1 files changed, 31 insertions, 0 deletions
diff --git a/generator/feature_merger.cpp b/generator/feature_merger.cpp
new file mode 100644
index 0000000000..b4ecbf82fc
--- /dev/null
+++ b/generator/feature_merger.cpp
@@ -0,0 +1,31 @@
+#include "feature_merger.hpp"
+
+#include "../base/logging.hpp"
+
+#define MAX_MERGED_POINTS_COUNT 10000
+
+FeatureBuilder1Merger::FeatureBuilder1Merger(FeatureBuilder1 const & fb)
+  : FeatureBuilder1(fb)
+{
+}
+
+bool FeatureBuilder1Merger::ReachedMaxPointsCount() const
+{
+  return (m_Geometry.size() > MAX_MERGED_POINTS_COUNT);
+}
+
+void FeatureBuilder1Merger::AppendFeature(FeatureBuilder1Merger const & fb)
+{
+  // check that both features are of linear type
+  CHECK(fb.m_bLinear && m_bLinear, ("Not linear feature"));
+
+  // check that classificator types are the same
+  CHECK_EQUAL(fb.m_Types, m_Types, ("Not equal types"));
+
+  // check last-first points equality
+  CHECK_EQUAL(m_Geometry.back(), fb.m_Geometry.front(), ("End and Start point are no equal"));
+  // merge fb at the end
+  size_t const size = fb.m_Geometry.size();
+  for (size_t i = 1; i < size; ++i)
+    AddPoint(fb.m_Geometry[i]);
+}