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https://stackoverflow.com/questions/33277566/using-a-proxy-artist-inside-a-legend-matplotlib-python
you need to grab the scatter and plot artists as you plot them, and then feed the handles and labels from them to legend.For example, here's your code modified (with some sample data at the beginning just to get it to run): plt.plot returns a list of Line2D objects, so if you read it as pplot, = plt.plot(...), you unpack that one-item list.. You can then use .get_label() on pplot and pscat to ...
https://matplotlib.org/stable/tutorials/intermediate/legend_guide.html
Jan 28, 2021 · Proxy artists) ¶ Not all handles can be turned into legend entries automatically, so it is often necessary to create an artist which can. Legend handles don't have to exist on the Figure or Axes in order to be used. Suppose we wanted to create a legend which has an entry for some data which is represented by a red color:
http://omz-software.com/pythonista/matplotlib/users/legend_guide.html
When you want to display legend for an artist not supported by matplotlib, you may use another artist as a proxy. For example, you may create a proxy artist without adding it to the axes (so the proxy artist will not be drawn in the main axes) and feed it to the legend function.:
https://matplotlib.org/2.0.2/users/legend_guide.html
May 10, 2017 · Proxy artists)¶ Not all handles can be turned into legend entries automatically, so it is often necessary to create an artist which can. Legend handles don’t have to exists on the Figure or Axes in order to be used.
http://www.itgo.me/a/5890179972586152298/using-a-proxy-artist-inside-a-legend-matplotlib-python
Recommend：python - How to add a string as the artist in matplotlib legend letter) which is then labelled. For example I would like a legend for the following figure: import numpy as npimport matplotlib.pyplot as pltimport stringN = 7x = np.random.rand(N)y = np.random.rand(N)colors = np.random.rand(N)area
https://matplotlib.org/stable/_modules/matplotlib/legend.html
Jan 28, 2021 · The legend handler map specifies how to create legend handles from artists (lines, patches, etc.) in the axes or figures. Default legend handlers are defined in the :mod:`~matplotlib.legend_handler` module. While not all artist types are covered by the default legend handlers, custom legend handlers can be defined to support arbitrary objects.
https://github.com/matplotlib/matplotlib/issues/9607
Currently one has to define a handler map with an object if you want to get your own proxy legend entry. It needs to provide an object with only the method legend_artist. It would be a lot easier if if any proxy object used in the legend - or any artist - defining their own legend_artist method, that is being used.
https://matplotlib.org/stable/api/_as_gen/matplotlib.pyplot.legend.html
Jan 28, 2021 · Parameters: handles sequence of Artist, optional. A list of Artists (lines, patches) to be added to the legend. Use this together with labels, if you need full control on what is shown in the legend and the automatic mechanism described above is not sufficient.. The length of handles and labels should be the same in this case.
https://github.com/matplotlib/matplotlib/issues/7261
Oct 12, 2016 · Hi, I am using Enthought Canopy (Version 1.7.4.3348 (64 bit)) and I have downloaded Matplotlib version 1.5-1.5 in Python2.7 (Redhat Linux). I installed Matplotlib package in Canopy using package manager in Canopy. I installed Python2.7 u...
https://github.com/matplotlib/matplotlib/issues/10360
I'm having some problems with some code that used to work in a previous version of maptlotlib+jupyter notebook. I managed to trace the problem to creating an empty PathCollection to be used as a legend proxy artist, but the Exception is only raised when using the inline backend ( %matplotlib inline ). The code works fine using %matplotlib ...
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