On Sat, Mar 26, 2011 at 10:16 AM, Virgil Stokes <v...@it.uu.se> wrote:
> I found that
>
> def set_sort_zpos(self,val):
> '''Set the position to use for z-sorting.'''
> self._sort_zpos = val
>
> was missing from
>
> class Line3DCollection(LineCollection) (in matplotlib 1.0.1):
>
> Now, with the above method added, add_collection3d works as it should with
> line
> segments, and the following will work as expected :-)
>
> '''
> Purpose: Waterfall plot using LineCollection
> Author: V.P.S. (2011-03-26)
> '''
> from mpl_toolkits.mplot3d import Axes3D
> from matplotlib.collections import LineCollection
> from matplotlib.colors import colorConverter
> import matplotlib.pyplot as plt
> import numpy as np
>
> np.random.seed(40040157) # Used to allow repeatable experiments (plots)
>
> fig = plt.figure()
> ax = fig.gca(projection='3d')
>
> cc = [colorConverter.to_rgba(c,alpha=0.6) for c in
> ('r','g','b','c','y','m','k')]
> ncc = len(cc)
>
> nxs = 5 # Num of points to connect (nxs-1 line segments)
> # Generate X values
> xs = np.arange(1, nxs+1, 1)
>
> # Create array of Y values (to be updated)
> ys = np.zeros(nxs)
>
> # Create list of Z values
> nzs = 4 # Num of Z-planes
> zs = [zs+1 for zs in range(nzs)]
>
> # Create list of colors (cyclic) for lines
> colorlist = [cc[j%ncc] for j in range(nzs)]
>
> segs = []
> # Generate line segments in each Z-plane
> for j in zs:
> ys = np.random.rand(nxs)
> segs.append(zip(xs, ys))
>
> curves = LineCollection(segs, colors = colorlist)
>
> ax.add_collection3d(curves, zs=zs, zdir='y')
>
> ax.set_xlabel('X') # points to right -- X
> ax.set_xlim3d(0, nxs+1)
> ax.set_ylabel('Y') # points into screen -- Y
> ax.set_ylim3d(0, nzs+1)
> ax.set_zlabel('Z') # points up -- Z
> ax.set_zlim3d(0, 1)
>
> plt.show()
>
> Have a Good Day
> --V
>
>
Virgil,
Thanks for noticing this. There are several missing methods in the various
3D collections and artists, and I am sure we haven't found them all yet. I
am currently too busy to investigate why this particular one was missing,
but in about a month I will have some time to do so.
Ben Root
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