.. _pylab_examples-set_and_get: pylab_examples example code: set_and_get.py =========================================== .. plot:: /home/tcaswell/other_source/matplotlib/doc/mpl_examples/pylab_examples/set_and_get.py :: """ MATLAB and pylab allow you to use setp and get to set and get object properties, as well as to do introspection on the object set To set the linestyle of a line to be dashed, you can do >>> line, = plot([1,2,3]) >>> setp(line, linestyle='--') If you want to know the valid types of arguments, you can provide the name of the property you want to set without a value >>> setp(line, 'linestyle') linestyle: [ '-' | '--' | '-.' | ':' | 'steps' | 'None' ] If you want to see all the properties that can be set, and their possible values, you can do >>> setp(line) set operates on a single instance or a list of instances. If you are in query mode introspecting the possible values, only the first instance in the sequence is used. When actually setting values, all the instances will be set. e.g., suppose you have a list of two lines, the following will make both lines thicker and red >>> x = arange(0,1.0,0.01) >>> y1 = sin(2*pi*x) >>> y2 = sin(4*pi*x) >>> lines = plot(x, y1, x, y2) >>> setp(lines, linewidth=2, color='r') get: get returns the value of a given attribute. You can use get to query the value of a single attribute >>> getp(line, 'linewidth') 0.5 or all the attribute/value pairs >>> getp(line) aa = True alpha = 1.0 antialiased = True c = b clip_on = True color = b ... long listing skipped ... Aliases: To reduce keystrokes in interactive mode, a number of properties have short aliases, e.g., 'lw' for 'linewidth' and 'mec' for 'markeredgecolor'. When calling set or get in introspection mode, these properties will be listed as 'fullname or aliasname', as in """ from __future__ import print_function from pylab import * x = arange(0,1.0,0.01) y1 = sin(2*pi*x) y2 = sin(4*pi*x) lines = plot(x, y1, x, y2) l1, l2 = lines setp(lines, linestyle='--') # set both to dashed setp(l1, linewidth=2, color='r') # line1 is thick and red setp(l2, linewidth=1, color='g') # line2 is thicker and green print ('Line setters') setp(l1) print ('Line getters') getp(l1) print ('Rectangle setters') setp(gca().patch) print ('Rectangle getters') getp(gca().patch) t = title('Hi mom') print ('Text setters') setp(t) print ('Text getters') getp(t) show() Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)