#5960 Roff import: pick colors from best matching items in Rock Type color legend.

ApplicationCode/Commands/RicImportFaciesFeature.cpp

@@ -21,6 +21,7 @@
 #include "RiaApplication.h"
 #include "RiaColorTables.h"
 #include "RiaLogging.h"
+#include "RiaStdStringTools.h"
 
 #include "RimColorLegend.h"
 #include "RimColorLegendCollection.h"
@@ -76,21 +77,29 @@ void RicImportFaciesFeature::onActionTriggered( bool isChecked )
         return;
     }
 
-    // TODO: try to map names of facies to a sensible color
-    const caf::ColorTable& colorTable = RiaColorTables::contrastCategoryPaletteColors();
+    const caf::ColorTable&    colorTable            = RiaColorTables::contrastCategoryPaletteColors();
+    RimColorLegendCollection* colorLegendCollection = RimProject::current()->colorLegendCollection;
+    RimColorLegend*           rockTypeColorLegend   = colorLegendCollection->findByName( "Rock Types" );
 
     RimColorLegend* colorLegend = new RimColorLegend;
     colorLegend->setColorLegendName( "Facies colors" );
 
-    // Iterate over the map using Iterator till end.
     for ( auto it : codeNames )
     {
         RimColorLegendItem* colorLegendItem = new RimColorLegendItem;
-        colorLegendItem->setValues( it.second, it.first, colorTable.cycledColor3f( it.first ) );
+
+        // Try to find a color from the rock type color legend by fuzzy matching names
+        cvf::Color3f color;
+        if ( !matchByName( it.second, rockTypeColorLegend, color ) )
+        {
+            // No match use a random color
+            color = colorTable.cycledColor3f( it.first );
+        }
+
+        colorLegendItem->setValues( it.second, it.first, color );
         colorLegend->appendColorLegendItem( colorLegendItem );
     }
 
-    RimColorLegendCollection* colorLegendCollection = RimProject::current()->colorLegendCollection;
     colorLegendCollection->appendCustomColorLegend( colorLegend );
     colorLegendCollection->updateConnectedEditors();
 }
@@ -104,3 +113,56 @@ void RicImportFaciesFeature::setupActionLook( QAction* actionToSetup )
     // actionToSetup->setIcon( QIcon( ":/Formations16x16.png" ) );
     actionToSetup->setText( "Import Facies" );
 }
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+bool RicImportFaciesFeature::matchByName( const QString name, RimColorLegend* colorLegend, cvf::Color3f& color )
+{
+    // No match if color legend does not exist
+    if ( !colorLegend ) return false;
+
+    // Find the best matching name from the legend
+    int                 bestScore = std::numeric_limits<int>::max();
+    RimColorLegendItem* bestItem  = nullptr;
+    for ( RimColorLegendItem* item : colorLegend->colorLegendItems() )
+    {
+        int score = computeEditDistance( name, item->categoryName() );
+        if ( score < bestScore )
+        {
+            bestScore = score;
+            bestItem  = item;
+        }
+    }
+
+    // Allow only small difference when determining if something matches
+    const int maximumScoreToMatch = 1;
+    if ( bestScore <= maximumScoreToMatch )
+    {
+        color = bestItem->color();
+        return true;
+    }
+
+    return false;
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+int RicImportFaciesFeature::computeEditDistance( const QString& a, const QString& b )
+{
+    // Remove common words from the domain which does not help in the matching
+    std::vector<QString> stopWords   = { "rocks", "rock", "stones", "stone" };
+    QString              aSimplified = a.toLower();
+    QString              bSimplified = b.toLower();
+    for ( auto r : stopWords )
+    {
+        aSimplified.remove( r );
+        bSimplified.remove( r );
+    }
+
+    aSimplified = aSimplified.trimmed();
+    bSimplified = bSimplified.trimmed();
+
+    return RiaStdStringTools::computeEditDistance( aSimplified.toStdString(), bSimplified.toStdString() );
+}

ApplicationCode/Commands/RicImportFaciesFeature.h

@@ -20,6 +20,12 @@
 
 #include "cafCmdFeature.h"
 
+class RimColorLegend;
+namespace cvf
+{
+class Color3f;
+}
+
 //==================================================================================================
 ///
 //==================================================================================================
@@ -31,4 +37,8 @@ protected:
     bool isCommandEnabled() override;
     void onActionTriggered( bool isChecked ) override;
     void setupActionLook( QAction* actionToSetup ) override;
+
+private:
+    int  computeEditDistance( const QString& a, const QString& b );
+    bool matchByName( const QString name, RimColorLegend* colorLegend, cvf::Color3f& color );
 };