A CAD system and corresponding method and computer program product. A method includes receiving a set of intersecting curves and receiving a selection of a source curve and a destination curve from the set of intersecting curves. The method includes receiving a selection intent rule and calculating a first chain of curves that includes the source curve, through the set of intersecting curves according to the selection intent rule. The method includes storing a selected path, the selected path being a chain of curves between the source curve and the destination curve with a minimum number of deviations from the selection intent rule.