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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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26
cpp/LieConfig-inl.h
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@ -61,6 +61,7 @@ namespace gtsam {
dim_ += dim(val);
}
// todo: insert for every element is inefficient
template<class T>
LieConfig<T> expmap(const LieConfig<T>& c, const VectorConfig& delta) {
LieConfig<T> newConfig;
@ -75,19 +76,22 @@ namespace gtsam {
return newConfig;
}
// This version just creates a VectorConfig then calls function above
// todo: insert for every element is inefficient
template<class T>
LieConfig<T> expmap(const LieConfig<T>& c, const Vector& delta) {
VectorConfig deltaConfig;
int delta_offset = 0;
string j; T pj;
FOREACH_PAIR(j, pj, c) {
int cur_dim = dim(pj);
Vector dj = sub(delta, delta_offset, delta_offset+cur_dim);
deltaConfig.insert(j,dj);
delta_offset += cur_dim;
}
return expmap(c,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;
BOOST_FOREACH(value, c) {
int cur_dim = dim(value.second);
newConfig.insert(value.first,
expmap(value.second,
sub(delta, delta_offset, delta_offset+cur_dim)));
delta_offset += cur_dim;
}
return newConfig;
}
}