Keszegh, BalázsPach, JánosPálvölgyi, DömötörTóth, Géza2008-11-142008-11-142008-11-14200810.1016/j.comgeo.2007.05.003https://infoscience.epfl.ch/handle/20.500.14299/31160We show that every graph G with maximum degree three has a straight-line drawing in the plane using edges of at most five different slopes. Moreover, if G is connected and has at least one vertex of degree less than three, then four directions suffice.straight-line drawingslope numbertext::journal::journal article::research article