import datetime as dt
import re
import numpy as np
from bokeh.models import Div, GlyphRenderer, GridPlot, Spacer, Tabs, Title, Toolbar
from bokeh.models.layouts import TabPanel
from bokeh.plotting import figure
from holoviews.core import (
Dataset,
Dimension,
DynamicMap,
Empty,
GridSpace,
HoloMap,
Layout,
NdLayout,
NdOverlay,
)
from holoviews.element import Curve, Histogram, Image, Points, Scatter
from holoviews.streams import Stream
from holoviews.util import opts, render
from holoviews.util.transform import dim
from ...utils import LoggingComparisonTestCase
from .test_plot import TestBokehPlot, bokeh_renderer
class TestLayoutPlot(LoggingComparisonTestCase, TestBokehPlot):
def test_layout_update_visible(self):
hmap = HoloMap({i: Curve(np.arange(i), label='A') for i in range(1, 3)})
hmap2 = HoloMap({i: Curve(np.arange(i), label='B') for i in range(3, 5)})
plot = bokeh_renderer.get_plot(hmap+hmap2)
subplot1, subplot2 = (p for k, p in sorted(plot.subplots.items()))
subplot1 = subplot1.subplots['main']
subplot2 = subplot2.subplots['main']
self.assertTrue(subplot1.handles['glyph_renderer'].visible)
self.assertFalse(subplot2.handles['glyph_renderer'].visible)
plot.update((4,))
self.assertFalse(subplot1.handles['glyph_renderer'].visible)
self.assertTrue(subplot2.handles['glyph_renderer'].visible)
def test_layout_framewise_norm(self):
img1 = Image(np.mgrid[0:5, 0:5][0]).opts(framewise=True)
img2 = Image(np.mgrid[0:5, 0:5][0]*10).opts(framewise=True)
plot = bokeh_renderer.get_plot(img1+img2)
img1_plot, img2_plot = (sp.subplots['main'] for sp in plot.subplots.values())
img1_cmapper = img1_plot.handles['color_mapper']
img2_cmapper = img2_plot.handles['color_mapper']
self.assertEqual(img1_cmapper.low, 0)
self.assertEqual(img2_cmapper.low, 0)
self.assertEqual(img1_cmapper.high, 40)
self.assertEqual(img2_cmapper.high, 40)
def test_layout_framewise_matching_norm_update(self):
img1 = Image(np.mgrid[0:5, 0:5][0], vdims='z').opts(framewise=True, axiswise=True)
stream = Stream.define('zscale', value=1)()
transform = dim('z')*stream.param.value
img2 = Image(np.mgrid[0:5, 0:5][0], vdims='z').apply.transform(
z=transform).opts(framewise=True, axiswise=True)
plot = bokeh_renderer.get_plot(img1+img2)
img1_plot = plot.subplots[(0, 0)].subplots['main']
img2_plot = plot.subplots[(0, 1)].subplots['main']
img1_cmapper = img1_plot.handles['color_mapper']
img2_cmapper = img2_plot.handles['color_mapper']
self.assertEqual(img1_cmapper.low, 0)
self.assertEqual(img2_cmapper.low, 0)
self.assertEqual(img1_cmapper.high, 4)
self.assertEqual(img2_cmapper.high, 4)
stream.update(value=10)
self.assertEqual(img1_cmapper.high, 4)
self.assertEqual(img2_cmapper.high, 40)
stream.update(value=2)
self.assertEqual(img1_cmapper.high, 4)
self.assertEqual(img2_cmapper.high, 8)
def test_layout_framewise_nonmatching_norm_update(self):
img1 = Image(np.mgrid[0:5, 0:5][0], vdims='z').opts(framewise=True)
stream = Stream.define('zscale', value=1)()
transform = dim('z2')*stream.param.value
img2 = Image(np.mgrid[0:5, 0:5][0], vdims='z2').apply.transform(
z2=transform).opts(framewise=True)
plot = bokeh_renderer.get_plot(img1+img2)
img1_plot = plot.subplots[(0, 0)].subplots['main']
img2_plot = plot.subplots[(0, 1)].subplots['main']
img1_cmapper = img1_plot.handles['color_mapper']
img2_cmapper = img2_plot.handles['color_mapper']
self.assertEqual(img1_cmapper.low, 0)
self.assertEqual(img2_cmapper.low, 0)
self.assertEqual(img1_cmapper.high, 4)
self.assertEqual(img2_cmapper.high, 4)
stream.update(value=10)
self.assertEqual(img1_cmapper.high, 4)
self.assertEqual(img2_cmapper.high, 40)
stream.update(value=2)
self.assertEqual(img1_cmapper.high, 4)
self.assertEqual(img2_cmapper.high, 8)
def test_layout_title(self):
hmap1 = HoloMap({a: Image(np.random.rand(10,10)) for a in range(3)})
hmap2 = HoloMap({a: Image(np.random.rand(10,10)) for a in range(3)})
plot = bokeh_renderer.get_plot(hmap1+hmap2)
title = plot.handles['title']
self.assertIsInstance(title, Div)
text = ('Default: 0')
self.assertEqual(title.text, text)
def test_layout_title_format(self):
title_str = ('Label: {label}, group: {group}, '
'dims: {dimensions}, type: {type}')
layout = NdLayout(
{'Element 1': Scatter(
[],
label='ONE',
group='first',
), 'Element 2': Scatter(
[],
label='TWO',
group='second',
)},
kdims='MYDIM',
label='the_label',
group='the_group',
).opts(opts.NdLayout(title=title_str), opts.Scatter(title=title_str))
# Title of NdLayout
title = bokeh_renderer.get_plot(layout).handles['title']
self.assertIsInstance(title, Div)
text = 'Label: the_label, group: the_group, dims: , type: NdLayout'
self.assertEqual(re.split('>|Default: 0')
self.assertEqual(title.text, text)
def test_layout_title_show_title_false(self):
hmap1 = HoloMap({a: Image(np.random.rand(10,10)) for a in range(3)})
hmap2 = HoloMap({a: Image(np.random.rand(10,10)) for a in range(3)})
layout = Layout([hmap1, hmap2]).opts(show_title=False)
plot = bokeh_renderer.get_plot(layout)
self.assertTrue('title' not in plot.handles)
def test_layout_title_update(self):
hmap1 = HoloMap({a: Image(np.random.rand(10,10)) for a in range(3)})
hmap2 = HoloMap({a: Image(np.random.rand(10,10)) for a in range(3)})
plot = bokeh_renderer.get_plot(hmap1+hmap2)
plot.update(1)
title = plot.handles['title']
self.assertIsInstance(title, Div)
text = ('Default: 1')
self.assertEqual(title.text, text)
def test_layout_gridspaces(self):
layout = (GridSpace({(i, j): Curve(range(i+j)) for i in range(1, 3)
for j in range(2,4)}) +
GridSpace({(i, j): Curve(range(i+j)) for i in range(1, 3)
for j in range(2,4)}) +
Curve(range(10))).cols(2)
layout_plot = bokeh_renderer.get_plot(layout)
plot = layout_plot.state
self.assertIsInstance(plot, GridPlot)
self.assertEqual(len(plot.children), 3)
self.assertIsInstance(plot.toolbar, Toolbar)
(grid1, *_), (grid2, *_), (fig, *_) = plot.children
self.assertIsInstance(grid1, GridPlot)
self.assertIsInstance(grid2, GridPlot)
self.assertIsInstance(fig, figure)
self.assertEqual(len(grid1.children), 3)
_, (inner_grid1, *_), _ = grid1.children
self.assertIsInstance(inner_grid1, GridPlot)
self.assertEqual(len(grid2.children), 3)
_, (inner_grid2, *_), _ = grid2.children
self.assertIsInstance(inner_grid2, GridPlot)
for grid in [inner_grid1, inner_grid2]:
self.assertEqual(len(grid.children), 4)
for gfig, *_ in grid.children:
self.assertIsInstance(gfig, figure)
def test_layout_instantiate_subplots(self):
layout = (Curve(range(10)) + Curve(range(10)) + Image(np.random.rand(10,10)) +
Curve(range(10)) + Curve(range(10)))
plot = bokeh_renderer.get_plot(layout)
positions = [(0, 0), (0, 1), (0, 2), (0, 3), (1, 0)]
self.assertEqual(sorted(plot.subplots.keys()), positions)
def test_layout_instantiate_subplots_transposed(self):
layout = (Curve(range(10)) + Curve(range(10)) + Image(np.random.rand(10,10)) +
Curve(range(10)) + Curve(range(10)))
plot = bokeh_renderer.get_plot(layout.opts(transpose=True))
positions = [(0, 0), (0, 1), (1, 0), (2, 0), (3, 0)]
self.assertEqual(sorted(plot.subplots.keys()), positions)
def test_empty_adjoint_plot(self):
adjoint = Curve([0,1,1,2,3]) << Empty() << Curve([0,1,1,0,1])
plot = bokeh_renderer.get_plot(adjoint)
adjoint_plot = plot.subplots[(0, 0)]
self.assertEqual(len(adjoint_plot.subplots), 3)
grid = plot.state
(f1, *_), (f2, *_), (s1, *_) = grid.children
self.assertIsInstance(grid, GridPlot)
self.assertIsInstance(s1, Spacer)
self.assertEqual(s1.width, 0)
self.assertEqual(s1.height, 0)
self.assertEqual(f1.height, f2.height)
self.assertEqual(f1.height, 300)
def test_empty_adjoint_plot_with_renderer(self):
# https://github.com/holoviz/holoviews/pull/5584
scatter = Scatter(range(10))
adjoin_layout_plot = scatter << Empty() << scatter.hist(adjoin=False)
# To render the plot
bokeh_renderer(adjoin_layout_plot)
def test_layout_plot_with_adjoints(self):
layout = (Curve([]) + Curve([]).hist()).cols(1)
plot = bokeh_renderer.get_plot(layout)
grid = plot.state
toolbar = grid.toolbar
self.assertIsInstance(toolbar, Toolbar)
self.assertIsInstance(grid, GridPlot)
for (fig, _, _) in grid.children:
self.assertIsInstance(fig, figure)
self.assertTrue([len([r for r in f.renderers if isinstance(r, GlyphRenderer)])
for (f, _, _) in grid.children], [1, 1, 1])
def test_layout_plot_tabs_with_adjoints(self):
layout = (Curve([]) + Curve([]).hist()).opts(tabs=True)
plot = bokeh_renderer.get_plot(layout)
self.assertIsInstance(plot.state, Tabs)
panel1, panel2 = plot.state.tabs
self.assertIsInstance(panel1, TabPanel)
self.assertIsInstance(panel2, TabPanel)
self.assertEqual(panel1.title, 'Curve I')
self.assertEqual(panel2.title, 'AdjointLayout I')
def test_layout_shared_source_synced_update(self):
hmap = HoloMap({i: Dataset({chr(65+j): np.random.rand(i+2)
for j in range(4)}, kdims=['A', 'B', 'C', 'D'])
for i in range(3)})
# Create two holomaps of points sharing the same data source
hmap1= hmap.map(lambda x: Points(x.clone(kdims=['A', 'B'])), Dataset)
hmap2 = hmap.map(lambda x: Points(x.clone(kdims=['D', 'C'])), Dataset)
# Pop key (1,) for one of the HoloMaps and make Layout
hmap2.pop((1,))
layout = (hmap1 + hmap2).opts(shared_datasource=True)
# Get plot
plot = bokeh_renderer.get_plot(layout)
# Check plot created shared data source and recorded expected columns
sources = plot.handles.get('shared_sources', [])
source_cols = plot.handles.get('source_cols', {})
self.assertEqual(len(sources), 1)
source = sources[0]
data = source.data
cols = source_cols[id(source)]
self.assertEqual(set(cols), {'A', 'B', 'C', 'D'})
# Ensure the source contains the expected columns
self.assertEqual(set(data.keys()), {'A', 'B', 'C', 'D'})
# Update to key (1,) and check the source contains data
# corresponding to hmap1 and filled in NaNs for hmap2,
# which was popped above
plot.update((1,))
self.assertEqual(data['A'], hmap1[1].dimension_values(0))
self.assertEqual(data['B'], hmap1[1].dimension_values(1))
self.assertEqual(data['C'], np.full_like(hmap1[1].dimension_values(0), np.nan))
self.assertEqual(data['D'], np.full_like(hmap1[1].dimension_values(0), np.nan))
def test_shared_axes(self):
curve = Curve(range(10))
img = Image(np.random.rand(10,10))
plot = bokeh_renderer.get_plot(curve+img)
plot = plot.subplots[(0, 1)].subplots['main']
x_range, y_range = plot.handles['x_range'], plot.handles['y_range']
self.assertEqual((x_range.start, x_range.end), (-.5, 9))
self.assertEqual((y_range.start, y_range.end), (-.5, 9))
def test_shared_axes_disable(self):
curve = Curve(range(10))
img = Image(np.random.rand(10,10)).opts(shared_axes=False)
plot = bokeh_renderer.get_plot(curve+img)
plot = plot.subplots[(0, 1)].subplots['main']
x_range, y_range = plot.handles['x_range'], plot.handles['y_range']
self.assertEqual((x_range.start, x_range.end), (-.5, .5))
self.assertEqual((y_range.start, y_range.end), (-.5, .5))
def test_layout_empty_subplots(self):
layout = Curve(range(10)) + NdOverlay() + HoloMap() + HoloMap({1: Image(np.random.rand(10,10))})
plot = bokeh_renderer.get_plot(layout)
self.assertEqual(len(plot.subplots.values()), 2)
self.log_handler.assertContains('WARNING', 'skipping subplot')
self.log_handler.assertContains('WARNING', 'skipping subplot')
def test_layout_set_toolbar_location(self):
layout = (Curve([]) + Points([])).opts(toolbar='left')
plot = bokeh_renderer.get_plot(layout)
self.assertIsInstance(plot.state, GridPlot)
self.assertIsInstance(plot.state.toolbar, Toolbar)
def test_layout_disable_toolbar(self):
layout = (Curve([]) + Points([])).opts(toolbar=None)
plot = bokeh_renderer.get_plot(layout)
self.assertIsInstance(plot.state, GridPlot)
self.assertEqual(len(plot.state.children), 2)
def test_layout_shared_inverted_yaxis(self):
layout = (Curve([]) + Curve([])).opts('Curve', invert_yaxis=True)
plot = bokeh_renderer.get_plot(layout)
subplot = next(iter(plot.subplots.values())).subplots['main']
self.assertEqual(subplot.handles['y_range'].start, 1)
self.assertEqual(subplot.handles['y_range'].end, 0)
def test_layout_dimensioned_stream_title_update(self):
stream = Stream.define('Test', test=0)()
dmap = DynamicMap(lambda test: Curve([]), kdims=['test'], streams=[stream])
layout = dmap + Curve([])
plot = bokeh_renderer.get_plot(layout)
self.assertIn('test: 0', plot.handles['title'].text)
stream.event(test=1)
self.assertIn('test: 1', plot.handles['title'].text)
plot.cleanup()
self.assertEqual(stream._subscribers, [])
def test_layout_axis_link_matching_name_label(self):
layout = Curve([1, 2, 3], vdims=('a', 'A')) + Curve([1, 2, 3], vdims=('a', 'A'))
plot = bokeh_renderer.get_plot(layout)
p1, p2 = (sp.subplots['main'] for sp in plot.subplots.values())
self.assertIs(p1.handles['y_range'], p2.handles['y_range'])
def test_layout_axis_not_linked_mismatching_name(self):
layout = Curve([1, 2, 3], vdims=('b', 'A')) + Curve([1, 2, 3], vdims=('a', 'A'))
plot = bokeh_renderer.get_plot(layout)
p1, p2 = (sp.subplots['main'] for sp in plot.subplots.values())
self.assertIsNot(p1.handles['y_range'], p2.handles['y_range'])
def test_layout_axis_linked_unit_and_no_unit(self):
layout = (Curve([1, 2, 3], vdims=Dimension('length', unit='m')) +
Curve([1, 2, 3], vdims='length'))
plot = bokeh_renderer.get_plot(layout)
p1, p2 = (sp.subplots['main'] for sp in plot.subplots.values())
self.assertIs(p1.handles['y_range'], p2.handles['y_range'])
def test_layout_axis_not_linked_mismatching_unit(self):
layout = (Curve([1, 2, 3], vdims=Dimension('length', unit='m')) +
Curve([1, 2, 3], vdims=Dimension('length', unit='cm')))
plot = bokeh_renderer.get_plot(layout)
p1, p2 = (sp.subplots['main'] for sp in plot.subplots.values())
self.assertIsNot(p1.handles['y_range'], p2.handles['y_range'])
def test_dimensioned_streams_with_dynamic_callback_returns_layout(self):
stream = Stream.define('aname', aname='a')()
def cb(aname):
x = np.linspace(0, 1, 10)
y = np.random.randn(10)
curve = Curve((x, y), group=aname)
hist = Histogram(y)
return (curve + hist).opts(shared_axes=False)
m = DynamicMap(cb, kdims=['aname'], streams=[stream])
p = bokeh_renderer.get_plot(m)
T = 'XYZT'
stream.event(aname=T)
self.assertIn('aname: ' + T, p.handles['title'].text, p.handles['title'].text)
p.cleanup()
self.assertEqual(stream._subscribers, [])
def test_layout_shared_axes_disabled(self):
layout = (Curve([1, 2, 3]) + Curve([10, 20, 30])).opts(shared_axes=False)
plot = bokeh_renderer.get_plot(layout)
cp1, cp2 = plot.subplots[(0, 0)].subplots['main'], plot.subplots[(0, 1)].subplots['main']
self.assertFalse(cp1.handles['y_range'] is cp2.handles['y_range'])
self.assertEqual(cp1.handles['y_range'].start, 1)
self.assertEqual(cp1.handles['y_range'].end, 3)
self.assertEqual(cp2.handles['y_range'].start, 10)
self.assertEqual(cp2.handles['y_range'].end, 30)
def test_layout_categorical_numeric_type_axes_not_linked(self):
curve1 = Curve([1, 2, 3])
curve2 = Curve([('A', 0), ('B', 1), ('C', 2)])
layout = curve1 + curve2
plot = bokeh_renderer.get_plot(layout)
cp1, cp2 = plot.subplots[(0, 0)].subplots['main'], plot.subplots[(0, 1)].subplots['main']
self.assertIsNot(cp1.handles['x_range'], cp2.handles['x_range'])
self.assertIs(cp1.handles['y_range'], cp2.handles['y_range'])
def test_layout_datetime_numeric_type_axes_not_linked(self):
curve1 = Curve([1, 2, 3])
curve2 = Curve([(dt.datetime(2020, 1, 1), 0), (dt.datetime(2020, 1, 2), 1), (dt.datetime(2020, 1, 3), 2)])
layout = curve1 + curve2
plot = bokeh_renderer.get_plot(layout)
cp1, cp2 = plot.subplots[(0, 0)].subplots['main'], plot.subplots[(0, 1)].subplots['main']
self.assertIsNot(cp1.handles['x_range'], cp2.handles['x_range'])
self.assertIs(cp1.handles['y_range'], cp2.handles['y_range'])