Ah! Great! I really wish Google would sort out the SU API docs... grumble

[EDIT] after some quick test view.draw_polyline works fine, but are you sure you execute your code within the drawmethod of a Tool (this is the only place where view.draw methods can work)? Otherwise, if you want to draw a polyline, you could also use view.draw GL_LINESTRIP, pt1, pt2, ... If you want to draw segments with each pair of points, use view_draw_lineor view.draw_lines. Very handy to draw in one shot a complex shape that you pre-calculated.

hello Herodes, what a colorfull logo here,... bold and nice.