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gtsam/linear/VectorValues.h

@@ -104,7 +104,7 @@ public:
   const Vector& values() const { return values_ ; }
   Vector& values() { return values_ ; }
 
-  /* return the dimension spec of this vector*/
+  /* return the dimension spec of this vector, i.e. the dimension of each variable */
   template <typename T>
   std::vector<T> getDimSpec() const {
     const Index n = this->size() ;
@@ -115,6 +115,11 @@ public:
     return spec;
   }
 
+  /* get varStart */
+  std::vector<size_t> getVarStart() const {
+    return varStarts_ ;
+  }
+
   /** Reserve space for a total number of variables and dimensionality */
   void reserve(Index nVars, size_t totalDims) { values_.resize(std::max(totalDims, values_.size())); varStarts_.reserve(nVars+1); }