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Ricardo 2014-01-28 13:33:44 +00:00
parent 960ebeb32f
commit 472473993d
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GPy/plotting/matplot_dep/latent_space_visualizations/controllers/imshow_controller.py Normal file
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'''
Created on 24 Jul 2013
@author: maxz
'''
from axis_event_controller import BufferedAxisChangedController
import itertools
import numpy
class ImshowController(BufferedAxisChangedController):
def __init__(self, ax, plot_function, plot_limits, resolution=50, update_lim=.5, **kwargs):
"""
:param plot_function:
function to use for creating image for plotting (return ndarray-like)
plot_function gets called with (2D!) Xtest grid if replotting required
:type plot_function: function
:param plot_limits:
beginning plot limits [xmin, ymin, xmax, ymax]
:param kwargs: additional kwargs are for pyplot.imshow(**kwargs)
"""
super(ImshowController, self).__init__(ax, plot_function, plot_limits, resolution, update_lim, **kwargs)
def _init_view(self, ax, X, xmin, xmax, ymin, ymax, **kwargs):
return ax.imshow(X, extent=(xmin, xmax,
ymin, ymax),
vmin=X.min(),
vmax=X.max(),
**kwargs)
def update_view(self, view, X, xmin, xmax, ymin, ymax):
view.set_data(X)
view.set_extent((xmin, xmax, ymin, ymax))
class ImAnnotateController(ImshowController):
def __init__(self, ax, plot_function, plot_limits, resolution=20, update_lim=.99, **kwargs):
"""
:param plot_function:
function to use for creating image for plotting (return ndarray-like)
plot_function gets called with (2D!) Xtest grid if replotting required
:type plot_function: function
:param plot_limits:
beginning plot limits [xmin, ymin, xmax, ymax]
:param text_props: kwargs for pyplot.text(**text_props)
:param kwargs: additional kwargs are for pyplot.imshow(**kwargs)
"""
super(ImAnnotateController, self).__init__(ax, plot_function, plot_limits, resolution, update_lim, **kwargs)
def _init_view(self, ax, X, xmin, xmax, ymin, ymax, text_props={}, **kwargs):
view = [super(ImAnnotateController, self)._init_view(ax, X[0], xmin, xmax, ymin, ymax, **kwargs)]
xoffset, yoffset = self._offsets(xmin, xmax, ymin, ymax)
xlin = numpy.linspace(xmin, xmax, self.resolution, endpoint=False)
ylin = numpy.linspace(ymin, ymax, self.resolution, endpoint=False)
for [i, x], [j, y] in itertools.product(enumerate(xlin), enumerate(ylin[::-1])):
view.append(ax.text(x + xoffset, y + yoffset, "{}".format(X[1][j, i]), ha='center', va='center', **text_props))
return view
def update_view(self, view, X, xmin, xmax, ymin, ymax):
super(ImAnnotateController, self).update_view(view[0], X[0], xmin, xmax, ymin, ymax)
xoffset, yoffset = self._offsets(xmin, xmax, ymin, ymax)
xlin = numpy.linspace(xmin, xmax, self.resolution, endpoint=False)
ylin = numpy.linspace(ymin, ymax, self.resolution, endpoint=False)
for [[i, x], [j, y]], text in itertools.izip(itertools.product(enumerate(xlin), enumerate(ylin[::-1])), view[1:]):
text.set_x(x + xoffset)
text.set_y(y + yoffset)
text.set_text("{}".format(X[1][j, i]))
return view
def _offsets(self, xmin, xmax, ymin, ymax):
return (xmax - xmin) / (2 * self.resolution), (ymax - ymin) / (2 * self.resolution)