[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 | 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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[117] | 14 | FigureManagerTkAgg |
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[111] | 15 | from matplotlib.figure import Figure, Text |
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[491] | 16 | from matplotlib.font_manager import FontProperties |
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[118] | 17 | from matplotlib.numerix import sqrt |
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[482] | 18 | from matplotlib import rc, rcParams |
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[693] | 19 | from asap import rcParams as asaprcParams |
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[111] | 20 | |
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| 21 | # Force use of the newfangled toolbar. |
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| 22 | matplotlib.rcParams['toolbar'] = 'toolbar2' |
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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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[482] | 29 | def __init__(self, rows=1, cols=0, 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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[119] | 32 | |
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| 33 | If rows < 1 then a separate call to set_panels() is required to define |
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| 34 | the panel layout; refer to the doctext for set_panels(). |
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[117] | 35 | """ |
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| 36 | self.window = Tk.Tk() |
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[482] | 37 | self.is_dead = False |
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| 38 | def dest_callback(): |
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| 39 | self.is_dead = True |
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| 40 | self.window.destroy() |
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[111] | 41 | |
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[482] | 42 | self.window.protocol("WM_DELETE_WINDOW", dest_callback) |
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| 43 | |
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| 44 | self.figure = Figure(figsize=size, facecolor='#ddddee') |
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[202] | 45 | self.canvas = FigureCanvasTkAgg(self.figure, master=self.window) |
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[117] | 46 | self.canvas.get_tk_widget().pack(side=Tk.TOP, fill=Tk.BOTH, expand=1) |
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[111] | 47 | |
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[117] | 48 | # Simply instantiating this is enough to get a working toolbar. |
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| 49 | self.figmgr = FigureManagerTkAgg(self.canvas, 1, self.window) |
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| 50 | self.window.wm_title('ASAPlot graphics window') |
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[111] | 51 | |
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[120] | 52 | self.events = {'button_press':None, |
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| 53 | 'button_release':None, |
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| 54 | 'motion_notify':None} |
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| 55 | |
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[118] | 56 | self.set_title(title) |
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[117] | 57 | self.subplots = [] |
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[118] | 58 | if rows > 0: |
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| 59 | self.set_panels(rows, cols) |
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[111] | 60 | |
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[693] | 61 | # Set matplotlib default colour sequence. |
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| 62 | self.colormap = "green red black cyan magenta orange blue purple yellow pink".split() |
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| 63 | |
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| 64 | c = asaprcParams['plotter.colours'] |
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| 65 | if isinstance(c,str) and len(c) > 0: |
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| 66 | self.colormap = c.split() |
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[111] | 67 | |
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[693] | 68 | self.lsalias = {"line": [1,0], |
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| 69 | "dashdot": [4,2,1,2], |
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| 70 | "dashed" : [4,2,4,2], |
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| 71 | "dotted" : [1,2], |
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| 72 | "dashdotdot": [4,2,1,2,1,2], |
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| 73 | "dashdashdot": [4,2,4,2,1,2] |
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| 74 | } |
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| 75 | |
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| 76 | styles = "line dashed dotted dashdot".split() |
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| 77 | c = asaprcParams['plotter.linestyles'] |
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| 78 | if isinstance(c,str) and len(c) > 0: |
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| 79 | styles = c.split() |
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| 80 | s = [] |
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| 81 | for ls in styles: |
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| 82 | if self.lsalias.has_key(ls): |
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| 83 | s.append(self.lsalias.get(ls)) |
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| 84 | else: |
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| 85 | s.append('-') |
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| 86 | self.linestyles = s |
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| 87 | |
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[652] | 88 | self.color = 0; |
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[693] | 89 | self.linestyle = 0; |
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[117] | 90 | self.attributes = {} |
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[620] | 91 | self.loc = 0 |
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[111] | 92 | |
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[117] | 93 | matplotlib.interactive = True |
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| 94 | self.buffering = buffering |
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[482] | 95 | |
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[117] | 96 | self.canvas.show() |
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[111] | 97 | |
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| 98 | |
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[117] | 99 | def clear(self): |
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| 100 | """ |
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| 101 | Delete all lines from the plot. Line numbering will restart from 1. |
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| 102 | """ |
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[111] | 103 | |
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[652] | 104 | for i in range(len(self.lines)): |
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[117] | 105 | self.delete(i) |
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| 106 | self.axes.clear() |
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[652] | 107 | self.color = 0 |
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[693] | 108 | self.linestyle = 0 |
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[117] | 109 | self.lines = [] |
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[111] | 110 | |
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[693] | 111 | def palette(self, color, colormap=None, linestyle=0, linestyles=None): |
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[652] | 112 | if colormap: |
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[693] | 113 | if isinstance(colormap,list): |
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| 114 | self.colormap = colormap |
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| 115 | elif isinstance(colormap,str): |
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| 116 | self.colormap = colormap.split() |
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[652] | 117 | if 0 <= color < len(self.colormap): |
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| 118 | self.color = color |
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[693] | 119 | if linestyles: |
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| 120 | self.linestyles = [] |
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| 121 | if isinstance(linestyles,list): |
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| 122 | styles = linestyles |
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| 123 | elif isinstance(linestyles,str): |
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| 124 | styles = linestyles.split() |
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| 125 | for ls in styles: |
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| 126 | if self.lsalias.has_key(ls): |
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| 127 | self.linestyles.append(self.lsalias.get(ls)) |
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| 128 | else: |
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| 129 | self.linestyles.append(self.lsalias.get('line')) |
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| 130 | if 0 <= linestyle < len(self.linestyles): |
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| 131 | self.linestyle = linestyle |
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[652] | 132 | |
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[111] | 133 | def delete(self, numbers=None): |
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[117] | 134 | """ |
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| 135 | Delete the 0-relative line number, default is to delete the last. |
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| 136 | The remaining lines are NOT renumbered. |
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| 137 | """ |
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[111] | 138 | |
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[117] | 139 | if numbers is None: numbers = [len(self.lines)-1] |
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[111] | 140 | |
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[117] | 141 | if not hasattr(numbers, '__iter__'): |
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| 142 | numbers = [numbers] |
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[111] | 143 | |
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[117] | 144 | for number in numbers: |
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| 145 | if 0 <= number < len(self.lines): |
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| 146 | if self.lines[number] is not None: |
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| 147 | for line in self.lines[number]: |
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| 148 | line.set_linestyle('None') |
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| 149 | self.lines[number] = None |
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[620] | 150 | self.show() |
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[111] | 151 | |
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| 152 | def get_line(self): |
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[117] | 153 | """ |
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| 154 | Get the current default line attributes. |
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| 155 | """ |
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| 156 | return self.attributes |
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[111] | 157 | |
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| 158 | |
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[119] | 159 | def hist(self, x=None, y=None, fmt=None): |
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| 160 | """ |
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| 161 | Plot a histogram. N.B. the x values refer to the start of the |
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| 162 | histogram bin. |
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| 163 | |
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| 164 | fmt is the line style as in plot(). |
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| 165 | """ |
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| 166 | |
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| 167 | if x is None: |
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| 168 | if y is None: return |
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| 169 | x = range(0,len(y)) |
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| 170 | |
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| 171 | if len(x) != len(y): |
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| 172 | return |
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| 173 | |
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| 174 | l2 = 2*len(x) |
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| 175 | x2 = range(0,l2) |
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| 176 | y2 = range(0,l2) |
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| 177 | |
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| 178 | for i in range(0,l2): |
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| 179 | x2[i] = x[i/2] |
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| 180 | |
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| 181 | y2[0] = 0 |
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| 182 | for i in range(1,l2): |
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| 183 | y2[i] = y[(i-1)/2] |
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| 184 | |
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| 185 | self.plot(x2, y2, fmt) |
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| 186 | |
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| 187 | |
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[111] | 188 | def hold(self, hold=True): |
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[117] | 189 | """ |
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| 190 | Buffer graphics until subsequently released. |
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| 191 | """ |
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| 192 | self.buffering = hold |
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[111] | 193 | |
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| 194 | |
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[620] | 195 | def legend(self, loc=None): |
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[117] | 196 | """ |
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| 197 | Add a legend to the plot. |
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[111] | 198 | |
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[117] | 199 | Any other value for loc else disables the legend: |
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| 200 | 1: upper right |
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| 201 | 2: upper left |
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| 202 | 3: lower left |
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| 203 | 4: lower right |
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| 204 | 5: right |
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| 205 | 6: center left |
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| 206 | 7: center right |
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| 207 | 8: lower center |
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| 208 | 9: upper center |
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| 209 | 10: center |
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[111] | 210 | |
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[117] | 211 | """ |
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[620] | 212 | if isinstance(loc,int): |
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| 213 | if 0 > loc > 10: loc = 0 |
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| 214 | self.loc = loc |
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[117] | 215 | self.show() |
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[111] | 216 | |
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| 217 | |
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| 218 | def map(self): |
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[117] | 219 | """ |
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| 220 | Reveal the ASAPlot graphics window and bring it to the top of the |
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| 221 | window stack. |
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| 222 | """ |
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| 223 | self.window.wm_deiconify() |
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| 224 | self.window.lift() |
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[111] | 225 | |
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[117] | 226 | |
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[111] | 227 | |
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| 228 | def plot(self, x=None, y=None, mask=None, fmt=None, add=None): |
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[117] | 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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[111] | 232 | |
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[117] | 233 | The argument list works a bit like the matlab plot() function. |
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| 234 | """ |
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[111] | 235 | |
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[117] | 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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[111] | 239 | |
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[117] | 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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[111] | 243 | |
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[117] | 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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[111] | 251 | |
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[117] | 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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[111] | 260 | |
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[117] | 261 | segments.append(x[i:j]) |
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| 262 | segments.append(y[i:j]) |
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[111] | 263 | |
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[117] | 264 | i = j |
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[111] | 265 | |
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[117] | 266 | line = self.axes.plot(*segments) |
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[111] | 267 | |
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[117] | 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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[119] | 270 | # Don't add. |
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[117] | 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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[111] | 277 | |
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[117] | 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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[111] | 284 | |
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[652] | 285 | if not gotcolour and len(self.colormap): |
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[117] | 286 | for segment in self.lines[i]: |
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[652] | 287 | getattr(segment, "set_color")(self.colormap[self.color]) |
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[693] | 288 | if len(self.colormap) == 1: |
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| 289 | getattr(segment, "set_dashes")(self.linestyles[self.linestyle]) |
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[652] | 290 | self.color += 1 |
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| 291 | if self.color >= len(self.colormap): |
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| 292 | self.color = 0 |
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[111] | 293 | |
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[693] | 294 | if len(self.colormap) == 1: |
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| 295 | self.linestyle += 1 |
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| 296 | if self.linestyle >= len(self.linestyles): |
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| 297 | self.linestyle = 0 |
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| 298 | |
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[117] | 299 | self.show() |
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[111] | 300 | |
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| 301 | |
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[482] | 302 | def position(self): |
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| 303 | """ |
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| 304 | Use the mouse to get a position from a graph. |
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| 305 | """ |
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| 306 | |
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| 307 | def position_disable(event): |
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| 308 | self.register('button_press', None) |
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| 309 | print '%.4f, %.4f' % (event.xdata, event.ydata) |
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| 310 | |
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| 311 | print 'Press any mouse button...' |
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| 312 | self.register('button_press', position_disable) |
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| 313 | |
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| 314 | |
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[111] | 315 | def quit(self): |
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[117] | 316 | """ |
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| 317 | Destroy the ASAPlot graphics window. |
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| 318 | """ |
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| 319 | self.window.destroy() |
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[111] | 320 | |
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| 321 | |
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[482] | 322 | def region(self): |
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| 323 | """ |
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| 324 | Use the mouse to get a rectangular region from a plot. |
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| 325 | |
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| 326 | The return value is [x0, y0, x1, y1] in world coordinates. |
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| 327 | """ |
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| 328 | |
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| 329 | def region_start(event): |
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| 330 | height = self.canvas.figure.bbox.height() |
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| 331 | self.rect = {'fig': None, 'height': height, |
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| 332 | 'x': event.x, 'y': height - event.y, |
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| 333 | 'world': [event.xdata, event.ydata, |
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| 334 | event.xdata, event.ydata]} |
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| 335 | self.register('button_press', None) |
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| 336 | self.register('motion_notify', region_draw) |
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| 337 | self.register('button_release', region_disable) |
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| 338 | |
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| 339 | def region_draw(event): |
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| 340 | self.canvas._tkcanvas.delete(self.rect['fig']) |
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| 341 | self.rect['fig'] = self.canvas._tkcanvas.create_rectangle( |
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| 342 | self.rect['x'], self.rect['y'], |
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| 343 | event.x, self.rect['height'] - event.y) |
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| 344 | |
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| 345 | def region_disable(event): |
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| 346 | self.register('motion_notify', None) |
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| 347 | self.register('button_release', None) |
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| 348 | |
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| 349 | self.canvas._tkcanvas.delete(self.rect['fig']) |
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| 350 | |
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| 351 | self.rect['world'][2:4] = [event.xdata, event.ydata] |
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| 352 | print '(%.2f, %.2f) (%.2f, %.2f)' % (self.rect['world'][0], |
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| 353 | self.rect['world'][1], self.rect['world'][2], |
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| 354 | self.rect['world'][3]) |
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| 355 | |
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| 356 | self.register('button_press', region_start) |
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| 357 | |
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| 358 | # This has to be modified to block and return the result (currently |
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| 359 | # printed by region_disable) when that becomes possible in matplotlib. |
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| 360 | |
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| 361 | return [0.0, 0.0, 0.0, 0.0] |
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| 362 | |
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| 363 | |
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[120] | 364 | def register(self, type=None, func=None): |
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| 365 | """ |
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| 366 | Register, reregister, or deregister events of type 'button_press', |
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| 367 | 'button_release', or 'motion_notify'. |
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[482] | 368 | |
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[120] | 369 | The specified callback function should have the following signature: |
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| 370 | |
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| 371 | def func(event) |
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| 372 | |
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| 373 | where event is an MplEvent instance containing the following data: |
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| 374 | |
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| 375 | name # Event name. |
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| 376 | canvas # FigureCanvas instance generating the event. |
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| 377 | x = None # x position - pixels from left of canvas. |
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| 378 | y = None # y position - pixels from bottom of canvas. |
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| 379 | button = None # Button pressed: None, 1, 2, 3. |
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| 380 | key = None # Key pressed: None, chr(range(255)), shift, |
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| 381 | win, or control |
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| 382 | inaxes = None # Axes instance if cursor within axes. |
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| 383 | xdata = None # x world coordinate. |
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| 384 | ydata = None # y world coordinate. |
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| 385 | |
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| 386 | For example: |
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| 387 | |
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| 388 | def mouse_move(event): |
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| 389 | print event.xdata, event.ydata |
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| 390 | |
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| 391 | a = asaplot() |
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| 392 | a.register('motion_notify', mouse_move) |
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| 393 | |
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| 394 | If func is None, the event is deregistered. |
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| 395 | |
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| 396 | Note that in TkAgg keyboard button presses don't generate an event. |
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| 397 | """ |
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| 398 | |
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| 399 | if not self.events.has_key(type): return |
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| 400 | |
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| 401 | if func is None: |
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| 402 | if self.events[type] is not None: |
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| 403 | # It's not clear that this does anything. |
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| 404 | self.canvas.mpl_disconnect(self.events[type]) |
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| 405 | self.events[type] = None |
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| 406 | |
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| 407 | # It seems to be necessary to return events to the toolbar. |
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| 408 | if type == 'motion_notify': |
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| 409 | self.canvas.mpl_connect(type + '_event', |
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| 410 | self.figmgr.toolbar.mouse_move) |
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| 411 | elif type == 'button_press': |
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| 412 | self.canvas.mpl_connect(type + '_event', |
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| 413 | self.figmgr.toolbar.press) |
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| 414 | elif type == 'button_release': |
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| 415 | self.canvas.mpl_connect(type + '_event', |
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| 416 | self.figmgr.toolbar.release) |
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| 417 | |
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| 418 | else: |
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| 419 | self.events[type] = self.canvas.mpl_connect(type + '_event', func) |
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| 420 | |
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| 421 | |
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[111] | 422 | def release(self): |
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[117] | 423 | """ |
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| 424 | Release buffered graphics. |
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| 425 | """ |
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| 426 | self.buffering = False |
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| 427 | self.show() |
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[111] | 428 | |
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| 429 | |
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[671] | 430 | def save(self, fname=None, orientation=None): |
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[482] | 431 | """ |
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| 432 | Save the plot to a file. |
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| 433 | |
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| 434 | fname is the name of the output file. The image format is determined |
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| 435 | from the file suffix; 'png', 'ps', and 'eps' are recognized. If no |
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| 436 | file name is specified 'yyyymmdd_hhmmss.png' is created in the current |
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| 437 | directory. |
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| 438 | """ |
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| 439 | if fname is None: |
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| 440 | from datetime import datetime |
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| 441 | dstr = datetime.now().strftime('%Y%m%d_%H%M%S') |
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| 442 | fname = 'asap'+dstr+'.png' |
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| 443 | |
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| 444 | d = ['png','.ps','eps'] |
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| 445 | |
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| 446 | from os.path import expandvars |
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| 447 | fname = expandvars(fname) |
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| 448 | |
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| 449 | if fname[-3:].lower() in d: |
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| 450 | try: |
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[671] | 451 | if fname[-3:].lower() == ".ps": |
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| 452 | w = self.figure.figwidth.get() |
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| 453 | h = self.figure.figheight.get() |
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| 454 | a4w = 8.25 |
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| 455 | a4h = 11.25 |
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| 456 | |
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| 457 | if orientation is None: |
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| 458 | # auto oriented |
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| 459 | if w > h: |
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| 460 | orientation = 'landscape' |
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| 461 | else: |
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| 462 | orientation = 'portrait' |
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| 463 | ds = None |
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| 464 | if orientation == 'landscape': |
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| 465 | ds = min(a4h/w,a4w/h) |
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| 466 | #self.figure.set_figsize_inches((a4h,a4w)) |
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| 467 | else: |
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| 468 | ds = min(a4w/w,a4h/h) |
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| 469 | ow = ds * w |
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| 470 | oh = ds * h |
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| 471 | self.figure.set_figsize_inches((ow,oh)) |
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| 472 | self.canvas.print_figure(fname,orientation=orientation) |
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| 473 | print 'Written file %s' % (fname) |
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| 474 | else: |
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| 475 | self.canvas.print_figure(fname) |
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| 476 | print 'Written file %s' % (fname) |
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[482] | 477 | except IOError, msg: |
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| 478 | print 'Failed to save %s: Error msg was\n\n%s' % (fname, err) |
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| 479 | return |
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| 480 | else: |
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| 481 | print "Invalid image type. Valid types are:" |
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[671] | 482 | print "'ps', 'eps', 'png'" |
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[482] | 483 | |
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| 484 | |
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[111] | 485 | def set_axes(self, what=None, *args, **kwargs): |
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[117] | 486 | """ |
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| 487 | Set attributes for the axes by calling the relevant Axes.set_*() |
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| 488 | method. Colour translation is done as described in the doctext |
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| 489 | for palette(). |
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| 490 | """ |
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[111] | 491 | |
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[117] | 492 | if what is None: return |
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| 493 | if what[-6:] == 'colour': what = what[:-6] + 'color' |
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[111] | 494 | |
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[117] | 495 | newargs = {} |
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[652] | 496 | |
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[117] | 497 | for k, v in kwargs.iteritems(): |
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| 498 | k = k.lower() |
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| 499 | if k == 'colour': k = 'color' |
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| 500 | newargs[k] = v |
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[111] | 501 | |
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[117] | 502 | getattr(self.axes, "set_%s"%what)(*args, **newargs) |
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| 503 | self.show() |
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[111] | 504 | |
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| 505 | |
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| 506 | def set_figure(self, what=None, *args, **kwargs): |
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[117] | 507 | """ |
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| 508 | Set attributes for the figure by calling the relevant Figure.set_*() |
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| 509 | method. Colour translation is done as described in the doctext |
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| 510 | for palette(). |
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| 511 | """ |
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[111] | 512 | |
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[117] | 513 | if what is None: return |
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| 514 | if what[-6:] == 'colour': what = what[:-6] + 'color' |
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[652] | 515 | #if what[-5:] == 'color' and len(args): |
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| 516 | # args = (get_colour(args[0]),) |
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[111] | 517 | |
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[117] | 518 | newargs = {} |
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| 519 | for k, v in kwargs.iteritems(): |
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| 520 | k = k.lower() |
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| 521 | if k == 'colour': k = 'color' |
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| 522 | newargs[k] = v |
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[111] | 523 | |
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[117] | 524 | getattr(self.figure, "set_%s"%what)(*args, **newargs) |
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| 525 | self.show() |
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[111] | 526 | |
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| 527 | |
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[482] | 528 | def set_limits(self, xlim=None, ylim=None): |
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| 529 | """ |
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| 530 | Set x-, and y-limits for each subplot. |
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| 531 | |
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| 532 | xlim = [xmin, xmax] as in axes.set_xlim(). |
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| 533 | ylim = [ymin, ymax] as in axes.set_ylim(). |
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| 534 | """ |
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| 535 | for s in self.subplots: |
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| 536 | self.axes = s['axes'] |
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| 537 | self.lines = s['lines'] |
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[620] | 538 | oldxlim = list(self.axes.get_xlim()) |
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| 539 | oldylim = list(self.axes.get_ylim()) |
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| 540 | if xlim is not None: |
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| 541 | for i in range(len(xlim)): |
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| 542 | if xlim[i] is not None: |
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| 543 | oldxlim[i] = xlim[i] |
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| 544 | if ylim is not None: |
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| 545 | for i in range(len(ylim)): |
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| 546 | if ylim[i] is not None: |
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| 547 | oldylim[i] = ylim[i] |
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| 548 | self.axes.set_xlim(oldxlim) |
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| 549 | self.axes.set_ylim(oldylim) |
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| 550 | return |
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[482] | 551 | |
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| 552 | |
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[111] | 553 | def set_line(self, number=None, **kwargs): |
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[117] | 554 | """ |
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| 555 | Set attributes for the specified line, or else the next line(s) |
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| 556 | to be plotted. |
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[111] | 557 | |
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[117] | 558 | number is the 0-relative number of a line that has already been |
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| 559 | plotted. If no such line exists, attributes are recorded and used |
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| 560 | for the next line(s) to be plotted. |
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[111] | 561 | |
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[117] | 562 | Keyword arguments specify Line2D attributes, e.g. color='r'. Do |
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[111] | 563 | |
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[117] | 564 | import matplotlib |
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| 565 | help(matplotlib.lines) |
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[111] | 566 | |
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[117] | 567 | The set_* methods of class Line2D define the attribute names and |
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| 568 | values. For non-US usage, "colour" is recognized as synonymous with |
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| 569 | "color". |
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[111] | 570 | |
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[117] | 571 | Set the value to None to delete an attribute. |
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[111] | 572 | |
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[117] | 573 | Colour translation is done as described in the doctext for palette(). |
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| 574 | """ |
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[111] | 575 | |
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[117] | 576 | redraw = False |
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| 577 | for k, v in kwargs.iteritems(): |
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| 578 | k = k.lower() |
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| 579 | if k == 'colour': k = 'color' |
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[111] | 580 | |
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[117] | 581 | if 0 <= number < len(self.lines): |
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| 582 | if self.lines[number] is not None: |
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| 583 | for line in self.lines[number]: |
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| 584 | getattr(line, "set_%s"%k)(v) |
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| 585 | redraw = True |
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| 586 | else: |
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| 587 | if v is None: |
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| 588 | del self.attributes[k] |
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| 589 | else: |
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| 590 | self.attributes[k] = v |
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[111] | 591 | |
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[117] | 592 | if redraw: self.show() |
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[111] | 593 | |
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| 594 | |
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[620] | 595 | def set_panels(self, rows=1, cols=0, n=-1, nplots=-1, ganged=True): |
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[118] | 596 | """ |
---|
| 597 | Set the panel layout. |
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[482] | 598 | |
---|
[118] | 599 | rows and cols, if cols != 0, specify the number of rows and columns in |
---|
| 600 | a regular layout. (Indexing of these panels in matplotlib is row- |
---|
| 601 | major, i.e. column varies fastest.) |
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| 602 | |
---|
| 603 | cols == 0 is interpreted as a retangular layout that accomodates |
---|
| 604 | 'rows' panels, e.g. rows == 6, cols == 0 is equivalent to |
---|
| 605 | rows == 2, cols == 3. |
---|
| 606 | |
---|
| 607 | 0 <= n < rows*cols is interpreted as the 0-relative panel number in |
---|
| 608 | the configuration specified by rows and cols to be added to the |
---|
| 609 | current figure as its next 0-relative panel number (i). This allows |
---|
| 610 | non-regular panel layouts to be constructed via multiple calls. Any |
---|
| 611 | other value of n clears the plot and produces a rectangular array of |
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[482] | 612 | empty panels. The number of these may be limited by nplots. |
---|
[118] | 613 | """ |
---|
| 614 | if n < 0 and len(self.subplots): |
---|
| 615 | self.figure.clear() |
---|
| 616 | self.set_title() |
---|
| 617 | |
---|
[482] | 618 | if rows < 1: rows = 1 |
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| 619 | |
---|
| 620 | if cols <= 0: |
---|
[118] | 621 | i = int(sqrt(rows)) |
---|
| 622 | if i*i < rows: i += 1 |
---|
| 623 | cols = i |
---|
| 624 | |
---|
| 625 | if i*(i-1) >= rows: i -= 1 |
---|
| 626 | rows = i |
---|
[482] | 627 | |
---|
[118] | 628 | if 0 <= n < rows*cols: |
---|
| 629 | i = len(self.subplots) |
---|
| 630 | self.subplots.append({}) |
---|
[482] | 631 | |
---|
[118] | 632 | self.subplots[i]['axes'] = self.figure.add_subplot(rows, |
---|
| 633 | cols, n+1) |
---|
| 634 | self.subplots[i]['lines'] = [] |
---|
| 635 | |
---|
[119] | 636 | if i == 0: self.subplot(0) |
---|
[118] | 637 | |
---|
[482] | 638 | self.rows = 0 |
---|
| 639 | self.cols = 0 |
---|
| 640 | |
---|
[118] | 641 | else: |
---|
| 642 | self.subplots = [] |
---|
[482] | 643 | |
---|
| 644 | if nplots < 1 or rows*cols < nplots: |
---|
| 645 | nplots = rows*cols |
---|
| 646 | |
---|
| 647 | for i in range(nplots): |
---|
[118] | 648 | self.subplots.append({}) |
---|
[482] | 649 | |
---|
[118] | 650 | self.subplots[i]['axes'] = self.figure.add_subplot(rows, |
---|
| 651 | cols, i+1) |
---|
| 652 | self.subplots[i]['lines'] = [] |
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[620] | 653 | xfsize = self.subplots[i]['axes'].xaxis.label.get_size()-cols/2 |
---|
| 654 | yfsize = self.subplots[i]['axes'].yaxis.label.get_size()-rows/2 |
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| 655 | self.subplots[i]['axes'].xaxis.label.set_size(xfsize) |
---|
| 656 | self.subplots[i]['axes'].yaxis.label.set_size(yfsize) |
---|
| 657 | |
---|
| 658 | if ganged: |
---|
| 659 | if rows > 1 or cols > 1: |
---|
| 660 | # Squeeze the plots together. |
---|
| 661 | pos = self.subplots[i]['axes'].get_position() |
---|
| 662 | if cols > 1: pos[2] *= 1.2 |
---|
| 663 | if rows > 1: pos[3] *= 1.2 |
---|
| 664 | self.subplots[i]['axes'].set_position(pos) |
---|
[118] | 665 | |
---|
[620] | 666 | # Suppress tick labelling for interior subplots. |
---|
| 667 | if i <= (rows-1)*cols - 1: |
---|
| 668 | if i+cols < nplots: |
---|
| 669 | # Suppress x-labels for frames width |
---|
| 670 | # adjacent frames |
---|
| 671 | for tick in \ |
---|
| 672 | self.subplots[i]['axes'].xaxis.majorTicks: |
---|
| 673 | tick.label1On = False |
---|
| 674 | self.subplots[i]['axes'].xaxis.label.set_visible(False) |
---|
| 675 | if i%cols: |
---|
| 676 | # Suppress y-labels for frames not in the left column. |
---|
| 677 | for tick in self.subplots[i]['axes'].yaxis.majorTicks: |
---|
| 678 | tick.label1On = False |
---|
| 679 | self.subplots[i]['axes'].yaxis.label.set_visible(False) |
---|
| 680 | |
---|
[482] | 681 | |
---|
| 682 | self.rows = rows |
---|
| 683 | self.cols = cols |
---|
| 684 | |
---|
[119] | 685 | self.subplot(0) |
---|
[118] | 686 | |
---|
| 687 | def set_title(self, title=None): |
---|
| 688 | """ |
---|
| 689 | Set the title of the plot window. Use the previous title if title is |
---|
| 690 | omitted. |
---|
| 691 | """ |
---|
| 692 | if title is not None: |
---|
| 693 | self.title = title |
---|
| 694 | |
---|
| 695 | self.figure.text(0.5, 0.95, self.title, horizontalalignment='center') |
---|
| 696 | |
---|
| 697 | |
---|
[111] | 698 | def show(self): |
---|
[117] | 699 | """ |
---|
| 700 | Show graphics dependent on the current buffering state. |
---|
| 701 | """ |
---|
| 702 | if not self.buffering: |
---|
[620] | 703 | if self.loc is not None: |
---|
[482] | 704 | for j in range(len(self.subplots)): |
---|
| 705 | lines = [] |
---|
| 706 | labels = [] |
---|
| 707 | i = 0 |
---|
| 708 | for line in self.subplots[j]['lines']: |
---|
| 709 | i += 1 |
---|
| 710 | if line is not None: |
---|
| 711 | lines.append(line[0]) |
---|
| 712 | lbl = line[0].get_label() |
---|
| 713 | if lbl == '': |
---|
| 714 | lbl = str(i) |
---|
| 715 | labels.append(lbl) |
---|
[111] | 716 | |
---|
[482] | 717 | if len(lines): |
---|
| 718 | self.subplots[j]['axes'].legend(tuple(lines), |
---|
| 719 | tuple(labels), |
---|
| 720 | self.loc) |
---|
| 721 | else: |
---|
| 722 | self.subplots[j]['axes'].legend((' ')) |
---|
[111] | 723 | |
---|
[117] | 724 | self.window.wm_deiconify() |
---|
| 725 | self.canvas.show() |
---|
[111] | 726 | |
---|
[119] | 727 | def subplot(self, i=None, inc=None): |
---|
[117] | 728 | """ |
---|
[118] | 729 | Set the subplot to the 0-relative panel number as defined by one or |
---|
| 730 | more invokations of set_panels(). |
---|
[117] | 731 | """ |
---|
[118] | 732 | l = len(self.subplots) |
---|
| 733 | if l: |
---|
[119] | 734 | if i is not None: |
---|
[120] | 735 | self.i = i |
---|
[111] | 736 | |
---|
[119] | 737 | if inc is not None: |
---|
[120] | 738 | self.i += inc |
---|
[117] | 739 | |
---|
[119] | 740 | self.i %= l |
---|
| 741 | self.axes = self.subplots[self.i]['axes'] |
---|
| 742 | self.lines = self.subplots[self.i]['lines'] |
---|
| 743 | |
---|
| 744 | |
---|
[111] | 745 | def terminate(self): |
---|
[117] | 746 | """ |
---|
| 747 | Clear the figure. |
---|
| 748 | """ |
---|
| 749 | self.window.destroy() |
---|
[111] | 750 | |
---|
| 751 | |
---|
| 752 | def text(self, *args, **kwargs): |
---|
[117] | 753 | """ |
---|
| 754 | Add text to the figure. |
---|
| 755 | """ |
---|
| 756 | self.figure.text(*args, **kwargs) |
---|
[482] | 757 | self.show() |
---|
[111] | 758 | |
---|
[482] | 759 | |
---|
[111] | 760 | def unmap(self): |
---|
[117] | 761 | """ |
---|
| 762 | Hide the ASAPlot graphics window. |
---|
| 763 | """ |
---|
| 764 | self.window.wm_withdraw() |
---|