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Fixed typo in LieConfig expmap(Vector)

release/4.3a0
Richard Roberts 2010-01-10 17:48:55 +00:00
parent 33ba34a1f6
commit edb68b3b60
1 changed files with 15 additions and 11 deletions
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20
cpp/LieConfig-inl.h
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@ -61,6 +61,7 @@ namespace gtsam {
dim_ += dim(val); dim_ += dim(val);
} }
// todo: insert for every element is inefficient
template<class T> template<class T>
LieConfig<T> expmap(const LieConfig<T>& c, const VectorConfig& delta) { LieConfig<T> expmap(const LieConfig<T>& c, const VectorConfig& delta) {
LieConfig<T> newConfig; LieConfig<T> newConfig;
@ -75,19 +76,22 @@ namespace gtsam {
return newConfig; return newConfig;
} }
// This version just creates a VectorConfig then calls function above // todo: insert for every element is inefficient
template<class T> template<class T>
LieConfig<T> expmap(const LieConfig<T>& c, const Vector& delta) { LieConfig<T> expmap(const LieConfig<T>& c, const Vector& delta) {
VectorConfig deltaConfig; if(delta.size() != dim(c))
throw invalid_argument("Delta vector length does not match config dimensionality.");
LieConfig<T> newConfig;
pair<string, T> value;
int delta_offset = 0; int delta_offset = 0;
string j; T pj; BOOST_FOREACH(value, c) {
FOREACH_PAIR(j, pj, c) { int cur_dim = dim(value.second);
int cur_dim = dim(pj); newConfig.insert(value.first,
Vector dj = sub(delta, delta_offset, delta_offset+cur_dim); expmap(value.second,
deltaConfig.insert(j,dj); sub(delta, delta_offset, delta_offset+cur_dim)));
delta_offset += cur_dim; delta_offset += cur_dim;
} }
return expmap(c,deltaConfig); return newConfig;
} }
} }