construct path coordin convers object posit anchor point path percentag path offset anchor point distanc measur given angl param path fig fig repres edg us posit param item fig fig place param path percent distanc integ percentag path anchor point offset comput begin path end path param path delta delta distanc coordin space unit add comput percentag posit param displac angl angl add comput line slope comput displac vector param displac distanc distanc edg place fig comput normal anchor posit us path percent path delta path item placement fig edg path fig fig item fig path percent path delta displac angl displac distanc path fig item fig item fig set anchor path percent path delta set displac vector displac angl displac distanc 