>>>>> "Daniel" == Daniel Poelzleithner <[EMAIL PROTECTED]> writes:
Daniel> Hi, I'm developing a websuite for open meshed networks
Daniel> written in django. I must admit, matplotlib and such was
Daniel> kinda hard stuff to step into. Most examples and
Daniel> documentation is only based on the pylab api, which isn't
Daniel> well suited for my purpos, because Django runs best with
Daniel> mod-python.
There are a few resources
http://matplotlib.sourceforge.net/faq.html#OO
and
http://matplotlib.sourceforge.net/leftwich_tut.txt
and Ken McIvorhas converted many of the pylab examples to OO style (link?)
See also
http://matplotlib.sourceforge.net/examples/pythonic_matplotlib.py
and
http://matplotlib.sourceforge.net/examples/webapp_demo.py
Daniel> Anyways. I'm wrote a function which generates tiles for
Daniel> google maps and those should be overlayers with
Daniel> transparent background.
Daniel> My code currently looks like this:
Daniel> from matplotlib.toolkits.basemap import Basemap from
Daniel> matplotlib.backends.backend_agg import FigureCanvasAgg as
Daniel> FigureCanvas from matplotlib.figure import Figure
Daniel> [...]
Daniel> def mktopo(ll_lng, ll_lat, ur_lng, ur_lat, aspect,
Daniel> filename, state): """Generates atopo tile for given
Daniel> latitude/longitude pairs""" dpi = 64 fig = Figure() canvas
Daniel> = FigureCanvas(fig) # what does this do ???
Daniel> #fig.set_facecolor((1.0,1.0,0,0.0))
To make the figure background transparent, do:
fig.figurePatch.set_alpha(0.0)
You can set the alpha channel of any matplotlib artist (Text, Line2D,
Rectangle, etc.). The two of most interest to you will be
fig.figurePatch (a rectangle)
and
ax.axesPatch (ditto)
JDH
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