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[Zohar <>]

Okay, I dug some more. The LindstromTurk_cost checks the placement (unlike
Edge_length_cost). So if my placement returns empty due to temporary
bijectivity constraint, the edge would be rejected due to empty cost. So I
moved the bijectivity constraint from MyPlacement to the Loop:

if ( lPlacement && Is_collapse_geometrically_valid(lProfile, lPlacement) &&
Multires::is_collapse_bijective(*lEdge) ) {

and now it seems to work fine.



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