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 matplotlib |
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8 | |
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9 | from matplotlib.figure import Figure, Text |
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10 | from matplotlib.font_manager import FontProperties as FP |
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11 | from numpy import sqrt, ceil |
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12 | from matplotlib import rc, rcParams |
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13 | from matplotlib.ticker import OldScalarFormatter |
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14 | from matplotlib import _pylab_helpers |
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15 | |
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16 | from asap.parameters import rcParams as asaprcParams |
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17 | from asap.logging import asaplog |
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18 | |
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19 | # API change in mpl >= 0.98 |
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20 | try: |
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21 | from matplotlib.transforms import blended_transform_factory |
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22 | except ImportError: |
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23 | from matplotlib.transforms import blend_xy_sep_transform as blended_transform_factory |
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24 | |
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25 | mvers = matplotlib.__version__.split(".") |
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26 | if int(mvers[0]) == 0 and int(mvers[1]) < 99: |
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27 | #print "Warning: matplotlib version < 0.87. This might cause errors. Please upgrade." |
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28 | asaplog.push( "matplotlib version < 0.99. This might cause errors. Please upgrade." ) |
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29 | asaplog.post( 'WARN' ) |
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30 | |
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31 | class asaplotbase: |
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32 | """ |
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33 | ASAP plotting base class based on matplotlib. |
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34 | """ |
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35 | |
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36 | def __init__(self, rows=1, cols=0, title='', size=None, buffering=False): |
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37 | """ |
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38 | Create a new instance of the ASAPlot plotting class. |
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39 | |
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40 | If rows < 1 then a separate call to set_panels() is required to define |
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41 | the panel layout; refer to the doctext for set_panels(). |
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42 | """ |
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43 | self.is_dead = False |
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44 | self.figure = Figure(figsize=size, facecolor='#ddddee') |
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45 | self.canvas = None |
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46 | |
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47 | self.set_title(title) |
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48 | self.subplots = [] |
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49 | if rows > 0: |
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50 | self.set_panels(rows, cols) |
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51 | |
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52 | # Set matplotlib default colour sequence. |
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53 | self.colormap = "green red black cyan magenta orange blue purple yellow pink".split() |
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54 | |
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55 | c = asaprcParams['plotter.colours'] |
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56 | if isinstance(c,str) and len(c) > 0: |
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57 | self.colormap = c.split() |
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58 | # line styles need to be set as a list of numbers to use set_dashes |
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59 | self.lsalias = {"line": [1,0], |
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60 | "dashdot": [4,2,1,2], |
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61 | "dashed" : [4,2,4,2], |
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62 | "dotted" : [1,2], |
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63 | "dashdotdot": [4,2,1,2,1,2], |
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64 | "dashdashdot": [4,2,4,2,1,2] |
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65 | } |
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66 | |
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67 | styles = "line dashed dotted dashdot".split() |
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68 | c = asaprcParams['plotter.linestyles'] |
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69 | if isinstance(c,str) and len(c) > 0: |
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70 | styles = c.split() |
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71 | s = [] |
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72 | for ls in styles: |
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73 | if self.lsalias.has_key(ls): |
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74 | s.append(self.lsalias.get(ls)) |
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75 | else: |
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76 | s.append('-') |
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77 | self.linestyles = s |
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78 | |
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79 | self.color = 0; |
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80 | self.linestyle = 0; |
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81 | self.attributes = {} |
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82 | self.loc = 0 |
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83 | |
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84 | self.buffering = buffering |
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85 | |
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86 | self.events = {'button_press':None, |
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87 | 'button_release':None, |
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88 | 'motion_notify':None} |
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89 | |
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90 | def _alive(self): |
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91 | # Return True if the GUI alives. |
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92 | if (not self.is_dead) and \ |
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93 | self.figmgr and hasattr(self.figmgr, "num"): |
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94 | figid = self.figmgr.num |
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95 | # Make sure figid=0 is what asapplotter expects. |
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96 | # It might be already destroied/overridden by matplotlib |
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97 | # commands or other methods using asaplot. |
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98 | return _pylab_helpers.Gcf.has_fignum(figid) and \ |
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99 | (self.figmgr == _pylab_helpers.Gcf.get_fig_manager(figid)) |
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100 | return False |
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101 | |
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102 | def _subplotsOk(self, rows, cols, npanel=0): |
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103 | """ |
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104 | Check if the axes in subplots are actually the ones plotted on |
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105 | the figure. Returns a bool. |
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106 | This method is to detect manual layout changes using mpl methods. |
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107 | """ |
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108 | # compare with user defined layout |
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109 | if (rows is not None) and (rows != self.rows): |
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110 | return False |
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111 | if (cols is not None) and (cols != self.cols): |
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112 | return False |
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113 | # check number of subplots |
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114 | figaxes = self.figure.get_axes() |
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115 | np = self.rows*self.cols |
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116 | if npanel > np: |
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117 | return False |
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118 | if len(figaxes) != np: |
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119 | return False |
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120 | if len(self.subplots) != len(figaxes): |
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121 | return False |
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122 | # compare axes instance in this class and on the plotter |
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123 | ok = True |
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124 | for ip in range(np): |
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125 | if self.subplots[ip]['axes'] != figaxes[ip]: |
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126 | ok = False |
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127 | break |
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128 | return ok |
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129 | |
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130 | ### Delete artists ### |
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131 | def clear(self): |
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132 | """ |
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133 | Delete all lines from the current subplot. |
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134 | Line numbering will restart from 0. |
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135 | """ |
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136 | |
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137 | #for i in range(len(self.lines)): |
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138 | # self.delete(i) |
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139 | self.axes.clear() |
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140 | self.color = 0 |
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141 | self.linestyle = 0 |
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142 | self.lines = [] |
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143 | self.subplots[self.i]['lines'] = self.lines |
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144 | |
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145 | def delete(self, numbers=None): |
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146 | """ |
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147 | Delete the 0-relative line number, default is to delete the last. |
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148 | The remaining lines are NOT renumbered. |
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149 | """ |
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150 | |
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151 | if numbers is None: numbers = [len(self.lines)-1] |
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152 | |
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153 | if not hasattr(numbers, '__iter__'): |
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154 | numbers = [numbers] |
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155 | |
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156 | for number in numbers: |
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157 | if 0 <= number < len(self.lines): |
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158 | if self.lines[number] is not None: |
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159 | for line in self.lines[number]: |
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160 | line.set_linestyle('None') |
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161 | self.lines[number] = None |
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162 | self.show() |
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163 | |
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164 | |
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165 | ### Set plot parameters ### |
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166 | def hold(self, hold=True): |
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167 | """ |
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168 | Buffer graphics until subsequently released. |
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169 | """ |
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170 | self.buffering = hold |
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171 | |
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172 | def palette(self, color, colormap=None, linestyle=0, linestyles=None): |
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173 | if colormap: |
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174 | if isinstance(colormap,list): |
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175 | self.colormap = colormap |
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176 | elif isinstance(colormap,str): |
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177 | self.colormap = colormap.split() |
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178 | if 0 <= color < len(self.colormap): |
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179 | self.color = color |
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180 | if linestyles: |
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181 | self.linestyles = [] |
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182 | if isinstance(linestyles,list): |
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183 | styles = linestyles |
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184 | elif isinstance(linestyles,str): |
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185 | styles = linestyles.split() |
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186 | for ls in styles: |
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187 | if self.lsalias.has_key(ls): |
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188 | self.linestyles.append(self.lsalias.get(ls)) |
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189 | else: |
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190 | self.linestyles.append(self.lsalias.get('line')) |
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191 | if 0 <= linestyle < len(self.linestyles): |
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192 | self.linestyle = linestyle |
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193 | |
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194 | def legend(self, loc=None): |
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195 | """ |
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196 | Add a legend to the plot. |
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197 | |
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198 | Any other value for loc else disables the legend: |
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199 | 1: upper right |
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200 | 2: upper left |
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201 | 3: lower left |
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202 | 4: lower right |
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203 | 5: right |
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204 | 6: center left |
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205 | 7: center right |
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206 | 8: lower center |
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207 | 9: upper center |
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208 | 10: center |
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209 | |
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210 | """ |
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211 | if isinstance(loc, int): |
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212 | self.loc = None |
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213 | if 0 <= loc <= 10: self.loc = loc |
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214 | else: |
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215 | self.loc = None |
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216 | #self.show() |
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217 | |
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218 | #def set_panels(self, rows=1, cols=0, n=-1, nplots=-1, ganged=True): |
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219 | def set_panels(self, rows=1, cols=0, n=-1, nplots=-1, margin=None,ganged=True): |
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220 | """ |
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221 | Set the panel layout. |
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222 | |
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223 | rows and cols, if cols != 0, specify the number of rows and columns in |
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224 | a regular layout. (Indexing of these panels in matplotlib is row- |
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225 | major, i.e. column varies fastest.) |
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226 | |
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227 | cols == 0 is interpreted as a retangular layout that accomodates |
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228 | 'rows' panels, e.g. rows == 6, cols == 0 is equivalent to |
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229 | rows == 2, cols == 3. |
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230 | |
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231 | 0 <= n < rows*cols is interpreted as the 0-relative panel number in |
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232 | the configuration specified by rows and cols to be added to the |
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233 | current figure as its next 0-relative panel number (i). This allows |
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234 | non-regular panel layouts to be constructed via multiple calls. Any |
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235 | other value of n clears the plot and produces a rectangular array of |
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236 | empty panels. The number of these may be limited by nplots. |
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237 | """ |
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238 | if n < 0 and len(self.subplots): |
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239 | self.figure.clear() |
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240 | self.set_title() |
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241 | |
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242 | if margin: |
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243 | lef, bot, rig, top, wsp, hsp = margin |
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244 | self.figure.subplots_adjust( |
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245 | left=lef,bottom=bot,right=rig,top=top,wspace=wsp,hspace=hsp) |
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246 | del lef,bot,rig,top,wsp,hsp |
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247 | |
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248 | if rows < 1: rows = 1 |
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249 | |
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250 | if cols <= 0: |
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251 | i = int(sqrt(rows)) |
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252 | if i*i < rows: i += 1 |
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253 | cols = i |
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254 | |
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255 | if i*(i-1) >= rows: i -= 1 |
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256 | rows = i |
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257 | |
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258 | if 0 <= n < rows*cols: |
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259 | i = len(self.subplots) |
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260 | |
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261 | self.subplots.append({}) |
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262 | |
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263 | self.subplots[i]['axes'] = self.figure.add_subplot(rows, |
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264 | cols, n+1) |
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265 | self.subplots[i]['lines'] = [] |
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266 | |
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267 | if i == 0: self.subplot(0) |
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268 | |
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269 | self.rows = 0 |
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270 | self.cols = 0 |
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271 | |
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272 | else: |
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273 | self.subplots = [] |
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274 | |
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275 | if nplots < 1 or rows*cols < nplots: |
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276 | nplots = rows*cols |
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277 | if ganged: |
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278 | hsp,wsp = None,None |
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279 | if rows > 1: hsp = 0.0001 |
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280 | if cols > 1: wsp = 0.0001 |
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281 | self.figure.subplots_adjust(wspace=wsp,hspace=hsp) |
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282 | for i in range(nplots): |
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283 | self.subplots.append({}) |
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284 | self.subplots[i]['lines'] = [] |
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285 | if not ganged: |
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286 | self.subplots[i]['axes'] = self.figure.add_subplot(rows, |
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287 | cols, i+1) |
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288 | if asaprcParams['plotter.axesformatting'] != 'mpl': |
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289 | self.subplots[i]['axes'].xaxis.set_major_formatter(OldScalarFormatter()) |
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290 | else: |
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291 | if i == 0: |
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292 | self.subplots[i]['axes'] = self.figure.add_subplot(rows, |
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293 | cols, i+1) |
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294 | if asaprcParams['plotter.axesformatting'] != 'mpl': |
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295 | |
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296 | self.subplots[i]['axes'].xaxis.set_major_formatter(OldScalarFormatter()) |
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297 | else: |
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298 | self.subplots[i]['axes'] = self.figure.add_subplot(rows, |
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299 | cols, i+1, |
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300 | sharex=self.subplots[0]['axes'], |
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301 | sharey=self.subplots[0]['axes']) |
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302 | |
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303 | # Suppress tick labelling for interior subplots. |
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304 | if i <= (rows-1)*cols - 1: |
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305 | if i+cols < nplots: |
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306 | # Suppress x-labels for frames width |
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307 | # adjacent frames |
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308 | for tick in self.subplots[i]['axes'].xaxis.majorTicks: |
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309 | tick.label1On = False |
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310 | #self.subplots[i]['axes'].xaxis.label.set_visible(False) |
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311 | if i%cols: |
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312 | # Suppress y-labels for frames not in the left column. |
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313 | for tick in self.subplots[i]['axes'].yaxis.majorTicks: |
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314 | tick.label1On = False |
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315 | #self.subplots[i]['axes'].yaxis.label.set_visible(False) |
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316 | # disable the first tick of [1:ncol-1] of the last row |
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317 | #if i+1 < nplots: |
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318 | # self.subplots[i]['axes'].xaxis.majorTicks[0].label1On = False |
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319 | # set axes label state for interior subplots. |
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320 | if i%cols: |
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321 | self.subplots[i]['axes'].yaxis.label.set_visible(False) |
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322 | if (i <= (rows-1)*cols - 1) and (i+cols < nplots): |
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323 | self.subplots[i]['axes'].xaxis.label.set_visible(False) |
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324 | self.rows = rows |
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325 | self.cols = cols |
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326 | self.subplot(0) |
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327 | del rows,cols,n,nplots,margin,ganged,i |
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328 | |
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329 | def subplot(self, i=None, inc=None): |
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330 | """ |
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331 | Set the subplot to the 0-relative panel number as defined by one or |
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332 | more invokations of set_panels(). |
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333 | """ |
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334 | l = len(self.subplots) |
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335 | if l: |
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336 | if i is not None: |
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337 | self.i = i |
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338 | |
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339 | if inc is not None: |
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340 | self.i += inc |
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341 | |
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342 | self.i %= l |
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343 | self.axes = self.subplots[self.i]['axes'] |
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344 | self.lines = self.subplots[self.i]['lines'] |
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345 | |
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346 | def set_axes(self, what=None, *args, **kwargs): |
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347 | """ |
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348 | Set attributes for the axes by calling the relevant Axes.set_*() |
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349 | method. Colour translation is done as described in the doctext |
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350 | for palette(). |
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351 | """ |
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352 | |
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353 | if what is None: return |
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354 | if what[-6:] == 'colour': what = what[:-6] + 'color' |
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355 | |
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356 | key = "colour" |
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357 | if kwargs.has_key(key): |
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358 | val = kwargs.pop(key) |
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359 | kwargs["color"] = val |
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360 | |
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361 | getattr(self.axes, "set_%s"%what)(*args, **kwargs) |
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362 | |
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363 | self.show(hardrefresh=False) |
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364 | |
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365 | |
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366 | def set_figure(self, what=None, *args, **kwargs): |
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367 | """ |
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368 | Set attributes for the figure by calling the relevant Figure.set_*() |
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369 | method. Colour translation is done as described in the doctext |
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370 | for palette(). |
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371 | """ |
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372 | |
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373 | if what is None: return |
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374 | if what[-6:] == 'colour': what = what[:-6] + 'color' |
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375 | #if what[-5:] == 'color' and len(args): |
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376 | # args = (get_colour(args[0]),) |
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377 | |
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378 | newargs = {} |
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379 | for k, v in kwargs.iteritems(): |
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380 | k = k.lower() |
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381 | if k == 'colour': k = 'color' |
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382 | newargs[k] = v |
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383 | |
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384 | getattr(self.figure, "set_%s"%what)(*args, **newargs) |
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385 | self.show(hardrefresh=False) |
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386 | |
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387 | |
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388 | def set_limits(self, xlim=None, ylim=None): |
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389 | """ |
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390 | Set x-, and y-limits for each subplot. |
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391 | |
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392 | xlim = [xmin, xmax] as in axes.set_xlim(). |
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393 | ylim = [ymin, ymax] as in axes.set_ylim(). |
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394 | """ |
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395 | for s in self.subplots: |
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396 | self.axes = s['axes'] |
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397 | self.lines = s['lines'] |
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398 | oldxlim = list(self.axes.get_xlim()) |
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399 | oldylim = list(self.axes.get_ylim()) |
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400 | if xlim is not None: |
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401 | for i in range(len(xlim)): |
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402 | if xlim[i] is not None: |
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403 | oldxlim[i] = xlim[i] |
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404 | if ylim is not None: |
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405 | for i in range(len(ylim)): |
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406 | if ylim[i] is not None: |
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407 | oldylim[i] = ylim[i] |
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408 | self.axes.set_xlim(oldxlim) |
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409 | self.axes.set_ylim(oldylim) |
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410 | return |
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411 | |
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412 | |
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413 | def set_line(self, number=None, **kwargs): |
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414 | """ |
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415 | Set attributes for the specified line, or else the next line(s) |
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416 | to be plotted. |
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417 | |
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418 | number is the 0-relative number of a line that has already been |
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419 | plotted. If no such line exists, attributes are recorded and used |
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420 | for the next line(s) to be plotted. |
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421 | |
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422 | Keyword arguments specify Line2D attributes, e.g. color='r'. Do |
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423 | |
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424 | import matplotlib |
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425 | help(matplotlib.lines) |
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426 | |
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427 | The set_* methods of class Line2D define the attribute names and |
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428 | values. For non-US usage, 'colour' is recognized as synonymous with |
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429 | 'color'. |
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430 | |
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431 | Set the value to None to delete an attribute. |
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432 | |
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433 | Colour translation is done as described in the doctext for palette(). |
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434 | """ |
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435 | |
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436 | redraw = False |
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437 | for k, v in kwargs.iteritems(): |
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438 | k = k.lower() |
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439 | if k == 'colour': k = 'color' |
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440 | |
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441 | if 0 <= number < len(self.lines): |
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442 | if self.lines[number] is not None: |
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443 | for line in self.lines[number]: |
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444 | getattr(line, "set_%s"%k)(v) |
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445 | redraw = True |
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446 | else: |
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447 | if v is None: |
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448 | del self.attributes[k] |
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449 | else: |
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450 | self.attributes[k] = v |
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451 | |
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452 | if redraw: self.show(hardrefresh=False) |
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453 | |
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454 | |
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455 | def get_line(self): |
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456 | """ |
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457 | Get the current default line attributes. |
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458 | """ |
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459 | return self.attributes |
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460 | |
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461 | |
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462 | ### Actual plot methods ### |
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463 | def hist(self, x=None, y=None, fmt=None, add=None): |
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464 | """ |
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465 | Plot a histogram. N.B. the x values refer to the start of the |
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466 | histogram bin. |
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467 | |
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468 | fmt is the line style as in plot(). |
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469 | """ |
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470 | from numpy import array |
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471 | from numpy.ma import MaskedArray |
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472 | if x is None: |
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473 | if y is None: return |
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474 | x = range(len(y)) |
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475 | |
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476 | if len(x) != len(y): |
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477 | return |
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478 | l2 = 2*len(x) |
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479 | x2 = range(l2) |
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480 | y2 = range(12) |
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481 | y2 = range(l2) |
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482 | m2 = range(l2) |
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483 | ymsk = None |
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484 | ydat = None |
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485 | if hasattr(y, "raw_mask"): |
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486 | # numpy < 1.1 |
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487 | ymsk = y.raw_mask() |
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488 | ydat = y.raw_data() |
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489 | else: |
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490 | ymsk = y.mask |
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491 | ydat = y.data |
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492 | for i in range(l2): |
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493 | x2[i] = x[i/2] |
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494 | m2[i] = ymsk[i/2] |
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495 | |
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496 | y2[0] = 0.0 |
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497 | for i in range(1,l2): |
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498 | y2[i] = ydat[(i-1)/2] |
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499 | |
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500 | self.plot(x2, MaskedArray(y2,mask=m2,copy=0), fmt, add) |
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501 | |
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502 | |
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503 | def plot(self, x=None, y=None, fmt=None, add=None): |
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504 | """ |
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505 | Plot the next line in the current frame using the current line |
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506 | attributes. The ASAPlot graphics window will be mapped and raised. |
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507 | |
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508 | The argument list works a bit like the matlab plot() function. |
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509 | """ |
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510 | if x is None: |
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511 | if y is None: return |
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512 | x = range(len(y)) |
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513 | |
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514 | elif y is None: |
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515 | y = x |
---|
516 | x = range(len(y)) |
---|
517 | if fmt is None: |
---|
518 | line = self.axes.plot(x, y) |
---|
519 | else: |
---|
520 | line = self.axes.plot(x, y, fmt) |
---|
521 | # add a picker to lines for spectral value mode. |
---|
522 | # matplotlib.axes.plot returns a list of line object (1 element) |
---|
523 | line[0].set_picker(5.0) |
---|
524 | |
---|
525 | # Add to an existing line? |
---|
526 | i = None |
---|
527 | if add is None or len(self.lines) < add < 0: |
---|
528 | # Don't add. |
---|
529 | self.lines.append(line) |
---|
530 | i = len(self.lines) - 1 |
---|
531 | else: |
---|
532 | if add == 0: add = len(self.lines) |
---|
533 | i = add - 1 |
---|
534 | self.lines[i].extend(line) |
---|
535 | |
---|
536 | # Set/reset attributes for the line. |
---|
537 | gotcolour = False |
---|
538 | for k, v in self.attributes.iteritems(): |
---|
539 | if k == 'color': gotcolour = True |
---|
540 | for segment in self.lines[i]: |
---|
541 | getattr(segment, "set_%s"%k)(v) |
---|
542 | |
---|
543 | if not gotcolour and len(self.colormap): |
---|
544 | for segment in self.lines[i]: |
---|
545 | getattr(segment, "set_color")(self.colormap[self.color]) |
---|
546 | if len(self.colormap) == 1: |
---|
547 | getattr(segment, "set_dashes")(self.linestyles[self.linestyle]) |
---|
548 | |
---|
549 | self.color += 1 |
---|
550 | if self.color >= len(self.colormap): |
---|
551 | self.color = 0 |
---|
552 | |
---|
553 | if len(self.colormap) == 1: |
---|
554 | self.linestyle += 1 |
---|
555 | if self.linestyle >= len(self.linestyles): |
---|
556 | self.linestyle = 0 |
---|
557 | |
---|
558 | self.show() |
---|
559 | |
---|
560 | |
---|
561 | def tidy(self): |
---|
562 | # this needs to be exceuted after the first "refresh" |
---|
563 | nplots = len(self.subplots) |
---|
564 | if nplots == 1: return |
---|
565 | for i in xrange(nplots): |
---|
566 | ax = self.subplots[i]['axes'] |
---|
567 | if i%self.cols: |
---|
568 | ax.xaxis.majorTicks[0].label1On = False |
---|
569 | else: |
---|
570 | if i != 0: |
---|
571 | ax.yaxis.majorTicks[-1].label1On = False |
---|
572 | ## set axes label state for interior subplots. |
---|
573 | #innerax=False |
---|
574 | #if i%self.cols: |
---|
575 | # ax.yaxis.label.set_visible(innerax) |
---|
576 | #if (i <= (self.rows-1)*self.cols - 1) and (i+self.cols < nplots): |
---|
577 | # ax.xaxis.label.set_visible(innerax) |
---|
578 | |
---|
579 | |
---|
580 | def set_title(self, title=None): |
---|
581 | """ |
---|
582 | Set the title of the plot window. Use the previous title if title is |
---|
583 | omitted. |
---|
584 | """ |
---|
585 | if title is not None: |
---|
586 | self.title = title |
---|
587 | |
---|
588 | self.figure.text(0.5, 0.95, self.title, horizontalalignment='center') |
---|
589 | |
---|
590 | |
---|
591 | def text(self, *args, **kwargs): |
---|
592 | """ |
---|
593 | Add text to the figure. |
---|
594 | """ |
---|
595 | self.figure.text(*args, **kwargs) |
---|
596 | self.show() |
---|
597 | |
---|
598 | def vline_with_label(self, x, y, label, |
---|
599 | location='bottom', rotate=0.0, **kwargs): |
---|
600 | """ |
---|
601 | Plot a vertical line with label. |
---|
602 | It takes 'world' values fo x and y. |
---|
603 | """ |
---|
604 | ax = self.axes |
---|
605 | # need this to suppress autoscaling during this function |
---|
606 | self.axes.set_autoscale_on(False) |
---|
607 | ymin = 0.0 |
---|
608 | ymax = 1.0 |
---|
609 | valign = 'center' |
---|
610 | if location.lower() == 'top': |
---|
611 | y = max(0.0, y) |
---|
612 | elif location.lower() == 'bottom': |
---|
613 | y = min(0.0, y) |
---|
614 | lbloffset = 0.06 |
---|
615 | # a rough estimate for the bb of the text |
---|
616 | if rotate > 0.0: lbloffset = 0.03*len(label) |
---|
617 | peakoffset = 0.01 |
---|
618 | xy = None |
---|
619 | xy0 = None |
---|
620 | # matplotlib api change 0.98 is using transform now |
---|
621 | if hasattr(ax.transData, "inverse_xy_tup"): |
---|
622 | # get relative coords |
---|
623 | xy0 = ax.transData.xy_tup((x,y)) |
---|
624 | xy = ax.transAxes.inverse_xy_tup(xy0) |
---|
625 | else: |
---|
626 | xy0 = ax.transData.transform((x,y)) |
---|
627 | # get relative coords |
---|
628 | xy = ax.transAxes.inverted().transform(xy0) |
---|
629 | if location.lower() == 'top': |
---|
630 | ymax = 1.0-lbloffset |
---|
631 | ymin = xy[1]+peakoffset |
---|
632 | valign = 'bottom' |
---|
633 | ylbl = ymax+0.01 |
---|
634 | elif location.lower() == 'bottom': |
---|
635 | ymin = lbloffset |
---|
636 | ymax = xy[1]-peakoffset |
---|
637 | valign = 'top' |
---|
638 | ylbl = ymin-0.01 |
---|
639 | trans = blended_transform_factory(ax.transData, ax.transAxes) |
---|
640 | l = ax.axvline(x, ymin, ymax, color='black', **kwargs) |
---|
641 | t = ax.text(x, ylbl ,label, verticalalignment=valign, |
---|
642 | horizontalalignment='center', |
---|
643 | rotation=rotate,transform = trans) |
---|
644 | self.axes.set_autoscale_on(True) |
---|
645 | |
---|
646 | def release(self): |
---|
647 | """ |
---|
648 | Release buffered graphics. |
---|
649 | """ |
---|
650 | self.buffering = False |
---|
651 | self.show() |
---|
652 | |
---|
653 | |
---|
654 | def show(self, hardrefresh=True): |
---|
655 | """ |
---|
656 | Show graphics dependent on the current buffering state. |
---|
657 | """ |
---|
658 | if not hardrefresh: return |
---|
659 | if not self.buffering: |
---|
660 | if self.loc is not None: |
---|
661 | for sp in self.subplots: |
---|
662 | lines = [] |
---|
663 | labels = [] |
---|
664 | i = 0 |
---|
665 | for line in sp['lines']: |
---|
666 | i += 1 |
---|
667 | if line is not None: |
---|
668 | lines.append(line[0]) |
---|
669 | lbl = line[0].get_label() |
---|
670 | if lbl == '': |
---|
671 | lbl = str(i) |
---|
672 | labels.append(lbl) |
---|
673 | |
---|
674 | if len(lines): |
---|
675 | fp = FP(size=rcParams['legend.fontsize']) |
---|
676 | #fsz = fp.get_size_in_points() - len(lines) |
---|
677 | fsz = fp.get_size_in_points() - max(len(lines),self.cols) |
---|
678 | #fp.set_size(max(fsz,6)) |
---|
679 | fp.set_size(max(fsz,8)) |
---|
680 | sp['axes'].legend(tuple(lines), tuple(labels), |
---|
681 | self.loc, prop=fp) |
---|
682 | #else: |
---|
683 | # sp['axes'].legend((' ')) |
---|
684 | |
---|
685 | from matplotlib.artist import setp |
---|
686 | fpx = FP(size=rcParams['xtick.labelsize']) |
---|
687 | xts = fpx.get_size_in_points()- (self.cols)/2 |
---|
688 | fpy = FP(size=rcParams['ytick.labelsize']) |
---|
689 | yts = fpy.get_size_in_points() - (self.rows)/2 |
---|
690 | fpa = FP(size=rcParams['axes.labelsize']) |
---|
691 | fpat = FP(size=rcParams['axes.titlesize']) |
---|
692 | axsize = fpa.get_size_in_points() |
---|
693 | tsize = fpat.get_size_in_points()-(self.cols)/2 |
---|
694 | for sp in self.subplots: |
---|
695 | ax = sp['axes'] |
---|
696 | ax.title.set_size(tsize) |
---|
697 | setp(ax.get_xticklabels(), fontsize=xts) |
---|
698 | setp(ax.get_yticklabels(), fontsize=yts) |
---|
699 | off = 0 |
---|
700 | if self.cols > 1: off = self.cols |
---|
701 | ax.xaxis.label.set_size(axsize-off) |
---|
702 | off = 0 |
---|
703 | if self.rows > 1: off = self.rows |
---|
704 | ax.yaxis.label.set_size(axsize-off) |
---|
705 | |
---|
706 | def save(self, fname=None, orientation=None, dpi=None, papertype=None): |
---|
707 | """ |
---|
708 | Save the plot to a file. |
---|
709 | |
---|
710 | fname is the name of the output file. The image format is determined |
---|
711 | from the file suffix; 'png', 'ps', and 'eps' are recognized. If no |
---|
712 | file name is specified 'yyyymmdd_hhmmss.png' is created in the current |
---|
713 | directory. |
---|
714 | """ |
---|
715 | from asap import rcParams |
---|
716 | if papertype is None: |
---|
717 | papertype = rcParams['plotter.papertype'] |
---|
718 | if fname is None: |
---|
719 | from datetime import datetime |
---|
720 | dstr = datetime.now().strftime('%Y%m%d_%H%M%S') |
---|
721 | fname = 'asap'+dstr+'.png' |
---|
722 | |
---|
723 | d = ['png','.ps','eps', 'svg'] |
---|
724 | |
---|
725 | from os.path import expandvars |
---|
726 | fname = expandvars(fname) |
---|
727 | |
---|
728 | if fname[-3:].lower() in d: |
---|
729 | try: |
---|
730 | if fname[-3:].lower() == ".ps": |
---|
731 | from matplotlib import __version__ as mv |
---|
732 | w = self.figure.get_figwidth() |
---|
733 | h = self.figure.get_figheight() |
---|
734 | |
---|
735 | if orientation is None: |
---|
736 | # oriented |
---|
737 | if w > h: |
---|
738 | orientation = 'landscape' |
---|
739 | else: |
---|
740 | orientation = 'portrait' |
---|
741 | from matplotlib.backends.backend_ps import papersize |
---|
742 | pw,ph = papersize[papertype.lower()] |
---|
743 | ds = None |
---|
744 | if orientation == 'landscape': |
---|
745 | ds = min(ph/w, pw/h) |
---|
746 | else: |
---|
747 | ds = min(pw/w, ph/h) |
---|
748 | ow = ds * w |
---|
749 | oh = ds * h |
---|
750 | self.figure.set_size_inches((ow, oh)) |
---|
751 | self.figure.savefig(fname, orientation=orientation, |
---|
752 | papertype=papertype.lower()) |
---|
753 | self.figure.set_size_inches((w, h)) |
---|
754 | print 'Written file %s' % (fname) |
---|
755 | else: |
---|
756 | if dpi is None: |
---|
757 | dpi =150 |
---|
758 | self.figure.savefig(fname,dpi=dpi) |
---|
759 | print 'Written file %s' % (fname) |
---|
760 | except IOError, msg: |
---|
761 | #print 'Failed to save %s: Error msg was\n\n%s' % (fname, err) |
---|
762 | asaplog.post() |
---|
763 | asaplog.push('Failed to save %s: Error msg was\n\n%s' % (fname, str(msg))) |
---|
764 | asaplog.post( 'ERROR' ) |
---|
765 | return |
---|
766 | else: |
---|
767 | #print "Invalid image type. Valid types are:" |
---|
768 | #print "'ps', 'eps', 'png'" |
---|
769 | asaplog.push( "Invalid image type. Valid types are:" ) |
---|
770 | asaplog.push( "'ps', 'eps', 'png', 'svg'" ) |
---|
771 | asaplog.post('WARN') |
---|
772 | |
---|
773 | |
---|
774 | ### GUI event methods ### |
---|
775 | def position(self): |
---|
776 | """ |
---|
777 | Use the mouse to get a position from a graph. |
---|
778 | """ |
---|
779 | |
---|
780 | def position_disable(event): |
---|
781 | self.register('button_press', None) |
---|
782 | print '%.4f, %.4f' % (event.xdata, event.ydata) |
---|
783 | |
---|
784 | print 'Press any mouse button...' |
---|
785 | self.register('button_press', position_disable) |
---|
786 | |
---|
787 | |
---|
788 | def get_region(self): |
---|
789 | pos = [] |
---|
790 | print "Please select the bottom/left point" |
---|
791 | pos.append(self.figure.ginput(n=1, show_clicks=False)[0]) |
---|
792 | print "Please select the top/right point" |
---|
793 | pos.append(self.figure.ginput(n=1, show_clicks=False)[0]) |
---|
794 | return pos |
---|
795 | |
---|
796 | def get_point(self): |
---|
797 | print "Please select the point" |
---|
798 | pt = self.figure.ginput(n=1, show_clicks=False) |
---|
799 | if pt: |
---|
800 | return pt[0] |
---|
801 | else: |
---|
802 | return None |
---|
803 | |
---|
804 | def region(self): |
---|
805 | """ |
---|
806 | Use the mouse to get a rectangular region from a plot. |
---|
807 | |
---|
808 | The return value is [x0, y0, x1, y1] in world coordinates. |
---|
809 | """ |
---|
810 | |
---|
811 | def region_start(event): |
---|
812 | self.rect = {'x': event.x, 'y': event.y, |
---|
813 | 'world': [event.xdata, event.ydata, |
---|
814 | event.xdata, event.ydata]} |
---|
815 | self.register('button_press', None) |
---|
816 | self.register('motion_notify', region_draw) |
---|
817 | self.register('button_release', region_disable) |
---|
818 | |
---|
819 | def region_draw(event): |
---|
820 | self.figmgr.toolbar.draw_rubberband(event, event.x, event.y, |
---|
821 | self.rect['x'], self.rect['y']) |
---|
822 | |
---|
823 | def region_disable(event): |
---|
824 | self.register('motion_notify', None) |
---|
825 | self.register('button_release', None) |
---|
826 | |
---|
827 | self.rect['world'][2:4] = [event.xdata, event.ydata] |
---|
828 | print '(%.2f, %.2f) (%.2f, %.2f)' % (self.rect['world'][0], |
---|
829 | self.rect['world'][1], self.rect['world'][2], |
---|
830 | self.rect['world'][3]) |
---|
831 | self.figmgr.toolbar.release(event) |
---|
832 | |
---|
833 | self.register('button_press', region_start) |
---|
834 | |
---|
835 | # This has to be modified to block and return the result (currently |
---|
836 | # printed by region_disable) when that becomes possible in matplotlib. |
---|
837 | |
---|
838 | return [0.0, 0.0, 0.0, 0.0] |
---|
839 | |
---|
840 | |
---|
841 | def register(self, type=None, func=None): |
---|
842 | """ |
---|
843 | Register, reregister, or deregister events of type 'button_press', |
---|
844 | 'button_release', or 'motion_notify'. |
---|
845 | |
---|
846 | The specified callback function should have the following signature: |
---|
847 | |
---|
848 | def func(event) |
---|
849 | |
---|
850 | where event is an MplEvent instance containing the following data: |
---|
851 | |
---|
852 | name # Event name. |
---|
853 | canvas # FigureCanvas instance generating the event. |
---|
854 | x = None # x position - pixels from left of canvas. |
---|
855 | y = None # y position - pixels from bottom of canvas. |
---|
856 | button = None # Button pressed: None, 1, 2, 3. |
---|
857 | key = None # Key pressed: None, chr(range(255)), shift, |
---|
858 | win, or control |
---|
859 | inaxes = None # Axes instance if cursor within axes. |
---|
860 | xdata = None # x world coordinate. |
---|
861 | ydata = None # y world coordinate. |
---|
862 | |
---|
863 | For example: |
---|
864 | |
---|
865 | def mouse_move(event): |
---|
866 | print event.xdata, event.ydata |
---|
867 | |
---|
868 | a = asaplot() |
---|
869 | a.register('motion_notify', mouse_move) |
---|
870 | |
---|
871 | If func is None, the event is deregistered. |
---|
872 | |
---|
873 | Note that in TkAgg keyboard button presses don't generate an event. |
---|
874 | """ |
---|
875 | |
---|
876 | if not self.events.has_key(type): return |
---|
877 | |
---|
878 | if func is None: |
---|
879 | if self.events[type] is not None: |
---|
880 | # It's not clear that this does anything. |
---|
881 | self.canvas.mpl_disconnect(self.events[type]) |
---|
882 | self.events[type] = None |
---|
883 | |
---|
884 | # It seems to be necessary to return events to the toolbar. <-- Not ture. 2010.Jul.14.kana. |
---|
885 | #if type == 'motion_notify': |
---|
886 | # self.canvas.mpl_connect(type + '_event', |
---|
887 | # self.figmgr.toolbar.mouse_move) |
---|
888 | #elif type == 'button_press': |
---|
889 | # self.canvas.mpl_connect(type + '_event', |
---|
890 | # self.figmgr.toolbar.press) |
---|
891 | #elif type == 'button_release': |
---|
892 | # self.canvas.mpl_connect(type + '_event', |
---|
893 | # self.figmgr.toolbar.release) |
---|
894 | |
---|
895 | else: |
---|
896 | self.events[type] = self.canvas.mpl_connect(type + '_event', func) |
---|
897 | |
---|