def test_bounds_all_nans(self):
myarray = empty(10)
myarray[:] = nan
sd = ArrayDataSource(myarray)
bounds = sd.get_bounds()
self.assertTrue(isnan(bounds[0]))
self.assertTrue(isnan(bounds[1]))
def __init__(self,data_q,num): super(PlotterWindow,self).__init__() self.data_q = data_q self.x = ArrayDataSource(zeros(num)) self.y = ArrayDataSource(zeros(num)) self.v = MultiArrayDataSource(zeros((num,2))) xrange = DataRange1D() xrange.add(self.x) yrange = DataRange1D() yrange.add(self.y) quiverplot = QuiverPlot(index=self.x,value=self.y,vectors=self.v, index_mapper=LinearMapper(range=xrange), value_mapper=LinearMapper(range=yrange), bgcolor='white') add_default_axes(quiverplot) add_default_grids(quiverplot) quiverplot.tools.append(PanTool(quiverplot,constrain_key='shift')) quiverplot.overlays.append(ZoomTool(quiverplot)) self.plot = OverlayPlotContainer(quiverplot, padding=50) self.timer = Timer(50.0, self.onTimer) self.configure_traits()
def test_init_defaults(self):
data_source = ArrayDataSource()
assert_array_equal(data_source._data, [])
self.assertEqual(data_source.value_dimension, "scalar")
self.assertEqual(data_source.index_dimension, "scalar")
self.assertEqual(data_source.sort_order, "none")
self.assertFalse(data_source.is_masked())
self.assertEqual(data_source.persist_data, True)
def recalculate(self):
if self.data_range is not None:
low, high = self.data_range.low, self.data_range.high
x = _xfunc(low, high)
new_array = p_yes(self.a, self.m, self.k, x)
ArrayDataSource.set_data(self, new_array)
else:
self._data = np.array([], dtype='f')
def test_simple_map(self):
a = ArrayDataSource(array([0.0, 0.5, 1.0]))
self.colormap.range.add(a)
b = self.colormap.map_screen(a.get_data())
self.colormap.range.remove(a)
expected = array([0.0, 0.5, 1.0])
close = allclose(ravel(b[:,:1]), expected, atol=0.02)
self.assertTrue(close,
"Simple map failed. Expected %s. Got %s" % (expected, b[:,:1]))
return
def test_bounds(self):
# ascending
bounds = self.data_source.get_bounds()
self.assertEqual(bounds, (0, 9))
# descending
myarray = arange(10)[::-1]
data_source = ArrayDataSource(myarray, sort_order="descending")
bounds = data_source.get_bounds()
self.assertEqual(bounds, (0, 9))
# no order
myarray = array([12, 3, 0, 9, 2, 18, 3])
data_source = ArrayDataSource(myarray, sort_order="none")
bounds = data_source.get_bounds()
self.assertEqual(bounds, (0, 18))
def test_reverse_construction(self):
mapper = LinearMapper()
r = DataRange1D()
ds = ArrayDataSource()
ary = array([1,2,3,4,5,6,7])
mapper.range = r
mapper.low_pos = 1.0
mapper.high_pos = 7.0
r.add(ds)
ds.set_data(ary)
self.assertTrue(r.low == 1)
self.assertTrue(r.high == 7)
screen_pts = mapper.map_screen(array([1,3,7]))
self.assertTrue(tuple(screen_pts) == (1.0, 3.0, 7.0))
return
def test_piecewise_construction(self):
ary = array([1,2,3,4,5,6,7])
ds = ArrayDataSource()
ds.set_data(ary)
r = DataRange1D()
r.add(ds)
self.assert_(r.low_setting == "auto")
self.assert_(r.high_setting == "auto")
self.assert_(r.low == 1)
self.assert_(r.high == 7)
mapper = LinearMapper()
mapper.range = r
mapper.low_pos = 1.0
mapper.high_pos = 7.0
screen_pts = mapper.map_screen(array([1,3,7]))
self.assert_(tuple(screen_pts) == (1.0, 3.0, 7.0))
return
def test_array_factory(self):
""" Test that the array factory creates valid colormap. """
colors = array([[0.0,0.0,0.0], [1.0,1.0,1.0]])
cm = ColorMapper.from_palette_array(colors)
cm.range = DataRange1D()
ar = ArrayDataSource(array([0.0, 0.5, 1.0]))
cm.range.add(ar)
b = cm.map_screen(ar.get_data())
cm.range.remove(ar)
expected = array([0.0, 0.5, 1.0])
self.assertTrue(allclose(ravel(b[:,:1]), expected, atol=0.02),
"Array factory failed. Expected %s. Got %s" % (expected, b[:,:1]))
return
class PlotterWindow(HasTraits):
plot = Instance(OverlayPlotContainer)
timer = Instance(Timer)
traits_view = View(
Item('plot',editor=ComponentEditor(),show_label=False),
width=500,height=500,resizable=True,title="Plotter")
def __init__(self,data_q,num):
super(PlotterWindow,self).__init__()
self.data_q = data_q
self.x = ArrayDataSource(zeros(num))
self.y = ArrayDataSource(zeros(num))
self.v = MultiArrayDataSource(zeros((num,2)))
xrange = DataRange1D()
xrange.add(self.x)
yrange = DataRange1D()
yrange.add(self.y)
quiverplot = QuiverPlot(index=self.x,value=self.y,vectors=self.v,
index_mapper=LinearMapper(range=xrange),
value_mapper=LinearMapper(range=yrange),
bgcolor='white')
add_default_axes(quiverplot)
add_default_grids(quiverplot)
quiverplot.tools.append(PanTool(quiverplot,constrain_key='shift'))
quiverplot.overlays.append(ZoomTool(quiverplot))
self.plot = OverlayPlotContainer(quiverplot, padding=50)
self.timer = Timer(50.0, self.onTimer)
self.configure_traits()
def onTimer(self,*args):
d = self.data_q.get()
self.x.set_data(d[0])
self.y.set_data(d[1])
self.v.set_data(d[2])
def test_reverse_map(self):
# sort_order ascending
myarray = arange(10)
data_source = ArrayDataSource(myarray, sort_order='ascending')
self.assertEqual(data_source.reverse_map(4.0), 4)
# sort_order descending
myarray = arange(10)[::-1]
data_source = ArrayDataSource(myarray, sort_order='descending')
self.assertEqual(data_source.reverse_map(4.0), 5)
# sort_order none
myarray = array([12, 3, 0, 9, 2, 18, 3])
data_source = ArrayDataSource(myarray, sort_order='none')
with self.assertRaises(NotImplementedError):
data_source.reverse_map(3)
def test_bounds(self):
# ascending
myarray = arange(10)
sd = ArrayDataSource(myarray, sort_order="ascending")
bounds = sd.get_bounds()
self.assert_(bounds == (0,9))
# descending
myarray = arange(10)[::-1]
sd = ArrayDataSource(myarray, sort_order="descending")
bounds = sd.get_bounds()
self.assert_(bounds == (0,9))
# no order
myarray = array([12,3,0,9,2,18,3])
sd = ArrayDataSource(myarray, sort_order="none")
bounds = sd.get_bounds()
self.assert_(bounds == (0,18))
return
def test_change_min_max(self):
""" Test that changing min_value and max_value does not break map. """
datarange = self.colormap.range
# Perform a dummy mapping.
a = ArrayDataSource(array([0.0, 0.5, 1.0]))
datarange.add(a)
b = self.colormap.map_screen(a.get_data())
datarange.remove(a)
# Update the min_value.
datarange.low = -1.0
# Test that the map still works.
a = ArrayDataSource(array([-1.0, 0.0, 1.0]))
datarange.add(a)
b = self.colormap.map_screen(a.get_data())
datarange.remove(a)
expected = array([0.0, 0.5, 1.0])
close = allclose(ravel(b[:,:1]), expected, atol=0.02)
self.assertTrue(close,
"Changing min value broke map. Expected %s. Got %s" % (expected, b[:,:1]))
# Update the max_value.
datarange.high = 0.0
# Test that the map still works.
a = ArrayDataSource(array([-1.0, -0.5, 0.0]))
datarange.add(a)
b = self.colormap.map_screen(a.get_data())
datarange.remove(a)
expected = array([0.0, 0.5, 1.0])
close = allclose(ravel(b[:,:1]), expected, atol=0.02)
self.assertTrue(close,
"Changing min value broke map. Expected %s. Got %s" % (expected, b[:,:1]))
return
def _create_plot_component():
# Create the data and datasource objects
numpoints = 500
index = arange(numpoints)
returns = random.lognormal(0.01, 0.1, size=numpoints)
price = 100.0 * cumprod(returns)
volume = abs(random.normal(1000.0, 1500.0, size=numpoints) + 2000.0)
time_ds = ArrayDataSource(index)
vol_ds = ArrayDataSource(volume, sort_order="none")
price_ds = ArrayDataSource(price, sort_order="none")
xmapper = LinearMapper(range=DataRange1D(time_ds))
vol_mapper = LinearMapper(range=DataRange1D(vol_ds))
price_mapper = LinearMapper(range=DataRange1D(price_ds))
price_plot = FilledLinePlot(index=time_ds,
value=price_ds,
index_mapper=xmapper,
value_mapper=price_mapper,
edge_color="blue",
face_color="paleturquoise",
alpha=0.5,
bgcolor="white",
border_visible=True)
add_default_grids(price_plot)
price_plot.overlays.append(PlotAxis(price_plot, orientation='left'))
price_plot.overlays.append(PlotAxis(price_plot, orientation='bottom'))
price_plot.tools.append(
PanTool(price_plot, constrain=True, constrain_direction="x"))
price_plot.overlays.append(
ZoomTool(
price_plot,
drag_button="right",
always_on=True,
tool_mode="range",
axis="index",
color='red',
))
vol_plot = BarPlot(index=time_ds,
value=vol_ds,
index_mapper=xmapper,
value_mapper=vol_mapper,
line_color="transparent",
fill_color="black",
bar_width=1.0,
bar_width_type="screen",
antialias=False,
height=400,
resizable="h",
bgcolor="white",
border_visible=True)
add_default_grids(vol_plot)
vol_plot.underlays.append(PlotAxis(vol_plot, orientation='left'))
vol_plot.tools.append(
PanTool(vol_plot, constrain=True, constrain_direction="x"))
container = VPlotContainer(bgcolor="lightblue",
spacing=20,
padding=50,
fill_padding=False)
container.add(vol_plot)
container.add(price_plot)
container.overlays.append(
PlotLabel(
"Financial Plot",
component=container,
#font="Times New Roman 24"))
font="Arial 24"))
return container
def test_bounds_non_numeric(self):
myarray = np.array([u'abc', u'foo', u'bar', u'def'], dtype=unicode)
data_source = ArrayDataSource(myarray)
bounds = data_source.get_bounds()
self.assertEqual(bounds, (u'abc', u'def'))
def test_bounds_negative_positive_inf(self):
data_source = ArrayDataSource(array([12, 3, -np.inf, 9, 2, np.inf, 3]))
bounds = data_source.get_bounds()
self.assertEqual(bounds, (-np.inf, np.inf))
class ArrayDataSourceTestCase(UnittestTools, unittest.TestCase):
def setUp(self):
self.myarray = arange(10)
self.mymask = array([i % 2 for i in self.myarray], dtype=bool)
self.data_source = ArrayDataSource(self.myarray)
def test_init_defaults(self):
data_source = ArrayDataSource()
assert_array_equal(data_source._data, [])
self.assertEqual(data_source.value_dimension, "scalar")
self.assertEqual(data_source.index_dimension, "scalar")
self.assertEqual(data_source.sort_order, "none")
self.assertFalse(data_source.is_masked())
self.assertEqual(data_source.persist_data, True)
def test_basic_setup(self):
assert_array_equal(self.myarray, self.data_source._data)
self.assertEqual(self.data_source.value_dimension, "scalar")
self.assertEqual(self.data_source.sort_order, "none")
self.assertFalse(self.data_source.is_masked())
def test_set_data(self):
new_array = arange(0, 20, 2)
with self.assertTraitChanges(self.data_source, 'data_changed',
count=1):
self.data_source.set_data(new_array)
assert_array_equal(new_array, self.data_source._data)
self.assertEqual(self.data_source.get_bounds(), (0, 18))
self.assertEqual(self.data_source.sort_order, "none")
def test_set_data_ordered(self):
new_array = arange(20, 0, -2)
with self.assertTraitChanges(self.data_source, 'data_changed',
count=1):
self.data_source.set_data(new_array, sort_order='descending')
assert_array_equal(new_array, self.data_source._data)
self.assertEqual(self.data_source.get_bounds(), (2, 20))
self.assertEqual(self.data_source.sort_order, "descending")
def test_set_mask(self):
with self.assertTraitChanges(self.data_source, 'data_changed',
count=1):
self.data_source.set_mask(self.mymask)
assert_array_equal(self.myarray, self.data_source._data)
assert_array_equal(self.mymask, self.data_source._cached_mask)
self.assertTrue(self.data_source.is_masked())
self.assertEqual(self.data_source.get_bounds(), (0, 9))
def test_remove_mask(self):
self.data_source.set_mask(self.mymask)
self.assertTrue(self.data_source.is_masked())
with self.assertTraitChanges(self.data_source, 'data_changed',
count=1):
self.data_source.remove_mask()
assert_array_equal(self.myarray, self.data_source._data)
self.assertIsNone(self.data_source._cached_mask, None)
self.assertFalse(self.data_source.is_masked())
self.assertEqual(self.data_source.get_bounds(), (0, 9))
def test_get_data(self):
assert_array_equal(self.myarray, self.data_source.get_data())
def test_get_data_no_data(self):
data_source = ArrayDataSource(None)
assert_array_equal(data_source.get_data(), 0.0)
def test_get_data_mask(self):
self.data_source.set_mask(self.mymask)
data, mask = self.data_source.get_data_mask()
assert_array_equal(data, self.myarray)
assert_array_equal(mask, self.mymask)
@unittest.skip('get_data_mask() fails in this case')
def test_get_data_mask_no_data(self):
data_source = ArrayDataSource(None)
data, mask = data_source.get_data_mask()
assert_array_equal(data, 0.0)
assert_array_equal(mask, True)
def test_get_data_mask_no_mask(self):
data, mask = self.data_source.get_data_mask()
assert_array_equal(data, self.myarray)
assert_array_equal(mask, ones(shape=10, dtype=bool))
def test_bounds(self):
# ascending
bounds = self.data_source.get_bounds()
self.assertEqual(bounds, (0, 9))
# descending
myarray = arange(10)[::-1]
data_source = ArrayDataSource(myarray, sort_order="descending")
bounds = data_source.get_bounds()
self.assertEqual(bounds, (0, 9))
# no order
myarray = array([12, 3, 0, 9, 2, 18, 3])
data_source = ArrayDataSource(myarray, sort_order="none")
bounds = data_source.get_bounds()
self.assertEqual(bounds, (0, 18))
def test_bounds_length_one(self):
# this is special-cased in the code, so exercise the code path
data_source = ArrayDataSource(array([1.0]))
bounds = data_source.get_bounds()
self.assertEqual(bounds, (1.0, 1.0))
def test_bounds_length_zero(self):
# this is special-cased in the code, so exercise the code path
data_source = ArrayDataSource(array([]))
bounds = data_source.get_bounds()
# XXX this is sort of inconsistent with test_bounds_all_nans()
self.assertEqual(bounds, (0, 0))
def test_bounds_empty(self):
data_source = ArrayDataSource()
bounds = data_source.get_bounds()
# XXX this is sort of inconsistent with test_bounds_all_nans()
self.assertEqual(bounds, (0, 0))
def test_bounds_all_nans(self):
myarray = empty(10)
myarray[:] = nan
sd = ArrayDataSource(myarray)
bounds = sd.get_bounds()
self.assertTrue(isnan(bounds[0]))
self.assertTrue(isnan(bounds[1]))
def test_bounds_some_nan(self):
data_source = ArrayDataSource(array([np.nan, 3, 0, 9, np.nan, 18, 3]))
bounds = data_source.get_bounds()
self.assertEqual(bounds, (0, 18))
def test_bounds_negative_inf(self):
data_source = ArrayDataSource(array([12, 3, -np.inf, 9, 2, 18, 3]))
bounds = data_source.get_bounds()
self.assertEqual(bounds, (-np.inf, 18))
def test_bounds_positive_inf(self):
data_source = ArrayDataSource(array([12, 3, 0, 9, 2, np.inf, 3]))
bounds = data_source.get_bounds()
self.assertEqual(bounds, (0, np.inf))
def test_bounds_negative_positive_inf(self):
data_source = ArrayDataSource(array([12, 3, -np.inf, 9, 2, np.inf, 3]))
bounds = data_source.get_bounds()
self.assertEqual(bounds, (-np.inf, np.inf))
def test_bounds_non_numeric(self):
myarray = np.array([u'abc', u'foo', u'bar', u'def'], dtype=unicode)
data_source = ArrayDataSource(myarray)
bounds = data_source.get_bounds()
self.assertEqual(bounds, (u'abc', u'def'))
def test_data_size(self):
# We know that ArrayDataTestCase always returns the exact length of
# its data
myarray = arange(913)
data_source = ArrayDataSource(myarray)
self.assertEqual(len(myarray), data_source.get_size())
def test_reverse_map(self):
# sort_order ascending
myarray = arange(10)
data_source = ArrayDataSource(myarray, sort_order='ascending')
self.assertEqual(data_source.reverse_map(4.0), 4)
# sort_order descending
myarray = arange(10)[::-1]
data_source = ArrayDataSource(myarray, sort_order='descending')
self.assertEqual(data_source.reverse_map(4.0), 5)
# sort_order none
myarray = array([12, 3, 0, 9, 2, 18, 3])
data_source = ArrayDataSource(myarray, sort_order='none')
with self.assertRaises(NotImplementedError):
data_source.reverse_map(3)
def test_metadata(self):
self.assertEqual(self.data_source.metadata,
{'annotations': [], 'selections': []})
def test_metadata_changed(self):
with self.assertTraitChanges(self.data_source, 'metadata_changed',
count=1):
self.data_source.metadata = {'new_metadata': True}
def test_metadata_items_changed(self):
with self.assertTraitChanges(self.data_source, 'metadata_changed',
count=1):
self.data_source.metadata['new_metadata'] = True
def test_serialization_state(self):
state = self.data_source.__getstate__()
self.assertNotIn('value_dimension', state)
self.assertNotIn('index_dimension', state)
self.assertNotIn('persist_data', state)
@unittest.skip("persist_data probably shouldn't be persisted")
def test_serialization_state_no_persist(self):
self.data_source.persist_data = False
state = self.data_source.__getstate__()
self.assertNotIn('value_dimension', state)
self.assertNotIn('index_dimension', state)
self.assertNotIn('persist_data', state)
for key in ["_data", "_cached_mask", "_cached_bounds", "_min_index",
"_max_index"]:
self.assertIn(key, state)
@unittest.skip("I think this is just broken")
def test_serialization_post_load(self):
self.data_source.set_mask(self.mymask)
pickled_data_source = pickle.dumps(self.data_source)
unpickled_data_source = pickle.loads(pickled_data_source)
unpickled_data_source._post_load()
self.assertEqual(unpickled_data_source._cached_bounds, ())
self.assertEqual(unpickled_data_source._cached_mask, None)
assert_array_equal(self.data_source.get_data(),
unpickled_data_source.get_data())
mask = unpickled_data_source.get_data_mask()[1]
assert_array_equal(mask, ones(10))
def test_bounds_empty(self):
data_source = ArrayDataSource()
bounds = data_source.get_bounds()
# XXX this is sort of inconsistent with test_bounds_all_nans()
self.assertEqual(bounds, (0, 0))
def test_bounds_length_one(self):
# this is special-cased in the code, so exercise the code path
data_source = ArrayDataSource(array([1.0]))
bounds = data_source.get_bounds()
self.assertEqual(bounds, (1.0, 1.0))
def test_bounds_length_one(self):
# this is special-cased in the code, so exercise the code path
data_source = ArrayDataSource(array([1.0]))
bounds = data_source.get_bounds()
self.assertEqual(bounds, (1.0, 1.0))
def new_series(self, x=None, y=None, plotid=0, **kw):
"""
"""
plot, scatter, _line = super(ResidualsGraph,
self).new_series(x=x,
y=y,
plotid=plotid,
**kw)
for underlay in plot.underlays:
if underlay.orientation == 'bottom':
underlay.visible = False
underlay.padding_bottom = 0
plot.padding_bottom = 0
x, y, res = self.calc_residuals(plotid=plotid)
ressplit = self._split_residual(x, res)
resneg = ArrayDataSource(ressplit[1])
xneg = ArrayDataSource(ressplit[0])
respos = ArrayDataSource(ressplit[3])
xpos = ArrayDataSource(ressplit[2])
yrange = DataRange1D(ArrayDataSource(res))
ymapper = LinearMapper(range=yrange)
container = container_factory(type='o',
padding=[50, 15, 0, 30],
height=75,
resizable='h')
bar = BarPlot(index=xneg,
value=resneg,
index_mapper=scatter.index_mapper,
value_mapper=ymapper,
bar_width=0.2,
line_color='blue',
fill_color='blue',
border_visible=True)
# left_axis = PlotAxis(bar, orientation = 'left')
# bottom_axis=PlotAxis(bar,orientation='bottom')
kw = dict(vtitle='residuals')
if self.xtitle:
kw['htitle'] = self.xtitle
add_default_axes(bar, **kw)
hgrid = PlotGrid(mapper=ymapper,
component=bar,
orientation='horizontal',
line_color='lightgray',
line_style='dot')
bar.underlays.append(hgrid)
# bar.underlays.append(left_axis)
# bar.underlays.append(bottom_axis)
bar2 = BarPlot(
index=xpos,
value=respos,
index_mapper=scatter.index_mapper,
value_mapper=ymapper,
bar_width=0.2,
line_color='green',
fill_color='green',
# bgcolor = 'green',
resizable='hv',
border_visible=True,
# padding = [30, 5, 0, 30]
)
bar2.overlays.append(GuideOverlay(bar2, value=0, color=(0, 0, 0)))
bar2.underlays.append(hgrid)
container.add(bar)
container.add(bar2)
# container.add(PlotLabel('foo'))
self.residual_plots = [bar, bar2]
self.plotcontainer.add(container)
def test_get_data_no_data(self):
data_source = ArrayDataSource(None)
assert_array_equal(data_source.get_data(), 0.0)
def setUp(self):
self.myarray = arange(10)
self.mymask = array([i % 2 for i in self.myarray], dtype=bool)
self.data_source = ArrayDataSource(self.myarray)
class ArrayDataSourceTestCase(UnittestTools, unittest.TestCase):
def setUp(self):
self.myarray = arange(10)
self.mymask = array([i % 2 for i in self.myarray], dtype=bool)
self.data_source = ArrayDataSource(self.myarray)
def test_init_defaults(self):
data_source = ArrayDataSource()
assert_array_equal(data_source._data, [])
self.assertEqual(data_source.value_dimension, "scalar")
self.assertEqual(data_source.index_dimension, "scalar")
self.assertEqual(data_source.sort_order, "none")
self.assertFalse(data_source.is_masked())
self.assertEqual(data_source.persist_data, True)
def test_basic_setup(self):
assert_array_equal(self.myarray, self.data_source._data)
self.assertEqual(self.data_source.value_dimension, "scalar")
self.assertEqual(self.data_source.sort_order, "none")
self.assertFalse(self.data_source.is_masked())
def test_set_data(self):
new_array = arange(0, 20, 2)
with self.assertTraitChanges(self.data_source, 'data_changed',
count=1):
self.data_source.set_data(new_array)
assert_array_equal(new_array, self.data_source._data)
self.assertEqual(self.data_source.get_bounds(), (0, 18))
self.assertEqual(self.data_source.sort_order, "none")
def test_set_data_ordered(self):
new_array = arange(20, 0, -2)
with self.assertTraitChanges(self.data_source, 'data_changed',
count=1):
self.data_source.set_data(new_array, sort_order='descending')
assert_array_equal(new_array, self.data_source._data)
self.assertEqual(self.data_source.get_bounds(), (2, 20))
self.assertEqual(self.data_source.sort_order, "descending")
def test_set_mask(self):
with self.assertTraitChanges(self.data_source, 'data_changed',
count=1):
self.data_source.set_mask(self.mymask)
assert_array_equal(self.myarray, self.data_source._data)
assert_array_equal(self.mymask, self.data_source._cached_mask)
self.assertTrue(self.data_source.is_masked())
self.assertEqual(self.data_source.get_bounds(), (0, 9))
def test_remove_mask(self):
self.data_source.set_mask(self.mymask)
self.assertTrue(self.data_source.is_masked())
with self.assertTraitChanges(self.data_source, 'data_changed',
count=1):
self.data_source.remove_mask()
assert_array_equal(self.myarray, self.data_source._data)
self.assertIsNone(self.data_source._cached_mask, None)
self.assertFalse(self.data_source.is_masked())
self.assertEqual(self.data_source.get_bounds(), (0, 9))
def test_get_data(self):
assert_array_equal(self.myarray, self.data_source.get_data())
def test_get_data_no_data(self):
data_source = ArrayDataSource(None)
assert_array_equal(data_source.get_data(), 0.0)
def test_get_data_mask(self):
self.data_source.set_mask(self.mymask)
data, mask = self.data_source.get_data_mask()
assert_array_equal(data, self.myarray)
assert_array_equal(mask, self.mymask)
@unittest.skip('get_data_mask() fails in this case')
def test_get_data_mask_no_data(self):
data_source = ArrayDataSource(None)
data, mask = data_source.get_data_mask()
assert_array_equal(data, 0.0)
assert_array_equal(mask, True)
def test_get_data_mask_no_mask(self):
data, mask = self.data_source.get_data_mask()
assert_array_equal(data, self.myarray)
assert_array_equal(mask, ones(shape=10, dtype=bool))
def test_bounds(self):
# ascending
bounds = self.data_source.get_bounds()
self.assertEqual(bounds, (0, 9))
# descending
myarray = arange(10)[::-1]
data_source = ArrayDataSource(myarray, sort_order="descending")
bounds = data_source.get_bounds()
self.assertEqual(bounds, (0, 9))
# no order
myarray = array([12, 3, 0, 9, 2, 18, 3])
data_source = ArrayDataSource(myarray, sort_order="none")
bounds = data_source.get_bounds()
self.assertEqual(bounds, (0, 18))
def test_bounds_length_one(self):
# this is special-cased in the code, so exercise the code path
data_source = ArrayDataSource(array([1.0]))
bounds = data_source.get_bounds()
self.assertEqual(bounds, (1.0, 1.0))
def test_bounds_length_zero(self):
# this is special-cased in the code, so exercise the code path
data_source = ArrayDataSource(array([]))
bounds = data_source.get_bounds()
# XXX this is sort of inconsistent with test_bounds_all_nans()
self.assertEqual(bounds, (0, 0))
def test_bounds_empty(self):
data_source = ArrayDataSource()
bounds = data_source.get_bounds()
# XXX this is sort of inconsistent with test_bounds_all_nans()
self.assertEqual(bounds, (0, 0))
def test_bounds_all_nans(self):
myarray = empty(10)
myarray[:] = nan
sd = ArrayDataSource(myarray)
bounds = sd.get_bounds()
self.assertTrue(isnan(bounds[0]))
self.assertTrue(isnan(bounds[1]))
def test_bounds_some_nan(self):
data_source = ArrayDataSource(array([np.nan, 3, 0, 9, np.nan, 18, 3]))
bounds = data_source.get_bounds()
self.assertEqual(bounds, (0, 18))
def test_bounds_negative_inf(self):
data_source = ArrayDataSource(array([12, 3, -np.inf, 9, 2, 18, 3]))
bounds = data_source.get_bounds()
self.assertEqual(bounds, (-np.inf, 18))
def test_bounds_positive_inf(self):
data_source = ArrayDataSource(array([12, 3, 0, 9, 2, np.inf, 3]))
bounds = data_source.get_bounds()
self.assertEqual(bounds, (0, np.inf))
def test_bounds_negative_positive_inf(self):
data_source = ArrayDataSource(array([12, 3, -np.inf, 9, 2, np.inf, 3]))
bounds = data_source.get_bounds()
self.assertEqual(bounds, (-np.inf, np.inf))
def test_bounds_non_numeric(self):
myarray = np.array([u'abc', u'foo', u'bar', u'def'],
dtype=six.text_type)
data_source = ArrayDataSource(myarray)
bounds = data_source.get_bounds()
self.assertEqual(bounds, (u'abc', u'def'))
def test_data_size(self):
# We know that ArrayDataTestCase always returns the exact length of
# its data
myarray = arange(913)
data_source = ArrayDataSource(myarray)
self.assertEqual(len(myarray), data_source.get_size())
def test_reverse_map(self):
# sort_order ascending
myarray = arange(10)
data_source = ArrayDataSource(myarray, sort_order='ascending')
self.assertEqual(data_source.reverse_map(4.0), 4)
# sort_order descending
myarray = arange(10)[::-1]
data_source = ArrayDataSource(myarray, sort_order='descending')
self.assertEqual(data_source.reverse_map(4.0), 5)
# sort_order none
myarray = array([12, 3, 0, 9, 2, 18, 3])
data_source = ArrayDataSource(myarray, sort_order='none')
with self.assertRaises(NotImplementedError):
data_source.reverse_map(3)
def test_metadata(self):
self.assertEqual(self.data_source.metadata, {
'annotations': [],
'selections': []
})
def test_metadata_changed(self):
with self.assertTraitChanges(self.data_source,
'metadata_changed',
count=1):
self.data_source.metadata = {'new_metadata': True}
def test_metadata_items_changed(self):
with self.assertTraitChanges(self.data_source,
'metadata_changed',
count=1):
self.data_source.metadata['new_metadata'] = True
def test_serialization_state(self):
state = self.data_source.__getstate__()
self.assertNotIn('value_dimension', state)
self.assertNotIn('index_dimension', state)
self.assertNotIn('persist_data', state)
@unittest.skip("persist_data probably shouldn't be persisted")
def test_serialization_state_no_persist(self):
self.data_source.persist_data = False
state = self.data_source.__getstate__()
self.assertNotIn('value_dimension', state)
self.assertNotIn('index_dimension', state)
self.assertNotIn('persist_data', state)
for key in [
"_data", "_cached_mask", "_cached_bounds", "_min_index",
"_max_index"
]:
self.assertIn(key, state)
@unittest.skip("I think this is just broken")
def test_serialization_post_load(self):
self.data_source.set_mask(self.mymask)
pickled_data_source = pickle.dumps(self.data_source)
unpickled_data_source = pickle.loads(pickled_data_source)
unpickled_data_source._post_load()
self.assertEqual(unpickled_data_source._cached_bounds, ())
self.assertEqual(unpickled_data_source._cached_mask, None)
assert_array_equal(self.data_source.get_data(),
unpickled_data_source.get_data())
mask = unpickled_data_source.get_data_mask()[1]
assert_array_equal(mask, ones(10))
def test_data_size(self):
# We know that ArrayDataTestCase always returns the exact length of
# its data
myarray = arange(913)
data_source = ArrayDataSource(myarray)
self.assertEqual(len(myarray), data_source.get_size())
def test_bounds_non_numeric(self):
myarray = np.array([u'abc', u'foo', u'bar', u'def'],
dtype=six.text_type)
data_source = ArrayDataSource(myarray)
bounds = data_source.get_bounds()
self.assertEqual(bounds, (u'abc', u'def'))
def test_get_data_no_data(self):
data_source = ArrayDataSource(None)
assert_array_equal(data_source.get_data(), 0.0)
def test_bounds_negative_positive_inf(self):
data_source = ArrayDataSource(array([12, 3, -np.inf, 9, 2, np.inf, 3]))
bounds = data_source.get_bounds()
self.assertEqual(bounds, (-np.inf, np.inf))
def test_bounds_non_numeric(self):
myarray = np.array([u'abc', u'foo', u'bar', u'def'], dtype=unicode)
sd = ArrayDataSource(myarray)
bounds = sd.get_bounds()
self.assertEqual(bounds, (u'abc', u'def'))
def test_get_data_mask_no_data(self):
data_source = ArrayDataSource(None)
data, mask = data_source.get_data_mask()
assert_array_equal(data, 0.0)
assert_array_equal(mask, True)
def test_basic_set_get(self):
myarray = arange(10)
sd = ArrayDataSource(myarray)
self.assertTrue(allclose(myarray, sd._data))
self.assert_(sd.value_dimension == "scalar")
return
def test_bounds_length_zero(self):
# this is special-cased in the code, so exercise the code path
data_source = ArrayDataSource(array([]))
bounds = data_source.get_bounds()
# XXX this is sort of inconsistent with test_bounds_all_nans()
self.assertEqual(bounds, (0, 0))
def test_data_size(self):
# We know that ScalarData always returns the exact length of its data
myarray = arange(913)
sd = ArrayDataSource(myarray)
self.assert_(len(myarray) == sd.get_size())
return
def _create_plot_component():
numpts = 50
x = random.rand(numpts)
y = random.rand(numpts)
cls = random.rand(numpts)
colors = [1.0 if i > 0.5 else 0.0 for i in cls]
marker = [1.0 if i > 0.5 else 0.0 for i in cls]
#plt.figure()
#plt.scatter(x,y,c=colors)
#plt.show()
# Create some data
# marker_size = numpy.random.normal(4.0, 4.0, numpts)
# Create a plot data object and give it this data
pd = ArrayPlotData()
pd.set_data("index", x)
pd.set_data("value", y)
# Because this is a non-standard renderer, we can't call plot.plot, which
# sets up the array data sources, mappers and default index/value ranges.
# So, its gotta be done manually for now.
index_ds = ArrayDataSource(x)
value_ds = ArrayDataSource(y)
color_ds = ArrayDataSource(colors)
# Create the plot
plot = Plot(pd)
plot.index_range.add(index_ds)
plot.value_range.add(value_ds)
# Create the index and value mappers using the plot data ranges
imapper = LinearMapper(range=plot.index_range)
vmapper = LinearMapper(range=plot.value_range)
# Create the scatter renderer
scatter = ColormappedScatterPlot(
index=index_ds,
value=value_ds,
color_data=color_ds,
color_mapper=jet(range=DataRange1D(low=0.0, high=1.0)),
fill_alpha=0.4,
index_mapper=imapper,
value_mapper=vmapper,
marker='circle',
marker_size=4)
# Append the renderer to the list of the plot's plots
plot.add(scatter)
plot.plots['var_size_scatter'] = [scatter]
# Tweak some of the plot properties
plot.title = "Colored Scatter Plot"
plot.line_width = 0.5
plot.padding = 50
# Attach some tools to the plot
plot.tools.append(PanTool(plot, constrain_key="shift"))
zoom = ZoomTool(component=plot, tool_mode="box", always_on=False)
plot.overlays.append(zoom)
return plot
def create_gridded_scatter_plot(x,
y,
orientation="h",
color="red",
width=1.0,
fill_color="red",
marker="square",
marker_size=2,
value_mapper_class=LinearMapper,
padding=30):
assert len(x) == len(y)
# If you know it is monotonically increasing, sort_order can
# be set to 'ascending'
index = ArrayDataSource(x, sort_order='none')
value = ArrayDataSource(y, sort_order="none")
index_range = DataRange1D(tight_bounds=False)
index_range.add(index)
index_mapper = LinearMapper(range=index_range)
value_range = DataRange1D(tight_bounds=False)
value_range.add(value)
value_mapper = value_mapper_class(range=value_range)
plot = ScatterPlot(
index=index,
value=value,
index_mapper=index_mapper,
value_mapper=value_mapper,
orientation=orientation,
color=color,
fill_color=fill_color,
marker=marker,
marker_size=marker_size,
padding=[40, 15, 15, 20], # left, right, top, bottom
border_visible=True,
border_width=1,
bgcolor="white",
use_backbuffer=True,
backbuffer_padding=False,
unified_draw=True,
draw_layer="plot",
overlay_border=True)
vertical_grid = PlotGrid(component=plot,
mapper=index_mapper,
orientation='vertical',
line_color="gray",
line_style='dot',
use_draw_order=True)
horizontal_grid = PlotGrid(component=plot,
mapper=value_mapper,
orientation='horizontal',
line_color="gray",
line_style='dot',
use_draw_order=True)
vertical_axis = PlotAxis(orientation='left',
mapper=plot.value_mapper,
use_draw_order=True)
horizontal_axis = PlotAxis(orientation='bottom',
title='Time (s)',
mapper=plot.index_mapper,
use_draw_order=True)
plot.underlays.append(vertical_grid)
plot.underlays.append(horizontal_grid)
# Have to add axes to overlays because we are backbuffering the main plot,
# and only overlays get to render in addition to the backbuffer.
plot.overlays.append(vertical_axis)
plot.overlays.append(horizontal_axis)
return plot
def test_bounds_some_nan(self):
data_source = ArrayDataSource(array([np.nan, 3, 0, 9, np.nan, 18, 3]))
bounds = data_source.get_bounds()
self.assertEqual(bounds, (0, 18))
def test_bounds_empty(self):
data_source = ArrayDataSource()
bounds = data_source.get_bounds()
# XXX this is sort of inconsistent with test_bounds_all_nans()
self.assertEqual(bounds, (0, 0))
def setUp(self):
self.myarray = arange(10)
self.mymask = array([i % 2 for i in self.myarray], dtype=bool)
self.data_source = ArrayDataSource(self.myarray)
mod_publisher = NumpyPublisher(
reactive_data_generator, 'mod', frequency=30,
)
# Create a data sources
sin_data_source = DataSource(publisher=sin_publisher, buffer_size=2250)
mod_data_source = DataSource(publisher=mod_publisher, buffer_size=2250)
# Bind the data sources to their publishers
sin_data_source.bind()
mod_data_source.bind()
#--------------------------------------------------------------------------
# Plot Generation
#--------------------------------------------------------------------------
sin_index = ArrayDataSource([])
sin_value = ArrayDataSource([])
mod_index = ArrayDataSource([])
mod_value = ArrayDataSource([])
x_mapper = LinearMapper(range=DataRange1D(sin_index))
y_mapper = LinearMapper(range=DataRange1D(sin_value))
y_mapper.range.low_setting = -2.2
y_mapper.range.high_setting = 2.2
sin_line_plot = LinePlot(
index=sin_index, value=sin_value, index_mapper=x_mapper,
value_mapper=y_mapper, color='darkblue',
)
def test_data_size(self):
# We know that ArrayDataTestCase always returns the exact length of
# its data
myarray = arange(913)
data_source = ArrayDataSource(myarray)
self.assertEqual(len(myarray), data_source.get_size())
def test_data_size(self):
# We know that ScalarData always returns the exact length of its data
myarray = arange(913)
sd = ArrayDataSource(myarray)
self.assert_(len(myarray) == sd.get_size())
return
def _plot_default(self):
plotdata = ArrayPlotData()
plot = MapPlot(plotdata,
auto_grid=False,
bgcolor=self.land_color)
plot.x_axis.visible = False
plot.y_axis.visible = False
plot.padding = (0, 0, 0, 0)
plot.border_visible = False
index_mapper = LinearMapper(range=plot.index_range)
value_mapper = LinearMapper(range=plot.value_range)
if self.model.lake is not None:
line_lengths = [l.length for l in self.model.lake.shoreline]
idx_max = line_lengths.index(max(line_lengths))
for num, l in enumerate(self.model.lake.shoreline):
line = np.array(l.coords)
x = line[:,0]
y = line[:,1]
# assume that the longest polygon is lake, all others islands
if num == idx_max:
color = self.lake_color
else:
color = self.land_color
polyplot = PolygonPlot(index=ArrayDataSource(x),
value=ArrayDataSource(y),
edge_color=self.shore_color,
face_color=color,
index_mapper=index_mapper,
value_mapper=value_mapper)
plot.add(polyplot)
for num, line in enumerate(self.survey_lines):
coords = np.array(line.navigation_line.coords)
x = coords[:,0]
y = coords[:,1]
x_key = 'x-line' + str(num)
y_key = 'y-line' + str(num)
plotdata.set_data(x_key, x)
plotdata.set_data(y_key, y)
self.line_plots[line.name] = plot.plot((x_key, y_key),
color=self.line_color)
for core in self.model.core_samples:
x, y = core.location
scatterplot = ScatterPlot(index=ArrayDataSource([x]),
value=ArrayDataSource([y]),
marker='circle',
color=self.core_color,
outline_color=self.core_color,
index_mapper=index_mapper,
value_mapper=value_mapper)
plot.add(scatterplot)
self._set_line_colors()
if self.model.lake is not None:
x_min, y_min, x_max, y_max = self.model.lake.shoreline.bounds
index_mapper.range.high = x_max
index_mapper.range.low = x_min
value_mapper.range.high = y_max
value_mapper.range.low = y_min
plot.tools.append(PanTool(plot))
plot.tools.append(ZoomTool(plot))
self.line_select_tool = LineSelectTool(plot, line_plots=self.line_plots)
# single click in map sets 'select point': toggle in selected lines
self.line_select_tool.on_trait_event(self.select_point, 'select_point')
# double click in map sets 'current point': change current survey line
self.line_select_tool.on_trait_event(self.current_point, 'current_point')
plot.tools.append(self.line_select_tool)
return plot
def test_bounds_length_zero(self):
# this is special-cased in the code, so exercise the code path
data_source = ArrayDataSource(array([]))
bounds = data_source.get_bounds()
# XXX this is sort of inconsistent with test_bounds_all_nans()
self.assertEqual(bounds, (0, 0))
def test_get_data_mask_no_data(self):
data_source = ArrayDataSource(None)
data, mask = data_source.get_data_mask()
assert_array_equal(data, 0.0)
assert_array_equal(mask, True)
def test_bounds_some_nan(self):
data_source = ArrayDataSource(array([np.nan, 3, 0, 9, np.nan, 18, 3]))
bounds = data_source.get_bounds()
self.assertEqual(bounds, (0, 18))
def create_timechart_container(project):
""" create a vplotcontainer which connects all the inside plots to synchronize their index_range """
# find index limits
low = 1 << 64
high = 0
for i in range(len(project.c_states)):
if len(project.c_states[i].start_ts):
low = min(low, project.c_states[i].start_ts[0])
high = max(high, project.c_states[i].end_ts[-1])
if len(project.p_states[i].start_ts):
low = min(low, project.p_states[i].start_ts[0])
high = max(high, project.p_states[i].start_ts[-1])
for tc in project.processes:
if len(tc.start_ts):
low = min(low, tc.start_ts[0])
high = max(high, tc.end_ts[-1])
project.process_stats(low, high)
if low > high:
low = 0
high = 1
# we have the same x_mapper/range for each plots
index_range = DataRange1D(low=low, high=high)
index_mapper = LinearMapper(range=index_range, domain_limit=(low, high))
value_range = DataRange1D(low=0,
high=project.num_cpu * 2 + project.num_process)
value_mapper = LinearMapper(range=value_range,
domain_limit=(0, project.num_cpu * 2 +
project.num_process))
index = ArrayDataSource(array((low, high)), sort_order="ascending")
plot = tcPlot(index=index,
proj=project,
bgcolor="white",
padding=(0, 0, 0, 40),
use_backbuffer=True,
fill_padding=True,
value_mapper=value_mapper,
index_mapper=index_mapper,
line_color="black",
render_style='hold',
line_width=1)
plot.lowest_i = low
plot.highest_i = high
project.on_trait_change(plot.invalidate, "plot_redraw")
project.on_trait_change(plot.invalidate, "selected")
max_process = 50
if value_range.high > max_process:
value_range.low = value_range.high - max_process
# Attach some tools
plot.tools.append(tools.myPanTool(plot, drag_button='left'))
zoom = tools.myZoomTool(component=plot,
tool_mode="range",
always_on=True,
axis="index",
drag_button=None,
zoom_to_mouse=True,
x_max_zoom_factor=float("inf"),
x_min_zoom_factor=float("-inf"))
plot.tools.append(zoom)
plot.range_selection = tools.myRangeSelection(plot, resize_margin=3)
plot.tools.append(plot.range_selection)
plot.overlays.append(
RangeSelectionOverlay(component=plot,
axis="index",
use_backbuffer=True))
axe = PlotAxis(orientation='bottom',
title='time',
mapper=index_mapper,
component=plot)
plot.underlays.append(axe)
plot.options.connect(plot)
plot.range_tools.connect(plot)
return plot
def get_plot_component(self):
# Create the array plot data that will feed our plots
data = self.model.data
plot_data = ArrayPlotData(
index=data['dates'],
close=data['close'],
volume=data['volume'],
)
self.plot_data = plot_data
# Need to make the FilledLinePlot manually since Plot doesn't
# support that plot type.
times = ArrayDataSource(data['dates'])
prices = ArrayDataSource(data['close'])
close_plot = FilledLinePlot(
index=times,
value=prices,
index_mapper=LinearMapper(range=DataRange1D(times)),
value_mapper=LinearMapper(range=DataRange1D(prices)),
edge_color='blue',
face_color='paleturquoise',
bgcolor='white',
border_visible=True)
close_plot.padding = [40, 15, 15, 20]
self.close_plot = close_plot
# The second plotter object which generates our candle plot
plotter2 = Plot(data=plot_data)
low_plot = plotter2.plot(('index', 'close'), )[0]
low_plot.height = 100
low_plot.resizable = 'h'
low_plot.bgcolor = 'white'
low_plot.border_visible = True
low_plot.padding = [40, 15, 15, 20]
low_plot.color = 'darkred'
low_plot.line_width = 1.5
self.low_plot = low_plot
# The third plotter for the bar plot.
plotter3 = Plot(data=plot_data)
bar_plot = plotter3.plot(('index', 'volume'), type='bar')[0]
bar_plot.height = 100
bar_plot.resizable = 'h'
bar_plot.bgcolor = 'white'
bar_plot.border_visible = True
bar_plot.padding = [40, 15, 15, 20]
bar_plot.line_color = 'transparent'
bar_plot.fill_color = 'black'
bar_plot.bar_width = 3.0
bar_plot.bar_width_type = 'screen'
bar_plot.antialias = False
bar_plot.index_mapper = low_plot.index_mapper
self.bar_plot = bar_plot
for plot in (close_plot, low_plot, bar_plot):
ticker = ScalesTickGenerator(scale=CalendarScaleSystem())
bottom_axis = PlotAxis(plot,
orientation='bottom',
tick_generator=ticker)
plot.overlays.append(bottom_axis)
plot.overlays.append(PlotAxis(plot, orientation='left'))
hgrid, vgrid = add_default_grids(plot)
vgrid.tick_generator = bottom_axis.tick_generator
def vol_label_formatter(val):
return '%.1E' % val
bar_plot.overlays[-1].tick_label_formatter = vol_label_formatter
container = VPlotContainer(
bgcolor=(240 / 255., 240 / 255., 240 / 255., 1.0),
spacing=20,
padding=20,
fill_padding=True,
stack_order='top_to_bottom',
use_back_buffer=True,
)
container.add(close_plot)
container.add(low_plot)
container.add(bar_plot)
close_plot.controller = RangeSelection(close_plot)
zoom_overlay = ZoomOverlay(source=close_plot,
destination=low_plot,
other=bar_plot)
container.overlays.append(zoom_overlay)
return container