Comments and cleanup in LineViewPlot
This commit is contained in:
parent
ba55678472
commit
bf951990f5
123
system/plots.py
123
system/plots.py
|
|
@ -398,97 +398,129 @@ class Plot (View):
|
|||
|
||||
|
||||
class LineViewPlot(Plot):
|
||||
"""Line view of current selection, no interaction
|
||||
Only works on 2d-arrays
|
||||
"""Line view plot with percentiles.
|
||||
|
||||
A line view of vectors across a specified dimension of input dataset.
|
||||
No selection interaction is defined.
|
||||
Only support for 2d-arrays.
|
||||
input:
|
||||
-- major_axis : dim_number for line dim (see scipy.ndarray for axis def.)
|
||||
-- minor_axis : needs definition only for higher order arrays
|
||||
ps: slow (cant get linecollection and blit to work)
|
||||
|
||||
fixme: slow (cant get linecollection and blit to work)
|
||||
"""
|
||||
def __init__(self, dataset, major_axis=1, minor_axis=None, name="Line view"):
|
||||
self.use_blit = False
|
||||
self._last_index = []
|
||||
self._data = dataset.asarray()
|
||||
self.dataset = dataset
|
||||
Plot.__init__(self, name)
|
||||
self.ax = self.fig.add_subplot(111)
|
||||
#self.ax.set_title(self.get_title())
|
||||
self.current_dim = self.dataset.get_dim_name(major_axis)
|
||||
self._data = dataset.asarray()
|
||||
if len(self._data.shape)==2 and not minor_axis:
|
||||
minor_axis = major_axis-1
|
||||
self.major_axis = major_axis
|
||||
self.minor_axis = minor_axis
|
||||
Plot.__init__(self, name)
|
||||
self.use_blit = False #fixme: blitting does work
|
||||
self.current_dim = self.dataset.get_dim_name(major_axis)
|
||||
|
||||
# make axes
|
||||
self.ax = self.fig.add_subplot(111)
|
||||
|
||||
#initial draw
|
||||
x_axis = scipy.arange(self._data.shape[minor_axis])
|
||||
self.line_segs=[]
|
||||
for xi in range(self._data.shape[major_axis]):
|
||||
yi = self._data.take([xi], major_axis)
|
||||
self.line_segs.append([(xx,yy) for xx,yy in izip(x_axis,yi)])
|
||||
yi = self._data.take([xi], major_axis).ravel()
|
||||
self.line_segs.append([(xx,yy) for xx,yy in izip(x_axis, yi)])
|
||||
|
||||
#background
|
||||
xax = scipy.arange(self._data.shape[0])
|
||||
# draw background
|
||||
self._set_background(self.ax)
|
||||
|
||||
# add canvas
|
||||
self.add(self.canvas)
|
||||
self.canvas.show()
|
||||
|
||||
# add toolbar
|
||||
#FIXME: Lineview plot cannot do selections -> disable in toolbar
|
||||
#self._toolbar = PlotToolbar(self)
|
||||
self.canvas.mpl_connect('resize_event', self.clear_background)
|
||||
|
||||
def _set_background(self,ax):
|
||||
"""Add three patches representing [min max],[5,95] and [25,75] percentiles, and a line at the median.
|
||||
"""
|
||||
# settings
|
||||
patch_color = 'b' #blue
|
||||
patch_lw = 0 #no edges
|
||||
patch_alpha = .15 # transparancy
|
||||
median_color = 'b' #blue
|
||||
median_width = 1.5 #linewidth
|
||||
percentiles = [0, 5, 25, 50, 75, 100]
|
||||
|
||||
# ordinate
|
||||
xax = scipy.arange(self._data.shape[self.minor_axis])
|
||||
|
||||
#vertices
|
||||
verts_0 = [] #100,0
|
||||
verts_1 = [] # 90,10
|
||||
verts_2 = [] # 75,25
|
||||
med = []
|
||||
# add top vertices the low vertices (do i need an order?)#background
|
||||
for i in xax:
|
||||
pp = prctile(self._data[i,:], [0.,5.,25,50.,75.,95.,100])
|
||||
verts_0.append((i,pp[0]))
|
||||
verts_1.append((i,pp[1]))
|
||||
verts_2.append((i,pp[2]))
|
||||
prct = prctile(self._data.take([i], self.minor_axis), percentiles)
|
||||
verts_0.append((i, prct[0]))
|
||||
verts_1.append((i, prct[1]))
|
||||
verts_2.append((i, prct[2]))
|
||||
med.append(prct[3])
|
||||
for i in xax[::-1]:
|
||||
pp = prctile(self._data[i,:], [0.,5.,25,50.,75.,95.,100])
|
||||
verts_0.append((i, pp[-1]))
|
||||
verts_1.append((i, pp[-2]))
|
||||
verts_2.append((i, pp[-3]))
|
||||
med.append(pp[3])
|
||||
prct = prctile(self._data.take([i], self.minor_axis), percentiles)
|
||||
verts_0.append((i, prct[-1]))
|
||||
verts_1.append((i, prct[-2]))
|
||||
verts_2.append((i, prct[-3]))
|
||||
|
||||
bck0 = Polygon(verts_0, alpha=.15, lw=0)
|
||||
bck1 = Polygon(verts_1, alpha=.15, lw=0)
|
||||
bck2 = Polygon(verts_2, alpha=.15, lw=0)
|
||||
# make polygons from vertices
|
||||
bck0 = Polygon(verts_0, alpha=patch_alpha, lw=patch_lw,
|
||||
facecolor=patch_color)
|
||||
bck1 = Polygon(verts_1, alpha=patch_alpha, lw=patch_lw,
|
||||
facecolor=patch_color)
|
||||
bck2 = Polygon(verts_2, alpha=patch_alpha, lw=patch_lw,
|
||||
facecolor=patch_color)
|
||||
|
||||
self.ax.add_patch(bck0)
|
||||
self.ax.add_patch(bck1)
|
||||
self.ax.add_patch(bck2)
|
||||
self.ax.plot(xax,med, 'b')
|
||||
self.ax.autoscale_view()
|
||||
|
||||
self.add(self.canvas)
|
||||
self.canvas.show()
|
||||
|
||||
#FIXME: Lineview plot cannot do selections -> disable in toolbar
|
||||
self._toolbar = PlotToolbar(self)
|
||||
self.canvas.mpl_connect('resize_event', self.clear_background)
|
||||
# add polygons to axes
|
||||
ax.add_patch(bck0)
|
||||
ax.add_patch(bck1)
|
||||
ax.add_patch(bck2)
|
||||
# median line
|
||||
ax.plot(xax, med, median_color, linewidth=median_width)
|
||||
|
||||
def clear_background(self, event):
|
||||
"""Callback on resize event. Clears the background.
|
||||
"""
|
||||
self._background = None
|
||||
|
||||
def set_current_selection(self, selection):
|
||||
"""Draws the current selection.
|
||||
"""
|
||||
ids = selection[self.current_dim] # current identifiers
|
||||
index = self.dataset.get_indices(self.current_dim, ids)
|
||||
if len(index)==0: # do we have a selection
|
||||
return
|
||||
if self.use_blit:
|
||||
if self._background is None:
|
||||
self._bbox = self.ax.bbox.deepcopy()
|
||||
self._background = self.canvas.copy_from_bbox(self.ax.bbox)
|
||||
self.canvas.restore_region(self._background)
|
||||
|
||||
if len(index)>0: # do we have a selection
|
||||
if len(self.ax.collections)>0:
|
||||
if len(self.ax.collections)>0: # remove old linecollection
|
||||
self.ax.collections = []
|
||||
segs = [self.line_segs[i] for i in index]
|
||||
line_coll = LineCollection(segs, colors=(1,0,0,1))
|
||||
line_coll.set_clip_box(self.ax.bbox)
|
||||
self.ax.update_datalim(line_coll.get_verts(self.ax.transData))
|
||||
|
||||
#draw
|
||||
if self.use_blit:
|
||||
self.ax.draw_artist(line_coll)
|
||||
line_coll.get_clip_box().get_bounds()
|
||||
self.canvas.blit()
|
||||
|
||||
else:
|
||||
self.ax.add_collection(line_coll)
|
||||
self.canvas.draw()
|
||||
|
||||
|
||||
class ScatterMarkerPlot(Plot):
|
||||
"""The ScatterMarkerPlot is faster than regular scatterplot, but
|
||||
has no color and size options."""
|
||||
|
|
@ -596,6 +628,7 @@ class ScatterPlot(Plot):
|
|||
assert y1<=y2
|
||||
|
||||
index = scipy.nonzero((xdata>x1) & (xdata<x2) & (ydata>y1) & (ydata<y2))[0]
|
||||
|
||||
ids = self.dataset_1.get_identifiers(self.current_dim, index)
|
||||
self.selection_listener(self.current_dim, ids)
|
||||
|
||||
|
|
@ -610,7 +643,7 @@ class ScatterPlot(Plot):
|
|||
if self._background is None:
|
||||
self._background = self.canvas.copy_from_bbox(self.ax.bbox)
|
||||
self.canvas.restore_region(self._background)
|
||||
lw = scipy.zeros(self.xaxis_data.shape)
|
||||
lw = scipy.zeros(self.xaxis_data.shape,'f')
|
||||
if len(index)>0:
|
||||
lw.put(2.,index)
|
||||
self.coll.set_linewidth(lw)
|
||||
|
|
|
|||
Reference in New Issue