| [111] | 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 | print "Importing matplotlib with TkAgg backend."
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| 10 | import matplotlib
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| 11 | matplotlib.use("TkAgg")
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| 12 |
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| 13 | from matplotlib.backends import new_figure_manager, show
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| 14 | from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, \
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| [117] | 15 | FigureManagerTkAgg
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| [111] | 16 | from matplotlib.figure import Figure, Text
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| 17 |
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| 18 | # Force use of the newfangled toolbar.
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| 19 | matplotlib.rcParams['toolbar'] = 'toolbar2'
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| 20 |
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| 21 | # Colour dictionary.
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| 22 | colours = {}
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| 23 |
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| 24 | class ASAPlot:
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| 25 | """
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| 26 | ASAP plotting class based on matplotlib.
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| 27 | """
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| 28 |
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| [114] | 29 | def __init__(self, rowcol='11', title='', size=(8,6), buffering=False):
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| [117] | 30 | """
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| 31 | Create a new instance of the ASAPlot plotting class.
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| 32 | """
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| 33 | self.window = Tk.Tk()
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| 34 |
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| 35 | self.frame1 = Tk.Frame(self.window, relief=Tk.RIDGE, borderwidth=4)
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| 36 | self.frame1.pack(fill=Tk.BOTH)
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| [111] | 37 |
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| [117] | 38 | self.figure = Figure(figsize=size, facecolor='#ddddee')
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| 39 | self.canvas = FigureCanvasTkAgg(self.figure, master=self.frame1)
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| 40 | self.canvas.get_tk_widget().pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)
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| [111] | 41 |
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| [117] | 42 | # Simply instantiating this is enough to get a working toolbar.
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| 43 | self.figmgr = FigureManagerTkAgg(self.canvas, 1, self.window)
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| 44 | self.window.wm_title('ASAPlot graphics window')
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| [111] | 45 |
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| [117] | 46 | self.figure.text(0.5, 0.95, title, horizontalalignment='center')
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| [111] | 47 |
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| [117] | 48 | self.rows = int(rowcol[0])
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| 49 | self.cols = int(rowcol[1])
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| 50 | self.subplots = []
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| 51 | for i in range(0,self.rows*self.cols):
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| 52 | self.subplots.append({})
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| 53 | self.subplots[i]['axes'] = self.figure.add_subplot(self.rows,
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| 54 | self.cols, i+1)
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| 55 | self.subplots[i]['lines'] = []
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| [111] | 56 |
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| [117] | 57 | self.figmgr.toolbar.set_active([0])
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| [111] | 58 |
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| [117] | 59 | self.axes = self.subplots[0]['axes']
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| 60 | self.lines = self.subplots[0]['lines']
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| [111] | 61 |
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| 62 |
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| [117] | 63 | # Set matplotlib default colour sequence.
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| 64 | self.colours = [1, 'b', 'g', 'r', 'c', 'm', 'y', 'k', 'w']
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| 65 | self.attributes = {}
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| 66 | self.loc = 1
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| [111] | 67 |
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| [117] | 68 | matplotlib.interactive = True
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| 69 | self.buffering = buffering
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| [111] | 70 |
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| [117] | 71 | self.canvas.show()
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| [111] | 72 |
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| 73 |
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| [117] | 74 | def clear(self):
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| 75 | """
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| 76 | Delete all lines from the plot. Line numbering will restart from 1.
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| 77 | """
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| [111] | 78 |
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| [117] | 79 | for i in range(1,len(self.lines)+1):
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| 80 | self.delete(i)
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| [111] | 81 |
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| [117] | 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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| [111] | 86 |
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| 87 | def delete(self, numbers=None):
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| [117] | 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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| [111] | 92 |
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| [117] | 93 | if numbers is None: numbers = [len(self.lines)-1]
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| [111] | 94 |
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| [117] | 95 | if not hasattr(numbers, '__iter__'):
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| 96 | numbers = [numbers]
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| [111] | 97 |
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| [117] | 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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| [111] | 104 |
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| [117] | 105 | self.show()
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| [111] | 106 |
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| 107 |
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| 108 | def get_line(self):
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| [117] | 109 | """
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| 110 | Get the current default line attributes.
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| 111 | """
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| 112 | return self.attributes
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| [111] | 113 |
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| 114 |
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| 115 | def hold(self, hold=True):
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| [117] | 116 | """
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| 117 | Buffer graphics until subsequently released.
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| 118 | """
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| 119 | self.buffering = hold
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| [111] | 120 |
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| 121 |
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| 122 | def legend(self, loc=1):
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| [117] | 123 | """
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| 124 | Add a legend to the plot.
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| [111] | 125 |
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| [117] | 126 | Any other value for loc else disables the legend:
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| 127 | 1: upper right
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| 128 | 2: upper left
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| 129 | 3: lower left
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| 130 | 4: lower right
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| 131 | 5: right
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| 132 | 6: center left
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| 133 | 7: center right
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| 134 | 8: lower center
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| 135 | 9: upper center
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| 136 | 10: center
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| [111] | 137 |
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| [117] | 138 | """
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| 139 | if 1 > loc > 10: loc = 0
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| 140 | self.loc = loc
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| 141 | self.show()
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| [111] | 142 |
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| 143 |
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| 144 | def map(self):
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| [117] | 145 | """
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| 146 | Reveal the ASAPlot graphics window and bring it to the top of the
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| 147 | window stack.
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| 148 | """
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| 149 | self.window.wm_deiconify()
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| 150 | self.window.lift()
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| [111] | 151 |
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| [117] | 152 |
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| [111] | 153 | def palette(self, pen=None, colours=None):
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| [117] | 154 | """
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| 155 | Redefine the colour sequence.
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| [111] | 156 |
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| [117] | 157 | pen is the pen number to use for the next plot; this will be auto-
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| 158 | incremented.
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| [111] | 159 |
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| [117] | 160 | colours is the list of pen colours. Colour may be specified via
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| 161 | the single letter values understood by matplotlib:
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| [111] | 162 |
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| [117] | 163 | b: blue
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| 164 | g: green
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| 165 | r: red
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| 166 | c: cyan
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| 167 | m: magenta
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| 168 | y: yellow
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| 169 | k: black
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| 170 | w: white
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| [111] | 171 |
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| [117] | 172 | or via the full name as listed in the colour dictionary which is
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| 173 | loaded by default by load_colours() from rgb.txt and listed by
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| 174 | list_colours().
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| 175 | """
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| [111] | 176 |
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| [117] | 177 | if pen is None and colours is None:
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| 178 | self.colours = []
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| 179 | return
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| [111] | 180 |
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| [117] | 181 | if pen is None:
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| 182 | if not len(self.colours):
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| 183 | self.colours = [1]
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| 184 | else:
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| 185 | self.colours[0] = pen
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| [111] | 186 |
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| [117] | 187 | if colours is None:
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| 188 | return
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| [111] | 189 |
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| [117] | 190 | cols = []
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| 191 | for col in colours:
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| 192 | cols.append(get_colour(col))
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| [111] | 193 |
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| [117] | 194 | self.colours[1:] = cols
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| [111] | 195 |
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| [117] | 196 | if 0 > self.colours[0] > len(self.colours):
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| 197 | self.colours[0] = 1
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| [111] | 198 |
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| 199 |
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| 200 | def plot(self, x=None, y=None, mask=None, fmt=None, add=None):
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| [117] | 201 | """
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| 202 | Plot the next line in the current frame using the current line
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| 203 | attributes. The ASAPlot graphics window will be mapped and raised.
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| [111] | 204 |
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| [117] | 205 | The argument list works a bit like the matlab plot() function.
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| 206 | """
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| [111] | 207 |
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| [117] | 208 | if x is None:
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| 209 | if y is None: return
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| 210 | x = range(len(y))
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| [111] | 211 |
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| [117] | 212 | elif y is None:
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| 213 | y = x
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| 214 | x = range(len(y))
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| [111] | 215 |
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| [117] | 216 | if mask is None:
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| 217 | if fmt is None:
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| 218 | line = self.axes.plot(x, y)
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| 219 | else:
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| 220 | line = self.axes.plot(x, y, fmt)
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| 221 | else:
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| 222 | segments = []
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| [111] | 223 |
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| [117] | 224 | mask = list(mask)
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| 225 | i = 0
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| 226 | while mask[i:].count(1):
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| 227 | i += mask[i:].index(1)
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| 228 | if mask[i:].count(0):
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| 229 | j = i + mask[i:].index(0)
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| 230 | else:
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| 231 | j = len(mask)
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| [111] | 232 |
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| [117] | 233 | segments.append(x[i:j])
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| 234 | segments.append(y[i:j])
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| [111] | 235 |
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| [117] | 236 | i = j
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| [111] | 237 |
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| [117] | 238 | line = self.axes.plot(*segments)
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| [111] | 239 |
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| [117] | 240 | # Add to an existing line?
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| 241 | if add is None or len(self.lines) < add < 0:
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| 242 | self.lines.append(line)
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| 243 | i = len(self.lines) - 1
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| 244 | else:
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| 245 | if add == 0: add = len(self.lines)
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| 246 | i = add - 1
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| 247 | self.lines[i].extend(line)
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| [111] | 248 |
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| [117] | 249 | # Set/reset attributes for the line.
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| 250 | gotcolour = False
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| 251 | for k, v in self.attributes.iteritems():
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| 252 | if k == 'color': gotcolour = True
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| 253 | for segment in self.lines[i]:
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| 254 | getattr(segment, "set_%s"%k)(v)
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| [111] | 255 |
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| [117] | 256 | if not gotcolour and len(self.colours):
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| 257 | for segment in self.lines[i]:
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| 258 | getattr(segment, "set_color")(self.colours[self.colours[0]])
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| [111] | 259 |
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| [117] | 260 | self.colours[0] += 1
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| 261 | if self.colours[0] >= len(self.colours):
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| 262 | self.colours[0] = 1
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| [111] | 263 |
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| [117] | 264 | self.show()
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| [111] | 265 |
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| 266 |
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| 267 | def quit(self):
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| [117] | 268 | """
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| 269 | Destroy the ASAPlot graphics window.
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| 270 | """
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| 271 | self.window.destroy()
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| [111] | 272 |
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| 273 |
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| 274 | def release(self):
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| [117] | 275 | """
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| 276 | Release buffered graphics.
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| 277 | """
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| 278 | self.buffering = False
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| 279 | self.show()
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| [111] | 280 |
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| 281 |
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| 282 | def set_axes(self, what=None, *args, **kwargs):
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| [117] | 283 | """
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| 284 | Set attributes for the axes by calling the relevant Axes.set_*()
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| 285 | method. Colour translation is done as described in the doctext
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| 286 | for palette().
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| 287 | """
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| [111] | 288 |
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| [117] | 289 | if what is None: return
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| 290 | if what[-6:] == 'colour': what = what[:-6] + 'color'
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| [111] | 291 |
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| [117] | 292 | newargs = {}
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| 293 | for k, v in kwargs.iteritems():
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| 294 | k = k.lower()
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| 295 | if k == 'colour': k = 'color'
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| [111] | 296 |
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| [117] | 297 | if k == 'color':
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| 298 | v = get_colour(v)
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| [111] | 299 |
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| [117] | 300 | newargs[k] = v
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| [111] | 301 |
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| [117] | 302 | getattr(self.axes, "set_%s"%what)(*args, **newargs)
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| 303 | self.show()
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| [111] | 304 |
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| 305 |
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| 306 | def set_figure(self, what=None, *args, **kwargs):
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| [117] | 307 | """
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| 308 | Set attributes for the figure by calling the relevant Figure.set_*()
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| 309 | method. Colour translation is done as described in the doctext
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| 310 | for palette().
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| 311 | """
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| [111] | 312 |
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| [117] | 313 | if what is None: return
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| 314 | if what[-6:] == 'colour': what = what[:-6] + 'color'
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| 315 | if what[-5:] == 'color' and len(args):
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| 316 | args = (get_colour(args[0]),)
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| [111] | 317 |
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| [117] | 318 | newargs = {}
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| 319 | for k, v in kwargs.iteritems():
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| 320 | k = k.lower()
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| 321 | if k == 'colour': k = 'color'
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| [111] | 322 |
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| [117] | 323 | if k == 'color':
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| 324 | v = get_colour(v)
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| [111] | 325 |
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| [117] | 326 | newargs[k] = v
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| [111] | 327 |
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| [117] | 328 | getattr(self.figure, "set_%s"%what)(*args, **newargs)
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| 329 | self.show()
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| [111] | 330 |
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| 331 |
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| 332 | def set_line(self, number=None, **kwargs):
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| [117] | 333 | """
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| 334 | Set attributes for the specified line, or else the next line(s)
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| 335 | to be plotted.
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| [111] | 336 |
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| [117] | 337 | number is the 0-relative number of a line that has already been
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| 338 | plotted. If no such line exists, attributes are recorded and used
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| 339 | for the next line(s) to be plotted.
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| [111] | 340 |
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| [117] | 341 | Keyword arguments specify Line2D attributes, e.g. color='r'. Do
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| [111] | 342 |
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| [117] | 343 | import matplotlib
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| 344 | help(matplotlib.lines)
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| [111] | 345 |
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| [117] | 346 | The set_* methods of class Line2D define the attribute names and
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| 347 | values. For non-US usage, "colour" is recognized as synonymous with
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| 348 | "color".
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| [111] | 349 |
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| [117] | 350 | Set the value to None to delete an attribute.
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| [111] | 351 |
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| [117] | 352 | Colour translation is done as described in the doctext for palette().
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| 353 | """
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| [111] | 354 |
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| [117] | 355 | redraw = False
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| 356 | for k, v in kwargs.iteritems():
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| 357 | k = k.lower()
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| 358 | if k == 'colour': k = 'color'
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| [111] | 359 |
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| [117] | 360 | if k == 'color':
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| 361 | v = get_colour(v)
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| [111] | 362 |
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| [117] | 363 | if 0 <= number < len(self.lines):
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| 364 | if self.lines[number] is not None:
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| 365 | for line in self.lines[number]:
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| 366 | getattr(line, "set_%s"%k)(v)
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| 367 | redraw = True
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| 368 | else:
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| 369 | if v is None:
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| 370 | del self.attributes[k]
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| 371 | else:
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| 372 | self.attributes[k] = v
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| [111] | 373 |
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| [117] | 374 | if redraw: self.show()
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| [111] | 375 |
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| 376 |
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| 377 | def show(self):
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| [117] | 378 | """
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| 379 | Show graphics dependent on the current buffering state.
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| 380 | """
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| 381 | if not self.buffering:
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| 382 | if self.loc:
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| 383 | lines = []
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| 384 | labels = []
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| 385 | i = 0
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| 386 | for line in self.lines:
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| 387 | i += 1
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| 388 | if line is not None:
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| 389 | lines.append(line[0])
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| 390 | lbl = line[0].get_label()
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| 391 | if lbl == '':
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| 392 | lbl = str(i)
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| 393 | labels.append(lbl)
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| [111] | 394 |
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| [117] | 395 | if len(lines):
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| 396 | self.axes.legend(tuple(lines), tuple(labels), self.loc)
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| 397 | else:
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| 398 | self.axes.legend((' '))
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| [111] | 399 |
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| [117] | 400 | self.window.wm_deiconify()
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| 401 | self.canvas.show()
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| [111] | 402 |
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| 403 |
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| [117] | 404 | def subplot(self, col=0, row=0):
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| 405 | """
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| 406 | Set the subplot; 0-relative column and row numbers. Overrange column
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| 407 | numbers map onto successive rows.
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| 408 | """
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| 409 | i = (self.cols*row + col)%(self.rows*self.cols)
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| 410 | self.axes = self.subplots[i]['axes']
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| 411 | self.lines = self.subplots[i]['lines']
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| [111] | 412 |
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| [117] | 413 |
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| [111] | 414 | def terminate(self):
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| [117] | 415 | """
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| 416 | Clear the figure.
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| 417 | """
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| 418 | self.window.destroy()
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| [111] | 419 |
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| 420 |
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| 421 | def text(self, *args, **kwargs):
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| [117] | 422 | """
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| 423 | Add text to the figure.
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| 424 | """
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| 425 | self.figure.text(*args, **kwargs)
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| 426 | self.show()
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| [111] | 427 |
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| 428 |
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| 429 | def unmap(self):
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| [117] | 430 | """
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| 431 | Hide the ASAPlot graphics window.
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| 432 | """
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| 433 | self.window.wm_withdraw()
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| [111] | 434 |
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| 435 |
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| 436 | def get_colour(colour='black'):
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| 437 | """
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| 438 | Look up a colour by name in the colour dictionary. Matches are
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| 439 | case-insensitive, insensitive to blanks, and 'gray' matches 'grey'.
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| 440 | """
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| 441 |
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| 442 | if colour is None: return None
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| 443 |
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| 444 | if match('[rgbcmykw]$', colour): return colour
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| 445 | if match('#[\da-fA-F]{6}$', colour): return colour
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| 446 |
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| 447 | if len(colours) == 0: load_colours()
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| 448 |
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| 449 | # Try a quick match.
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| 450 | if colours.has_key(colour): return colours[colour]
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| 451 |
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| 452 | colour = colour.replace(' ','').lower()
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| 453 | colour = colour.replace('gray','grey')
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| 454 | for name in colours.keys():
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| [117] | 455 | if name.lower() == colour:
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| 456 | return colours[name]
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| [111] | 457 |
|
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| 458 | return '#000000'
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| 459 |
|
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| 460 |
|
|---|
| 461 | def list_colours():
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| 462 | """
|
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| 463 | List the contents of the colour dictionary sorted by name.
|
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| 464 | """
|
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| 465 |
|
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| 466 | if len(colours) == 0: load_colours()
|
|---|
| 467 |
|
|---|
| 468 | names = colours.keys()
|
|---|
| 469 | names.sort()
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|---|
| 470 | for name in names:
|
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| [117] | 471 | print colours[name], name
|
|---|
| [111] | 472 |
|
|---|
| 473 |
|
|---|
| 474 | def load_colours(file='/usr/local/lib/rgb.txt'):
|
|---|
| 475 | """
|
|---|
| 476 | Load the colour dictionary from the specified file.
|
|---|
| 477 | """
|
|---|
| 478 | print 'Loading colour dictionary from', file
|
|---|
| 479 | rgb = open(file, 'r')
|
|---|
| 480 |
|
|---|
| 481 | while True:
|
|---|
| [117] | 482 | line = rgb.readline()
|
|---|
| 483 | if line == '': break
|
|---|
| 484 | tmp = line.split()
|
|---|
| [111] | 485 |
|
|---|
| [117] | 486 | if len(tmp) == 4:
|
|---|
| 487 | if tmp[3][:4] == 'gray': continue
|
|---|
| 488 | if tmp[3].lower().find('gray') != -1: continue
|
|---|
| [111] | 489 |
|
|---|
| [117] | 490 | name = tmp[3][0].upper() + tmp[3][1:]
|
|---|
| 491 | r, g, b = int(tmp[0]), int(tmp[1]), int(tmp[2])
|
|---|
| 492 | colours[name] = '#%2.2x%2.2x%2.2x' % (r, g, b)
|
|---|
