| 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 | import Tkinter as Tk
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| 8 |
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| 9 | import matplotlib
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| 10 | matplotlib.use("TkAgg")
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| 11 |
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| 12 | from matplotlib.backends import new_figure_manager, show
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| 13 | from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, \
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| 14 | FigureManagerTkAgg
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| 15 | from matplotlib.figure import Figure, Text
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| 16 | from matplotlib.font_manager import FontProperties
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| 17 | from matplotlib.numerix import sqrt
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| 18 | from matplotlib import rc, rcParams
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| 19 |
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| 20 | # Force use of the newfangled toolbar.
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| 21 | matplotlib.rcParams['toolbar'] = 'toolbar2'
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| 22 |
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| 23 | # Colour dictionary.
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| 24 | colours = {}
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| 25 |
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| 26 | class ASAPlot:
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| 27 | """
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| 28 | ASAP plotting class based on matplotlib.
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| 29 | """
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| 30 |
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| 31 | def __init__(self, rows=1, cols=0, title='', size=(8,6), buffering=False):
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| 32 | """
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| 33 | Create a new instance of the ASAPlot plotting class.
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| 34 |
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| 35 | If rows < 1 then a separate call to set_panels() is required to define
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| 36 | the panel layout; refer to the doctext for set_panels().
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| 37 | """
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| 38 | self.window = Tk.Tk()
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| 39 | self.is_dead = False
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| 40 | def dest_callback():
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| 41 | self.is_dead = True
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| 42 | self.window.destroy()
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| 43 |
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| 44 | self.window.protocol("WM_DELETE_WINDOW", dest_callback)
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| 45 |
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| 46 | self.figure = Figure(figsize=size, facecolor='#ddddee')
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| 47 | self.canvas = FigureCanvasTkAgg(self.figure, master=self.window)
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| 48 | self.canvas.get_tk_widget().pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)
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| 49 |
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| 50 | # Simply instantiating this is enough to get a working toolbar.
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| 51 | self.figmgr = FigureManagerTkAgg(self.canvas, 1, self.window)
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| 52 | self.window.wm_title('ASAPlot graphics window')
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| 53 |
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| 54 | self.events = {'button_press':None,
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| 55 | 'button_release':None,
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| 56 | 'motion_notify':None}
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| 57 |
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| 58 | self.set_title(title)
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| 59 | self.subplots = []
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| 60 | if rows > 0:
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| 61 | self.set_panels(rows, cols)
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| 62 |
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| 63 |
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| 64 | # Set matplotlib default colour sequence.
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| 65 | self.colours = [1, 'b', 'g', 'r', 'c', 'm', 'y', 'k']
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| 66 | self.attributes = {}
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| 67 | self.loc = 0
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| 68 |
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| 69 | matplotlib.interactive = True
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| 70 | self.buffering = buffering
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| 71 |
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| 72 | self.canvas.show()
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| 73 |
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| 74 |
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| 75 | def clear(self):
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| 76 | """
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| 77 | Delete all lines from the plot. Line numbering will restart from 1.
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| 78 | """
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| 79 |
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| 80 | for i in range(1,len(self.lines)+1):
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| 81 | self.delete(i)
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| 82 | self.axes.clear()
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| 83 | self.colours[0] = 1
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| 84 | self.lines = []
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| 85 |
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| 86 |
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| 87 | def delete(self, numbers=None):
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| 88 | """
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| 89 | Delete the 0-relative line number, default is to delete the last.
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| 90 | The remaining lines are NOT renumbered.
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| 91 | """
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| 92 |
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| 93 | if numbers is None: numbers = [len(self.lines)-1]
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| 94 |
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| 95 | if not hasattr(numbers, '__iter__'):
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| 96 | numbers = [numbers]
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| 97 |
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| 98 | for number in numbers:
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| 99 | if 0 <= number < len(self.lines):
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| 100 | if self.lines[number] is not None:
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| 101 | for line in self.lines[number]:
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| 102 | line.set_linestyle('None')
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| 103 | self.lines[number] = None
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| 104 | self.show()
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| 105 |
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| 106 | def get_line(self):
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| 107 | """
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| 108 | Get the current default line attributes.
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| 109 | """
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| 110 | return self.attributes
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| 111 |
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| 112 |
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| 113 | def hist(self, x=None, y=None, fmt=None):
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| 114 | """
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| 115 | Plot a histogram. N.B. the x values refer to the start of the
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| 116 | histogram bin.
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| 117 |
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| 118 | fmt is the line style as in plot().
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| 119 | """
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| 120 |
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| 121 | if x is None:
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| 122 | if y is None: return
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| 123 | x = range(0,len(y))
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| 124 |
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| 125 | if len(x) != len(y):
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| 126 | return
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| 127 |
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| 128 | l2 = 2*len(x)
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| 129 | x2 = range(0,l2)
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| 130 | y2 = range(0,l2)
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| 131 |
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| 132 | for i in range(0,l2):
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| 133 | x2[i] = x[i/2]
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| 134 |
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| 135 | y2[0] = 0
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| 136 | for i in range(1,l2):
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| 137 | y2[i] = y[(i-1)/2]
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| 138 |
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| 139 | self.plot(x2, y2, fmt)
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| 140 |
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| 141 |
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| 142 | def hold(self, hold=True):
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| 143 | """
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| 144 | Buffer graphics until subsequently released.
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| 145 | """
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| 146 | self.buffering = hold
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| 147 |
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| 148 |
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| 149 | def legend(self, loc=None):
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| 150 | """
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| 151 | Add a legend to the plot.
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| 152 |
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| 153 | Any other value for loc else disables the legend:
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| 154 | 1: upper right
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| 155 | 2: upper left
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| 156 | 3: lower left
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| 157 | 4: lower right
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| 158 | 5: right
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| 159 | 6: center left
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| 160 | 7: center right
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| 161 | 8: lower center
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| 162 | 9: upper center
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| 163 | 10: center
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| 164 |
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| 165 | """
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| 166 | if isinstance(loc,int):
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| 167 | if 0 > loc > 10: loc = 0
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| 168 | self.loc = loc
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| 169 | self.show()
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| 170 |
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| 171 |
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| 172 | def map(self):
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| 173 | """
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| 174 | Reveal the ASAPlot graphics window and bring it to the top of the
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| 175 | window stack.
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| 176 | """
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| 177 | self.window.wm_deiconify()
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| 178 | self.window.lift()
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| 179 |
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| 180 |
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| 181 | def palette(self, pen=None, colours=None):
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| 182 | """
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| 183 | Redefine the colour sequence.
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| 184 |
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| 185 | pen is the pen number to use for the next plot; this will be auto-
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| 186 | incremented.
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| 187 |
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| 188 | colours is the list of pen colours. Colour may be specified via
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| 189 | the single letter values understood by matplotlib:
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| 190 |
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| 191 | b: blue
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| 192 | g: green
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| 193 | r: red
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| 194 | c: cyan
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| 195 | m: magenta
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| 196 | y: yellow
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| 197 | k: black
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| 198 | w: white
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| 199 |
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| 200 | or via the full name as listed in the colour dictionary which is
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| 201 | loaded by default by load_colours() from rgb.txt and listed by
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| 202 | list_colours().
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| 203 | """
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| 204 |
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| 205 | if pen is None and colours is None:
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| 206 | self.colours = []
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| 207 | return
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| 208 |
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| 209 | if pen is None:
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| 210 | if not len(self.colours):
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| 211 | self.colours = [1]
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| 212 | else:
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| 213 | self.colours[0] = pen
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| 214 |
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| 215 | if colours is None:
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| 216 | return
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| 217 |
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| 218 | cols = []
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| 219 | for col in colours:
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| 220 | cols.append(get_colour(col))
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| 221 |
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| 222 | self.colours[1:] = cols
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| 223 |
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| 224 | if 0 > self.colours[0] > len(self.colours):
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| 225 | self.colours[0] = 1
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| 226 |
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| 227 |
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| 228 | def plot(self, x=None, y=None, mask=None, fmt=None, add=None):
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| 229 | """
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| 230 | Plot the next line in the current frame using the current line
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| 231 | attributes. The ASAPlot graphics window will be mapped and raised.
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| 232 |
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| 233 | The argument list works a bit like the matlab plot() function.
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| 234 | """
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| 235 |
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| 236 | if x is None:
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| 237 | if y is None: return
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| 238 | x = range(len(y))
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| 239 |
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| 240 | elif y is None:
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| 241 | y = x
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| 242 | x = range(len(y))
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| 243 |
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| 244 | if mask is None:
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| 245 | if fmt is None:
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| 246 | line = self.axes.plot(x, y)
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| 247 | else:
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| 248 | line = self.axes.plot(x, y, fmt)
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| 249 | else:
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| 250 | segments = []
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| 251 |
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| 252 | mask = list(mask)
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| 253 | i = 0
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| 254 | while mask[i:].count(1):
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| 255 | i += mask[i:].index(1)
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| 256 | if mask[i:].count(0):
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| 257 | j = i + mask[i:].index(0)
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| 258 | else:
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| 259 | j = len(mask)
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| 260 |
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| 261 | segments.append(x[i:j])
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| 262 | segments.append(y[i:j])
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| 263 |
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| 264 | i = j
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| 265 |
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| 266 | line = self.axes.plot(*segments)
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| 267 |
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| 268 | # Add to an existing line?
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| 269 | if add is None or len(self.lines) < add < 0:
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| 270 | # Don't add.
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| 271 | self.lines.append(line)
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| 272 | i = len(self.lines) - 1
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| 273 | else:
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| 274 | if add == 0: add = len(self.lines)
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| 275 | i = add - 1
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| 276 | self.lines[i].extend(line)
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| 277 |
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| 278 | # Set/reset attributes for the line.
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| 279 | gotcolour = False
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| 280 | for k, v in self.attributes.iteritems():
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| 281 | if k == 'color': gotcolour = True
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| 282 | for segment in self.lines[i]:
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| 283 | getattr(segment, "set_%s"%k)(v)
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| 284 |
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| 285 | if not gotcolour and len(self.colours):
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| 286 | for segment in self.lines[i]:
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| 287 | getattr(segment, "set_color")(self.colours[self.colours[0]])
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| 288 |
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| 289 | self.colours[0] += 1
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| 290 | if self.colours[0] >= len(self.colours):
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| 291 | self.colours[0] = 1
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| 292 |
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| 293 | self.show()
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| 294 |
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| 295 |
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| 296 | def position(self):
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| 297 | """
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| 298 | Use the mouse to get a position from a graph.
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| 299 | """
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| 300 |
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| 301 | def position_disable(event):
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| 302 | self.register('button_press', None)
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| 303 | print '%.4f, %.4f' % (event.xdata, event.ydata)
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| 304 |
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| 305 | print 'Press any mouse button...'
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| 306 | self.register('button_press', position_disable)
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| 307 |
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| 308 |
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| 309 | def quit(self):
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| 310 | """
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| 311 | Destroy the ASAPlot graphics window.
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| 312 | """
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| 313 | self.window.destroy()
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| 314 |
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| 315 |
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| 316 | def region(self):
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| 317 | """
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| 318 | Use the mouse to get a rectangular region from a plot.
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| 319 |
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| 320 | The return value is [x0, y0, x1, y1] in world coordinates.
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| 321 | """
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| 322 |
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| 323 | def region_start(event):
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| 324 | height = self.canvas.figure.bbox.height()
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| 325 | self.rect = {'fig': None, 'height': height,
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| 326 | 'x': event.x, 'y': height - event.y,
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| 327 | 'world': [event.xdata, event.ydata,
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| 328 | event.xdata, event.ydata]}
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| 329 | self.register('button_press', None)
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| 330 | self.register('motion_notify', region_draw)
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| 331 | self.register('button_release', region_disable)
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| 332 |
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| 333 | def region_draw(event):
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| 334 | self.canvas._tkcanvas.delete(self.rect['fig'])
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| 335 | self.rect['fig'] = self.canvas._tkcanvas.create_rectangle(
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| 336 | self.rect['x'], self.rect['y'],
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| 337 | event.x, self.rect['height'] - event.y)
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| 338 |
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| 339 | def region_disable(event):
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| 340 | self.register('motion_notify', None)
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| 341 | self.register('button_release', None)
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| 342 |
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| 343 | self.canvas._tkcanvas.delete(self.rect['fig'])
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| 344 |
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| 345 | self.rect['world'][2:4] = [event.xdata, event.ydata]
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| 346 | print '(%.2f, %.2f) (%.2f, %.2f)' % (self.rect['world'][0],
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| 347 | self.rect['world'][1], self.rect['world'][2],
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| 348 | self.rect['world'][3])
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| 349 |
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| 350 | self.register('button_press', region_start)
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| 351 |
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| 352 | # This has to be modified to block and return the result (currently
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| 353 | # printed by region_disable) when that becomes possible in matplotlib.
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| 354 |
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| 355 | return [0.0, 0.0, 0.0, 0.0]
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| 356 |
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| 357 |
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| 358 | def register(self, type=None, func=None):
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| 359 | """
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| 360 | Register, reregister, or deregister events of type 'button_press',
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| 361 | 'button_release', or 'motion_notify'.
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| 362 |
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| 363 | The specified callback function should have the following signature:
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| 364 |
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| 365 | def func(event)
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| 366 |
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| 367 | where event is an MplEvent instance containing the following data:
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| 368 |
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| 369 | name # Event name.
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| 370 | canvas # FigureCanvas instance generating the event.
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| 371 | x = None # x position - pixels from left of canvas.
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| 372 | y = None # y position - pixels from bottom of canvas.
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| 373 | button = None # Button pressed: None, 1, 2, 3.
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| 374 | key = None # Key pressed: None, chr(range(255)), shift,
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| 375 | win, or control
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| 376 | inaxes = None # Axes instance if cursor within axes.
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| 377 | xdata = None # x world coordinate.
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| 378 | ydata = None # y world coordinate.
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| 379 |
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| 380 | For example:
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| 381 |
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| 382 | def mouse_move(event):
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| 383 | print event.xdata, event.ydata
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| 384 |
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| 385 | a = asaplot()
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| 386 | a.register('motion_notify', mouse_move)
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| 387 |
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| 388 | If func is None, the event is deregistered.
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| 389 |
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| 390 | Note that in TkAgg keyboard button presses don't generate an event.
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| 391 | """
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| 392 |
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| 393 | if not self.events.has_key(type): return
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| 394 |
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| 395 | if func is None:
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| 396 | if self.events[type] is not None:
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| 397 | # It's not clear that this does anything.
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| 398 | self.canvas.mpl_disconnect(self.events[type])
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| 399 | self.events[type] = None
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| 400 |
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| 401 | # It seems to be necessary to return events to the toolbar.
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| 402 | if type == 'motion_notify':
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| 403 | self.canvas.mpl_connect(type + '_event',
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| 404 | self.figmgr.toolbar.mouse_move)
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| 405 | elif type == 'button_press':
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| 406 | self.canvas.mpl_connect(type + '_event',
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| 407 | self.figmgr.toolbar.press)
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| 408 | elif type == 'button_release':
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| 409 | self.canvas.mpl_connect(type + '_event',
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| 410 | self.figmgr.toolbar.release)
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| 411 |
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| 412 | else:
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| 413 | self.events[type] = self.canvas.mpl_connect(type + '_event', func)
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| 414 |
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| 415 |
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| 416 | def release(self):
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| 417 | """
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| 418 | Release buffered graphics.
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| 419 | """
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| 420 | self.buffering = False
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| 421 | self.show()
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| 422 |
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| 423 |
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| 424 | def save(self, fname=None):
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| 425 | """
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| 426 | Save the plot to a file.
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| 427 |
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| 428 | fname is the name of the output file. The image format is determined
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| 429 | from the file suffix; 'png', 'ps', and 'eps' are recognized. If no
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| 430 | file name is specified 'yyyymmdd_hhmmss.png' is created in the current
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| 431 | directory.
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| 432 | """
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| 433 | if fname is None:
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| 434 | from datetime import datetime
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| 435 | dstr = datetime.now().strftime('%Y%m%d_%H%M%S')
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| 436 | fname = 'asap'+dstr+'.png'
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| 437 |
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| 438 | d = ['png','.ps','eps']
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| 439 |
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| 440 | from os.path import expandvars
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| 441 | fname = expandvars(fname)
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| 442 |
|
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| 443 | if fname[-3:].lower() in d:
|
|---|
| 444 | try:
|
|---|
| 445 | self.canvas.print_figure(fname)
|
|---|
| 446 | print 'Written file %s' % (fname)
|
|---|
| 447 | except IOError, msg:
|
|---|
| 448 | print 'Failed to save %s: Error msg was\n\n%s' % (fname, err)
|
|---|
| 449 | return
|
|---|
| 450 | else:
|
|---|
| 451 | print "Invalid image type. Valid types are:"
|
|---|
| 452 | print "ps, eps, png"
|
|---|
| 453 |
|
|---|
| 454 |
|
|---|
| 455 | def set_axes(self, what=None, *args, **kwargs):
|
|---|
| 456 | """
|
|---|
| 457 | Set attributes for the axes by calling the relevant Axes.set_*()
|
|---|
| 458 | method. Colour translation is done as described in the doctext
|
|---|
| 459 | for palette().
|
|---|
| 460 | """
|
|---|
| 461 |
|
|---|
| 462 | if what is None: return
|
|---|
| 463 | if what[-6:] == 'colour': what = what[:-6] + 'color'
|
|---|
| 464 |
|
|---|
| 465 | newargs = {}
|
|---|
| 466 | for k, v in kwargs.iteritems():
|
|---|
| 467 | k = k.lower()
|
|---|
| 468 | if k == 'colour': k = 'color'
|
|---|
| 469 |
|
|---|
| 470 | if k == 'color':
|
|---|
| 471 | v = get_colour(v)
|
|---|
| 472 |
|
|---|
| 473 | newargs[k] = v
|
|---|
| 474 |
|
|---|
| 475 | getattr(self.axes, "set_%s"%what)(*args, **newargs)
|
|---|
| 476 | self.show()
|
|---|
| 477 |
|
|---|
| 478 |
|
|---|
| 479 | def set_figure(self, what=None, *args, **kwargs):
|
|---|
| 480 | """
|
|---|
| 481 | Set attributes for the figure by calling the relevant Figure.set_*()
|
|---|
| 482 | method. Colour translation is done as described in the doctext
|
|---|
| 483 | for palette().
|
|---|
| 484 | """
|
|---|
| 485 |
|
|---|
| 486 | if what is None: return
|
|---|
| 487 | if what[-6:] == 'colour': what = what[:-6] + 'color'
|
|---|
| 488 | if what[-5:] == 'color' and len(args):
|
|---|
| 489 | args = (get_colour(args[0]),)
|
|---|
| 490 |
|
|---|
| 491 | newargs = {}
|
|---|
| 492 | for k, v in kwargs.iteritems():
|
|---|
| 493 | k = k.lower()
|
|---|
| 494 | if k == 'colour': k = 'color'
|
|---|
| 495 |
|
|---|
| 496 | if k == 'color':
|
|---|
| 497 | v = get_colour(v)
|
|---|
| 498 |
|
|---|
| 499 | newargs[k] = v
|
|---|
| 500 |
|
|---|
| 501 | getattr(self.figure, "set_%s"%what)(*args, **newargs)
|
|---|
| 502 | self.show()
|
|---|
| 503 |
|
|---|
| 504 |
|
|---|
| 505 | def set_limits(self, xlim=None, ylim=None):
|
|---|
| 506 | """
|
|---|
| 507 | Set x-, and y-limits for each subplot.
|
|---|
| 508 |
|
|---|
| 509 | xlim = [xmin, xmax] as in axes.set_xlim().
|
|---|
| 510 | ylim = [ymin, ymax] as in axes.set_ylim().
|
|---|
| 511 | """
|
|---|
| 512 | for s in self.subplots:
|
|---|
| 513 | self.axes = s['axes']
|
|---|
| 514 | self.lines = s['lines']
|
|---|
| 515 | oldxlim = list(self.axes.get_xlim())
|
|---|
| 516 | oldylim = list(self.axes.get_ylim())
|
|---|
| 517 | if xlim is not None:
|
|---|
| 518 | for i in range(len(xlim)):
|
|---|
| 519 | if xlim[i] is not None:
|
|---|
| 520 | oldxlim[i] = xlim[i]
|
|---|
| 521 | if ylim is not None:
|
|---|
| 522 | for i in range(len(ylim)):
|
|---|
| 523 | if ylim[i] is not None:
|
|---|
| 524 | oldylim[i] = ylim[i]
|
|---|
| 525 | self.axes.set_xlim(oldxlim)
|
|---|
| 526 | self.axes.set_ylim(oldylim)
|
|---|
| 527 | return
|
|---|
| 528 |
|
|---|
| 529 |
|
|---|
| 530 | def set_line(self, number=None, **kwargs):
|
|---|
| 531 | """
|
|---|
| 532 | Set attributes for the specified line, or else the next line(s)
|
|---|
| 533 | to be plotted.
|
|---|
| 534 |
|
|---|
| 535 | number is the 0-relative number of a line that has already been
|
|---|
| 536 | plotted. If no such line exists, attributes are recorded and used
|
|---|
| 537 | for the next line(s) to be plotted.
|
|---|
| 538 |
|
|---|
| 539 | Keyword arguments specify Line2D attributes, e.g. color='r'. Do
|
|---|
| 540 |
|
|---|
| 541 | import matplotlib
|
|---|
| 542 | help(matplotlib.lines)
|
|---|
| 543 |
|
|---|
| 544 | The set_* methods of class Line2D define the attribute names and
|
|---|
| 545 | values. For non-US usage, "colour" is recognized as synonymous with
|
|---|
| 546 | "color".
|
|---|
| 547 |
|
|---|
| 548 | Set the value to None to delete an attribute.
|
|---|
| 549 |
|
|---|
| 550 | Colour translation is done as described in the doctext for palette().
|
|---|
| 551 | """
|
|---|
| 552 |
|
|---|
| 553 | redraw = False
|
|---|
| 554 | for k, v in kwargs.iteritems():
|
|---|
| 555 | k = k.lower()
|
|---|
| 556 | if k == 'colour': k = 'color'
|
|---|
| 557 |
|
|---|
| 558 | if k == 'color':
|
|---|
| 559 | v = get_colour(v)
|
|---|
| 560 |
|
|---|
| 561 | if 0 <= number < len(self.lines):
|
|---|
| 562 | if self.lines[number] is not None:
|
|---|
| 563 | for line in self.lines[number]:
|
|---|
| 564 | getattr(line, "set_%s"%k)(v)
|
|---|
| 565 | redraw = True
|
|---|
| 566 | else:
|
|---|
| 567 | if v is None:
|
|---|
| 568 | del self.attributes[k]
|
|---|
| 569 | else:
|
|---|
| 570 | self.attributes[k] = v
|
|---|
| 571 |
|
|---|
| 572 | if redraw: self.show()
|
|---|
| 573 |
|
|---|
| 574 |
|
|---|
| 575 | def set_panels(self, rows=1, cols=0, n=-1, nplots=-1, ganged=True):
|
|---|
| 576 | """
|
|---|
| 577 | Set the panel layout.
|
|---|
| 578 |
|
|---|
| 579 | rows and cols, if cols != 0, specify the number of rows and columns in
|
|---|
| 580 | a regular layout. (Indexing of these panels in matplotlib is row-
|
|---|
| 581 | major, i.e. column varies fastest.)
|
|---|
| 582 |
|
|---|
| 583 | cols == 0 is interpreted as a retangular layout that accomodates
|
|---|
| 584 | 'rows' panels, e.g. rows == 6, cols == 0 is equivalent to
|
|---|
| 585 | rows == 2, cols == 3.
|
|---|
| 586 |
|
|---|
| 587 | 0 <= n < rows*cols is interpreted as the 0-relative panel number in
|
|---|
| 588 | the configuration specified by rows and cols to be added to the
|
|---|
| 589 | current figure as its next 0-relative panel number (i). This allows
|
|---|
| 590 | non-regular panel layouts to be constructed via multiple calls. Any
|
|---|
| 591 | other value of n clears the plot and produces a rectangular array of
|
|---|
| 592 | empty panels. The number of these may be limited by nplots.
|
|---|
| 593 | """
|
|---|
| 594 | if n < 0 and len(self.subplots):
|
|---|
| 595 | self.figure.clear()
|
|---|
| 596 | self.set_title()
|
|---|
| 597 |
|
|---|
| 598 | if rows < 1: rows = 1
|
|---|
| 599 |
|
|---|
| 600 | if cols <= 0:
|
|---|
| 601 | i = int(sqrt(rows))
|
|---|
| 602 | if i*i < rows: i += 1
|
|---|
| 603 | cols = i
|
|---|
| 604 |
|
|---|
| 605 | if i*(i-1) >= rows: i -= 1
|
|---|
| 606 | rows = i
|
|---|
| 607 |
|
|---|
| 608 | if 0 <= n < rows*cols:
|
|---|
| 609 | i = len(self.subplots)
|
|---|
| 610 | self.subplots.append({})
|
|---|
| 611 |
|
|---|
| 612 | self.subplots[i]['axes'] = self.figure.add_subplot(rows,
|
|---|
| 613 | cols, n+1)
|
|---|
| 614 | self.subplots[i]['lines'] = []
|
|---|
| 615 |
|
|---|
| 616 | if i == 0: self.subplot(0)
|
|---|
| 617 |
|
|---|
| 618 | self.rows = 0
|
|---|
| 619 | self.cols = 0
|
|---|
| 620 |
|
|---|
| 621 | else:
|
|---|
| 622 | self.subplots = []
|
|---|
| 623 |
|
|---|
| 624 | if nplots < 1 or rows*cols < nplots:
|
|---|
| 625 | nplots = rows*cols
|
|---|
| 626 |
|
|---|
| 627 | for i in range(nplots):
|
|---|
| 628 | self.subplots.append({})
|
|---|
| 629 |
|
|---|
| 630 | self.subplots[i]['axes'] = self.figure.add_subplot(rows,
|
|---|
| 631 | cols, i+1)
|
|---|
| 632 | self.subplots[i]['lines'] = []
|
|---|
| 633 | xfsize = self.subplots[i]['axes'].xaxis.label.get_size()-cols/2
|
|---|
| 634 | yfsize = self.subplots[i]['axes'].yaxis.label.get_size()-rows/2
|
|---|
| 635 | self.subplots[i]['axes'].xaxis.label.set_size(xfsize)
|
|---|
| 636 | self.subplots[i]['axes'].yaxis.label.set_size(yfsize)
|
|---|
| 637 |
|
|---|
| 638 | if ganged:
|
|---|
| 639 | if rows > 1 or cols > 1:
|
|---|
| 640 | # Squeeze the plots together.
|
|---|
| 641 | pos = self.subplots[i]['axes'].get_position()
|
|---|
| 642 | if cols > 1: pos[2] *= 1.2
|
|---|
| 643 | if rows > 1: pos[3] *= 1.2
|
|---|
| 644 | self.subplots[i]['axes'].set_position(pos)
|
|---|
| 645 |
|
|---|
| 646 | # Suppress tick labelling for interior subplots.
|
|---|
| 647 | if i <= (rows-1)*cols - 1:
|
|---|
| 648 | if i+cols < nplots:
|
|---|
| 649 | # Suppress x-labels for frames width
|
|---|
| 650 | # adjacent frames
|
|---|
| 651 | for tick in \
|
|---|
| 652 | self.subplots[i]['axes'].xaxis.majorTicks:
|
|---|
| 653 | tick.label1On = False
|
|---|
| 654 | self.subplots[i]['axes'].xaxis.label.set_visible(False)
|
|---|
| 655 | if i%cols:
|
|---|
| 656 | # Suppress y-labels for frames not in the left column.
|
|---|
| 657 | for tick in self.subplots[i]['axes'].yaxis.majorTicks:
|
|---|
| 658 | tick.label1On = False
|
|---|
| 659 | self.subplots[i]['axes'].yaxis.label.set_visible(False)
|
|---|
| 660 |
|
|---|
| 661 |
|
|---|
| 662 | self.rows = rows
|
|---|
| 663 | self.cols = cols
|
|---|
| 664 |
|
|---|
| 665 | self.subplot(0)
|
|---|
| 666 |
|
|---|
| 667 | def set_title(self, title=None):
|
|---|
| 668 | """
|
|---|
| 669 | Set the title of the plot window. Use the previous title if title is
|
|---|
| 670 | omitted.
|
|---|
| 671 | """
|
|---|
| 672 | if title is not None:
|
|---|
| 673 | self.title = title
|
|---|
| 674 |
|
|---|
| 675 | self.figure.text(0.5, 0.95, self.title, horizontalalignment='center')
|
|---|
| 676 |
|
|---|
| 677 |
|
|---|
| 678 | def show(self):
|
|---|
| 679 | """
|
|---|
| 680 | Show graphics dependent on the current buffering state.
|
|---|
| 681 | """
|
|---|
| 682 | if not self.buffering:
|
|---|
| 683 | if self.loc is not None:
|
|---|
| 684 | for j in range(len(self.subplots)):
|
|---|
| 685 | lines = []
|
|---|
| 686 | labels = []
|
|---|
| 687 | i = 0
|
|---|
| 688 | for line in self.subplots[j]['lines']:
|
|---|
| 689 | i += 1
|
|---|
| 690 | if line is not None:
|
|---|
| 691 | lines.append(line[0])
|
|---|
| 692 | lbl = line[0].get_label()
|
|---|
| 693 | if lbl == '':
|
|---|
| 694 | lbl = str(i)
|
|---|
| 695 | labels.append(lbl)
|
|---|
| 696 |
|
|---|
| 697 | if len(lines):
|
|---|
| 698 | self.subplots[j]['axes'].legend(tuple(lines),
|
|---|
| 699 | tuple(labels),
|
|---|
| 700 | self.loc)
|
|---|
| 701 | else:
|
|---|
| 702 | self.subplots[j]['axes'].legend((' '))
|
|---|
| 703 |
|
|---|
| 704 | self.window.wm_deiconify()
|
|---|
| 705 | self.canvas.show()
|
|---|
| 706 |
|
|---|
| 707 | def subplot(self, i=None, inc=None):
|
|---|
| 708 | """
|
|---|
| 709 | Set the subplot to the 0-relative panel number as defined by one or
|
|---|
| 710 | more invokations of set_panels().
|
|---|
| 711 | """
|
|---|
| 712 | l = len(self.subplots)
|
|---|
| 713 | if l:
|
|---|
| 714 | if i is not None:
|
|---|
| 715 | self.i = i
|
|---|
| 716 |
|
|---|
| 717 | if inc is not None:
|
|---|
| 718 | self.i += inc
|
|---|
| 719 |
|
|---|
| 720 | self.i %= l
|
|---|
| 721 | self.axes = self.subplots[self.i]['axes']
|
|---|
| 722 | self.lines = self.subplots[self.i]['lines']
|
|---|
| 723 |
|
|---|
| 724 |
|
|---|
| 725 | def terminate(self):
|
|---|
| 726 | """
|
|---|
| 727 | Clear the figure.
|
|---|
| 728 | """
|
|---|
| 729 | self.window.destroy()
|
|---|
| 730 |
|
|---|
| 731 |
|
|---|
| 732 | def text(self, *args, **kwargs):
|
|---|
| 733 | """
|
|---|
| 734 | Add text to the figure.
|
|---|
| 735 | """
|
|---|
| 736 | self.figure.text(*args, **kwargs)
|
|---|
| 737 | self.show()
|
|---|
| 738 |
|
|---|
| 739 |
|
|---|
| 740 | def unmap(self):
|
|---|
| 741 | """
|
|---|
| 742 | Hide the ASAPlot graphics window.
|
|---|
| 743 | """
|
|---|
| 744 | self.window.wm_withdraw()
|
|---|
| 745 |
|
|---|
| 746 |
|
|---|
| 747 | def get_colour(colour='black'):
|
|---|
| 748 | """
|
|---|
| 749 | Look up a colour by name in the colour dictionary. Matches are
|
|---|
| 750 | case-insensitive, insensitive to blanks, and 'gray' matches 'grey'.
|
|---|
| 751 | """
|
|---|
| 752 |
|
|---|
| 753 | if colour is None: return None
|
|---|
| 754 |
|
|---|
| 755 | if match('[rgbcmykw]$', colour): return colour
|
|---|
| 756 | if match('#[\da-fA-F]{6}$', colour): return colour
|
|---|
| 757 |
|
|---|
| 758 | if len(colours) == 0: load_colours()
|
|---|
| 759 |
|
|---|
| 760 | # Try a quick match.
|
|---|
| 761 | if colours.has_key(colour): return colours[colour]
|
|---|
| 762 |
|
|---|
| 763 | colour = colour.replace(' ','').lower()
|
|---|
| 764 | colour = colour.replace('gray','grey')
|
|---|
| 765 | for name in colours.keys():
|
|---|
| 766 | if name.lower() == colour:
|
|---|
| 767 | return colours[name]
|
|---|
| 768 |
|
|---|
| 769 | return '#000000'
|
|---|
| 770 |
|
|---|
| 771 |
|
|---|
| 772 | def list_colours():
|
|---|
| 773 | """
|
|---|
| 774 | List the contents of the colour dictionary sorted by name.
|
|---|
| 775 | """
|
|---|
| 776 |
|
|---|
| 777 | if len(colours) == 0: load_colours()
|
|---|
| 778 |
|
|---|
| 779 | names = colours.keys()
|
|---|
| 780 | names.sort()
|
|---|
| 781 | for name in names:
|
|---|
| 782 | print colours[name], name
|
|---|
| 783 |
|
|---|
| 784 |
|
|---|
| 785 | def load_colours(filename='/usr/local/lib/rgb.txt'):
|
|---|
| 786 | """
|
|---|
| 787 | Load the colour dictionary from the specified file.
|
|---|
| 788 | """
|
|---|
| 789 | print 'Loading colour dictionary from', filename
|
|---|
| 790 | from os.path import expandvars
|
|---|
| 791 | filename = expandvars(filename)
|
|---|
| 792 | rgb = open(filename, 'r')
|
|---|
| 793 |
|
|---|
| 794 | while True:
|
|---|
| 795 | line = rgb.readline()
|
|---|
| 796 | if line == '': break
|
|---|
| 797 | tmp = line.split()
|
|---|
| 798 |
|
|---|
| 799 | if len(tmp) == 4:
|
|---|
| 800 | if tmp[3][:4] == 'gray': continue
|
|---|
| 801 | if tmp[3].lower().find('gray') != -1: continue
|
|---|
| 802 |
|
|---|
| 803 | name = tmp[3][0].upper() + tmp[3][1:]
|
|---|
| 804 | r, g, b = int(tmp[0]), int(tmp[1]), int(tmp[2])
|
|---|
| 805 | colours[name] = '#%2.2x%2.2x%2.2x' % (r, g, b)
|
|---|
