# Set parameters for circles # marking vertices radius = 5; dofill = 0; # Draw solid black line LineStyleSetLineWidth(3); LineStyleSetColor(0,0,0); LineStyleDrawLine(); # Draw red circle at beginning of line LineStyleSetColor(225,0,0); LineStyleDrawCircle(radius,dofill); # While not at end of line, move to # next vertex and draw green circle LineStyleSetColor(0,225,0); while (LineStyleNextVertex() <> 1) { LineStyleDrawCircle(radius,dofill); }