This function returns information about how edges on the sphere have been deformed from their flat state.
getStrains(r)A ReconstructedOutline object
A list containing two data frames flat and spherical.
Each data frame contains for each edge in the flat or spherical meshes:
LLength of the edge in the flat outline
lLength of the corresponding edge on the sphere
strainThe strain of each connection
logstrainThe logarithmic strain of each connection