Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/networkx/drawing/tests/test_pylab.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 """Unit tests for matplotlib drawing functions.""" |
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2 import os |
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3 import itertools |
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4 import pytest |
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5 |
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6 mpl = pytest.importorskip("matplotlib") |
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7 mpl.use("PS") |
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8 plt = pytest.importorskip("matplotlib.pyplot") |
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9 plt.rcParams["text.usetex"] = False |
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10 |
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11 import networkx as nx |
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12 |
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13 |
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14 class TestPylab: |
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15 @classmethod |
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16 def setup_class(cls): |
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17 cls.G = nx.barbell_graph(4, 6) |
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18 |
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19 def test_draw(self): |
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20 try: |
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21 functions = [ |
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22 nx.draw_circular, |
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23 nx.draw_kamada_kawai, |
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24 nx.draw_planar, |
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25 nx.draw_random, |
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26 nx.draw_spectral, |
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27 nx.draw_spring, |
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28 nx.draw_shell, |
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29 ] |
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30 options = [{"node_color": "black", "node_size": 100, "width": 3}] |
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31 for function, option in itertools.product(functions, options): |
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32 function(self.G, **option) |
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33 plt.savefig("test.ps") |
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34 |
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35 finally: |
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36 try: |
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37 os.unlink("test.ps") |
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38 except OSError: |
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39 pass |
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40 |
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41 def test_draw_shell_nlist(self): |
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42 try: |
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43 nlist = [list(range(4)), list(range(4, 10)), list(range(10, 14))] |
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44 nx.draw_shell(self.G, nlist=nlist) |
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45 plt.savefig("test.ps") |
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46 finally: |
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47 try: |
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48 os.unlink("test.ps") |
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49 except OSError: |
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50 pass |
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51 |
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52 def test_edge_colormap(self): |
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53 colors = range(self.G.number_of_edges()) |
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54 nx.draw_spring( |
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55 self.G, edge_color=colors, width=4, edge_cmap=plt.cm.Blues, with_labels=True |
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56 ) |
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57 # plt.show() |
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58 |
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59 def test_arrows(self): |
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60 nx.draw_spring(self.G.to_directed()) |
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61 # plt.show() |
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62 |
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63 def test_edge_colors_and_widths(self): |
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64 pos = nx.circular_layout(self.G) |
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65 for G in (self.G, self.G.to_directed()): |
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66 nx.draw_networkx_nodes(G, pos, node_color=[(1.0, 1.0, 0.2, 0.5)]) |
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67 nx.draw_networkx_labels(G, pos) |
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68 # edge with default color and width |
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69 nx.draw_networkx_edges( |
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70 G, pos, edgelist=[(0, 1)], width=None, edge_color=None |
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71 ) |
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72 # edges with global color strings and widths in lists |
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73 nx.draw_networkx_edges( |
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74 G, pos, edgelist=[(0, 2), (0, 3)], width=[3], edge_color=["r"] |
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75 ) |
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76 # edges with color strings and widths for each edge |
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77 nx.draw_networkx_edges( |
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78 G, pos, edgelist=[(0, 2), (0, 3)], width=[1, 3], edge_color=["r", "b"] |
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79 ) |
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80 # edges with fewer color strings and widths than edges |
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81 nx.draw_networkx_edges( |
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82 G, |
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83 pos, |
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84 edgelist=[(1, 2), (1, 3), (2, 3), (3, 4)], |
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85 width=[1, 3], |
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86 edge_color=["g", "m", "c"], |
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87 ) |
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88 # edges with more color strings and widths than edges |
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89 nx.draw_networkx_edges( |
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90 G, |
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91 pos, |
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92 edgelist=[(3, 4)], |
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93 width=[1, 2, 3, 4], |
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94 edge_color=["r", "b", "g", "k"], |
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95 ) |
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96 # with rgb tuple and 3 edges - is interpreted with cmap |
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97 nx.draw_networkx_edges( |
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98 G, pos, edgelist=[(4, 5), (5, 6), (6, 7)], edge_color=(1.0, 0.4, 0.3) |
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99 ) |
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100 # with rgb tuple in list |
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101 nx.draw_networkx_edges( |
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102 G, pos, edgelist=[(7, 8), (8, 9)], edge_color=[(0.4, 1.0, 0.0)] |
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103 ) |
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104 # with rgba tuple and 4 edges - is interpretted with cmap |
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105 nx.draw_networkx_edges( |
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106 G, |
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107 pos, |
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108 edgelist=[(9, 10), (10, 11), (10, 12), (10, 13)], |
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109 edge_color=(0.0, 1.0, 1.0, 0.5), |
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110 ) |
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111 # with rgba tuple in list |
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112 nx.draw_networkx_edges( |
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113 G, |
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114 pos, |
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115 edgelist=[(9, 10), (10, 11), (10, 12), (10, 13)], |
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116 edge_color=[(0.0, 1.0, 1.0, 0.5)], |
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117 ) |
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118 # with color string and global alpha |
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119 nx.draw_networkx_edges( |
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120 G, pos, edgelist=[(11, 12), (11, 13)], edge_color="purple", alpha=0.2 |
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121 ) |
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122 # with color string in a list |
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123 nx.draw_networkx_edges( |
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124 G, pos, edgelist=[(11, 12), (11, 13)], edge_color=["purple"] |
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125 ) |
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126 # with single edge and hex color string |
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127 nx.draw_networkx_edges(G, pos, edgelist=[(12, 13)], edge_color="#1f78b4f0") |
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128 |
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129 # edge_color as numeric using vmin, vmax |
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130 nx.draw_networkx_edges( |
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131 G, |
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132 pos, |
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133 edgelist=[(7, 8), (8, 9)], |
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134 edge_color=[0.2, 0.5], |
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135 edge_vmin=0.1, |
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136 edge_vmax=0.6, |
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137 ) |
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138 |
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139 # plt.show() |
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140 |
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141 def test_labels_and_colors(self): |
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142 G = nx.cubical_graph() |
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143 pos = nx.spring_layout(G) # positions for all nodes |
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144 # nodes |
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145 nx.draw_networkx_nodes( |
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146 G, pos, nodelist=[0, 1, 2, 3], node_color="r", node_size=500, alpha=0.75 |
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147 ) |
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148 nx.draw_networkx_nodes( |
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149 G, |
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150 pos, |
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151 nodelist=[4, 5, 6, 7], |
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152 node_color="b", |
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153 node_size=500, |
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154 alpha=[0.25, 0.5, 0.75, 1.0], |
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155 ) |
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156 # edges |
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157 nx.draw_networkx_edges(G, pos, width=1.0, alpha=0.5) |
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158 nx.draw_networkx_edges( |
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159 G, |
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160 pos, |
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161 edgelist=[(0, 1), (1, 2), (2, 3), (3, 0)], |
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162 width=8, |
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163 alpha=0.5, |
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164 edge_color="r", |
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165 ) |
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166 nx.draw_networkx_edges( |
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167 G, |
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168 pos, |
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169 edgelist=[(4, 5), (5, 6), (6, 7), (7, 4)], |
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170 width=8, |
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171 alpha=0.5, |
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172 edge_color="b", |
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173 ) |
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174 nx.draw_networkx_edges( |
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175 G, |
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176 pos, |
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177 edgelist=[(4, 5), (5, 6), (6, 7), (7, 4)], |
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178 min_source_margin=0.5, |
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179 min_target_margin=0.75, |
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180 width=8, |
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181 edge_color="b", |
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182 ) |
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183 # some math labels |
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184 labels = {} |
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185 labels[0] = r"$a$" |
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186 labels[1] = r"$b$" |
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187 labels[2] = r"$c$" |
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188 labels[3] = r"$d$" |
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189 labels[4] = r"$\alpha$" |
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190 labels[5] = r"$\beta$" |
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191 labels[6] = r"$\gamma$" |
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192 labels[7] = r"$\delta$" |
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193 nx.draw_networkx_labels(G, pos, labels, font_size=16) |
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194 nx.draw_networkx_edge_labels(G, pos, edge_labels=None, rotate=False) |
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195 nx.draw_networkx_edge_labels(G, pos, edge_labels={(4, 5): "4-5"}) |
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196 # plt.show() |
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197 |
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198 def test_axes(self): |
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199 fig, ax = plt.subplots() |
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200 nx.draw(self.G, ax=ax) |
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201 |
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202 def test_empty_graph(self): |
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203 G = nx.Graph() |
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204 nx.draw(G) |
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205 |
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206 def test_draw_empty_nodes_return_values(self): |
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207 # See Issue #3833 |
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208 from matplotlib.collections import PathCollection, LineCollection |
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209 |
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210 G = nx.Graph([(1, 2), (2, 3)]) |
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211 DG = nx.DiGraph([(1, 2), (2, 3)]) |
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212 pos = nx.circular_layout(G) |
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213 assert isinstance(nx.draw_networkx_nodes(G, pos, nodelist=[]), PathCollection) |
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214 assert isinstance(nx.draw_networkx_nodes(DG, pos, nodelist=[]), PathCollection) |
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215 |
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216 # drawing empty edges either return an empty LineCollection or empty list. |
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217 assert isinstance( |
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218 nx.draw_networkx_edges(G, pos, edgelist=[], arrows=True), LineCollection |
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219 ) |
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220 assert isinstance( |
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221 nx.draw_networkx_edges(G, pos, edgelist=[], arrows=False), LineCollection |
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222 ) |
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223 assert isinstance( |
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224 nx.draw_networkx_edges(DG, pos, edgelist=[], arrows=False), LineCollection |
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225 ) |
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226 assert nx.draw_networkx_edges(DG, pos, edgelist=[], arrows=True) == [] |
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227 |
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228 def test_multigraph_edgelist_tuples(self): |
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229 # See Issue #3295 |
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230 G = nx.path_graph(3, create_using=nx.MultiDiGraph) |
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231 nx.draw_networkx(G, edgelist=[(0, 1, 0)]) |
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232 nx.draw_networkx(G, edgelist=[(0, 1, 0)], node_size=[10, 20, 0]) |
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233 |
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234 def test_alpha_iter(self): |
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235 pos = nx.random_layout(self.G) |
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236 # with fewer alpha elements than nodes |
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237 plt.subplot(131) |
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238 nx.draw_networkx_nodes(self.G, pos, alpha=[0.1, 0.2]) |
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239 # with equal alpha elements and nodes |
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240 num_nodes = len(self.G.nodes) |
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241 alpha = [x / num_nodes for x in range(num_nodes)] |
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242 colors = range(num_nodes) |
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243 plt.subplot(132) |
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244 nx.draw_networkx_nodes(self.G, pos, node_color=colors, alpha=alpha) |
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245 # with more alpha elements than nodes |
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246 alpha.append(1) |
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247 plt.subplot(133) |
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248 nx.draw_networkx_nodes(self.G, pos, alpha=alpha) |
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249 |
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250 def test_error_invalid_kwds(self): |
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251 with pytest.raises(ValueError, match="Received invalid argument"): |
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252 nx.draw(self.G, foo="bar") |
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253 |
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254 def test_np_edgelist(self): |
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255 # see issue #4129 |
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256 np = pytest.importorskip("numpy") |
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257 nx.draw_networkx(self.G, edgelist=np.array([(0, 2), (0, 3)])) |