>>>>> "humufr" == humufr <[EMAIL PROTECTED]> writes:
humufr> Another things that can be good to add is a better
humufr> clipping. For the moment there are no clipping that means
humufr> if I have something like::
Here is a little demo that shows you how to do a line that clips
itself to the data view (assuming x is sorted). It also adds a level
of detail marker when the number of points is not too large. We used
to have this as a feature in mpl, but removed it because noone ever
used it. We could add something like this again...
"""
Clip a line according to the current xlimits
"""
from matplotlib.lines import Line2D
import matplotlib.numerix as nx
from pylab import figure, show
class ClippedLine(Line2D):
"""
Clip the xlimits to the axes view limits -- this example assumes x is sorted
"""
def __init__(self, ax, *args, **kwargs):
Line2D.__init__(self, *args, **kwargs)
self.ax = ax
def set_data(self, *args, **kwargs):
Line2D.set_data(self, *args, **kwargs)
self.xorig = nx.array(self._x)
self.yorig = nx.array(self._y)
def draw(self, renderer):
xlim = self.ax.get_xlim()
ind0, ind1 = nx.searchsorted(self.xorig, xlim)
self._x = self.xorig[ind0:ind1]
self._y = self.yorig[ind0:ind1]
N = len(self._x)
if N<1000:
self._marker = 's'
self._linestyle = '-'
else:
self._marker = None
self._linestyle = '-'
Line2D.draw(self, renderer)
self._x = self.xorig
self._y = self.yorig
fig = figure()
ax = fig.add_subplot(111, autoscale_on=False)
t = nx.arange(0.0, 100.0, 0.01)
s = nx.sin(2*nx.pi*t)
line = ClippedLine(ax, t, s, color='g', ls='-', lw=2)
ax.add_line(line)
ax.set_xlim(10,30)
ax.set_ylim(-1.1,1.1)
show()
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