/
testplotutils.py
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/
testplotutils.py
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from unittest import SkipTest
from nose.plugins.attrib import attr
import numpy as np
from holoviews import NdOverlay, Overlay
from holoviews.core.spaces import DynamicMap, HoloMap
from holoviews.core.options import Store, Cycle
from holoviews.element.comparison import ComparisonTestCase
from holoviews.element import Curve, Area, Points
from holoviews.plotting.util import (
compute_overlayable_zorders, get_min_distance, process_cmap)
from holoviews.streams import PointerX
try:
from holoviews.plotting.bokeh import util
bokeh_renderer = Store.renderers['bokeh']
except:
bokeh_renderer = None
class TestOverlayableZorders(ComparisonTestCase):
def test_compute_overlayable_zorders_holomap(self):
hmap = HoloMap({0: Points([])})
sources = compute_overlayable_zorders(hmap)
self.assertEqual(sources[0], [hmap, hmap.last])
def test_compute_overlayable_zorders_with_overlaid_holomap(self):
points = Points([])
hmap = HoloMap({0: points})
curve = Curve([])
combined = hmap*curve
sources = compute_overlayable_zorders(combined)
self.assertEqual(sources[0], [points, combined.last, combined])
def test_dynamic_compute_overlayable_zorders_two_mixed_layers(self):
area = Area(range(10))
dmap = DynamicMap(lambda: Curve(range(10)), kdims=[])
combined = area*dmap
combined[()]
sources = compute_overlayable_zorders(combined)
self.assertEqual(sources[0], [area])
self.assertEqual(sources[1], [dmap])
def test_dynamic_compute_overlayable_zorders_two_mixed_layers_reverse(self):
area = Area(range(10))
dmap = DynamicMap(lambda: Curve(range(10)), kdims=[])
combined = dmap*area
combined[()]
sources = compute_overlayable_zorders(combined)
self.assertEqual(sources[0], [dmap])
self.assertEqual(sources[1], [area])
def test_dynamic_compute_overlayable_zorders_two_dynamic_layers(self):
area = DynamicMap(lambda: Area(range(10)), kdims=[])
dmap = DynamicMap(lambda: Curve(range(10)), kdims=[])
combined = area*dmap
combined[()]
sources = compute_overlayable_zorders(combined)
self.assertEqual(sources[0], [area])
self.assertEqual(sources[1], [dmap])
def test_dynamic_compute_overlayable_zorders_two_deep_dynamic_layers(self):
area = DynamicMap(lambda: Area(range(10)), kdims=[])
curve = DynamicMap(lambda: Curve(range(10)), kdims=[])
area_redim = area.redim(x='x2')
curve_redim = curve.redim(x='x2')
combined = area_redim*curve_redim
combined[()]
sources = compute_overlayable_zorders(combined)
self.assertIn(area_redim, sources[0])
self.assertIn(area, sources[0])
self.assertNotIn(curve_redim, sources[0])
self.assertNotIn(curve, sources[0])
self.assertIn(curve_redim, sources[1])
self.assertIn(curve, sources[1])
self.assertNotIn(area_redim, sources[1])
self.assertNotIn(area, sources[1])
def test_dynamic_compute_overlayable_zorders_three_deep_dynamic_layers(self):
area = DynamicMap(lambda: Area(range(10)), kdims=[])
curve = DynamicMap(lambda: Curve(range(10)), kdims=[])
curve2 = DynamicMap(lambda: Curve(range(10)), kdims=[])
area_redim = area.redim(x='x2')
curve_redim = curve.redim(x='x2')
curve2_redim = curve2.redim(x='x3')
combined = area_redim*curve_redim
combined1 = (combined*curve2_redim)
combined1[()]
sources = compute_overlayable_zorders(combined1)
self.assertIn(area_redim, sources[0])
self.assertIn(area, sources[0])
self.assertNotIn(curve_redim, sources[0])
self.assertNotIn(curve, sources[0])
self.assertNotIn(curve2_redim, sources[0])
self.assertNotIn(curve2, sources[0])
self.assertIn(curve_redim, sources[1])
self.assertIn(curve, sources[1])
self.assertNotIn(area_redim, sources[1])
self.assertNotIn(area, sources[1])
self.assertNotIn(curve2_redim, sources[1])
self.assertNotIn(curve2, sources[1])
self.assertIn(curve2_redim, sources[2])
self.assertIn(curve2, sources[2])
self.assertNotIn(area_redim, sources[2])
self.assertNotIn(area, sources[2])
self.assertNotIn(curve_redim, sources[2])
self.assertNotIn(curve, sources[2])
def test_dynamic_compute_overlayable_zorders_three_deep_dynamic_layers_cloned(self):
area = DynamicMap(lambda: Area(range(10)), kdims=[])
curve = DynamicMap(lambda: Curve(range(10)), kdims=[])
curve2 = DynamicMap(lambda: Curve(range(10)), kdims=[])
area_redim = area.redim(x='x2')
curve_redim = curve.redim(x='x2')
curve2_redim = curve2.redim(x='x3')
combined = area_redim*curve_redim
combined1 = (combined*curve2_redim).redim(y='y2')
combined1[()]
sources = compute_overlayable_zorders(combined1)
self.assertIn(area_redim, sources[0])
self.assertIn(area, sources[0])
self.assertNotIn(curve_redim, sources[0])
self.assertNotIn(curve, sources[0])
self.assertNotIn(curve2_redim, sources[0])
self.assertNotIn(curve2, sources[0])
self.assertIn(curve_redim, sources[1])
self.assertIn(curve, sources[1])
self.assertNotIn(area_redim, sources[1])
self.assertNotIn(area, sources[1])
self.assertNotIn(curve2_redim, sources[1])
self.assertNotIn(curve2, sources[1])
self.assertIn(curve2_redim, sources[2])
self.assertIn(curve2, sources[2])
self.assertNotIn(area_redim, sources[2])
self.assertNotIn(area, sources[2])
self.assertNotIn(curve_redim, sources[2])
self.assertNotIn(curve, sources[2])
def test_dynamic_compute_overlayable_zorders_mixed_dynamic_and_non_dynamic_overlays_reverse(self):
area1 = Area(range(10))
area2 = Area(range(10))
overlay = area1 * area2
curve = DynamicMap(lambda: Curve(range(10)), kdims=[])
curve_redim = curve.redim(x='x2')
combined = curve_redim*overlay
combined[()]
sources = compute_overlayable_zorders(combined)
self.assertIn(curve_redim, sources[0])
self.assertIn(curve, sources[0])
self.assertNotIn(overlay, sources[0])
self.assertIn(area1, sources[1])
self.assertIn(overlay, sources[1])
self.assertNotIn(curve_redim, sources[1])
self.assertNotIn(curve, sources[1])
self.assertIn(area2, sources[2])
self.assertIn(overlay, sources[2])
self.assertNotIn(curve_redim, sources[2])
self.assertNotIn(curve, sources[2])
def test_dynamic_compute_overlayable_zorders_mixed_dynamic_and_non_dynamic_ndoverlays(self):
ndoverlay = NdOverlay({i: Area(range(10+i)) for i in range(2)})
curve = DynamicMap(lambda: Curve(range(10)), kdims=[])
curve_redim = curve.redim(x='x2')
combined = ndoverlay*curve_redim
combined[()]
sources = compute_overlayable_zorders(combined)
self.assertIn(ndoverlay[0], sources[0])
self.assertIn(ndoverlay, sources[0])
self.assertNotIn(curve_redim, sources[0])
self.assertNotIn(curve, sources[0])
self.assertIn(ndoverlay[1], sources[1])
self.assertIn(ndoverlay, sources[1])
self.assertNotIn(curve_redim, sources[1])
self.assertNotIn(curve, sources[1])
self.assertIn(curve_redim, sources[2])
self.assertIn(curve, sources[2])
self.assertNotIn(ndoverlay, sources[2])
def test_dynamic_compute_overlayable_zorders_mixed_dynamic_and_dynamic_ndoverlay_with_streams(self):
ndoverlay = DynamicMap(lambda x: NdOverlay({i: Area(range(10+i)) for i in range(2)}),
kdims=[], streams=[PointerX()])
curve = DynamicMap(lambda: Curve(range(10)), kdims=[])
curve_redim = curve.redim(x='x2')
combined = ndoverlay*curve_redim
combined[()]
sources = compute_overlayable_zorders(combined)
self.assertIn(ndoverlay, sources[0])
self.assertNotIn(curve_redim, sources[0])
self.assertNotIn(curve, sources[0])
self.assertIn(ndoverlay, sources[1])
self.assertNotIn(curve_redim, sources[1])
self.assertNotIn(curve, sources[1])
self.assertIn(curve_redim, sources[2])
self.assertIn(curve, sources[2])
self.assertNotIn(ndoverlay, sources[2])
def test_dynamic_compute_overlayable_zorders_mixed_dynamic_and_dynamic_ndoverlay_with_streams_cloned(self):
ndoverlay = DynamicMap(lambda x: NdOverlay({i: Area(range(10+i)) for i in range(2)}),
kdims=[], streams=[PointerX()])
curve = DynamicMap(lambda: Curve(range(10)), kdims=[])
curve_redim = curve.redim(x='x2')
combined = ndoverlay*curve_redim
combined[()]
sources = compute_overlayable_zorders(combined.clone())
self.assertIn(ndoverlay, sources[0])
self.assertNotIn(curve_redim, sources[0])
self.assertNotIn(curve, sources[0])
self.assertIn(ndoverlay, sources[1])
self.assertNotIn(curve_redim, sources[1])
self.assertNotIn(curve, sources[1])
self.assertIn(curve_redim, sources[2])
self.assertIn(curve, sources[2])
self.assertNotIn(ndoverlay, sources[2])
def test_dynamic_compute_overlayable_zorders_mixed_dynamic_and_non_dynamic_ndoverlays_reverse(self):
ndoverlay = NdOverlay({i: Area(range(10+i)) for i in range(2)})
curve = DynamicMap(lambda: Curve(range(10)), kdims=[])
curve_redim = curve.redim(x='x2')
combined = curve_redim*ndoverlay
combined[()]
sources = compute_overlayable_zorders(combined)
self.assertIn(curve_redim, sources[0])
self.assertIn(curve, sources[0])
self.assertNotIn(ndoverlay, sources[0])
self.assertIn(ndoverlay[0], sources[1])
self.assertIn(ndoverlay, sources[1])
self.assertNotIn(curve_redim, sources[1])
self.assertNotIn(curve, sources[1])
self.assertIn(ndoverlay[1], sources[2])
self.assertIn(ndoverlay, sources[2])
self.assertNotIn(curve_redim, sources[2])
self.assertNotIn(curve, sources[2])
def test_dynamic_compute_overlayable_zorders_three_deep_dynamic_layers_reduced(self):
area = DynamicMap(lambda: Area(range(10)), kdims=[])
curve = DynamicMap(lambda: Curve(range(10)), kdims=[])
curve2 = DynamicMap(lambda: Curve(range(10)), kdims=[])
area_redim = area.redim(x='x2')
curve_redim = curve.redim(x='x2')
curve2_redim = curve2.redim(x='x3')
combined = (area_redim*curve_redim).map(lambda x: x.get(0), Overlay)
combined1 = combined*curve2_redim
combined1[()]
sources = compute_overlayable_zorders(combined1)
self.assertIn(curve_redim, sources[0])
self.assertIn(curve, sources[0])
self.assertIn(area_redim, sources[0])
self.assertIn(area, sources[0])
self.assertNotIn(curve2_redim, sources[0])
self.assertNotIn(curve2, sources[0])
self.assertIn(curve2_redim, sources[1])
self.assertIn(curve2, sources[1])
self.assertNotIn(area_redim, sources[1])
self.assertNotIn(area, sources[1])
self.assertNotIn(curve_redim, sources[1])
self.assertNotIn(curve, sources[1])
def test_dynamic_compute_overlayable_zorders_three_deep_dynamic_layers_reduced_layers_by_one(self):
area = DynamicMap(lambda: Area(range(10)), kdims=[])
area2 = DynamicMap(lambda: Area(range(10)), kdims=[])
curve = DynamicMap(lambda: Curve(range(10)), kdims=[])
curve2 = DynamicMap(lambda: Curve(range(10)), kdims=[])
area_redim = area.redim(x='x2')
curve_redim = curve.redim(x='x2')
curve2_redim = curve2.redim(x='x3')
combined = (area_redim*curve_redim*area2).map(lambda x: x.clone(x.items()[:2]), Overlay)
combined1 = combined*curve2_redim
combined1[()]
sources = compute_overlayable_zorders(combined1)
self.assertNotIn(curve_redim, sources[0])
self.assertNotIn(curve, sources[0])
self.assertNotIn(curve2_redim, sources[0])
self.assertNotIn(curve2, sources[0])
self.assertNotIn(area, sources[0])
self.assertNotIn(area_redim, sources[0])
self.assertNotIn(area2, sources[0])
self.assertNotIn(area_redim, sources[1])
self.assertNotIn(area, sources[1])
self.assertNotIn(curve2_redim, sources[1])
self.assertNotIn(curve2, sources[1])
self.assertNotIn(area2, sources[0])
self.assertIn(curve2_redim, sources[2])
self.assertIn(curve2, sources[2])
self.assertNotIn(area_redim, sources[2])
self.assertNotIn(area, sources[2])
self.assertNotIn(area2, sources[0])
self.assertNotIn(curve_redim, sources[2])
self.assertNotIn(curve, sources[2])
class TestPlotColorUtils(ComparisonTestCase):
def test_process_cmap_mpl(self):
colors = process_cmap('Greys', 3)
self.assertEqual(colors, ['#ffffff', '#959595', '#000000'])
def test_process_cmap_instance_mpl(self):
try:
from matplotlib.cm import get_cmap
except:
raise SkipError("Matplotlib needed to test matplotlib colormap instances")
cmap = get_cmap('Greys')
colors = process_cmap(cmap, 3)
self.assertEqual(colors, ['#ffffff', '#959595', '#000000'])
def test_process_cmap_bokeh(self):
colors = process_cmap('Category20', 3)
self.assertEqual(colors, ['#1f77b4', '#aec7e8', '#ff7f0e'])
def test_process_cmap_list_cycle(self):
colors = process_cmap(['#ffffff', '#959595', '#000000'], 4)
self.assertEqual(colors, ['#ffffff', '#959595', '#000000', '#ffffff'])
def test_process_cmap_cycle(self):
colors = process_cmap(Cycle(values=['#ffffff', '#959595', '#000000']), 4)
self.assertEqual(colors, ['#ffffff', '#959595', '#000000', '#ffffff'])
def test_process_cmap_invalid_str(self):
with self.assertRaises(ValueError):
colors = process_cmap('NonexistentColorMap', 3)
def test_process_cmap_invalid_type(self):
with self.assertRaises(TypeError):
colors = process_cmap({'A', 'B', 'C'}, 3)
class TestPlotUtils(ComparisonTestCase):
def test_get_min_distance_float32_type(self):
xs, ys = (np.arange(0, 2., .2, dtype='float32'),
np.arange(0, 2., .2, dtype='float32'))
X, Y = np.meshgrid(xs, ys)
dist = get_min_distance(Points((X.flatten(), Y.flatten())))
self.assertEqual(round(dist, 5), 0.2)
def test_get_min_distance_int32_type(self):
xs, ys = (np.arange(0, 10, dtype='int32'),
np.arange(0, 10, dtype='int32'))
X, Y = np.meshgrid(xs, ys)
dist = get_min_distance(Points((X.flatten(), Y.flatten())))
self.assertEqual(dist, 1.0)
@attr(optional=1) # Flexx is optional
class TestBokehUtils(ComparisonTestCase):
def setUp(self):
if not bokeh_renderer:
raise SkipTest("Bokeh required to test bokeh plot utils.")
def test_py2js_funcformatter_single_arg(self):
def test(x): return '%s$' % x
jsfunc = util.py2js_tickformatter(test)
js_func = ('var x = tick;\nvar formatter;\nformatter = function () {\n'
' return "" + x + "$";\n};\n\nreturn formatter();\n')
self.assertEqual(jsfunc, js_func)
def test_py2js_funcformatter_two_args(self):
def test(x, pos): return '%s$' % x
jsfunc = util.py2js_tickformatter(test)
js_func = ('var x = tick;\nvar formatter;\nformatter = function () {\n'
' return "" + x + "$";\n};\n\nreturn formatter();\n')
self.assertEqual(jsfunc, js_func)
def test_py2js_funcformatter_arg_and_kwarg(self):
def test(x, pos=None): return '%s$' % x
jsfunc = util.py2js_tickformatter(test)
js_func = ('var x = tick;\nvar formatter;\nformatter = function () {\n'
' pos = (pos === undefined) ? null: pos;\n return "" '
'+ x + "$";\n};\n\nreturn formatter();\n')
self.assertEqual(jsfunc, js_func)