import numpy as np from holoviews.core.dimension import Dimension from holoviews.core.options import Cycle from holoviews.core.spaces import HoloMap from holoviews.element import Labels from holoviews.plotting.util import rgb2hex from .test_plot import TestMPLPlot, mpl_renderer class TestLabelsPlot(TestMPLPlot): def test_labels_simple(self): labels = Labels([(0, 1, 'A'), (1, 0, 'B')]) plot = mpl_renderer.get_plot(labels) artist = plot.handles['artist'] expected = {'x': np.array([0, 1]), 'y': np.array([1, 0]), 'Label': ['A', 'B']} for i, text in enumerate(artist): self.assertEqual(text._x, expected['x'][i]) self.assertEqual(text._y, expected['y'][i]) self.assertEqual(text.get_text(), expected['Label'][i]) def test_labels_empty(self): labels = Labels([]) plot = mpl_renderer.get_plot(labels) artist = plot.handles['artist'] self.assertEqual(artist, []) def test_labels_formatter(self): vdim = Dimension('text', value_format=lambda x: f'{x:.1f}') labels = Labels([(0, 1, 0.33333), (1, 0, 0.66666)], vdims=vdim) plot = mpl_renderer.get_plot(labels) artist = plot.handles['artist'] expected = {'x': np.array([0, 1]), 'y': np.array([1, 0]), 'text': ['0.3', '0.7']} for i, text in enumerate(artist): self.assertEqual(text._x, expected['x'][i]) self.assertEqual(text._y, expected['y'][i]) self.assertEqual(text.get_text(), expected['text'][i]) def test_labels_inverted(self): labels = Labels([(0, 1, 'A'), (1, 0, 'B')]).opts(invert_axes=True) plot = mpl_renderer.get_plot(labels) artist = plot.handles['artist'] expected = {'x': np.array([0, 1]), 'y': np.array([1, 0]), 'Label': ['A', 'B']} for i, text in enumerate(artist): self.assertEqual(text._x, expected['y'][i]) self.assertEqual(text._y, expected['x'][i]) self.assertEqual(text.get_text(), expected['Label'][i]) def test_labels_color_mapped(self): labels = Labels([(0, 1, 0.33333), (1, 0, 0.66666)]).opts(color_index=2) plot = mpl_renderer.get_plot(labels) artist = plot.handles['artist'] expected = {'x': np.array([0, 1]), 'y': np.array([1, 0]), 'Label': ['0.33333', '0.66666']} colors = [(0.26666666666666666, 0.0039215686274509803, 0.32941176470588235, 1.0), (0.99215686274509807, 0.90588235294117647, 0.14117647058823529, 1.0)] for i, text in enumerate(artist): self.assertEqual(text._x, expected['x'][i]) self.assertEqual(text._y, expected['y'][i]) self.assertEqual(text.get_text(), expected['Label'][i]) self.assertEqual(text.get_color(), colors[i]) ########################### # Styling mapping # ########################### def test_label_color_op(self): labels = Labels([(0, 0, '#000000'), (0, 1, '#FF0000'), (0, 2, '#00FF00')], vdims='color').opts(color='color') plot = mpl_renderer.get_plot(labels) artist = plot.handles['artist'] self.assertEqual([a.get_color() for a in artist], ['#000000', '#FF0000', '#00FF00']) def test_label_color_op_update(self): labels = HoloMap({ 0: Labels([(0, 0, '#000000'), (0, 1, '#FF0000'), (0, 2, '#00FF00')], vdims='color'), 1: Labels([(0, 0, '#FF0000'), (0, 1, '#00FF00'), (0, 2, '#0000FF')], vdims='color')}).opts(color='color') plot = mpl_renderer.get_plot(labels) artist = plot.handles['artist'] self.assertEqual([a.get_color() for a in artist], ['#000000', '#FF0000', '#00FF00']) plot.update((1,)) artist = plot.handles['artist'] self.assertEqual([a.get_color() for a in artist], ['#FF0000', '#00FF00', '#0000FF']) def test_label_linear_color_op(self): labels = Labels([(0, 0, 0), (0, 1, 1), (0, 2, 2)], vdims='color').opts(color='color') plot = mpl_renderer.get_plot(labels) artist = plot.handles['artist'] self.assertEqual([rgb2hex(a.get_color()) for a in artist], ['#440154', '#20908c', '#fde724']) def test_label_categorical_color_op(self): labels = Labels([(0, 0, 'A'), (0, 1, 'B'), (0, 2, 'A')], vdims='color').opts(color='color', cmap='tab10') plot = mpl_renderer.get_plot(labels) artist = plot.handles['artist'] self.assertEqual([rgb2hex(a.get_color()) for a in artist], ['#1f77b4', '#ff7f0e', '#1f77b4']) def test_label_size_op(self): labels = Labels([(0, 0, 8), (0, 1, 12), (0, 2, 6)], vdims='size').opts(size='size') plot = mpl_renderer.get_plot(labels) artist = plot.handles['artist'] self.assertEqual([a.get_fontsize() for a in artist], [8, 12, 6]) def test_label_size_op_update(self): labels = HoloMap({ 0: Labels([(0, 0, 8), (0, 1, 6), (0, 2, 12)], vdims='size'), 1: Labels([(0, 0, 9), (0, 1, 4), (0, 2, 3)], vdims='size')}).opts(size='size') plot = mpl_renderer.get_plot(labels) artist = plot.handles['artist'] self.assertEqual([a.get_fontsize() for a in artist], [8, 6, 12]) plot.update((1,)) artist = plot.handles['artist'] self.assertEqual([a.get_fontsize() for a in artist], [9, 4, 3]) def test_label_alpha_op(self): labels = Labels([(0, 0, 0), (0, 1, 0.2), (0, 2, 0.7)], vdims='alpha').opts(alpha='alpha') plot = mpl_renderer.get_plot(labels) artist = plot.handles['artist'] self.assertEqual([a.get_alpha() for a in artist], [0, 0.2, 0.7]) def test_label_alpha_op_update(self): labels = HoloMap({ 0: Labels([(0, 0, 0.3), (0, 1, 1), (0, 2, 0.6)], vdims='alpha'), 1: Labels([(0, 0, 0.6), (0, 1, 0.1), (0, 2, 1)], vdims='alpha')}).opts(alpha='alpha') plot = mpl_renderer.get_plot(labels) artist = plot.handles['artist'] self.assertEqual([a.get_alpha() for a in artist], [0.3, 1, 0.6]) plot.update((1,)) artist = plot.handles['artist'] self.assertEqual([a.get_alpha() for a in artist], [0.6, 0.1, 1]) def test_label_rotation_op(self): labels = Labels([(0, 0, 90), (0, 1, 180), (0, 2, 270)], vdims='rotation').opts(rotation='rotation') plot = mpl_renderer.get_plot(labels) artist = plot.handles['artist'] self.assertEqual([a.get_rotation() for a in artist], [90, 180, 270]) def test_label_rotation_op_update(self): labels = HoloMap({ 0: Labels([(0, 0, 45), (0, 1, 180), (0, 2, 90)], vdims='rotation'), 1: Labels([(0, 0, 30), (0, 1, 120), (0, 2, 60)], vdims='rotation')}).opts(rotation='rotation') plot = mpl_renderer.get_plot(labels) artist = plot.handles['artist'] self.assertEqual([a.get_rotation() for a in artist], [45, 180, 90]) plot.update((1,)) artist = plot.handles['artist'] self.assertEqual([a.get_rotation() for a in artist], [30, 120, 60]) def test_labels_text_color_cycle(self): hm = HoloMap( {i: Labels([ (0, 0 + i, "Label 1"), (1, 1 + i, "Label 2") ]) for i in range(3)} ).overlay() assert isinstance(hm[0].opts["color"], Cycle)