881 lines
34 KiB
Python
881 lines
34 KiB
Python
import pygtk
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import gobject
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import gtk
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import matplotlib
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from matplotlib.backends.backend_gtkagg import FigureCanvasGTKAgg
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from matplotlib.nxutils import points_inside_poly
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from matplotlib.figure import Figure
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from matplotlib.collections import LineCollection
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from matplotlib.patches import Polygon,Rectangle,Circle
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from matplotlib.lines import Line2D
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from matplotlib.mlab import prctile
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from matplotlib.colors import ColorConverter
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import networkx
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import scipy
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import fluents
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import logger
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import view
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def plotlogger(func, name=None):
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def wrapped(parent, *args, **kw):
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parent.__args = args
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parent.__kw = kw
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return func(parent, *args, **kw)
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return wrapped
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class Plot(view.View):
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def __init__(self, title):
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view.View.__init__(self, title)
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logger.log('debug', 'plot %s init' %title)
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self.selection_listener = None
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self.current_dim = None
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self._current_selection = None
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self._frozen = False
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self._init_mpl()
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def _init_mpl(self):
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# init matplotlib related stuff
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self._background = None
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self._use_blit = False
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self.fig = Figure()
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self.canvas = FigureCanvasGTKAgg(self.fig)
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self.axes = self.fig.gca()
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self._toolbar = view.PlotToolbar(self)
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self.canvas.add_events(gtk.gdk.ENTER_NOTIFY_MASK)
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self.add(self.canvas)
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self.canvas.show()
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def set_frozen(self, frozen):
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"""A frozen plot will not be updated when the current
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selection is changed."""
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self._frozen = frozen
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if not frozen and self._current_selection != None:
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self.set_current_selection(self._current_selection)
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def get_title(self):
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return self.title
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def get_toolbar(self):
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return self._toolbar
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def selection_changed(self, dim_name, selection):
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""" Selection observer handle.
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A selection change in a plot is only drawn if:
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1.) plot is sensitive to selections (not freezed)
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2.) plot is visible (has a view)
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3.) the selections dim_name is the plot's dimension.
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"""
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self._current_selection = selection
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if self._frozen \
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or not self.get_property('visible') \
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or self.current_dim != dim_name:
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return
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self.set_current_selection(selection)
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def set_selection_listener(self, listener):
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"""Allow project to listen to selections.
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The selection will propagate back to all plots through the
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selection_changed() method. The listener will be called as
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listener(dimension_name, ids).
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"""
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self.selection_listener = listener
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def update_selection(self, ids, key=None):
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"""Returns updated current selection from ids.
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If a key is pressed we use the appropriate mode.
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key map:
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shift : union
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control : intersection
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"""
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if key == 'shift':
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ids = set(ids).union(self._current_selection[self.current_dim])
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elif key == 'control':
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ids = set(ids).intersection(self._current_selection[self.current_dim])
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return ids
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def set_current_selection(self, selection):
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"""Called whenever the plot should change the selection.
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This method is a dummy method, so that specialized plots that have
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no implemented selection can ignore selections alltogether.
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"""
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pass
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def rectangle_select_callback(self, *args):
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"""Overrriden in subclass."""
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if hasattr(self, 'canvas'):
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self.canvas.draw()
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def lasso_select_callback(self, *args):
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"""Overrriden in subclass."""
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if hasattr(self, 'canvas'):
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self.canvas.draw()
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def get_index_from_selection(self, dataset, selection):
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"""Returns the index vector of current selection in given dim."""
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if not selection: return []
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ids = selection.get(self.current_dim, []) # current identifiers
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if not ids : return []
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return dataset.get_indices(self.current_dim, ids)
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class LineViewPlot(Plot):
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"""Line view plot with percentiles.
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A line view of vectors across a specified dimension of input dataset.
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No selection interaction is defined.
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Only support for 2d-arrays.
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input:
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-- major_axis : dim_number for line dim (see scipy.ndarray for axis def.)
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-- minor_axis : needs definition only for higher order arrays
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fixme: slow
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"""
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@plotlogger
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def __init__(self, dataset, major_axis=1, minor_axis=None, name="Line view"):
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Plot.__init__(self, name)
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self.dataset = dataset
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self._data = dataset.asarray()
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if len(self._data.shape)==2 and not minor_axis:
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minor_axis = major_axis - 1
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self.major_axis = major_axis
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self.minor_axis = minor_axis
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self.current_dim = self.dataset.get_dim_name(major_axis)
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#initial draw
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self.line_coll = None
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self.line_segs = []
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x_axis = scipy.arange(self._data.shape[minor_axis])
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for xi in range(self._data.shape[major_axis]):
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yi = self._data.take([xi], major_axis).ravel()
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self.line_segs.append([(xx,yy) for xx,yy in zip(x_axis, yi)])
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# draw background
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self._set_background(self.axes)
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# Disable selection modes
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self._toolbar.freeze_button.set_sensitive(False)
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self._toolbar.set_mode_sensitive('select', False)
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self._toolbar.set_mode_sensitive('lassoselect', False)
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def _set_background(self, ax):
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"""Add three patches representing [min max],[5,95] and [25,75] percentiles, and a line at the median.
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"""
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if self._data.shape[self.minor_axis]<10:
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return
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# settings
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patch_color = 'b' #blue
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patch_lw = 0 #no edges
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patch_alpha = .15 # transparancy
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median_color = 'b' #blue
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median_width = 1.5 #linewidth
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percentiles = [0, 5, 25, 50, 75, 100]
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# ordinate
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xax = scipy.arange(self._data.shape[self.minor_axis])
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#vertices
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verts_0 = [] #100,0
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verts_1 = [] # 90,10
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verts_2 = [] # 75,25
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med = []
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# add top vertices the low vertices (do i need an order?)#background
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for i in xax:
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prct = prctile(self._data.take([i], self.minor_axis), percentiles)
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verts_0.append((i, prct[0]))
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verts_1.append((i, prct[1]))
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verts_2.append((i, prct[2]))
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med.append(prct[3])
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for i in xax[::-1]:
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prct = prctile(self._data.take([i], self.minor_axis), percentiles)
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verts_0.append((i, prct[-1]))
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verts_1.append((i, prct[-2]))
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verts_2.append((i, prct[-3]))
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# make polygons from vertices
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bck0 = Polygon(verts_0, alpha=patch_alpha, lw=patch_lw,
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facecolor=patch_color)
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bck1 = Polygon(verts_1, alpha=patch_alpha, lw=patch_lw,
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facecolor=patch_color)
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bck2 = Polygon(verts_2, alpha=patch_alpha, lw=patch_lw,
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facecolor=patch_color)
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# add polygons to axes
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ax.add_patch(bck0)
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ax.add_patch(bck1)
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ax.add_patch(bck2)
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# median line
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ax.plot(xax, med, median_color, linewidth=median_width)
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def set_current_selection(self, selection):
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"""Draws the current selection.
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"""
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index = self.get_index_from_selection(self.dataset, selection)
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if self.line_coll:
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self.axes.collections.remove(self.line_coll)
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segs = [self.line_segs[i] for i in index]
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self.line_coll = LineCollection(segs, colors=(1,0,0,1))
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self.axes.add_collection(self.line_coll)
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#draw
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if self._use_blit:
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if self._background is None:
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self._background = self.canvas.copy_from_bbox(self.axes.bbox)
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self.canvas.restore_region(self._background)
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self.axes.draw_artist(self.lines)
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self.canvas.blit()
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else:
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self.canvas.draw()
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class ScatterMarkerPlot(Plot):
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"""The ScatterMarkerPlot is faster than regular scatterplot, but
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has no color and size options."""
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@plotlogger
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def __init__(self, dataset_1, dataset_2, id_dim, sel_dim,
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id_1, id_2, s=6, name="Scatter plot"):
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Plot.__init__(self, name)
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self.current_dim = id_dim
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self.dataset_1 = dataset_1
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self.ms = s
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x_index = dataset_1[sel_dim][id_1]
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y_index = dataset_2[sel_dim][id_2]
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self.xaxis_data = dataset_1._array[:, x_index]
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self.yaxis_data = dataset_2._array[:, y_index]
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# init draw
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self._selection_line = None
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self.line = self.axes.plot(self.xaxis_data, self.yaxis_data, 'o', markeredgewidth=0, markersize=s)
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self.axes.axhline(0, color='k', lw=1., zorder=1)
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self.axes.axvline(0, color='k', lw=1., zorder=1)
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def rectangle_select_callback(self, x1, y1, x2, y2, key):
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ydata = self.yaxis_data
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xdata = self.xaxis_data
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# find indices of selected area
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if x1>x2:
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x1, x2 = x2, x1
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if y1>y2:
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y1, y2 = y2, y1
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assert x1<=x2
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assert y1<=y2
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index = scipy.nonzero((xdata>x1) & (xdata<x2) & (ydata>y1) & (ydata<y2))[0]
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ids = self.dataset_1.get_identifiers(self.current_dim, index)
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ids = self.update_selection(ids, key)
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self.selection_listener(self.current_dim, ids)
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def lasso_select_callback(self, verts, key=None):
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xys = scipy.c_[self.xaxis_data[:,scipy.newaxis], self.yaxis_data[:,scipy.newaxis]]
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index = scipy.nonzero(points_inside_poly(xys, verts))[0]
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ids = self.dataset_1.get_identifiers(self.current_dim, index)
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ids = self.update_selection(ids, key)
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self.selection_listener(self.current_dim, ids)
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def set_current_selection(self, selection):
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#remove old selection
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if self._selection_line:
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self.axes.lines.remove(self._selection_line)
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index = self.get_index_from_selection(self.dataset_1, selection)
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if len(index)==0:
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# no selection
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self.canvas.draw()
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self._selection_line = None
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return
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xdata_new = self.xaxis_data.take(index) #take data
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ydata_new = self.yaxis_data.take(index)
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self._selection_line = Line2D(xdata_new, ydata_new
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,marker='o', markersize=self.ms,
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linewidth=0, markerfacecolor='r',
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markeredgewidth=1.0)
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self.axes.add_line(self._selection_line)
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if self._use_blit:
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if self._background is None:
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self._background = self.canvas.copy_from_bbox(self.axes.bbox)
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self.canvas.restore_region(self._background)
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if self.selection_line:
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self.axes.draw_artist(self._selection_line)
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self.canvas.blit()
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else:
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self.canvas.draw()
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class ScatterPlot(Plot):
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"""The ScatterPlot is slower than scattermarker, but has size option."""
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@plotlogger
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def __init__(self, dataset_1, dataset_2, id_dim, sel_dim, id_1, id_2, c='b', s=30, sel_dim_2=None, name="Scatter plot", **kw):
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Plot.__init__(self, name)
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self.dataset_1 = dataset_1
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self.s = s
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self.c = c
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self.kw = kw
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self.current_dim = id_dim
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x_index = dataset_1[sel_dim][id_1]
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if sel_dim_2:
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y_index = dataset_2[sel_dim_2][id_2]
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else:
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y_index = dataset_2[sel_dim][id_2]
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self.xaxis_data = dataset_1._array[:, x_index]
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self.yaxis_data = dataset_2._array[:, y_index]
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# init draw
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self.init_draw()
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# signals to enable correct use of blit
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self.connect('zoom-changed', self.onzoom)
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self.connect('pan-changed', self.onpan)
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self.need_redraw = False
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self.canvas.mpl_connect('resize_event', self.onresize)
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def onzoom(self, widget, mode):
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logger.log('notice', 'Zoom in widget: %s' %widget)
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self.clean_redraw()
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def onpan(self, widget, mode):
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logger.log('notice', 'Pan in widget: %s' %widget)
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self.clean_redraw()
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def onresize(self, widget):
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logger.log('notice', 'resize event')
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self.clean_redraw()
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def clean_redraw(self):
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if self._use_blit == True:
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logger.log('notice', 'blit -> clean redraw ')
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self.set_current_selection(None)
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self._background = self.canvas.copy_from_bbox(self.axes.bbox)
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self.set_current_selection(self._current_selection)
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else:
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self._background = None
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def init_draw(self):
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lw = scipy.zeros(self.xaxis_data.shape)
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self.sc = self.axes.scatter(self.xaxis_data, self.yaxis_data,
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s=self.s, c=self.c, linewidth=lw,
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zorder=3, **self.kw)
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self.axes.axhline(0, color='k', lw=1., zorder=1)
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self.axes.axvline(0, color='k', lw=1., zorder=1)
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self.selection_collection = self.axes.scatter(self.xaxis_data,
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self.yaxis_data,
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alpha=0,
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c='w',s=self.s,
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linewidth=0,
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zorder=4)
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self._background = self.canvas.copy_from_bbox(self.axes.bbox)
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def is_mappable_with(self, obj):
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"""Returns True if dataset/selection is mappable with this plot.
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"""
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if isinstance(obj, fluents.dataset.Dataset):
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if self.current_dim in obj.get_dim_name() \
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and obj.asarray().shape[0] == self.xaxis_data.shape[0]:
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return True
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elif isinstance(obj, fluents.dataset.Selection):
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if self.current_dim in obj.get_dim_name():
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print "Selection is mappable"
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return True
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else:
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return False
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def _update_color_from_dataset(self, data):
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"""Updates the facecolors from a dataset.
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"""
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array = data.asarray()
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#only support for 2d-arrays:
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try:
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m, n = array.shape
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except:
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raise ValueError, "No support for more than 2 dimensions."
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# is dataset a vector or matrix?
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if not n==1:
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# we have a category dataset
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if isinstance(data, fluents.dataset.CategoryDataset):
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map_vec = scipy.dot(array, scipy.diag(scipy.arange(n))).sum(1)
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else:
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map_vec = array.sum(1)
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else:
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map_vec = array.ravel()
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# update facecolors
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self.sc.set_array(map_vec)
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self.sc.set_clim(map_vec.min(), map_vec.max())
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self.sc.update_scalarmappable() #sets facecolors from array
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self.canvas.draw()
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def rectangle_select_callback(self, x1, y1, x2, y2, key):
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ydata = self.yaxis_data
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xdata = self.xaxis_data
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# find indices of selected area
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if x1>x2:
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x1, x2 = x2, x1
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if y1>y2:
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y1, y2 = y2, y1
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assert x1<=x2
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assert y1<=y2
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index = scipy.nonzero((xdata>x1) & (xdata<x2) & (ydata>y1) & (ydata<y2))[0]
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ids = self.dataset_1.get_identifiers(self.current_dim, index)
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ids = self.update_selection(ids, key)
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self.selection_listener(self.current_dim, ids)
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def lasso_select_callback(self, verts, key=None):
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xys = scipy.c_[self.xaxis_data[:,scipy.newaxis], self.yaxis_data[:,scipy.newaxis]]
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index = scipy.nonzero(points_inside_poly(xys, verts))[0]
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ids = self.dataset_1.get_identifiers(self.current_dim, index)
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ids = self.update_selection(ids, key)
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self.selection_listener(self.current_dim, ids)
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def set_current_selection(self, selection):
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linewidth = scipy.zeros(self.xaxis_data.shape, 'f')
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index = self.get_index_from_selection(self.dataset_1, selection)
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if len(index) > 0:
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linewidth.put(1, index)
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self.selection_collection.set_linewidth(linewidth)
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if self._use_blit and len(index)>0 :
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if self._background is None:
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self._background = self.canvas.copy_from_bbox(self.axes.bbox)
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self.canvas.restore_region(self._background)
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self.axes.draw_artist(self.selection_collection)
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self.canvas.blit()
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else:
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self.canvas.draw()
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class ImagePlot(Plot):
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@plotlogger
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def __init__(self, dataset, **kw):
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Plot.__init__(self, kw.get('name', 'Image Plot'))
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self.dataset = dataset
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# Initial draw
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self.axes.grid(False)
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self.axes.imshow(dataset.asarray(), interpolation='nearest')
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self.axes.axis('tight')
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# Disable selection modes
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self._toolbar.freeze_button.set_sensitive(False)
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self._toolbar.set_mode_sensitive('select', False)
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self._toolbar.set_mode_sensitive('lassoselect', False)
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class HistogramPlot(Plot):
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""" Histogram plot.
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If dataset is 1-dim the current_dim is set and selections may
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be performed. For dataset> 1.dim the histogram is over all values
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and selections are not defined,"""
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@plotlogger
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def __init__(self, dataset, **kw):
|
|
Plot.__init__(self, kw['name'])
|
|
self.dataset = dataset
|
|
self._data = dataset.asarray()
|
|
|
|
# If dataset is 1-dim we may do selections
|
|
if dataset.shape[0]==1:
|
|
self.current_dim = dataset.get_dim_name(1)
|
|
if dataset.shape[1]==1:
|
|
self.current_dim = dataset.get_dim_name(0)
|
|
# Initial draw
|
|
self.axes.grid(False)
|
|
bins = min(self._data.size, 20)
|
|
count, lims, self.patches = self.axes.hist(self._data, bins=bins)
|
|
|
|
# Add identifiers to the individual patches
|
|
if self.current_dim != None:
|
|
for i, patch in enumerate(self.patches):
|
|
if i==len(self.patches)-1:
|
|
end_lim = self._data.max() + 1
|
|
else:
|
|
end_lim = lims[i+1]
|
|
bool_ind = scipy.bitwise_and(self._data>=lims[i],
|
|
self._data<=end_lim)
|
|
patch.index = scipy.where(bool_ind)[0]
|
|
|
|
if self.current_dim==None:
|
|
# Disable selection modes
|
|
self._toolbar.freeze_button.set_sensitive(False)
|
|
self._toolbar.set_mode_sensitive('select', False)
|
|
self._toolbar.set_mode_sensitive('lassoselect', False)
|
|
|
|
def rectangle_select_callback(self, x1, y1, x2, y2, key):
|
|
if self.current_dim == None: return
|
|
# make (x1, y1) the lower left corner
|
|
if x1>x2:
|
|
x1, x2 = x2, x1
|
|
if y1>y2:
|
|
y1, y2 = y2, y1
|
|
|
|
self.active_patches = []
|
|
for patch in self.patches:
|
|
xmin = patch.xy[0]
|
|
xmax = xmin + patch.get_width()
|
|
ymin, ymax = 0, patch.get_height()
|
|
if xmax>x1 and xmin<x2 and (ymax> y2 or ymax>y1):
|
|
self.active_patches.append(patch)
|
|
if not self.active_patches: return
|
|
|
|
ids = set()
|
|
for patch in self.active_patches:
|
|
ids.update(self.dataset.get_identifiers(self.current_dim,
|
|
patch.index))
|
|
ids = self.update_selection(ids, key)
|
|
self.selection_listener(self.current_dim, ids)
|
|
|
|
def lasso_select_callback(self, verts, key):
|
|
if self.current_dim == None: return
|
|
self.active_patches = []
|
|
for patch in self.patches:
|
|
if scipy.any(points_inside_poly(verts, patch.get_verts())):
|
|
self.active_patches.append(patch)
|
|
if not self.active_patches: return
|
|
ids = set()
|
|
for patch in self.active_patches:
|
|
ids.update(self.dataset.get_identifiers(self.current_dim,
|
|
patch.index))
|
|
ids = self.update_selection(ids, key)
|
|
self.selection_listener(self.current_dim, ids)
|
|
|
|
def set_current_selection(self, selection):
|
|
index = self.get_index_from_selection(self.dataset, selection)
|
|
for patch in self.patches:
|
|
patch.set_facecolor('b')
|
|
for patch in self.patches:
|
|
if scipy.intersect1d(patch.index, index).size>1:
|
|
patch.set_facecolor('r')
|
|
self.canvas.draw()
|
|
|
|
|
|
class BarPlot(Plot):
|
|
"""Bar plot.
|
|
|
|
Ordinary bar plot for (column) vectors.
|
|
For matrices there is one color for each row.
|
|
"""
|
|
@plotlogger
|
|
def __init__(self, dataset, **kw):
|
|
Plot.__init__(self, kw.get('name', 'Bar Plot'))
|
|
self.dataset = dataset
|
|
|
|
# Initial draw
|
|
self.axes.grid(False)
|
|
n, m = dataset.shape
|
|
if m>1:
|
|
clrs = matplotlib.cm.ScalarMappable().to_rgba(range(n))
|
|
for i, row in enumerate(dataset.asarray()):
|
|
left = scipy.arange(i+1, m*n+1, n)
|
|
height = row
|
|
color = clrs[i]
|
|
c = (color[0], color[1], color[2])
|
|
self.axes.bar(left, height,color=c)
|
|
else:
|
|
height = dataset.asarray().ravel()
|
|
left = scipy.arange(1, n, 1)
|
|
self.axes.bar(left, height)
|
|
|
|
# Disable selection modes
|
|
self._toolbar.freeze_button.set_sensitive(False)
|
|
self._toolbar.set_mode_sensitive('select', False)
|
|
self._toolbar.set_mode_sensitive('lassoselect', False)
|
|
|
|
|
|
class NetworkPlot(Plot):
|
|
@plotlogger
|
|
def __init__(self, dataset, pos=None, nodecolor='b', nodesize=40,
|
|
prog='neato', with_labels=False, name='Network Plot'):
|
|
|
|
Plot.__init__(self, name)
|
|
self.dataset = dataset
|
|
self.graph = dataset.asnetworkx()
|
|
self._prog = prog
|
|
self._pos = pos
|
|
self._nodesize = nodesize
|
|
self._nodecolor = nodecolor
|
|
self._with_labels = with_labels
|
|
|
|
self.current_dim = self.dataset.get_dim_name(0)
|
|
|
|
if not self._pos:
|
|
self._pos = networkx.graphviz_layout(self.graph, self._prog)
|
|
self._xy = scipy.asarray([self._pos[node] for node in self.dataset.get_identifiers(self.current_dim, sorted=True)])
|
|
self.xaxis_data = self._xy[:,0]
|
|
self.yaxis_data = self._xy[:,1]
|
|
|
|
# Initial draw
|
|
self.default_props = {'nodesize' : 50,
|
|
'nodecolor' : 'blue',
|
|
'edge_color' : 'gray',
|
|
'edge_color_selected' : 'red'}
|
|
self.node_collection = None
|
|
self.edge_collection = None
|
|
self.node_labels = None
|
|
lw = scipy.zeros(self.xaxis_data.shape)
|
|
self.node_collection = self.axes.scatter(self.xaxis_data, self.yaxis_data,
|
|
s=self._nodesize,
|
|
c=self._nodecolor,
|
|
linewidth=lw,
|
|
zorder=3)
|
|
# selected nodes is a transparent graph that adjust node-edge visibility
|
|
# according to the current selection needed to get get the selected
|
|
# nodes 'on top' as zorder may not be defined individually
|
|
self.selected_nodes = self.axes.scatter(self.xaxis_data,
|
|
self.yaxis_data,
|
|
s=self._nodesize,
|
|
c=self._nodecolor,
|
|
linewidth=lw,
|
|
zorder=4,
|
|
alpha=0)
|
|
|
|
edge_color = self.default_props['edge_color']
|
|
self.edge_collection = networkx.draw_networkx_edges(self.graph,
|
|
self._pos,
|
|
ax=self.axes,
|
|
edge_color=edge_color)
|
|
# edge color rgba-arrays
|
|
self._edge_color_rgba = scipy.repmat(ColorConverter().to_rgba(edge_color),
|
|
self.graph.number_of_edges(),1)
|
|
self._edge_color_selected = ColorConverter().to_rgba(self.default_props['edge_color_selected'])
|
|
if self._with_labels:
|
|
self.node_labels = networkx.draw_networkx_labels(self.graph,
|
|
self._pos,
|
|
ax=self.axes)
|
|
|
|
# remove axes, frame and grid
|
|
self.axes.set_xticks([])
|
|
self.axes.set_yticks([])
|
|
self.axes.grid(False)
|
|
self.axes.set_frame_on(False)
|
|
self.fig.subplots_adjust(left=0, right=1, bottom=0, top=1)
|
|
|
|
def rectangle_select_callback(self, x1, y1, x2, y2, key):
|
|
ydata = self.yaxis_data
|
|
xdata = self.xaxis_data
|
|
|
|
# find indices of selected area
|
|
if x1>x2:
|
|
x1, x2 = x2, x1
|
|
if y1>y2:
|
|
y1, y2 = y2, y1
|
|
assert x1<=x2
|
|
assert y1<=y2
|
|
|
|
index = scipy.nonzero((xdata>x1) & (xdata<x2) & (ydata>y1) & (ydata<y2))[0]
|
|
ids = self.dataset.get_identifiers(self.current_dim, index)
|
|
ids = self.update_selection(ids, key)
|
|
self.selection_listener(self.current_dim, ids)
|
|
|
|
def lasso_select_callback(self, verts, key=None):
|
|
xys = scipy.c_[self.xaxis_data[:,scipy.newaxis], self.yaxis_data[:,scipy.newaxis]]
|
|
index = scipy.nonzero(points_inside_poly(xys, verts))[0]
|
|
ids = self.dataset.get_identifiers(self.current_dim, index)
|
|
ids = self.update_selection(ids, key)
|
|
self.selection_listener(self.current_dim, ids)
|
|
|
|
def set_current_selection(self, selection):
|
|
linewidth = scipy.zeros(self.xaxis_data.shape)
|
|
edge_color_rgba = self._edge_color_rgba.copy()
|
|
index = self.get_index_from_selection(self.dataset, selection)
|
|
if len(index) > 0:
|
|
linewidth.put(2, index)
|
|
idents = selection[self.current_dim]
|
|
edge_index = [i for i,edge in enumerate(self.graph.edges()) if (edge[0] in idents and edge[1] in idents)]
|
|
if len(edge_index)>0:
|
|
for i in edge_index:
|
|
edge_color_rgba[i,:] = self._edge_color_selected
|
|
self._A = None
|
|
|
|
self.edge_collection._colors = edge_color_rgba
|
|
self.selected_nodes.set_linewidth(linewidth)
|
|
self.canvas.draw()
|
|
|
|
|
|
class VennPlot(Plot):
|
|
@plotlogger
|
|
def __init__(self, name="Venn diagram"):
|
|
Plot.__init__(self, name)
|
|
|
|
# init draw
|
|
self._init_bck()
|
|
for c in self._venn_patches:
|
|
self.axes.add_patch(c)
|
|
for mrk in self._markers:
|
|
self.axes.add_patch(mrk)
|
|
self.axes.set_xlim([-3, 3])
|
|
self.axes.set_ylim([-2.5, 3.5])
|
|
self._last_active = set()
|
|
self.axes.set_xticks([])
|
|
self.axes.set_yticks([])
|
|
self.axes.axis('equal')
|
|
self.axes.grid(False)
|
|
self.axes.set_frame_on(False)
|
|
self.fig.subplots_adjust(left=0, right=1, bottom=0, top=1)
|
|
|
|
def _init_bck(self):
|
|
res = 50
|
|
a = .5
|
|
r = 1.5
|
|
mr = .2
|
|
self.c1 = c1 = Circle((-1,0), radius=r, alpha=a, facecolor='b')
|
|
self.c2 = c2 = Circle((1,0), radius=r, alpha=a, facecolor='r')
|
|
self.c3 = c3 = Circle((0, scipy.sqrt(3)), radius=r, alpha=a, facecolor='g')
|
|
|
|
self.c1marker = Circle((-1.25, -.25), radius=mr, facecolor='y', alpha=0)
|
|
self.c2marker = Circle((1.25, -.25), radius=mr, facecolor='y', alpha=0)
|
|
self.c3marker = Circle((0, scipy.sqrt(3)+.25), radius=mr, facecolor='y', alpha=0)
|
|
self.c1c2marker = Circle((0, -.15), radius=mr, facecolor='y', alpha=0)
|
|
|
|
self.c1c3marker = Circle((-scipy.sqrt(2)/2, 1), radius=mr, facecolor='y', alpha=0)
|
|
self.c2c3marker = Circle((scipy.sqrt(2)/2, 1), radius=mr, facecolor='y', alpha=0)
|
|
self.c1c2c3marker = Circle((0, .6), radius=mr, facecolor='y', alpha=0)
|
|
|
|
c1.elements = set(['a', 'b', 'c', 'f'])
|
|
c2.elements = set(['a', 'c', 'd', 'e'])
|
|
c3.elements = set(['a', 'e', 'f', 'g'])
|
|
self.active_elements = set()
|
|
self.all_elements = c1.elements.union(c2.elements).union(c3.elements)
|
|
|
|
c1.active = False
|
|
c2.active = False
|
|
c3.active = False
|
|
|
|
c1.name = 'Blue'
|
|
c2.name = 'Red'
|
|
c3.name = 'Green'
|
|
|
|
self._venn_patches = [c1, c2, c3]
|
|
self._markers = [self.c1marker, self.c2marker, self.c3marker,
|
|
self.c1c2marker, self.c1c3marker,
|
|
self.c2c3marker, self.c1c2c3marker]
|
|
|
|
self._tot_label = 'Tot: ' + str(len(self.all_elements))
|
|
self._sel_label = 'Sel: ' + str(len(self.active_elements))
|
|
self._legend = self.axes.legend((self._tot_label, self._sel_label),
|
|
loc='upper right')
|
|
|
|
def set_selection(self, selection, patch=None):
|
|
if patch:
|
|
patch.selection = selection
|
|
else:
|
|
selection_set = False
|
|
for patch in self._venn_patches:
|
|
if len(patch.elements)==0:
|
|
patch.elements = selection
|
|
selection_set = True
|
|
if not selection_set:
|
|
self.venn_patches[0].elements = selection
|
|
|
|
def lasso_select_callback(self, verts, key=None):
|
|
if verts==None:
|
|
verts = (self._event.xdata, self._event.ydata)
|
|
if key!='shift':
|
|
for m in self._markers:
|
|
m.set_alpha(0)
|
|
|
|
self._patches_within_verts(verts, key)
|
|
active = [i.active for i in self._venn_patches]
|
|
if active==[True, False, False]:
|
|
self.c1marker.set_alpha(1)
|
|
self.active_elements = self.c1.elements.difference(self.c2.elements.union(self.c3.elements))
|
|
elif active== [False, True, False]:
|
|
self.c2marker.set_alpha(1)
|
|
self.active_elements = self.c2.elements.difference(self.c1.elements.union(self.c3.elements))
|
|
elif active== [False, False, True]:
|
|
self.c3marker.set_alpha(1)
|
|
self.active_elements = self.c3.elements.difference(self.c2.elements.union(self.c1.elements))
|
|
elif active==[True, True, False]:
|
|
self.c1c2marker.set_alpha(1)
|
|
self.active_elements = self.c1.elements.intersection(self.c2.elements)
|
|
elif active==[True, False, True]:
|
|
self.c1c3marker.set_alpha(1)
|
|
self.active_elements = self.c1.elements.intersection(self.c3.elements)
|
|
elif active==[False, True, True]:
|
|
self.c2c3marker.set_alpha(1)
|
|
self.active_elements = self.c2.elements.intersection(self.c3.elements)
|
|
elif active==[True, True, True]:
|
|
self.c1c2c3marker.set_alpha(1)
|
|
self.active_elements = self.c1.elements.intersection(self.c3.elements).intersection(self.c2.elements)
|
|
|
|
if key=='shift':
|
|
self.active_elements = self.active_elements.union(self._last_active)
|
|
self._last_active = self.active_elements.copy()
|
|
self._sel_label = 'Sel: ' + str(len(self.active_elements))
|
|
self._legend.texts[1].set_text(self._sel_label)
|
|
self.axes.figure.canvas.draw()
|
|
|
|
def rectangle_select_callback(self, x1, y1, x2, y2, key):
|
|
verts = [(x1, y1), (x2, y2)]
|
|
if key!='shift':
|
|
for m in self._markers:
|
|
m.set_alpha(0)
|
|
|
|
self._patches_within_verts(verts, key)
|
|
active = [i.active for i in self._venn_patches]
|
|
if active==[True, False, False]:
|
|
self.c1marker.set_alpha(1)
|
|
self.active_elements = self.c1.elements.difference(self.c2.elements.union(self.c3.elements))
|
|
elif active== [False, True, False]:
|
|
self.c2marker.set_alpha(1)
|
|
self.active_elements = self.c2.elements.difference(self.c1.elements.union(self.c3.elements))
|
|
elif active== [False, False, True]:
|
|
self.c3marker.set_alpha(1)
|
|
self.active_elements = self.c3.elements.difference(self.c2.elements.union(self.c1.elements))
|
|
elif active==[True, True, False]:
|
|
self.c1c2marker.set_alpha(1)
|
|
self.active_elements = self.c1.elements.intersection(self.c2.elements)
|
|
elif active==[True, False, True]:
|
|
self.c1c3marker.set_alpha(1)
|
|
self.active_elements = self.c1.elements.intersection(self.c3.elements)
|
|
elif active==[False, True, True]:
|
|
self.c2c3marker.set_alpha(1)
|
|
self.active_elements = self.c2.elements.intersection(self.c3.elements)
|
|
elif active==[True, True, True]:
|
|
self.c1c2c3marker.set_alpha(1)
|
|
self.active_elements = self.c1.elements.intersection(self.c3.elements).intersection(self.c2.elements)
|
|
|
|
if key=='shift':
|
|
self.active_elements = self.active_elements.union(self._last_active)
|
|
self._last_active = self.active_elements.copy()
|
|
self._sel_label = 'Sel: ' + str(len(self.active_elements))
|
|
self._legend.texts[1].set_text(self._sel_label)
|
|
self.axes.figure.canvas.draw()
|
|
|
|
def _patches_within_verts(self, verts, key):
|
|
xy = scipy.array(verts).mean(0)
|
|
for venn_patch in self._venn_patches:
|
|
venn_patch.active = False
|
|
if self._distance(venn_patch.center,xy)<venn_patch.radius:
|
|
venn_patch.active = True
|
|
|
|
def _distance(self, (x1,y1),(x2,y2)):
|
|
return scipy.sqrt( (x2-x1)**2 + (y2-y1)**2 )
|
|
|
|
|
|
# Create zoom-changed signal
|
|
gobject.signal_new('zoom-changed', Plot, gobject.SIGNAL_RUN_LAST, None,
|
|
(gobject.TYPE_PYOBJECT,))
|
|
|
|
# Create pan/zoom-changed signal
|
|
gobject.signal_new('pan-changed', Plot, gobject.SIGNAL_RUN_LAST, None,
|
|
(gobject.TYPE_PYOBJECT,))
|
|
|
|
# Create plot-resize-changed signal
|
|
gobject.signal_new('plot-resize-changed', Plot, gobject.SIGNAL_RUN_LAST, None,
|
|
(gobject.TYPE_PYOBJECT,))
|