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retrieve first and last nodes of a compressed segment

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This commit is contained in:
Dennis Luxen 2014-10-16 15:42:33 +02:00
parent 91ced39233
commit 577cf5ddc4
2 changed files with 16 additions and 0 deletions
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14
Contractor/GeometryCompressor.cpp
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@ -225,3 +225,17 @@ GeometryCompressor::GetBucketReference(const EdgeID edge_id) const
const unsigned index = m_edge_id_to_list_index_map.at(edge_id);
return m_compressed_geometries.at(index);
}
NodeID GeometryCompressor::GetFirstNodeIDOfBucket(const EdgeID edge_id) const
{
const auto &bucket = GetBucketReference(edge_id);
BOOST_ASSERT(bucket.size() >= 2);
return bucket[1].first;
}
NodeID GeometryCompressor::GetLastNodeIDOfBucket(const EdgeID edge_id) const
{
const auto &bucket = GetBucketReference(edge_id);
BOOST_ASSERT(bucket.size() >= 2);
return bucket[bucket.size()-2].first;
}

2
Contractor/GeometryCompressor.h
View File

@ -54,6 +54,8 @@ class GeometryCompressor
unsigned GetPositionForID(const EdgeID edge_id) const;
const std::vector<GeometryCompressor::CompressedNode> &
GetBucketReference(const EdgeID edge_id) const;
NodeID GetFirstNodeIDOfBucket(const EdgeID edge_id) const;
NodeID GetLastNodeIDOfBucket(const EdgeID edge_id) const;
private:
void IncreaseFreeList();