At 10:36 AM 8/14/2007, Eric Firing wrote:
Ted Drain wrote:
Manuel,
We do plots like this all the time. One thing we've found that's
nice to have is a keyword that controls when the increase in y
happens. We use a step style keyword that can be 'pre' (go up then
right), 'post' (go right then up), and 'mid' (right 0.5, up, right 0.5).
Good idea.
Regarding your patch, you might want to check other areas in MPL
for data processing examples. I could be wrong but I'm not sure
you can assume that incoming data is a float. Some of the unit
conversion examples or the line collection code might have better examples.
Incoming data can be any numeric type, but it ends up getting
converted to the default float type (not float32) internally.
Whenever possible, it is good to support masked array input.
Agreed - but the way the patch was written, I don't think it will
support anything but float (especially not the unit types).
Eric
Ted
At 07:59 AM 8/14/2007, Manuel Metz wrote:
Hi,
I have created a patch against latest svn that adds a function
step to the axes class to plot step-functions ;-) It's really
simple but nice ... Any interest in adding this?
Manuel
Index: axes.py
===================================================================
--- axes.py (revision 3709)
+++ axes.py (working copy)
@@ -4995,6 +4995,18 @@
steps=[1, 2, 5, 10],
integer=True))
return im
+
+ def step(self, x, y, *args, **kwargs):
+ x2 = npy.zeros((2*len(x)), npy.float32)
+ y2 = npy.zeros((2*len(x)), npy.float32)
+
+ x2[0::2] = x
+ x2[1::2] = x
+
+ y2[1::2] = y
+ y2[2::2] = y[:-1]
+
+ self.plot(x2, y2, *args, **kwargs)
class SubplotBase:
"""
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