public IndexedViewableAlpha GetComposition_Add()
{
ModelTree last = GetLastNonFiltered();
IndexedViewableAlpha viewable = last.GetViewable();
viewable.RecolorGroups((int i, int[] inds) => (inds.Sum((int ind) => (viewable.Selected[ind] ? 1 : 0)) > 0 ? (Vec4f?)recoloradd[inds.Length - 1] : (Vec4f?)null));
return(viewable);
}
public IndexedViewableAlpha GetComposition_SelectTopo()
{
int itopo = GetLastIndexOfNonFiltered();
ModelTree ttopo = lst[itopo];
ModelTree tselect = lst[itopo - 1];
IndexedViewableAlpha viewselect = tselect.GetViewable();
IndexedViewableAlpha viewtopo = ttopo.GetViewable();
IndexedViewableAlpha viewadd = viewtopo - viewselect;
IndexedViewableAlpha viewdel = viewselect - viewtopo;
IndexedViewableAlpha viewsame = viewselect % viewtopo;
viewadd.RecolorGroups((int i, int[] inds) => recoloradd[inds.Length - 1]);
viewdel.RecolorGroups((int i, int[] inds) => recolordel[inds.Length - 1]);
return(viewsame + viewadd + viewdel);
}