Bruce,
From: br...@clearscienceinc.com
Date: Wed, 9 Feb 2011 09:51:06 -0500
To: matplotlib-users@lists.sourceforge.net
Subject: [Matplotlib-users] Plotting multi-colored lines atop basemap instances
I am attempting to plot a line atop a basemap instance called "m". I can do
this without a problem with:
plot = m.plot(lon,lat,'r-') #lon and lat are lists
However, I'd like to color the line based on a third list called "intensity."
For instance, if the value of intensity between two points is 0-35 make it
green, 35-70 make it yellow, etc.
I have studied this example:
http://www.scipy.org/Cookbook/Matplotlib/MulticoloredLine but I cannot get a
collection added to the figure without errors.
You can always use 'regular' pyplot methods on your plot :
fig = plt.figure()
ax = fig.subplot(111)
m = Basemap(etc....)
convert your lon/lat to X,Y in the basemap projection:
X,Y = m(lon,lat)
then plot your line as if you were using only pyplot :
plt.plot(X,Y)
This way, you can add the collection as
ax.add_collection(somecollection)
HTH,
Thomas
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