def _plot_default(self):
container = DataView()
xds = FunctionDataSource(func=self.xfunc)
yds = FunctionDataSource(func=self.yfunc)
xmapper = container.x_mapper
ymapper = container.y_mapper
xds.data_range = xmapper.range
yds.data_range = xmapper.range
xmapper.range.set_bounds(-5, 10)
ymapper.range.set_bounds(-1, 1.2)
plot = ScatterPlot(index=xds,
value=yds,
index_mapper=xmapper,
value_mapper=ymapper,
color="green",
marker="circle",
marker_size=3,
line_width=0)
plot2 = LinePlot(index=xds,
value=yds,
index_mapper=xmapper,
value_mapper=ymapper,
color="lightgray")
container.add(plot2, plot)
plot.tools.append(
PanTool(plot, constrain_direction="x", constrain=True))
plot.tools.append(ZoomTool(plot, axis="index", tool_mode="range"))
return container
def test_get_data_no_data(self):
self.data_source = FunctionDataSource()
assert_array_equal(self.data_source.get_data(), array([], dtype=float))
def test_init_defaults(self):
data_source = FunctionDataSource()
assert_array_equal(data_source._data, [])
self.assertEqual(data_source.value_dimension, "scalar")
self.assertEqual(data_source.sort_order, "ascending")
self.assertFalse(data_source.is_masked())
def setUp(self):
self.myfunc = lambda low, high: linspace(low, high, 101)**2
self.data_source = FunctionDataSource(func=self.myfunc)
