comparison data/model/EditableDenseThreeDimensionalModel.h @ 534:6038cb6fcd30

* Some simple compression for dense 3d models that actually represent
  multirate data such as wavelet transform outputs.  If a column has
  many elements at top or bottom that are the same as those of an
  earlier column, store a reference to that one and truncate the
  duplicate values.

 
 protected:
     typedef QVector<Column> ValueMatrix;
     ValueMatrix m_data;
 
+    std::vector<signed char> m_trunc; // +ve -> top is truncated, -ve -> bottom
+    void truncateAndStore(size_t index, const Column & values);
+    Column expandAndRetrieve(size_t index) const;
+
     std::vector<QString> m_binNames;
 
     size_t m_sampleRate;
     size_t m_resolution;
     size_t m_yBinCount;