Minor feature generation fixes.

generator/coastlines_generator.cpp

@@ -5,6 +5,8 @@
 
 #include "../geometry/region2d/binary_operators.hpp"
 
+#include "../base/string_utils.hpp"
+
 #include "../std/bind.hpp"
 
 
@@ -167,6 +169,10 @@ bool CoastlineFeaturesGenerator::GetFeature(size_t i, FeatureBuilder1 & fb)
   m_tree.ForEachInRect(GetLimitRect(rectR), bind<void>(ref(doDiff), _1));
 
   // assign feature
+  FeatureParams params;
+  params.name.AddString(0, strings::to_string(i));
+  fb.SetParams(params);
+
   doDiff.AssignGeometry(fb);
   fb.SetArea();
   fb.AddType(m_coastType);

generator/feature_builder.cpp

@@ -201,9 +201,8 @@ bool FeatureBuilder1::CheckValid() const
 
   if (type == GEOM_AREA)
   {
-    // Use '4' because the first point should be equal with the last one
     for (list<points_t>::const_iterator i = m_Polygons.begin(); i != m_Polygons.end(); ++i)
-      CHECK(i->size() >= 4, ());
+      CHECK(i->size() >= 3, ());
   }
 
   return true;

generator/feature_builder.hpp

@@ -83,6 +83,7 @@ public:
 
   bool PreSerialize();
 
+  /// Note! This function overrides all previous assigned types.
   inline void SetParams(FeatureParams const & params) { m_Params = params; }
 
   /// For OSM debugging, store original OSM id

generator/feature_sorter.cpp

@@ -436,7 +436,6 @@ namespace feature
 
       FeaturesCollector2 collector(datFilePath, header);
 
-      FeatureBuilder1::buffer_t buffer;
       for (size_t i = 0; i < midPoints.m_vec.size(); ++i)
       {
         ReaderSource<FileReader> src(reader);