On Jul 27, 2010, at 2:14 PM, Mathew Yeates wrote: > I installed matplotlib 1.0 and now I get a different error > s=[0,0,8,8] > ys=[0,8,8,0] > verts=zip(xs,ys) > poly = PolyCollection(verts) > > fails at line 587 in collections because > xy = array([0, 0]) # xy.shape = (2,) > and line 587 says xy = np.concatenate([xy, np.zeros((1,2))]) > > What do I do? > > -Mathew >
I don't really use PolyCollection, but the docstring suggests you need to put your "verts" inside of a list: > *verts* is a sequence of ( *verts0*, *verts1*, ...) where > *verts_i* is a sequence of *xy* tuples of vertices, or an > equivalent :mod:`numpy` array of shape (*nv*, 2). It's a bit confusing, but the first argument, "verts", is actually a sequence, of a sequence, of vertices (the repetition is intentional). For example: square = [(0, 0), (0, 4), (4, 4), (4, 0)] triangle = [(0, 4), (0, 7), (4, 4)] verts = [square, triangle] In other words, the "verts" you created in your description describes a single polygon, where as verts should be a list of polygons. -Tony ------------------------------------------------------------------------------ The Palm PDK Hot Apps Program offers developers who use the Plug-In Development Kit to bring their C/C++ apps to Palm for a share of $1 Million in cash or HP Products. Visit us here for more details: http://ad.doubleclick.net/clk;226879339;13503038;l? http://clk.atdmt.com/CRS/go/247765532/direct/01/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
