GetMostPriorityObject( aSplitData.ObjectNames, aMergeType );
     if( aRegObj.IsNull() )
       continue;
     Handle(HYDROData_Region) aRegion = aRegionsMap[aRegObj->GetName()];
@@ -385,6 +402,14 @@ void HYDROData_CalculationCase::CreateRegionsAuto( const Handle(HYDROData_Docume
       qDebug( "Error in algorithm: unresolved conflicts" );
     }
 
+    Handle(HYDROData_Entity) aMergeEntity = aRegObj;
+    if ( !theLandCover ) {
+      Handle(HYDROData_Object) aMergeObject = Handle(HYDROData_Object)::DownCast( aMergeEntity );
+      if ( !aMergeObject.IsNull() ) {
+        aMergeEntity = aMergeObject->GetAltitudeObject();
+      }
+    }
+
     switch( aMergeType )
     {
     case HYDROData_Zone::Merge_ZMIN:
@@ -393,8 +418,8 @@ void HYDROData_CalculationCase::CreateRegionsAuto( const Handle(HYDROData_Docume
       break;
     case HYDROData_Zone::Merge_Object:
       aRegionZone->SetMergeType( aMergeType );
-      aRegionZone->RemoveMergeAltitude();
-      aRegionZone->SetMergeAltitude( aRegObj->GetAltitudeObject() );
+      aRegionZone->RemoveMergeObject();
+      aRegionZone->SetMergeObject( aMergeEntity );
       break;
     }
   }
@@ -626,10 +651,11 @@ void HYDROData_CalculationCase::RemoveLandCovers()
   SetToUpdate( true );
 }
 
-Handle(HYDROData_Region) HYDROData_CalculationCase::AddNewRegion( const Handle(HYDROData_Zone)& theZone )
+Handle(HYDROData_Region) HYDROData_CalculationCase::AddNewRegion( const Handle(HYDROData_Zone)& theZone,
+                                                                  const bool theLandCover )
 {
   Handle(HYDROData_Document) aDocument = HYDROData_Document::Document( myLab );
-  Handle(HYDROData_Region) aNewRegion = addNewRegion( aDocument, CALCULATION_REGIONS_PREF );
+  Handle(HYDROData_Region) aNewRegion = addNewRegion( aDocument, CALCULATION_REGIONS_PREF, theLandCover );
   if ( aNewRegion.IsNull() )
     return aNewRegion;
 
@@ -638,14 +664,18 @@ Handle(HYDROData_Region) HYDROData_CalculationCase::AddNewRegion( const Handle(H
   return aNewRegion;
 }
 
-bool HYDROData_CalculationCase::AddRegion( const Handle(HYDROData_Region)& theRegion )
+bool HYDROData_CalculationCase::AddRegion( const Handle(HYDROData_Region)& theRegion,
+                                           const bool theLandCover )
 {
   Handle(HYDROData_Document) aDocument = HYDROData_Document::Document( myLab );
 
   if ( theRegion.IsNull() )
     return false;
   
-  if ( HasReference( theRegion, DataTag_Region ) )
+  HYDROData_CalculationCase::DataTag aDataTag = 
+    theLandCover ? DataTag_LandCoverRegion : DataTag_Region;
+
+  if ( HasReference( theRegion, aDataTag ) )
     return false; // Object is already in reference list
 
   // Move the region from other calculation
@@ -653,24 +683,24 @@ bool HYDROData_CalculationCase::AddRegion( const Handle(HYDROData_Region)& theRe
     Handle(HYDROData_CalculationCase)::DownCast( theRegion->GetFatherObject() );
   if ( !aFatherCalc.IsNull() && aFatherCalc->Label() != myLab )
   {
-    Handle(HYDROData_Region) aNewRegion = addNewRegion( aDocument, CALCULATION_REGIONS_PREF );
+    Handle(HYDROData_Region) aNewRegion = addNewRegion( aDocument, CALCULATION_REGIONS_PREF, theLandCover );
     theRegion->CopyTo( aNewRegion );
 
-    aFatherCalc->RemoveRegion( theRegion );
+    aFatherCalc->RemoveRegion( theRegion, theLandCover );
 
     theRegion->SetLabel( aNewRegion->Label() );
   }
   else
   {
-    AddReferenceObject( theRegion, DataTag_Region );
+    AddReferenceObject( theRegion, aDataTag );
   }
 
   return true;
 }
 
-HYDROData_SequenceOfObjects HYDROData_CalculationCase::GetRegions() const
+HYDROData_SequenceOfObjects HYDROData_CalculationCase::GetRegions( const bool theLandCover ) const
 {
-  return GetReferenceObjects( DataTag_Region );
+  return GetReferenceObjects( theLandCover ? DataTag_LandCoverRegion : DataTag_Region );
 }
 
 void HYDROData_CalculationCase::UpdateRegionsOrder()
@@ -679,7 +709,9 @@ void HYDROData_CalculationCase::UpdateRegionsOrder()
   if ( aDocument.IsNull() )
     return;
 
-  HYDROData_SequenceOfObjects aRegions = GetRegions();
+  HYDROData_SequenceOfObjects aRegions = GetRegions( false );
+  HYDROData_SequenceOfObjects aRegionsLC = GetRegions( true );
+  aRegions.Append( aRegionsLC );
 
   HYDROData_SequenceOfObjects::Iterator anIter( aRegions );
   for ( ; anIter.More(); anIter.Next() )
@@ -707,12 +739,15 @@ void HYDROData_CalculationCase::UpdateRegionsOrder()
   }
 }
 
-void HYDROData_CalculationCase::RemoveRegion( const Handle(HYDROData_Region)& theRegion )
+void HYDROData_CalculationCase::RemoveRegion( const Handle(HYDROData_Region)& theRegion,
+                                              const bool theLandCover )
 {
   if ( theRegion.IsNull() )
     return;
 
-  RemoveReferenceObject( theRegion->Label(), DataTag_Region );
+  HYDROData_CalculationCase::DataTag aDataTag = 
+    theLandCover ? DataTag_LandCoverRegion : DataTag_Region;
+  RemoveReferenceObject( theRegion->Label(), aDataTag );
 
   // Remove region from data model
   Handle(HYDROData_CalculationCase) aFatherCalc = 
@@ -721,9 +756,9 @@ void HYDROData_CalculationCase::RemoveRegion( const Handle(HYDROData_Region)& th
     theRegion->Remove();
 }
 
-void HYDROData_CalculationCase::RemoveRegions()
+void HYDROData_CalculationCase::RemoveRegions( const bool theLandCover )
 {
-  myLab.FindChild( DataTag_ChildRegion ).ForgetAllAttributes();
+  myLab.FindChild( theLandCover ? DataTag_ChildLandCoverRegion : DataTag_ChildRegion ).ForgetAllAttributes();
 }
 
 HYDROData_SequenceOfObjects HYDROData_CalculationCase::GetSplittedGroups() const
@@ -738,7 +773,7 @@ void HYDROData_CalculationCase::RemoveSplittedGroups()
 
 double HYDROData_CalculationCase::GetAltitudeForPoint( const gp_XY& thePoint ) const
 {
-  Handle(HYDROData_Zone) aZone = GetZoneFromPoint( thePoint );
+  Handle(HYDROData_Zone) aZone = GetZoneFromPoint( thePoint, false );
   return GetAltitudeForPoint( thePoint, aZone );
 }
 
@@ -747,7 +782,7 @@ double HYDROData_CalculationCase::GetAltitudeForPoint( const gp_XY&
 {
   double aResAltitude = HYDROData_IAltitudeObject::GetInvalidAltitude();
 
-  Handle(HYDROData_Zone) aZone = GetZoneFromPoint( thePoint );
+  Handle(HYDROData_Zone) aZone = GetZoneFromPoint( thePoint, false );
   if ( !aZone.IsNull() )
   {
     Handle(HYDROData_Region) aRefRegion = Handle(HYDROData_Region)::DownCast( aZone->GetFatherObject() );
@@ -765,7 +800,7 @@ double HYDROData_CalculationCase::GetAltitudeForPoint( const gp_XY&
   if ( theZone.IsNull() )
     return aResAltitude;
 
-  HYDROData_Zone::MergeAltitudesType aZoneMergeType = theZone->GetMergeType();
+  HYDROData_Zone::MergeType aZoneMergeType = theZone->GetMergeType();
   if ( !theZone->IsMergingNeed() )
   {
     aZoneMergeType = HYDROData_Zone::Merge_UNKNOWN;
@@ -778,7 +813,8 @@ double HYDROData_CalculationCase::GetAltitudeForPoint( const gp_XY&
   HYDROData_IInterpolator* aZoneInterpolator = theZone->GetInterpolator();
   if ( aZoneMergeType == HYDROData_Zone::Merge_Object )
   {
-    Handle(HYDROData_IAltitudeObject) aMergeAltitude = theZone->GetMergeAltitude();
+    Handle(HYDROData_IAltitudeObject) aMergeAltitude = 
+      Handle(HYDROData_IAltitudeObject)::DownCast( theZone->GetMergeObject() );
     if ( !aMergeAltitude.IsNull() )
     {
       if ( aZoneInterpolator != NULL )
@@ -792,7 +828,7 @@ double HYDROData_CalculationCase::GetAltitudeForPoint( const gp_XY&
   }
   else
   {
-    HYDROData_SequenceOfObjects aZoneObjects = theZone->GetGeometryObjects();
+    HYDROData_SequenceOfObjects aZoneObjects = theZone->GetObjects();
     HYDROData_SequenceOfObjects::Iterator anIter( aZoneObjects );
     for ( ; anIter.More(); anIter.Next() )
     {
@@ -878,22 +914,56 @@ NCollection_Sequence<double> HYDROData_CalculationCase::GetAltitudesForPoints(
   return aResSeq;
 }
 
-Handle(HYDROData_Region) HYDROData_CalculationCase::GetRegionFromPoint( const gp_XY& thePoint ) const
+double HYDROData_CalculationCase::GetStricklerCoefficientForPoint( const gp_XY& thePoint ) const
+{
+    double aCoeff = 0;
+    Handle(HYDROData_Document) aDocument = HYDROData_Document::Document( myLab );
+    if ( !aDocument.IsNull() )
+        aCoeff = aDocument->GetDefaultStricklerCoefficient();
+
+    Handle(HYDROData_LandCover) aLandCover;
+    Handle(HYDROData_Zone) aZone = GetZoneFromPoint( thePoint, Standard_True );
+    if ( !aZone.IsNull() )
+    {
+        HYDROData_SequenceOfObjects anObjList = aZone->GetObjects();
+        if ( anObjList.Length() == 1 )
+            aLandCover = Handle(HYDROData_LandCover)::DownCast( anObjList.First() );
+        else
+            aLandCover = Handle(HYDROData_LandCover)::DownCast( aZone->GetMergeObject() );
+    }
+
+    if ( !aLandCover.IsNull() )
+    {
+        QString aType = aLandCover->GetStricklerType();
+        Handle(HYDROData_StricklerTable) aTable = GetStricklerTable();
+        if ( !aTable.IsNull() )
+        {
+            if ( aTable->GetTypes().contains( aType ) )
+                aCoeff = aTable->Get( aType, aCoeff );
+        }
+    }
+
+    return aCoeff;
+}
+
+Handle(HYDROData_Region) HYDROData_CalculationCase::GetRegionFromPoint( const gp_XY& thePoint,
+                                                                        const bool theLandCover ) const
 {
   Handle(HYDROData_Region) aResRegion;
 
-  Handle(HYDROData_Zone) aZone = GetZoneFromPoint( thePoint );
+  Handle(HYDROData_Zone) aZone = GetZoneFromPoint( thePoint, theLandCover );
   if ( !aZone.IsNull() )
     aResRegion = Handle(HYDROData_Region)::DownCast( aZone->GetFatherObject() );
 
   return aResRegion;
 }
 
-Handle(HYDROData_Zone) HYDROData_CalculationCase::GetZoneFromPoint( const gp_XY& thePoint ) const
+Handle(HYDROData_Zone) HYDROData_CalculationCase::GetZoneFromPoint( const gp_XY& thePoint,
+                                                                    const bool theLandCover ) const
 {
   Handle(HYDROData_Zone) aResZone;
 
-  HYDROData_SequenceOfObjects aRegions = GetRegions();
+  HYDROData_SequenceOfObjects aRegions = GetRegions( theLandCover );
 
   HYDROData_SequenceOfObjects::Iterator anIter( aRegions );
   for ( ; anIter.More() && aResZone.IsNull(); anIter.Next() )
@@ -954,14 +1024,15 @@ HYDROData_CalculationCase::PointClassification HYDROData_CalculationCase::GetPoi
 
 Handle(HYDROData_Region) HYDROData_CalculationCase::addNewRegion( const Handle(HYDROData_Document)& theDoc,
                                                                   const QString& thePrefixOrName,
+                                                                  const bool theLandCover,
                                                                   bool isPrefix )
 {
-  TDF_Label aNewLab = myLab.FindChild( DataTag_ChildRegion ).NewChild();
+  TDF_Label aNewLab = myLab.FindChild( theLandCover ? DataTag_ChildLandCoverRegion : DataTag_ChildRegion ).NewChild();
   int aTag = aNewLab.Tag();
 
   Handle(HYDROData_Region) aNewRegion =
     Handle(HYDROData_Region)::DownCast( HYDROData_Iterator::CreateObject( aNewLab, KIND_REGION ) );
-  AddRegion( aNewRegion );
+  AddRegion( aNewRegion, theLandCover );
 
   QString aRegionName = isPrefix ? HYDROData_Tool::GenerateObjectName( theDoc, thePrefixOrName ) : thePrefixOrName;
   aNewRegion->SetName( aRegionName );
@@ -988,14 +1059,15 @@ QString HYDROData_CalculationCase::Export( int theStudyId ) const
   GEOM::GEOM_Gen_var aGEOMEngine = HYDROData_GeomTool::GetGeomGen();
   SALOMEDS::Study_var aDSStudy = HYDROData_GeomTool::GetStudyByID( theStudyId );
   
-  QString aGeomObjEntry;
-  bool isOK = Export( aGEOMEngine, aDSStudy, aGeomObjEntry );
+  QString aGeomObjEntry, anErrorMsg;
+  bool isOK = Export( aGEOMEngine, aDSStudy, aGeomObjEntry, anErrorMsg );
   return isOK ? aGeomObjEntry : QString();
 }
 
 bool HYDROData_CalculationCase::Export( GEOM::GEOM_Gen_var  theGeomEngine,
                                         SALOMEDS::Study_ptr theStudy,
-                                        QString& theGeomObjEntry ) const
+                                        QString& theGeomObjEntry,
+                                        QString& theErrorMsg ) const
 {
   HYDROData_ShapesGroup::SeqOfGroupsDefs aSeqOfGroupsDefs;
 
@@ -1020,8 +1092,9 @@ bool HYDROData_CalculationCase::Export( GEOM::GEOM_Gen_var  theGeomEngine,
   }
   
   // Get faces
+  bool isAllNotSubmersible = true;
   TopTools_ListOfShape aFaces;
-  HYDROData_SequenceOfObjects aCaseRegions = GetRegions();
+  HYDROData_SequenceOfObjects aCaseRegions = GetRegions( false );
   HYDROData_SequenceOfObjects::Iterator aRegionIter( aCaseRegions );
   for ( ; aRegionIter.More(); aRegionIter.Next() )
   {
@@ -1029,12 +1102,25 @@ bool HYDROData_CalculationCase::Export( GEOM::GEOM_Gen_var  theGeomEngine,
       Handle(HYDROData_Region)::DownCast( aRegionIter.Value() );
     if( aRegion.IsNull() || !aRegion->IsSubmersible() )
       continue;
+    
+    if ( isAllNotSubmersible )
+      isAllNotSubmersible = false;
 
     TopoDS_Shape aRegionShape = aRegion->GetShape( &aSeqOfGroupsDefs );
     aFaces.Append( aRegionShape );
   }
 
-  return Export( theGeomEngine, theStudy, aFaces, aSeqOfGroupsDefs, theGeomObjEntry );
+  bool aRes = false;
+
+  if ( aCaseRegions.IsEmpty() ) {
+    theErrorMsg = QString("the list of regions is empty.");
+  } else if ( isAllNotSubmersible ) {
+    theErrorMsg = QString("there are no submersible regions.");
+  } else {
+    aRes = Export( theGeomEngine, theStudy, aFaces, aSeqOfGroupsDefs, theGeomObjEntry );;
+  }
+
+  return aRes;
 }
 
 bool HYDROData_CalculationCase::Export( GEOM::GEOM_Gen_var                            theGeomEngine,
@@ -1207,7 +1293,7 @@ void HYDROData_CalculationCase::ClearRules( HYDROData_CalculationCase::DataTag t
 void HYDROData_CalculationCase::AddRule( const Handle(HYDROData_Entity)&    theObject1,
                                          HYDROData_PriorityType             thePriority,
                                          const Handle(HYDROData_Entity)&    theObject2,
-                                         HYDROData_Zone::MergeAltitudesType theMergeType,
+                                         HYDROData_Zone::MergeType          theMergeType,
                                          HYDROData_CalculationCase::DataTag theDataTag )
 {
   TDF_Label aRulesLab = myLab.FindChild( theDataTag );
@@ -1223,6 +1309,12 @@ QString HYDROData_CalculationCase::DumpRules() const
   return HYDROData_PriorityQueue::DumpRules( aRulesLab );
 }
 
+QString HYDROData_CalculationCase::DumpLandCoverRules() const
+{
+  TDF_Label aRulesLab = myLab.FindChild( DataTag_CustomLandCoverRules );
+  return HYDROData_PriorityQueue::DumpRules( aRulesLab );
+}
+
 void HYDROData_CalculationCase::SetAssignmentMode( AssignmentMode theMode )
 {
   TDF_Label aModeLab = myLab.FindChild( DataTag_AssignmentMode );
@@ -1249,6 +1341,13 @@ void HYDROData_CalculationCase::DumpRulesToPython( const QString& theCalcCaseNam
   HYDROData_PriorityQueue::DumpRulesToPython( aRulesLab, theCalcCaseName, theScript );
 }
 
+void HYDROData_CalculationCase::DumpLandCoverRulesToPython( const QString& theCalcCaseName,
+                                                            QStringList& theScript ) const
+{
+  TDF_Label aRulesLab = myLab.FindChild( DataTag_CustomLandCoverRules );
+  HYDROData_PriorityQueue::DumpRulesToPython( aRulesLab, theCalcCaseName, theScript );
+}
+
 HYDROData_Warning HYDROData_CalculationCase::GetLastWarning() const
 {
   return myLastWarning;
@@ -1260,11 +1359,58 @@ void HYDROData_CalculationCase::SetWarning( HYDROData_WarningType theType, const
   myLastWarning.Data = theData;
 }
 
+void HYDROData_CalculationCase::UpdateRegionsNames( const HYDROData_SequenceOfObjects& theRegions,
+                                                    const QString& theOldCaseName,
+                                                    const QString& theName )
+{
+  HYDROData_SequenceOfObjects::Iterator anIter( theRegions );
+  for ( ; anIter.More(); anIter.Next() )
+  {
+    Handle(HYDROData_Region) aRegion =
+      Handle(HYDROData_Region)::DownCast( anIter.Value() );
+    if ( aRegion.IsNull() )
+      continue;
+
+    HYDROData_Tool::UpdateChildObjectName( theOldCaseName, theName, aRegion );
+
+    HYDROData_SequenceOfObjects aZones = aRegion->GetZones();
+    HYDROData_SequenceOfObjects::Iterator anIter( aZones );
+    for ( ; anIter.More(); anIter.Next() )
+    {
+      Handle(HYDROData_Zone) aRegZone =
+        Handle(HYDROData_Zone)::DownCast( anIter.Value() );
+      if ( aRegZone.IsNull() )
+        continue;
+
+      HYDROData_Tool::UpdateChildObjectName( theOldCaseName, theName, aRegZone );
+    }
+  }
+}
+
+void HYDROData_CalculationCase::DumpRegionsToPython( QStringList& theResList,
+                                                     MapOfTreatedObjects& theTreatedObjects,
+                                                     const HYDROData_SequenceOfObjects& theRegions ) const
+{
+  HYDROData_SequenceOfObjects::Iterator anIter;
+  anIter.Init( theRegions );
+  for ( ; anIter.More(); anIter.Next() )
+  {
+    Handle(HYDROData_Region) aRegion =
+      Handle(HYDROData_Region)::DownCast( anIter.Value() );
+    if ( aRegion.IsNull() )
+      continue;
+
+    theTreatedObjects.insert( aRegion->GetName(), aRegion );
+    QStringList aRegDump = aRegion->DumpToPython( theTreatedObjects );
+    theResList << aRegDump;
+  }
+}
+
 bool HYDROData_CalculationCase::GetRule( int theIndex, 
                                          Handle(HYDROData_Entity)&           theObject1,
                                          HYDROData_PriorityType&             thePriority,
                                          Handle(HYDROData_Entity)&           theObject2,
-                                         HYDROData_Zone::MergeAltitudesType& theMergeType,
+                                         HYDROData_Zone::MergeType&          theMergeType,
                                          HYDROData_CalculationCase::DataTag& theDataTag) const
 {
   TDF_Label aRulesLab = myLab.FindChild( theDataTag );