| 1 | """ |
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| 2 | ASAP plotting class based on matplotlib. |
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| 3 | """ |
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| 4 | |
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| 5 | import sys |
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| 6 | from re import match |
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| 7 | |
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| 8 | import matplotlib |
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| 9 | |
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| 10 | from matplotlib.figure import Figure, Text |
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| 11 | from matplotlib.font_manager import FontProperties |
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| 12 | from matplotlib.numerix import sqrt |
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| 13 | from matplotlib import rc, rcParams |
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| 14 | |
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| 15 | class asaplotbase: |
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| 16 | """ |
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| 17 | ASAP plotting base class based on matplotlib. |
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| 18 | """ |
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| 19 | |
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| 20 | def __init__(self, rows=1, cols=0, title='', size=(8,6), buffering=False): |
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| 21 | """ |
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| 22 | Create a new instance of the ASAPlot plotting class. |
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| 23 | |
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| 24 | If rows < 1 then a separate call to set_panels() is required to define |
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| 25 | the panel layout; refer to the doctext for set_panels(). |
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| 26 | """ |
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| 27 | self.is_dead = False |
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| 28 | self.figure = Figure(figsize=size, facecolor='#ddddee') |
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| 29 | self.canvas = None |
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| 30 | |
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| 31 | self.set_title(title) |
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| 32 | self.subplots = [] |
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| 33 | if rows > 0: |
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| 34 | self.set_panels(rows, cols) |
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| 35 | |
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| 36 | # Set matplotlib default colour sequence. |
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| 37 | self.colormap = ['blue', 'green', 'red', 'cyan', 'magenta', 'yellow', 'black', 'purple', 'orange', 'pink'] |
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| 38 | self.color = 0; |
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| 39 | self.attributes = {} |
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| 40 | self.loc = 0 |
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| 41 | |
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| 42 | self.buffering = buffering |
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| 43 | |
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| 44 | def clear(self): |
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| 45 | """ |
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| 46 | Delete all lines from the plot. Line numbering will restart from 1. |
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| 47 | """ |
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| 48 | |
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| 49 | for i in range(len(self.lines)): |
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| 50 | self.delete(i) |
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| 51 | self.axes.clear() |
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| 52 | self.color = 0 |
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| 53 | self.lines = [] |
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| 54 | |
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| 55 | |
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| 56 | def palette(self, color, colormap=None): |
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| 57 | if colormap: |
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| 58 | self.colormap = colormap |
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| 59 | if 0 <= color < len(self.colormap): |
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| 60 | self.color = color |
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| 61 | |
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| 62 | def delete(self, numbers=None): |
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| 63 | """ |
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| 64 | Delete the 0-relative line number, default is to delete the last. |
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| 65 | The remaining lines are NOT renumbered. |
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| 66 | """ |
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| 67 | |
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| 68 | if numbers is None: numbers = [len(self.lines)-1] |
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| 69 | |
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| 70 | if not hasattr(numbers, '__iter__'): |
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| 71 | numbers = [numbers] |
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| 72 | |
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| 73 | for number in numbers: |
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| 74 | if 0 <= number < len(self.lines): |
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| 75 | if self.lines[number] is not None: |
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| 76 | for line in self.lines[number]: |
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| 77 | line.set_linestyle('None') |
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| 78 | self.lines[number] = None |
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| 79 | self.show() |
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| 80 | |
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| 81 | def get_line(self): |
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| 82 | """ |
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| 83 | Get the current default line attributes. |
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| 84 | """ |
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| 85 | return self.attributes |
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| 86 | |
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| 87 | |
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| 88 | def hist(self, x=None, y=None, fmt=None): |
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| 89 | """ |
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| 90 | Plot a histogram. N.B. the x values refer to the start of the |
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| 91 | histogram bin. |
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| 92 | |
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| 93 | fmt is the line style as in plot(). |
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| 94 | """ |
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| 95 | |
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| 96 | if x is None: |
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| 97 | if y is None: return |
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| 98 | x = range(0,len(y)) |
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| 99 | |
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| 100 | if len(x) != len(y): |
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| 101 | return |
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| 102 | |
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| 103 | l2 = 2*len(x) |
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| 104 | x2 = range(0,l2) |
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| 105 | y2 = range(0,l2) |
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| 106 | |
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| 107 | for i in range(0,l2): |
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| 108 | x2[i] = x[i/2] |
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| 109 | |
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| 110 | y2[0] = 0 |
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| 111 | for i in range(1,l2): |
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| 112 | y2[i] = y[(i-1)/2] |
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| 113 | |
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| 114 | self.plot(x2, y2, fmt) |
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| 115 | |
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| 116 | |
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| 117 | def hold(self, hold=True): |
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| 118 | """ |
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| 119 | Buffer graphics until subsequently released. |
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| 120 | """ |
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| 121 | self.buffering = hold |
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| 122 | |
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| 123 | |
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| 124 | def legend(self, loc=None): |
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| 125 | """ |
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| 126 | Add a legend to the plot. |
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| 127 | |
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| 128 | Any other value for loc else disables the legend: |
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| 129 | 1: upper right |
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| 130 | 2: upper left |
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| 131 | 3: lower left |
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| 132 | 4: lower right |
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| 133 | 5: right |
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| 134 | 6: center left |
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| 135 | 7: center right |
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| 136 | 8: lower center |
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| 137 | 9: upper center |
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| 138 | 10: center |
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| 139 | |
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| 140 | """ |
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| 141 | if isinstance(loc,int): |
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| 142 | if 0 > loc > 10: loc = 0 |
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| 143 | self.loc = loc |
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| 144 | self.show() |
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| 145 | |
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| 146 | |
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| 147 | def plot(self, x=None, y=None, mask=None, fmt=None, add=None): |
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| 148 | """ |
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| 149 | Plot the next line in the current frame using the current line |
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| 150 | attributes. The ASAPlot graphics window will be mapped and raised. |
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| 151 | |
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| 152 | The argument list works a bit like the matlab plot() function. |
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| 153 | """ |
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| 154 | |
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| 155 | if x is None: |
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| 156 | if y is None: return |
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| 157 | x = range(len(y)) |
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| 158 | |
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| 159 | elif y is None: |
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| 160 | y = x |
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| 161 | x = range(len(y)) |
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| 162 | |
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| 163 | if mask is None: |
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| 164 | if fmt is None: |
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| 165 | line = self.axes.plot(x, y) |
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| 166 | else: |
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| 167 | line = self.axes.plot(x, y, fmt) |
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| 168 | else: |
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| 169 | segments = [] |
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| 170 | |
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| 171 | mask = list(mask) |
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| 172 | i = 0 |
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| 173 | while mask[i:].count(1): |
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| 174 | i += mask[i:].index(1) |
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| 175 | if mask[i:].count(0): |
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| 176 | j = i + mask[i:].index(0) |
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| 177 | else: |
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| 178 | j = len(mask) |
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| 179 | |
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| 180 | segments.append(x[i:j]) |
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| 181 | segments.append(y[i:j]) |
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| 182 | |
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| 183 | i = j |
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| 184 | |
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| 185 | line = self.axes.plot(*segments) |
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| 186 | |
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| 187 | # Add to an existing line? |
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| 188 | if add is None or len(self.lines) < add < 0: |
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| 189 | # Don't add. |
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| 190 | self.lines.append(line) |
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| 191 | i = len(self.lines) - 1 |
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| 192 | else: |
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| 193 | if add == 0: add = len(self.lines) |
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| 194 | i = add - 1 |
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| 195 | self.lines[i].extend(line) |
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| 196 | |
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| 197 | # Set/reset attributes for the line. |
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| 198 | gotcolour = False |
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| 199 | for k, v in self.attributes.iteritems(): |
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| 200 | if k == 'color': gotcolour = True |
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| 201 | for segment in self.lines[i]: |
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| 202 | getattr(segment, "set_%s"%k)(v) |
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| 203 | |
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| 204 | if not gotcolour and len(self.colormap): |
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| 205 | for segment in self.lines[i]: |
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| 206 | getattr(segment, "set_color")(self.colormap[self.color]) |
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| 207 | |
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| 208 | self.color += 1 |
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| 209 | if self.color >= len(self.colormap): |
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| 210 | self.color = 0 |
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| 211 | |
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| 212 | self.show() |
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| 213 | |
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| 214 | |
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| 215 | def position(self): |
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| 216 | """ |
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| 217 | Use the mouse to get a position from a graph. |
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| 218 | """ |
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| 219 | |
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| 220 | def position_disable(event): |
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| 221 | self.register('button_press', None) |
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| 222 | print '%.4f, %.4f' % (event.xdata, event.ydata) |
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| 223 | |
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| 224 | print 'Press any mouse button...' |
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| 225 | self.register('button_press', position_disable) |
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| 226 | |
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| 227 | |
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| 228 | def region(self): |
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| 229 | """ |
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| 230 | Use the mouse to get a rectangular region from a plot. |
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| 231 | |
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| 232 | The return value is [x0, y0, x1, y1] in world coordinates. |
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| 233 | """ |
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| 234 | |
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| 235 | def region_start(event): |
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| 236 | height = self.canvas.figure.bbox.height() |
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| 237 | self.rect = {'fig': None, 'height': height, |
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| 238 | 'x': event.x, 'y': height - event.y, |
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| 239 | 'world': [event.xdata, event.ydata, |
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| 240 | event.xdata, event.ydata]} |
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| 241 | self.register('button_press', None) |
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| 242 | self.register('motion_notify', region_draw) |
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| 243 | self.register('button_release', region_disable) |
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| 244 | |
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| 245 | def region_draw(event): |
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| 246 | self.canvas._tkcanvas.delete(self.rect['fig']) |
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| 247 | self.rect['fig'] = self.canvas._tkcanvas.create_rectangle( |
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| 248 | self.rect['x'], self.rect['y'], |
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| 249 | event.x, self.rect['height'] - event.y) |
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| 250 | |
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| 251 | def region_disable(event): |
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| 252 | self.register('motion_notify', None) |
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| 253 | self.register('button_release', None) |
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| 254 | |
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| 255 | self.canvas._tkcanvas.delete(self.rect['fig']) |
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| 256 | |
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| 257 | self.rect['world'][2:4] = [event.xdata, event.ydata] |
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| 258 | print '(%.2f, %.2f) (%.2f, %.2f)' % (self.rect['world'][0], |
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| 259 | self.rect['world'][1], self.rect['world'][2], |
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| 260 | self.rect['world'][3]) |
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| 261 | |
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| 262 | self.register('button_press', region_start) |
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| 263 | |
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| 264 | # This has to be modified to block and return the result (currently |
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| 265 | # printed by region_disable) when that becomes possible in matplotlib. |
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| 266 | |
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| 267 | return [0.0, 0.0, 0.0, 0.0] |
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| 268 | |
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| 269 | |
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| 270 | def register(self, type=None, func=None): |
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| 271 | """ |
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| 272 | Register, reregister, or deregister events of type 'button_press', |
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| 273 | 'button_release', or 'motion_notify'. |
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| 274 | |
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| 275 | The specified callback function should have the following signature: |
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| 276 | |
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| 277 | def func(event) |
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| 278 | |
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| 279 | where event is an MplEvent instance containing the following data: |
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| 280 | |
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| 281 | name # Event name. |
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| 282 | canvas # FigureCanvas instance generating the event. |
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| 283 | x = None # x position - pixels from left of canvas. |
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| 284 | y = None # y position - pixels from bottom of canvas. |
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| 285 | button = None # Button pressed: None, 1, 2, 3. |
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| 286 | key = None # Key pressed: None, chr(range(255)), shift, |
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| 287 | win, or control |
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| 288 | inaxes = None # Axes instance if cursor within axes. |
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| 289 | xdata = None # x world coordinate. |
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| 290 | ydata = None # y world coordinate. |
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| 291 | |
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| 292 | For example: |
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| 293 | |
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| 294 | def mouse_move(event): |
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| 295 | print event.xdata, event.ydata |
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| 296 | |
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| 297 | a = asaplot() |
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| 298 | a.register('motion_notify', mouse_move) |
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| 299 | |
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| 300 | If func is None, the event is deregistered. |
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| 301 | |
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| 302 | Note that in TkAgg keyboard button presses don't generate an event. |
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| 303 | """ |
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| 304 | |
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| 305 | if not self.events.has_key(type): return |
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| 306 | |
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| 307 | if func is None: |
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| 308 | if self.events[type] is not None: |
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| 309 | # It's not clear that this does anything. |
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| 310 | self.canvas.mpl_disconnect(self.events[type]) |
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| 311 | self.events[type] = None |
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| 312 | |
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| 313 | # It seems to be necessary to return events to the toolbar. |
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| 314 | if type == 'motion_notify': |
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| 315 | self.canvas.mpl_connect(type + '_event', |
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| 316 | self.figmgr.toolbar.mouse_move) |
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| 317 | elif type == 'button_press': |
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| 318 | self.canvas.mpl_connect(type + '_event', |
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| 319 | self.figmgr.toolbar.press) |
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| 320 | elif type == 'button_release': |
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| 321 | self.canvas.mpl_connect(type + '_event', |
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| 322 | self.figmgr.toolbar.release) |
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| 323 | |
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| 324 | else: |
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| 325 | self.events[type] = self.canvas.mpl_connect(type + '_event', func) |
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| 326 | |
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| 327 | |
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| 328 | def release(self): |
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| 329 | """ |
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| 330 | Release buffered graphics. |
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| 331 | """ |
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| 332 | self.buffering = False |
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| 333 | self.show() |
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| 334 | |
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| 335 | |
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| 336 | def save(self, fname=None, orientation=None, dpi=None): |
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| 337 | """ |
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| 338 | Save the plot to a file. |
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| 339 | |
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| 340 | fname is the name of the output file. The image format is determined |
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| 341 | from the file suffix; 'png', 'ps', and 'eps' are recognized. If no |
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| 342 | file name is specified 'yyyymmdd_hhmmss.png' is created in the current |
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| 343 | directory. |
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| 344 | """ |
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| 345 | if fname is None: |
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| 346 | from datetime import datetime |
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| 347 | dstr = datetime.now().strftime('%Y%m%d_%H%M%S') |
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| 348 | fname = 'asap'+dstr+'.png' |
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| 349 | |
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| 350 | d = ['png','.ps','eps'] |
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| 351 | |
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| 352 | from os.path import expandvars |
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| 353 | fname = expandvars(fname) |
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| 354 | |
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| 355 | if fname[-3:].lower() in d: |
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| 356 | try: |
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| 357 | if fname[-3:].lower() == ".ps": |
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| 358 | w = self.figure.figwidth.get() |
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| 359 | h = self.figure.figheight.get() |
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| 360 | a4w = 8.25 |
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| 361 | a4h = 11.25 |
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| 362 | |
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| 363 | if orientation is None: |
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| 364 | # auto oriented |
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| 365 | if w > h: |
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| 366 | orientation = 'landscape' |
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| 367 | else: |
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| 368 | orientation = 'portrait' |
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| 369 | ds = None |
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| 370 | if orientation == 'landscape': |
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| 371 | ds = min(a4h/w,a4w/h) |
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| 372 | else: |
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| 373 | ds = min(a4w/w,a4h/h) |
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| 374 | ow = ds * w |
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| 375 | oh = ds * h |
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| 376 | self.figure.set_figsize_inches((ow,oh)) |
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| 377 | self.canvas.print_figure(fname,orientation=orientation) |
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| 378 | print 'Written file %s' % (fname) |
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| 379 | else: |
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| 380 | if dpi is None: |
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| 381 | dpi =150 |
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| 382 | self.canvas.print_figure(fname,dpi=dpi) |
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| 383 | print 'Written file %s' % (fname) |
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| 384 | except IOError, msg: |
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| 385 | print 'Failed to save %s: Error msg was\n\n%s' % (fname, err) |
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| 386 | return |
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| 387 | else: |
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| 388 | print "Invalid image type. Valid types are:" |
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| 389 | print "'ps', 'eps', 'png'" |
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| 390 | |
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| 391 | |
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| 392 | def set_axes(self, what=None, *args, **kwargs): |
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| 393 | """ |
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| 394 | Set attributes for the axes by calling the relevant Axes.set_*() |
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| 395 | method. Colour translation is done as described in the doctext |
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| 396 | for palette(). |
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| 397 | """ |
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| 398 | |
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| 399 | if what is None: return |
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| 400 | if what[-6:] == 'colour': what = what[:-6] + 'color' |
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| 401 | |
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| 402 | newargs = {} |
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| 403 | |
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| 404 | for k, v in kwargs.iteritems(): |
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| 405 | k = k.lower() |
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| 406 | if k == 'colour': k = 'color' |
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| 407 | newargs[k] = v |
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| 408 | |
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| 409 | getattr(self.axes, "set_%s"%what)(*args, **newargs) |
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| 410 | self.show() |
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| 411 | |
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| 412 | |
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| 413 | def set_figure(self, what=None, *args, **kwargs): |
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| 414 | """ |
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| 415 | Set attributes for the figure by calling the relevant Figure.set_*() |
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| 416 | method. Colour translation is done as described in the doctext |
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| 417 | for palette(). |
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| 418 | """ |
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| 419 | |
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| 420 | if what is None: return |
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| 421 | if what[-6:] == 'colour': what = what[:-6] + 'color' |
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| 422 | #if what[-5:] == 'color' and len(args): |
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| 423 | # args = (get_colour(args[0]),) |
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| 424 | |
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| 425 | newargs = {} |
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| 426 | for k, v in kwargs.iteritems(): |
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| 427 | k = k.lower() |
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| 428 | if k == 'colour': k = 'color' |
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| 429 | newargs[k] = v |
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| 430 | |
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| 431 | getattr(self.figure, "set_%s"%what)(*args, **newargs) |
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| 432 | self.show() |
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| 433 | |
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| 434 | |
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| 435 | def set_limits(self, xlim=None, ylim=None): |
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| 436 | """ |
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| 437 | Set x-, and y-limits for each subplot. |
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| 438 | |
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| 439 | xlim = [xmin, xmax] as in axes.set_xlim(). |
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| 440 | ylim = [ymin, ymax] as in axes.set_ylim(). |
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| 441 | """ |
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| 442 | for s in self.subplots: |
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| 443 | self.axes = s['axes'] |
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| 444 | self.lines = s['lines'] |
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| 445 | oldxlim = list(self.axes.get_xlim()) |
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| 446 | oldylim = list(self.axes.get_ylim()) |
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| 447 | if xlim is not None: |
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| 448 | for i in range(len(xlim)): |
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| 449 | if xlim[i] is not None: |
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| 450 | oldxlim[i] = xlim[i] |
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| 451 | if ylim is not None: |
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| 452 | for i in range(len(ylim)): |
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| 453 | if ylim[i] is not None: |
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| 454 | oldylim[i] = ylim[i] |
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| 455 | self.axes.set_xlim(oldxlim) |
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| 456 | self.axes.set_ylim(oldylim) |
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| 457 | return |
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| 458 | |
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| 459 | |
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| 460 | def set_line(self, number=None, **kwargs): |
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| 461 | """ |
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| 462 | Set attributes for the specified line, or else the next line(s) |
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| 463 | to be plotted. |
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| 464 | |
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| 465 | number is the 0-relative number of a line that has already been |
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| 466 | plotted. If no such line exists, attributes are recorded and used |
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| 467 | for the next line(s) to be plotted. |
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| 468 | |
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| 469 | Keyword arguments specify Line2D attributes, e.g. color='r'. Do |
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| 470 | |
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| 471 | import matplotlib |
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| 472 | help(matplotlib.lines) |
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| 473 | |
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| 474 | The set_* methods of class Line2D define the attribute names and |
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| 475 | values. For non-US usage, "colour" is recognized as synonymous with |
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| 476 | "color". |
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| 477 | |
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| 478 | Set the value to None to delete an attribute. |
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| 479 | |
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| 480 | Colour translation is done as described in the doctext for palette(). |
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| 481 | """ |
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| 482 | |
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| 483 | redraw = False |
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| 484 | for k, v in kwargs.iteritems(): |
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| 485 | k = k.lower() |
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| 486 | if k == 'colour': k = 'color' |
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| 487 | |
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| 488 | if 0 <= number < len(self.lines): |
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| 489 | if self.lines[number] is not None: |
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| 490 | for line in self.lines[number]: |
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| 491 | getattr(line, "set_%s"%k)(v) |
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| 492 | redraw = True |
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| 493 | else: |
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| 494 | if v is None: |
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| 495 | del self.attributes[k] |
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| 496 | else: |
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| 497 | self.attributes[k] = v |
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| 498 | |
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| 499 | if redraw: self.show() |
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| 500 | |
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| 501 | |
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| 502 | def set_panels(self, rows=1, cols=0, n=-1, nplots=-1, ganged=True): |
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| 503 | """ |
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| 504 | Set the panel layout. |
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| 505 | |
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| 506 | rows and cols, if cols != 0, specify the number of rows and columns in |
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| 507 | a regular layout. (Indexing of these panels in matplotlib is row- |
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| 508 | major, i.e. column varies fastest.) |
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| 509 | |
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| 510 | cols == 0 is interpreted as a retangular layout that accomodates |
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| 511 | 'rows' panels, e.g. rows == 6, cols == 0 is equivalent to |
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| 512 | rows == 2, cols == 3. |
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| 513 | |
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| 514 | 0 <= n < rows*cols is interpreted as the 0-relative panel number in |
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| 515 | the configuration specified by rows and cols to be added to the |
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| 516 | current figure as its next 0-relative panel number (i). This allows |
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| 517 | non-regular panel layouts to be constructed via multiple calls. Any |
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| 518 | other value of n clears the plot and produces a rectangular array of |
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| 519 | empty panels. The number of these may be limited by nplots. |
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| 520 | """ |
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| 521 | if n < 0 and len(self.subplots): |
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| 522 | self.figure.clear() |
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| 523 | self.set_title() |
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| 524 | |
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| 525 | if rows < 1: rows = 1 |
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| 526 | |
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| 527 | if cols <= 0: |
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| 528 | i = int(sqrt(rows)) |
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| 529 | if i*i < rows: i += 1 |
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| 530 | cols = i |
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| 531 | |
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| 532 | if i*(i-1) >= rows: i -= 1 |
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| 533 | rows = i |
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| 534 | |
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| 535 | if 0 <= n < rows*cols: |
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| 536 | i = len(self.subplots) |
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| 537 | self.subplots.append({}) |
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| 538 | |
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| 539 | self.subplots[i]['axes'] = self.figure.add_subplot(rows, |
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| 540 | cols, n+1) |
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| 541 | self.subplots[i]['lines'] = [] |
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| 542 | |
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| 543 | if i == 0: self.subplot(0) |
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| 544 | |
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| 545 | self.rows = 0 |
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| 546 | self.cols = 0 |
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| 547 | |
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| 548 | else: |
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| 549 | self.subplots = [] |
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| 550 | |
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| 551 | if nplots < 1 or rows*cols < nplots: |
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| 552 | nplots = rows*cols |
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| 553 | |
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| 554 | for i in range(nplots): |
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| 555 | self.subplots.append({}) |
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| 556 | |
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| 557 | self.subplots[i]['axes'] = self.figure.add_subplot(rows, |
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| 558 | cols, i+1) |
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| 559 | self.subplots[i]['lines'] = [] |
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| 560 | xfsize = self.subplots[i]['axes'].xaxis.label.get_size()-cols/2 |
|---|
| 561 | yfsize = self.subplots[i]['axes'].yaxis.label.get_size()-rows/2 |
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| 562 | self.subplots[i]['axes'].xaxis.label.set_size(xfsize) |
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| 563 | self.subplots[i]['axes'].yaxis.label.set_size(yfsize) |
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| 564 | |
|---|
| 565 | if ganged: |
|---|
| 566 | if rows > 1 or cols > 1: |
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| 567 | # Squeeze the plots together. |
|---|
| 568 | pos = self.subplots[i]['axes'].get_position() |
|---|
| 569 | if cols > 1: pos[2] *= 1.2 |
|---|
| 570 | if rows > 1: pos[3] *= 1.2 |
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| 571 | self.subplots[i]['axes'].set_position(pos) |
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| 572 | |
|---|
| 573 | # Suppress tick labelling for interior subplots. |
|---|
| 574 | if i <= (rows-1)*cols - 1: |
|---|
| 575 | if i+cols < nplots: |
|---|
| 576 | # Suppress x-labels for frames width |
|---|
| 577 | # adjacent frames |
|---|
| 578 | for tick in \ |
|---|
| 579 | self.subplots[i]['axes'].xaxis.majorTicks: |
|---|
| 580 | tick.label1On = False |
|---|
| 581 | self.subplots[i]['axes'].xaxis.label.set_visible(False) |
|---|
| 582 | if i%cols: |
|---|
| 583 | # Suppress y-labels for frames not in the left column. |
|---|
| 584 | for tick in self.subplots[i]['axes'].yaxis.majorTicks: |
|---|
| 585 | tick.label1On = False |
|---|
| 586 | self.subplots[i]['axes'].yaxis.label.set_visible(False) |
|---|
| 587 | |
|---|
| 588 | |
|---|
| 589 | self.rows = rows |
|---|
| 590 | self.cols = cols |
|---|
| 591 | |
|---|
| 592 | self.subplot(0) |
|---|
| 593 | |
|---|
| 594 | def set_title(self, title=None): |
|---|
| 595 | """ |
|---|
| 596 | Set the title of the plot window. Use the previous title if title is |
|---|
| 597 | omitted. |
|---|
| 598 | """ |
|---|
| 599 | if title is not None: |
|---|
| 600 | self.title = title |
|---|
| 601 | |
|---|
| 602 | self.figure.text(0.5, 0.95, self.title, horizontalalignment='center') |
|---|
| 603 | |
|---|
| 604 | |
|---|
| 605 | def show(self): |
|---|
| 606 | """ |
|---|
| 607 | Show graphics dependent on the current buffering state. |
|---|
| 608 | """ |
|---|
| 609 | if not self.buffering: |
|---|
| 610 | if self.loc is not None: |
|---|
| 611 | for j in range(len(self.subplots)): |
|---|
| 612 | lines = [] |
|---|
| 613 | labels = [] |
|---|
| 614 | i = 0 |
|---|
| 615 | for line in self.subplots[j]['lines']: |
|---|
| 616 | i += 1 |
|---|
| 617 | if line is not None: |
|---|
| 618 | lines.append(line[0]) |
|---|
| 619 | lbl = line[0].get_label() |
|---|
| 620 | if lbl == '': |
|---|
| 621 | lbl = str(i) |
|---|
| 622 | labels.append(lbl) |
|---|
| 623 | |
|---|
| 624 | if len(lines): |
|---|
| 625 | self.subplots[j]['axes'].legend(tuple(lines), |
|---|
| 626 | tuple(labels), |
|---|
| 627 | self.loc) |
|---|
| 628 | else: |
|---|
| 629 | self.subplots[j]['axes'].legend((' ')) |
|---|
| 630 | |
|---|
| 631 | |
|---|
| 632 | def subplot(self, i=None, inc=None): |
|---|
| 633 | """ |
|---|
| 634 | Set the subplot to the 0-relative panel number as defined by one or |
|---|
| 635 | more invokations of set_panels(). |
|---|
| 636 | """ |
|---|
| 637 | l = len(self.subplots) |
|---|
| 638 | if l: |
|---|
| 639 | if i is not None: |
|---|
| 640 | self.i = i |
|---|
| 641 | |
|---|
| 642 | if inc is not None: |
|---|
| 643 | self.i += inc |
|---|
| 644 | |
|---|
| 645 | self.i %= l |
|---|
| 646 | self.axes = self.subplots[self.i]['axes'] |
|---|
| 647 | self.lines = self.subplots[self.i]['lines'] |
|---|
| 648 | |
|---|
| 649 | |
|---|
| 650 | def text(self, *args, **kwargs): |
|---|
| 651 | """ |
|---|
| 652 | Add text to the figure. |
|---|
| 653 | """ |
|---|
| 654 | self.figure.text(*args, **kwargs) |
|---|
| 655 | self.show() |
|---|
