1 | from asap.parameters import rcParams
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2 | from asap.selector import selector
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3 | from asap.scantable import scantable
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4 | from asap.logging import asaplog, asaplog_post_dec
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5 | import matplotlib.axes
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6 | from matplotlib.font_manager import FontProperties
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7 | from matplotlib.text import Text
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8 |
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9 | import re
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10 |
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11 | class asapplotter:
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12 | """
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13 | The ASAP plotter.
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14 | By default the plotter is set up to plot polarisations
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15 | 'colour stacked' and scantables across panels.
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16 |
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17 | .. note::
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18 |
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19 | Currenly it only plots 'spectra' not Tsys or
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20 | other variables.
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21 |
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22 | """
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23 | def __init__(self, visible=None , **kwargs):
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24 | self._visible = rcParams['plotter.gui']
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25 | if visible is not None:
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26 | self._visible = visible
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27 | self._plotter = self._newplotter(**kwargs)
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28 | # additional tool bar
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29 | self._plotter.figmgr.casabar=self._newcasabar()
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30 |
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31 | self._panelling = None
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32 | self._stacking = None
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33 | self.set_panelling()
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34 | self.set_stacking()
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35 | self._rows = None
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36 | self._cols = None
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37 | self._autoplot = False
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38 | self._minmaxx = None
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39 | self._minmaxy = None
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40 | self._datamask = None
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41 | self._data = None
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42 | self._lmap = None
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43 | self._title = None
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44 | self._ordinate = None
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45 | self._abcissa = None
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46 | self._abcunit = None
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47 | self._usermask = []
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48 | self._maskselection = None
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49 | self._selection = selector()
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50 | self._hist = rcParams['plotter.histogram']
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51 | self._fp = FontProperties()
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52 | self._panellayout = self.set_panellayout(refresh=False)
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53 | self._offset = None
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54 | self._rowcount = 0
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55 | self._panelcnt = 0
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56 |
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57 | def _translate(self, instr):
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58 | keys = "s b i p t r".split()
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59 | if isinstance(instr, str):
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60 | for key in keys:
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61 | if instr.lower().startswith(key):
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62 | return key
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63 | return None
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64 |
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65 | def _newplotter(self, **kwargs):
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66 | backend=matplotlib.get_backend()
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67 | if not self._visible:
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68 | from asap.asaplot import asaplot
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69 | elif backend == 'TkAgg':
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70 | from asap.asaplotgui import asaplotgui as asaplot
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71 | elif backend == 'Qt4Agg':
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72 | from asap.asaplotgui_qt4 import asaplotgui as asaplot
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73 | elif backend == 'GTkAgg':
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74 | from asap.asaplotgui_gtk import asaplotgui as asaplot
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75 | else:
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76 | from asap.asaplot import asaplot
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77 | return asaplot(**kwargs)
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78 |
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79 | def _newcasabar(self):
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80 | backend=matplotlib.get_backend()
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81 | if self._visible and backend == "TkAgg":
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82 | from asap.casatoolbar import CustomToolbarTkAgg
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83 | return CustomToolbarTkAgg(self)
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84 | else: return None
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85 |
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86 | @asaplog_post_dec
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87 | def plot(self, scan=None):
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88 | """
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89 | Plot a scantable.
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90 | Parameters:
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91 | scan: a scantable
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92 | Note:
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93 | If a scantable was specified in a previous call
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94 | to plot, no argument has to be given to 'replot'
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95 | NO checking is done that the abcissas of the scantable
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96 | are consistent e.g. all 'channel' or all 'velocity' etc.
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97 | """
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98 | self._rowcount = self._panelcnt = 0
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99 | if self._plotter.is_dead:
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100 | if hasattr(self._plotter.figmgr,'casabar'):
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101 | del self._plotter.figmgr.casabar
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102 | self._plotter = self._newplotter()
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103 | self._plotter.figmgr.casabar=self._newcasabar()
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104 | self._plotter.hold()
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105 | self._plotter.clear()
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106 | if not self._data and not scan:
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107 | msg = "Input is not a scantable"
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108 | raise TypeError(msg)
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109 | if scan:
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110 | self.set_data(scan, refresh=False)
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111 | self._plot(self._data)
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112 | if self._minmaxy is not None:
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113 | self._plotter.set_limits(ylim=self._minmaxy)
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114 | if self._plotter.figmgr.casabar: self._plotter.figmgr.casabar.enable_button()
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115 | self._plotter.release()
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116 | self._plotter.tidy()
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117 | self._plotter.show(hardrefresh=False)
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118 | return
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119 |
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120 | def gca(self):
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121 | return self._plotter.figure.gca()
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122 |
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123 | def refresh(self):
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124 | """Do a soft refresh"""
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125 | self._plotter.figure.show()
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126 |
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127 | def create_mask(self, nwin=1, panel=0, color=None):
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128 | """
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129 | Interactively define a mask.It retruns a mask that is equivalent to
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130 | the one created manually with scantable.create_mask.
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131 | Parameters:
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132 | nwin: The number of mask windows to create interactively
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133 | default is 1.
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134 | panel: Which panel to use for mask selection. This is useful
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135 | if different IFs are spread over panels (default 0)
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136 | """
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137 | if self._data is None:
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138 | return []
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139 | outmask = []
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140 | self._plotter.subplot(panel)
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141 | xmin, xmax = self._plotter.axes.get_xlim()
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142 | marg = 0.05*(xmax-xmin)
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143 | self._plotter.axes.set_xlim(xmin-marg, xmax+marg)
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144 | self.refresh()
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145 |
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146 | def cleanup(lines=False, texts=False, refresh=False):
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147 | if lines:
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148 | del self._plotter.axes.lines[-1]
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149 | if texts:
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150 | del self._plotter.axes.texts[-1]
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151 | if refresh:
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152 | self.refresh()
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153 |
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154 | for w in xrange(nwin):
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155 | wpos = []
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156 | self.text(0.05,1.0, "Add start boundary",
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157 | coords="relative", fontsize=10)
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158 | point = self._plotter.get_point()
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159 | cleanup(texts=True)
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160 | if point is None:
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161 | continue
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162 | wpos.append(point[0])
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163 | self.axvline(wpos[0], color=color)
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164 | self.text(0.05,1.0, "Add end boundary", coords="relative", fontsize=10)
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165 | point = self._plotter.get_point()
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166 | cleanup(texts=True, lines=True)
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167 | if point is None:
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168 | self.refresh()
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169 | continue
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170 | wpos.append(point[0])
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171 | self.axvspan(wpos[0], wpos[1], alpha=0.1,
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172 | edgecolor=color, facecolor=color)
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173 | ymin, ymax = self._plotter.axes.get_ylim()
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174 | outmask.append(wpos)
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175 |
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176 | self._plotter.axes.set_xlim(xmin, xmax)
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177 | self.refresh()
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178 | if len(outmask) > 0:
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179 | return self._data.create_mask(*outmask)
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180 | return []
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181 |
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182 | # forwards to matplotlib axes
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183 | def text(self, *args, **kwargs):
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184 | if kwargs.has_key("interactive"):
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185 | if kwargs.pop("interactive"):
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186 | pos = self._plotter.get_point()
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187 | args = tuple(pos)+args
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188 | self._axes_callback("text", *args, **kwargs)
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189 |
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190 | text.__doc__ = matplotlib.axes.Axes.text.__doc__
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191 |
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192 | def arrow(self, *args, **kwargs):
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193 | if kwargs.has_key("interactive"):
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194 | if kwargs.pop("interactive"):
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195 | pos = self._plotter.get_region()
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196 | dpos = (pos[0][0], pos[0][1],
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197 | pos[1][0]-pos[0][0],
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198 | pos[1][1] - pos[0][1])
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199 | args = dpos + args
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200 | self._axes_callback("arrow", *args, **kwargs)
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201 |
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202 | arrow.__doc__ = matplotlib.axes.Axes.arrow.__doc__
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203 |
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204 | def annotate(self, text, xy=None, xytext=None, **kwargs):
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205 | if kwargs.has_key("interactive"):
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206 | if kwargs.pop("interactive"):
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207 | xy = self._plotter.get_point()
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208 | xytext = self._plotter.get_point()
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209 | if not kwargs.has_key("arrowprops"):
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210 | kwargs["arrowprops"] = dict(arrowstyle="->")
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211 | self._axes_callback("annotate", text, xy, xytext, **kwargs)
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212 |
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213 | annotate.__doc__ = matplotlib.axes.Axes.annotate.__doc__
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214 |
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215 | def axvline(self, *args, **kwargs):
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216 | if kwargs.has_key("interactive"):
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217 | if kwargs.pop("interactive"):
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218 | pos = self._plotter.get_point()
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219 | args = (pos[0],)+args
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220 | self._axes_callback("axvline", *args, **kwargs)
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221 |
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222 | axvline.__doc__ = matplotlib.axes.Axes.axvline.__doc__
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223 |
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224 | def axhline(self, *args, **kwargs):
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225 | if kwargs.has_key("interactive"):
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226 | if kwargs.pop("interactive"):
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227 | pos = self._plotter.get_point()
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228 | args = (pos[1],)+args
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229 | self._axes_callback("axhline", *args, **kwargs)
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230 |
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231 | axhline.__doc__ = matplotlib.axes.Axes.axhline.__doc__
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232 |
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233 | def axvspan(self, *args, **kwargs):
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234 | if kwargs.has_key("interactive"):
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235 | if kwargs.pop("interactive"):
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236 | pos = self._plotter.get_region()
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237 | dpos = (pos[0][0], pos[1][0])
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238 | args = dpos + args
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239 | self._axes_callback("axvspan", *args, **kwargs)
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240 | # hack to preventy mpl from redrawing the patch
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241 | # it seem to convert the patch into lines on every draw.
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242 | # This doesn't happen in a test script???
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243 | #del self._plotter.axes.patches[-1]
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244 |
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245 | axvspan.__doc__ = matplotlib.axes.Axes.axvspan.__doc__
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246 |
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247 | def axhspan(self, *args, **kwargs):
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248 | if kwargs.has_key("interactive"):
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249 | if kwargs.pop("interactive"):
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250 | pos = self._plotter.get_region()
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251 | dpos = (pos[0][1], pos[1][1])
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252 | args = dpos + args
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253 | self._axes_callback("axhspan", *args, **kwargs)
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254 | # hack to preventy mpl from redrawing the patch
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255 | # it seem to convert the patch into lines on every draw.
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256 | # This doesn't happen in a test script???
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257 | #del self._plotter.axes.patches[-1]
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258 |
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259 | axhspan.__doc__ = matplotlib.axes.Axes.axhspan.__doc__
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260 |
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261 | def _axes_callback(self, axesfunc, *args, **kwargs):
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262 | panel = 0
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263 | if kwargs.has_key("panel"):
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264 | panel = kwargs.pop("panel")
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265 | coords = None
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266 | if kwargs.has_key("coords"):
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267 | coords = kwargs.pop("coords")
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268 | if coords.lower() == 'world':
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269 | kwargs["transform"] = self._plotter.axes.transData
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270 | elif coords.lower() == 'relative':
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271 | kwargs["transform"] = self._plotter.axes.transAxes
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272 | self._plotter.subplot(panel)
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273 | self._plotter.axes.set_autoscale_on(False)
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274 | getattr(self._plotter.axes, axesfunc)(*args, **kwargs)
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275 | self._plotter.show(False)
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276 | self._plotter.axes.set_autoscale_on(True)
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277 | # end matplotlib.axes fowarding functions
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278 |
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279 | @asaplog_post_dec
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280 | def set_data(self, scan, refresh=True):
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281 | """
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282 | Set a scantable to plot.
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283 | Parameters:
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284 | scan: a scantable
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285 | refresh: True (default) or False. If True, the plot is
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286 | replotted based on the new parameter setting(s).
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287 | Otherwise,the parameter(s) are set without replotting.
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288 | Note:
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289 | The user specified masks and data selections will be reset
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290 | if a new scantable is set. This method should be called before
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291 | setting data selections (set_selection) and/or masks (set_mask).
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292 | """
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293 | from asap import scantable
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294 | if isinstance(scan, scantable):
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295 | if self._data is not None:
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296 | if scan != self._data:
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297 | self._data = scan
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298 | # reset
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299 | self._reset()
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300 | msg = "A new scantable is set to the plotter. "\
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301 | "The masks and data selections are reset."
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302 | asaplog.push( msg )
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303 | else:
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304 | self._data = scan
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305 | self._reset()
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306 | else:
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307 | msg = "Input is not a scantable"
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308 | raise TypeError(msg)
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309 |
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310 | # ranges become invalid when unit changes
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311 | if self._abcunit and self._abcunit != self._data.get_unit():
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312 | self._minmaxx = None
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313 | self._minmaxy = None
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314 | self._abcunit = self._data.get_unit()
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315 | self._datamask = None
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316 | if refresh: self.plot()
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317 |
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318 | @asaplog_post_dec
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319 | def set_mode(self, stacking=None, panelling=None, refresh=True):
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320 | """
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321 | Set the plots look and feel, i.e. what you want to see on the plot.
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322 | Parameters:
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323 | stacking: tell the plotter which variable to plot
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324 | as line colour overlays (default 'pol')
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325 | panelling: tell the plotter which variable to plot
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326 | across multiple panels (default 'scan'
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327 | refresh: True (default) or False. If True, the plot is
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328 | replotted based on the new parameter setting(s).
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329 | Otherwise,the parameter(s) are set without replotting.
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330 | Note:
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331 | Valid modes are:
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332 | 'beam' 'Beam' 'b': Beams
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333 | 'if' 'IF' 'i': IFs
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334 | 'pol' 'Pol' 'p': Polarisations
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335 | 'scan' 'Scan' 's': Scans
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336 | 'time' 'Time' 't': Times
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337 | """
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338 | msg = "Invalid mode"
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339 | if not self.set_panelling(panelling) or \
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340 | not self.set_stacking(stacking):
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341 | raise TypeError(msg)
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342 | if self._panelling == 'r':
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343 | self._stacking = '_r'
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344 | elif self._stacking == 'r':
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345 | self._panelling = '_r'
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346 | if refresh and self._data: self.plot(self._data)
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347 | return
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348 |
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349 | def set_panelling(self, what=None):
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350 | """Set the 'panelling' mode i.e. which type of spectra should be
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351 | spread across different panels.
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352 | """
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353 |
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354 | mode = what
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355 | if mode is None:
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356 | mode = rcParams['plotter.panelling']
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357 | md = self._translate(mode)
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358 | if md:
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359 | self._panelling = md
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360 | self._title = None
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361 | if md == 'r':
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362 | self._stacking = '_r'
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363 | return True
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364 | return False
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365 |
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366 | def set_layout(self,rows=None,cols=None,refresh=True):
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367 | """
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368 | Set the multi-panel layout, i.e. how many rows and columns plots
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369 | are visible.
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370 | Parameters:
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371 | rows: The number of rows of plots
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372 | cols: The number of columns of plots
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373 | refresh: True (default) or False. If True, the plot is
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374 | replotted based on the new parameter setting(s).
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375 | Otherwise,the parameter(s) are set without replotting.
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376 | Note:
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377 | If no argument is given, the potter reverts to its auto-plot
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378 | behaviour.
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379 | """
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380 | self._rows = rows
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381 | self._cols = cols
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382 | if refresh and self._data: self.plot(self._data)
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383 | return
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384 |
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385 | def set_stacking(self, what=None):
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386 | """Set the 'stacking' mode i.e. which type of spectra should be
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387 | overlayed.
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388 | """
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389 | mode = what
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390 | if mode is None:
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391 | mode = rcParams['plotter.stacking']
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392 | md = self._translate(mode)
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393 | if md:
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394 | self._stacking = md
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395 | self._lmap = None
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396 | if md == 'r':
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397 | self._panelling = '_r'
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398 | return True
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399 | return False
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400 |
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401 | def set_range(self,xstart=None,xend=None,ystart=None,yend=None,refresh=True, offset=None):
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402 | """
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403 | Set the range of interest on the abcissa of the plot
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404 | Parameters:
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405 | [x,y]start,[x,y]end: The start and end points of the 'zoom' window
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406 | refresh: True (default) or False. If True, the plot is
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407 | replotted based on the new parameter setting(s).
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408 | Otherwise,the parameter(s) are set without replotting.
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409 | offset: shift the abcissa by the given amount. The abcissa label will
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410 | have '(relative)' appended to it.
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411 | Note:
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412 | These become non-sensical when the unit changes.
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413 | use plotter.set_range() without parameters to reset
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414 |
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415 | """
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416 | self._offset = offset
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417 | if xstart is None and xend is None:
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418 | self._minmaxx = None
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419 | else:
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420 | self._minmaxx = [xstart,xend]
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421 | if ystart is None and yend is None:
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422 | self._minmaxy = None
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423 | else:
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424 | self._minmaxy = [ystart,yend]
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425 | if refresh and self._data: self.plot(self._data)
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426 | return
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427 |
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428 | def set_legend(self, mp=None, fontsize = None, mode = 0, refresh=True):
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429 | """
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430 | Specify a mapping for the legend instead of using the default
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431 | indices:
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432 | Parameters:
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433 | mp: a list of 'strings'. This should have the same length
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434 | as the number of elements on the legend and then maps
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435 | to the indeces in order. It is possible to uses latex
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436 | math expression. These have to be enclosed in r'',
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437 | e.g. r'$x^{2}$'
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438 | fontsize: The font size of the label (default None)
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439 | mode: where to display the legend
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440 | Any other value for loc else disables the legend:
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---|
441 | 0: auto
|
---|
442 | 1: upper right
|
---|
443 | 2: upper left
|
---|
444 | 3: lower left
|
---|
445 | 4: lower right
|
---|
446 | 5: right
|
---|
447 | 6: center left
|
---|
448 | 7: center right
|
---|
449 | 8: lower center
|
---|
450 | 9: upper center
|
---|
451 | 10: center
|
---|
452 | refresh: True (default) or False. If True, the plot is
|
---|
453 | replotted based on the new parameter setting(s).
|
---|
454 | Otherwise,the parameter(s) are set without replotting.
|
---|
455 |
|
---|
456 | Example:
|
---|
457 | If the data has two IFs/rest frequencies with index 0 and 1
|
---|
458 | for CO and SiO:
|
---|
459 | plotter.set_stacking('i')
|
---|
460 | plotter.set_legend(['CO','SiO'])
|
---|
461 | plotter.plot()
|
---|
462 | plotter.set_legend([r'$^{12}CO$', r'SiO'])
|
---|
463 | """
|
---|
464 | self._lmap = mp
|
---|
465 | self._plotter.legend(mode)
|
---|
466 | if isinstance(fontsize, int):
|
---|
467 | from matplotlib import rc as rcp
|
---|
468 | rcp('legend', fontsize=fontsize)
|
---|
469 | if refresh and self._data: self.plot(self._data)
|
---|
470 | return
|
---|
471 |
|
---|
472 | def set_title(self, title=None, fontsize=None, refresh=True):
|
---|
473 | """
|
---|
474 | Set the title of the plot. If multiple panels are plotted,
|
---|
475 | multiple titles have to be specified.
|
---|
476 | Parameters:
|
---|
477 | refresh: True (default) or False. If True, the plot is
|
---|
478 | replotted based on the new parameter setting(s).
|
---|
479 | Otherwise,the parameter(s) are set without replotting.
|
---|
480 | Example:
|
---|
481 | # two panels are visible on the plotter
|
---|
482 | plotter.set_title(["First Panel","Second Panel"])
|
---|
483 | """
|
---|
484 | self._title = title
|
---|
485 | if isinstance(fontsize, int):
|
---|
486 | from matplotlib import rc as rcp
|
---|
487 | rcp('axes', titlesize=fontsize)
|
---|
488 | if refresh and self._data: self.plot(self._data)
|
---|
489 | return
|
---|
490 |
|
---|
491 | def set_ordinate(self, ordinate=None, fontsize=None, refresh=True):
|
---|
492 | """
|
---|
493 | Set the y-axis label of the plot. If multiple panels are plotted,
|
---|
494 | multiple labels have to be specified.
|
---|
495 | Parameters:
|
---|
496 | ordinate: a list of ordinate labels. None (default) let
|
---|
497 | data determine the labels
|
---|
498 | refresh: True (default) or False. If True, the plot is
|
---|
499 | replotted based on the new parameter setting(s).
|
---|
500 | Otherwise,the parameter(s) are set without replotting.
|
---|
501 | Example:
|
---|
502 | # two panels are visible on the plotter
|
---|
503 | plotter.set_ordinate(["First Y-Axis","Second Y-Axis"])
|
---|
504 | """
|
---|
505 | self._ordinate = ordinate
|
---|
506 | if isinstance(fontsize, int):
|
---|
507 | from matplotlib import rc as rcp
|
---|
508 | rcp('axes', labelsize=fontsize)
|
---|
509 | rcp('ytick', labelsize=fontsize)
|
---|
510 | if refresh and self._data: self.plot(self._data)
|
---|
511 | return
|
---|
512 |
|
---|
513 | def set_abcissa(self, abcissa=None, fontsize=None, refresh=True):
|
---|
514 | """
|
---|
515 | Set the x-axis label of the plot. If multiple panels are plotted,
|
---|
516 | multiple labels have to be specified.
|
---|
517 | Parameters:
|
---|
518 | abcissa: a list of abcissa labels. None (default) let
|
---|
519 | data determine the labels
|
---|
520 | refresh: True (default) or False. If True, the plot is
|
---|
521 | replotted based on the new parameter setting(s).
|
---|
522 | Otherwise,the parameter(s) are set without replotting.
|
---|
523 | Example:
|
---|
524 | # two panels are visible on the plotter
|
---|
525 | plotter.set_ordinate(["First X-Axis","Second X-Axis"])
|
---|
526 | """
|
---|
527 | self._abcissa = abcissa
|
---|
528 | if isinstance(fontsize, int):
|
---|
529 | from matplotlib import rc as rcp
|
---|
530 | rcp('axes', labelsize=fontsize)
|
---|
531 | rcp('xtick', labelsize=fontsize)
|
---|
532 | if refresh and self._data: self.plot(self._data)
|
---|
533 | return
|
---|
534 |
|
---|
535 | def set_colors(self, colmap, refresh=True):
|
---|
536 | """
|
---|
537 | Set the colours to be used. The plotter will cycle through
|
---|
538 | these colours when lines are overlaid (stacking mode).
|
---|
539 | Parameters:
|
---|
540 | colmap: a list of colour names
|
---|
541 | refresh: True (default) or False. If True, the plot is
|
---|
542 | replotted based on the new parameter setting(s).
|
---|
543 | Otherwise,the parameter(s) are set without replotting.
|
---|
544 | Example:
|
---|
545 | plotter.set_colors("red green blue")
|
---|
546 | # If for example four lines are overlaid e.g I Q U V
|
---|
547 | # 'I' will be 'red', 'Q' will be 'green', U will be 'blue'
|
---|
548 | # and 'V' will be 'red' again.
|
---|
549 | """
|
---|
550 | if isinstance(colmap,str):
|
---|
551 | colmap = colmap.split()
|
---|
552 | self._plotter.palette(0, colormap=colmap)
|
---|
553 | if refresh and self._data: self.plot(self._data)
|
---|
554 |
|
---|
555 | # alias for english speakers
|
---|
556 | set_colours = set_colors
|
---|
557 |
|
---|
558 | def set_histogram(self, hist=True, linewidth=None, refresh=True):
|
---|
559 | """
|
---|
560 | Enable/Disable histogram-like plotting.
|
---|
561 | Parameters:
|
---|
562 | hist: True (default) or False. The fisrt default
|
---|
563 | is taken from the .asaprc setting
|
---|
564 | plotter.histogram
|
---|
565 | refresh: True (default) or False. If True, the plot is
|
---|
566 | replotted based on the new parameter setting(s).
|
---|
567 | Otherwise,the parameter(s) are set without replotting.
|
---|
568 | """
|
---|
569 | self._hist = hist
|
---|
570 | if isinstance(linewidth, float) or isinstance(linewidth, int):
|
---|
571 | from matplotlib import rc as rcp
|
---|
572 | rcp('lines', linewidth=linewidth)
|
---|
573 | if refresh and self._data: self.plot(self._data)
|
---|
574 |
|
---|
575 | def set_linestyles(self, linestyles=None, linewidth=None, refresh=True):
|
---|
576 | """
|
---|
577 | Set the linestyles to be used. The plotter will cycle through
|
---|
578 | these linestyles when lines are overlaid (stacking mode) AND
|
---|
579 | only one color has been set.
|
---|
580 | Parameters:
|
---|
581 | linestyles: a list of linestyles to use.
|
---|
582 | 'line', 'dashed', 'dotted', 'dashdot',
|
---|
583 | 'dashdotdot' and 'dashdashdot' are
|
---|
584 | possible
|
---|
585 | refresh: True (default) or False. If True, the plot is
|
---|
586 | replotted based on the new parameter setting(s).
|
---|
587 | Otherwise,the parameter(s) are set without replotting.
|
---|
588 | Example:
|
---|
589 | plotter.set_colors("black")
|
---|
590 | plotter.set_linestyles("line dashed dotted dashdot")
|
---|
591 | # If for example four lines are overlaid e.g I Q U V
|
---|
592 | # 'I' will be 'solid', 'Q' will be 'dashed',
|
---|
593 | # U will be 'dotted' and 'V' will be 'dashdot'.
|
---|
594 | """
|
---|
595 | if isinstance(linestyles,str):
|
---|
596 | linestyles = linestyles.split()
|
---|
597 | self._plotter.palette(color=0,linestyle=0,linestyles=linestyles)
|
---|
598 | if isinstance(linewidth, float) or isinstance(linewidth, int):
|
---|
599 | from matplotlib import rc as rcp
|
---|
600 | rcp('lines', linewidth=linewidth)
|
---|
601 | if refresh and self._data: self.plot(self._data)
|
---|
602 |
|
---|
603 | def set_font(self, refresh=True,**kwargs):
|
---|
604 | """
|
---|
605 | Set font properties.
|
---|
606 | Parameters:
|
---|
607 | family: one of 'sans-serif', 'serif', 'cursive', 'fantasy', 'monospace'
|
---|
608 | style: one of 'normal' (or 'roman'), 'italic' or 'oblique'
|
---|
609 | weight: one of 'normal or 'bold'
|
---|
610 | size: the 'general' font size, individual elements can be adjusted
|
---|
611 | seperately
|
---|
612 | refresh: True (default) or False. If True, the plot is
|
---|
613 | replotted based on the new parameter setting(s).
|
---|
614 | Otherwise,the parameter(s) are set without replotting.
|
---|
615 | """
|
---|
616 | from matplotlib import rc as rcp
|
---|
617 | fdict = {}
|
---|
618 | for k,v in kwargs.iteritems():
|
---|
619 | if v:
|
---|
620 | fdict[k] = v
|
---|
621 | self._fp = FontProperties(**fdict)
|
---|
622 | if refresh and self._data: self.plot(self._data)
|
---|
623 |
|
---|
624 | def set_panellayout(self,layout=[],refresh=True):
|
---|
625 | """
|
---|
626 | Set the layout of subplots.
|
---|
627 | Parameters:
|
---|
628 | layout: a list of subplots layout in figure coordinate (0-1),
|
---|
629 | i.e., fraction of the figure width or height.
|
---|
630 | The order of elements should be:
|
---|
631 | [left, bottom, right, top, horizontal space btw panels,
|
---|
632 | vertical space btw panels].
|
---|
633 | refresh: True (default) or False. If True, the plot is
|
---|
634 | replotted based on the new parameter setting(s).
|
---|
635 | Otherwise,the parameter(s) are set without replotting.
|
---|
636 | Note
|
---|
637 | * When layout is not specified, the values are reset to the defaults
|
---|
638 | of matplotlib.
|
---|
639 | * If any element is set to be None, the current value is adopted.
|
---|
640 | """
|
---|
641 | if layout == []: self._panellayout=self._reset_panellayout()
|
---|
642 | else:
|
---|
643 | self._panellayout=[None]*6
|
---|
644 | self._panellayout[0:len(layout)]=layout
|
---|
645 | #print "panel layout set to ",self._panellayout
|
---|
646 | if refresh and self._data: self.plot(self._data)
|
---|
647 |
|
---|
648 | def _reset_panellayout(self):
|
---|
649 | ks=map(lambda x: 'figure.subplot.'+x,
|
---|
650 | ['left','bottom','right','top','hspace','wspace'])
|
---|
651 | return map(matplotlib.rcParams.get,ks)
|
---|
652 |
|
---|
653 | def plot_lines(self, linecat=None, doppler=0.0, deltachan=10, rotate=90.0,
|
---|
654 | location=None):
|
---|
655 | """
|
---|
656 | Plot a line catalog.
|
---|
657 | Parameters:
|
---|
658 | linecat: the linecatalog to plot
|
---|
659 | doppler: the velocity shift to apply to the frequencies
|
---|
660 | deltachan: the number of channels to include each side of the
|
---|
661 | line to determine a local maximum/minimum
|
---|
662 | rotate: the rotation (in degrees) )for the text label (default 90.0)
|
---|
663 | location: the location of the line annotation from the 'top',
|
---|
664 | 'bottom' or alternate (None - the default)
|
---|
665 | Notes:
|
---|
666 | If the spectrum is flagged no line will be drawn in that location.
|
---|
667 | """
|
---|
668 | if not self._data:
|
---|
669 | raise RuntimeError("No scantable has been plotted yet.")
|
---|
670 | from asap._asap import linecatalog
|
---|
671 | if not isinstance(linecat, linecatalog):
|
---|
672 | raise ValueError("'linecat' isn't of type linecatalog.")
|
---|
673 | if not self._data.get_unit().endswith("Hz"):
|
---|
674 | raise RuntimeError("Can only overlay linecatalogs when data is in frequency.")
|
---|
675 | from numpy import ma
|
---|
676 | for j in range(len(self._plotter.subplots)):
|
---|
677 | self._plotter.subplot(j)
|
---|
678 | lims = self._plotter.axes.get_xlim()
|
---|
679 | for row in range(linecat.nrow()):
|
---|
680 | # get_frequency returns MHz
|
---|
681 | base = { "GHz": 1000.0, "MHz": 1.0, "Hz": 1.0e-6 }
|
---|
682 | restf = linecat.get_frequency(row)/base[self._data.get_unit()]
|
---|
683 | c = 299792.458
|
---|
684 | freq = restf*(1.0-doppler/c)
|
---|
685 | if lims[0] < freq < lims[1]:
|
---|
686 | if location is None:
|
---|
687 | loc = 'bottom'
|
---|
688 | if row%2: loc='top'
|
---|
689 | else: loc = location
|
---|
690 | maxys = []
|
---|
691 | for line in self._plotter.axes.lines:
|
---|
692 | v = line._x
|
---|
693 | asc = v[0] < v[-1]
|
---|
694 |
|
---|
695 | idx = None
|
---|
696 | if not asc:
|
---|
697 | if v[len(v)-1] <= freq <= v[0]:
|
---|
698 | i = len(v)-1
|
---|
699 | while i>=0 and v[i] < freq:
|
---|
700 | idx = i
|
---|
701 | i-=1
|
---|
702 | else:
|
---|
703 | if v[0] <= freq <= v[len(v)-1]:
|
---|
704 | i = 0
|
---|
705 | while i<len(v) and v[i] < freq:
|
---|
706 | idx = i
|
---|
707 | i+=1
|
---|
708 | if idx is not None:
|
---|
709 | lower = idx - deltachan
|
---|
710 | upper = idx + deltachan
|
---|
711 | if lower < 0: lower = 0
|
---|
712 | if upper > len(v): upper = len(v)
|
---|
713 | s = slice(lower, upper)
|
---|
714 | y = line._y[s]
|
---|
715 | maxy = ma.maximum(y)
|
---|
716 | if isinstance( maxy, float):
|
---|
717 | maxys.append(maxy)
|
---|
718 | if len(maxys):
|
---|
719 | peak = max(maxys)
|
---|
720 | if peak > self._plotter.axes.get_ylim()[1]:
|
---|
721 | loc = 'bottom'
|
---|
722 | else:
|
---|
723 | continue
|
---|
724 | self._plotter.vline_with_label(freq, peak,
|
---|
725 | linecat.get_name(row),
|
---|
726 | location=loc, rotate=rotate)
|
---|
727 | self._plotter.show(hardrefresh=False)
|
---|
728 |
|
---|
729 |
|
---|
730 | def save(self, filename=None, orientation=None, dpi=None):
|
---|
731 | """
|
---|
732 | Save the plot to a file. The know formats are 'png', 'ps', 'eps'.
|
---|
733 | Parameters:
|
---|
734 | filename: The name of the output file. This is optional
|
---|
735 | and autodetects the image format from the file
|
---|
736 | suffix. If non filename is specified a file
|
---|
737 | called 'yyyymmdd_hhmmss.png' is created in the
|
---|
738 | current directory.
|
---|
739 | orientation: optional parameter for postscript only (not eps).
|
---|
740 | 'landscape', 'portrait' or None (default) are valid.
|
---|
741 | If None is choosen for 'ps' output, the plot is
|
---|
742 | automatically oriented to fill the page.
|
---|
743 | dpi: The dpi of the output non-ps plot
|
---|
744 | """
|
---|
745 | self._plotter.save(filename,orientation,dpi)
|
---|
746 | return
|
---|
747 |
|
---|
748 | @asaplog_post_dec
|
---|
749 | def set_mask(self, mask=None, selection=None, refresh=True):
|
---|
750 | """
|
---|
751 | Set a plotting mask for a specific polarization.
|
---|
752 | This is useful for masking out "noise" Pangle outside a source.
|
---|
753 | Parameters:
|
---|
754 | mask: a mask from scantable.create_mask
|
---|
755 | selection: the spectra to apply the mask to.
|
---|
756 | refresh: True (default) or False. If True, the plot is
|
---|
757 | replotted based on the new parameter setting(s).
|
---|
758 | Otherwise,the parameter(s) are set without replotting.
|
---|
759 | Example:
|
---|
760 | select = selector()
|
---|
761 | select.setpolstrings("Pangle")
|
---|
762 | plotter.set_mask(mymask, select)
|
---|
763 | """
|
---|
764 | if not self._data:
|
---|
765 | msg = "Can only set mask after a first call to plot()"
|
---|
766 | raise RuntimeError(msg)
|
---|
767 | if len(mask):
|
---|
768 | if isinstance(mask, list) or isinstance(mask, tuple):
|
---|
769 | self._usermask = array(mask)
|
---|
770 | else:
|
---|
771 | self._usermask = mask
|
---|
772 | if mask is None and selection is None:
|
---|
773 | self._usermask = []
|
---|
774 | self._maskselection = None
|
---|
775 | if isinstance(selection, selector):
|
---|
776 | self._maskselection = {'b': selection.get_beams(),
|
---|
777 | 's': selection.get_scans(),
|
---|
778 | 'i': selection.get_ifs(),
|
---|
779 | 'p': selection.get_pols(),
|
---|
780 | 't': [] }
|
---|
781 | else:
|
---|
782 | self._maskselection = None
|
---|
783 | if refresh: self.plot(self._data)
|
---|
784 |
|
---|
785 | def _slice_indeces(self, data):
|
---|
786 | mn = self._minmaxx[0]
|
---|
787 | mx = self._minmaxx[1]
|
---|
788 | asc = data[0] < data[-1]
|
---|
789 | start=0
|
---|
790 | end = len(data)-1
|
---|
791 | inc = 1
|
---|
792 | if not asc:
|
---|
793 | start = len(data)-1
|
---|
794 | end = 0
|
---|
795 | inc = -1
|
---|
796 | # find min index
|
---|
797 | #while start > 0 and data[start] < mn:
|
---|
798 | # start+= inc
|
---|
799 | minind=start
|
---|
800 | for ind in xrange(start,end+inc,inc):
|
---|
801 | if data[ind] > mn: break
|
---|
802 | minind=ind
|
---|
803 | # find max index
|
---|
804 | #while end > 0 and data[end] > mx:
|
---|
805 | # end-=inc
|
---|
806 | #if end > 0: end +=1
|
---|
807 | maxind=end
|
---|
808 | for ind in xrange(end,start-inc,-inc):
|
---|
809 | if data[ind] < mx: break
|
---|
810 | maxind=ind
|
---|
811 | start=minind
|
---|
812 | end=maxind
|
---|
813 | if start > end:
|
---|
814 | return end,start+1
|
---|
815 | elif start < end:
|
---|
816 | return start,end+1
|
---|
817 | else:
|
---|
818 | return start,end
|
---|
819 |
|
---|
820 | def _reset(self):
|
---|
821 | self._usermask = []
|
---|
822 | self._usermaskspectra = None
|
---|
823 | self._offset = None
|
---|
824 | self.set_selection(None, False)
|
---|
825 |
|
---|
826 | def _plot(self, scan):
|
---|
827 | savesel = scan.get_selection()
|
---|
828 | sel = savesel + self._selection
|
---|
829 | order = self._get_sortstring([self._panelling,self._stacking])
|
---|
830 | if order:
|
---|
831 | sel.set_order(order)
|
---|
832 | scan.set_selection(sel)
|
---|
833 | d = {'b': scan.getbeam, 's': scan.getscan,
|
---|
834 | 'i': scan.getif, 'p': scan.getpol, 't': scan._gettime,
|
---|
835 | 'r': int, '_r': int}
|
---|
836 |
|
---|
837 | polmodes = dict(zip(self._selection.get_pols(),
|
---|
838 | self._selection.get_poltypes()))
|
---|
839 | # this returns either a tuple of numbers or a length (ncycles)
|
---|
840 | # convert this into lengths
|
---|
841 | n0,nstack0 = self._get_selected_n(scan)
|
---|
842 | if isinstance(n0, int): n = n0
|
---|
843 | else: n = len(n0)
|
---|
844 | if isinstance(nstack0, int): nstack = nstack0
|
---|
845 | else: nstack = len(nstack0)
|
---|
846 | nptot = n
|
---|
847 | maxpanel, maxstack = 16,16
|
---|
848 | if nstack > maxstack:
|
---|
849 | msg ="Scan to be overlayed contains more than %d selections.\n" \
|
---|
850 | "Selecting first %d selections..." % (maxstack, maxstack)
|
---|
851 | asaplog.push(msg)
|
---|
852 | asaplog.post('WARN')
|
---|
853 | nstack = min(nstack,maxstack)
|
---|
854 | n = min(n,maxpanel)
|
---|
855 |
|
---|
856 | if n > 1:
|
---|
857 | ganged = rcParams['plotter.ganged']
|
---|
858 | if self._panelling == 'i':
|
---|
859 | ganged = False
|
---|
860 | if self._rows and self._cols:
|
---|
861 | n = min(n,self._rows*self._cols)
|
---|
862 | self._plotter.set_panels(rows=self._rows,cols=self._cols,
|
---|
863 | # nplots=n,ganged=ganged)
|
---|
864 | nplots=n,layout=self._panellayout,ganged=ganged)
|
---|
865 | else:
|
---|
866 | # self._plotter.set_panels(rows=n,cols=0,nplots=n,ganged=ganged)
|
---|
867 | self._plotter.set_panels(rows=n,cols=0,nplots=n,layout=self._panellayout,ganged=ganged)
|
---|
868 | else:
|
---|
869 | # self._plotter.set_panels()
|
---|
870 | self._plotter.set_panels(layout=self._panellayout)
|
---|
871 | #r = 0
|
---|
872 | r = self._rowcount
|
---|
873 | nr = scan.nrow()
|
---|
874 | a0,b0 = -1,-1
|
---|
875 | allxlim = []
|
---|
876 | allylim = []
|
---|
877 | newpanel=True
|
---|
878 | panelcount,stackcount = 0,0
|
---|
879 | while r < nr:
|
---|
880 | a = d[self._panelling](r)
|
---|
881 | b = d[self._stacking](r)
|
---|
882 | if a > a0 and panelcount < n:
|
---|
883 | if n > 1:
|
---|
884 | self._plotter.subplot(panelcount)
|
---|
885 | self._plotter.palette(0)
|
---|
886 | #title
|
---|
887 | xlab = self._abcissa and self._abcissa[panelcount] \
|
---|
888 | or scan._getabcissalabel()
|
---|
889 | if self._offset and not self._abcissa:
|
---|
890 | xlab += " (relative)"
|
---|
891 | ylab = self._ordinate and self._ordinate[panelcount] \
|
---|
892 | or scan._get_ordinate_label()
|
---|
893 | self._plotter.set_axes('xlabel', xlab)
|
---|
894 | self._plotter.set_axes('ylabel', ylab)
|
---|
895 | lbl = self._get_label(scan, r, self._panelling, self._title)
|
---|
896 | #if self._panelling == 'r': lbl = ''
|
---|
897 | if isinstance(lbl, list) or isinstance(lbl, tuple):
|
---|
898 | if 0 <= panelcount < len(lbl):
|
---|
899 | lbl = lbl[panelcount]
|
---|
900 | else:
|
---|
901 | # get default label
|
---|
902 | lbl = self._get_label(scan, r, self._panelling, None)
|
---|
903 | self._plotter.set_axes('title',lbl)
|
---|
904 | newpanel = True
|
---|
905 | stackcount = 0
|
---|
906 | panelcount += 1
|
---|
907 | if (b > b0 or newpanel) and stackcount < nstack:
|
---|
908 | y = []
|
---|
909 | if len(polmodes):
|
---|
910 | y = scan._getspectrum(r, polmodes[scan.getpol(r)])
|
---|
911 | else:
|
---|
912 | y = scan._getspectrum(r)
|
---|
913 | m = scan._getmask(r)
|
---|
914 | from numpy import logical_not, logical_and
|
---|
915 | if self._maskselection and len(self._usermask) == len(m):
|
---|
916 | if d[self._stacking](r) in self._maskselection[self._stacking]:
|
---|
917 | m = logical_and(m, self._usermask)
|
---|
918 | from numpy import ma, array
|
---|
919 | x = array(scan._getabcissa(r))
|
---|
920 | if self._offset:
|
---|
921 | x += self._offset
|
---|
922 | y = ma.masked_array(y,mask=logical_not(array(m,copy=False)))
|
---|
923 | if self._minmaxx is not None:
|
---|
924 | s,e = self._slice_indeces(x)
|
---|
925 | x = x[s:e]
|
---|
926 | y = y[s:e]
|
---|
927 | if len(x) > 1024 and rcParams['plotter.decimate']:
|
---|
928 | fac = len(x)/1024
|
---|
929 | x = x[::fac]
|
---|
930 | y = y[::fac]
|
---|
931 | llbl = self._get_label(scan, r, self._stacking, self._lmap)
|
---|
932 | if isinstance(llbl, list) or isinstance(llbl, tuple):
|
---|
933 | if 0 <= stackcount < len(llbl):
|
---|
934 | # use user label
|
---|
935 | llbl = llbl[stackcount]
|
---|
936 | else:
|
---|
937 | # get default label
|
---|
938 | llbl = self._get_label(scan, r, self._stacking, None)
|
---|
939 | self._plotter.set_line(label=llbl)
|
---|
940 | plotit = self._plotter.plot
|
---|
941 | if self._hist: plotit = self._plotter.hist
|
---|
942 | if len(x) > 0:
|
---|
943 | plotit(x,y)
|
---|
944 | xlim= self._minmaxx or [min(x),max(x)]
|
---|
945 | allxlim += xlim
|
---|
946 | ylim= self._minmaxy or [ma.minimum(y),ma.maximum(y)]
|
---|
947 | allylim += ylim
|
---|
948 | else:
|
---|
949 | xlim = self._minmaxx or []
|
---|
950 | allxlim += xlim
|
---|
951 | ylim= self._minmaxy or []
|
---|
952 | allylim += ylim
|
---|
953 | stackcount += 1
|
---|
954 | # last in colour stack -> autoscale x
|
---|
955 | if stackcount == nstack and len(allxlim) > 0:
|
---|
956 | allxlim.sort()
|
---|
957 | self._plotter.subplots[panelcount-1]['axes'].set_xlim([allxlim[0],allxlim[-1]])
|
---|
958 | # clear
|
---|
959 | allxlim =[]
|
---|
960 |
|
---|
961 | newpanel = False
|
---|
962 | a0=a
|
---|
963 | b0=b
|
---|
964 | # ignore following rows
|
---|
965 | if (panelcount == n) and (stackcount == nstack):
|
---|
966 | # last panel -> autoscale y if ganged
|
---|
967 | if rcParams['plotter.ganged'] and len(allylim) > 0:
|
---|
968 | allylim.sort()
|
---|
969 | self._plotter.set_limits(ylim=[allylim[0],allylim[-1]])
|
---|
970 | break
|
---|
971 | r+=1 # next row
|
---|
972 | ###-S
|
---|
973 | self._rowcount = r+1
|
---|
974 | self._panelcnt += panelcount
|
---|
975 | if self._plotter.figmgr.casabar:
|
---|
976 | if self._panelcnt >= nptot-1:
|
---|
977 | self._plotter.figmgr.casabar.disable_next()
|
---|
978 | else:
|
---|
979 | self._plotter.figmgr.casabar.enable_next()
|
---|
980 | #if self._panelcnt - panelcount > 0:
|
---|
981 | # self._plotter.figmgr.casabar.enable_prev()
|
---|
982 | #else:
|
---|
983 | # self._plotter.figmgr.casabar.disable_prev()
|
---|
984 | ###-E
|
---|
985 | #reset the selector to the scantable's original
|
---|
986 | scan.set_selection(savesel)
|
---|
987 |
|
---|
988 | #temporary switch-off for older matplotlib
|
---|
989 | #if self._fp is not None:
|
---|
990 | if self._fp is not None and getattr(self._plotter.figure,'findobj',False):
|
---|
991 | for o in self._plotter.figure.findobj(Text):
|
---|
992 | o.set_fontproperties(self._fp)
|
---|
993 |
|
---|
994 | def _get_sortstring(self, lorders):
|
---|
995 | d0 = {'s': 'SCANNO', 'b': 'BEAMNO', 'i':'IFNO',
|
---|
996 | 'p': 'POLNO', 'c': 'CYCLENO', 't' : 'TIME', 'r':None, '_r':None }
|
---|
997 | if not (type(lorders) == list) or not (type(lorders) == tuple):
|
---|
998 | return None
|
---|
999 | if len(lorders) > 0:
|
---|
1000 | lsorts = []
|
---|
1001 | for order in lorders:
|
---|
1002 | ssort = d0[order]
|
---|
1003 | if ssort:
|
---|
1004 | lsorts.append(ssort)
|
---|
1005 | return lsorts
|
---|
1006 | return None
|
---|
1007 |
|
---|
1008 | def set_selection(self, selection=None, refresh=True, **kw):
|
---|
1009 | """
|
---|
1010 | Parameters:
|
---|
1011 | selection: a selector object (default unset the selection)
|
---|
1012 | refresh: True (default) or False. If True, the plot is
|
---|
1013 | replotted based on the new parameter setting(s).
|
---|
1014 | Otherwise,the parameter(s) are set without replotting.
|
---|
1015 | """
|
---|
1016 | if selection is None:
|
---|
1017 | # reset
|
---|
1018 | if len(kw) == 0:
|
---|
1019 | self._selection = selector()
|
---|
1020 | else:
|
---|
1021 | # try keywords
|
---|
1022 | for k in kw:
|
---|
1023 | if k not in selector.fields:
|
---|
1024 | raise KeyError("Invalid selection key '%s', valid keys are %s" % (k, selector.fields))
|
---|
1025 | self._selection = selector(**kw)
|
---|
1026 | elif isinstance(selection, selector):
|
---|
1027 | self._selection = selection
|
---|
1028 | else:
|
---|
1029 | raise TypeError("'selection' is not of type selector")
|
---|
1030 |
|
---|
1031 | order = self._get_sortstring([self._panelling,self._stacking])
|
---|
1032 | if order:
|
---|
1033 | self._selection.set_order(order)
|
---|
1034 | if refresh and self._data: self.plot(self._data)
|
---|
1035 |
|
---|
1036 | def _get_selected_n(self, scan):
|
---|
1037 | d1 = {'b': scan.getbeamnos, 's': scan.getscannos,
|
---|
1038 | 'i': scan.getifnos, 'p': scan.getpolnos, 't': scan.ncycle,
|
---|
1039 | 'r': scan.nrow, '_r': False}
|
---|
1040 | d2 = { 'b': self._selection.get_beams(),
|
---|
1041 | 's': self._selection.get_scans(),
|
---|
1042 | 'i': self._selection.get_ifs(),
|
---|
1043 | 'p': self._selection.get_pols(),
|
---|
1044 | 't': self._selection.get_cycles(),
|
---|
1045 | 'r': False, '_r': 1}
|
---|
1046 | n = d2[self._panelling] or d1[self._panelling]()
|
---|
1047 | nstack = d2[self._stacking] or d1[self._stacking]()
|
---|
1048 | return n,nstack
|
---|
1049 |
|
---|
1050 | def _get_label(self, scan, row, mode, userlabel=None):
|
---|
1051 | if isinstance(userlabel, list) and len(userlabel) == 0:
|
---|
1052 | userlabel = " "
|
---|
1053 | pms = dict(zip(self._selection.get_pols(),self._selection.get_poltypes()))
|
---|
1054 | if len(pms):
|
---|
1055 | poleval = scan._getpollabel(scan.getpol(row),pms[scan.getpol(row)])
|
---|
1056 | else:
|
---|
1057 | poleval = scan._getpollabel(scan.getpol(row),scan.poltype())
|
---|
1058 | d = {'b': "Beam "+str(scan.getbeam(row)),
|
---|
1059 | #'s': scan._getsourcename(row),
|
---|
1060 | 's': "Scan "+str(scan.getscan(row))+\
|
---|
1061 | " ("+str(scan._getsourcename(row))+")",
|
---|
1062 | 'i': "IF"+str(scan.getif(row)),
|
---|
1063 | 'p': poleval,
|
---|
1064 | 't': str(scan.get_time(row)),
|
---|
1065 | 'r': "row "+str(row),
|
---|
1066 | #'_r': str(scan.get_time(row))+",\nIF"+str(scan.getif(row))+", "+poleval+", Beam"+str(scan.getbeam(row)) }
|
---|
1067 | '_r': "" }
|
---|
1068 | return userlabel or d[mode]
|
---|
1069 |
|
---|
1070 | def plotazel(self, scan=None, outfile=None):
|
---|
1071 | """
|
---|
1072 | plot azimuth and elevation versus time of a scantable
|
---|
1073 | """
|
---|
1074 | visible = rcParams['plotter.gui']
|
---|
1075 | from matplotlib import pylab as PL
|
---|
1076 | from matplotlib.dates import DateFormatter, timezone
|
---|
1077 | from matplotlib.dates import HourLocator, MinuteLocator,SecondLocator, DayLocator
|
---|
1078 | from matplotlib.ticker import MultipleLocator
|
---|
1079 | from numpy import array, pi
|
---|
1080 | if not visible or not self._visible:
|
---|
1081 | PL.ioff()
|
---|
1082 | from matplotlib.backends.backend_agg import FigureCanvasAgg
|
---|
1083 | PL.gcf().canvas.switch_backends(FigureCanvasAgg)
|
---|
1084 | self._data = scan
|
---|
1085 | self._outfile = outfile
|
---|
1086 | dates = self._data.get_time(asdatetime=True)
|
---|
1087 | t = PL.date2num(dates)
|
---|
1088 | tz = timezone('UTC')
|
---|
1089 | PL.cla()
|
---|
1090 | PL.ioff()
|
---|
1091 | PL.clf()
|
---|
1092 | # Adjust subplot layouts
|
---|
1093 | if len(self._panellayout) != 6:
|
---|
1094 | self.set_panellayout(refresh=False)
|
---|
1095 | lef, bot, rig, top, wsp, hsp = self._panellayout
|
---|
1096 | PL.gcf().subplots_adjust(left=lef,bottom=bot,right=rig,top=top,
|
---|
1097 | wspace=wsp,hspace=hsp)
|
---|
1098 |
|
---|
1099 | tdel = max(t) - min(t)
|
---|
1100 | ax = PL.subplot(2,1,1)
|
---|
1101 | el = array(self._data.get_elevation())*180./pi
|
---|
1102 | PL.ylabel('El [deg.]')
|
---|
1103 | dstr = dates[0].strftime('%Y/%m/%d')
|
---|
1104 | if tdel > 1.0:
|
---|
1105 | dstr2 = dates[len(dates)-1].strftime('%Y/%m/%d')
|
---|
1106 | dstr = dstr + " - " + dstr2
|
---|
1107 | majloc = DayLocator()
|
---|
1108 | minloc = HourLocator(range(0,23,12))
|
---|
1109 | timefmt = DateFormatter("%b%d")
|
---|
1110 | elif tdel > 24./60.:
|
---|
1111 | timefmt = DateFormatter('%H:%M')
|
---|
1112 | majloc = HourLocator()
|
---|
1113 | minloc = MinuteLocator(30)
|
---|
1114 | else:
|
---|
1115 | timefmt = DateFormatter('%H:%M')
|
---|
1116 | majloc = MinuteLocator(interval=5)
|
---|
1117 | minloc = SecondLocator(30)
|
---|
1118 |
|
---|
1119 | PL.title(dstr)
|
---|
1120 | if tdel == 0.0:
|
---|
1121 | th = (t - PL.floor(t))*24.0
|
---|
1122 | PL.plot(th,el,'o',markersize=2, markerfacecolor='b', markeredgecolor='b')
|
---|
1123 | else:
|
---|
1124 | PL.plot_date(t,el,'o', markersize=2, markerfacecolor='b', markeredgecolor='b',tz=tz)
|
---|
1125 | #ax.grid(True)
|
---|
1126 | ax.xaxis.set_major_formatter(timefmt)
|
---|
1127 | ax.xaxis.set_major_locator(majloc)
|
---|
1128 | ax.xaxis.set_minor_locator(minloc)
|
---|
1129 | ax.yaxis.grid(True)
|
---|
1130 | yloc = MultipleLocator(30)
|
---|
1131 | ax.set_ylim(0,90)
|
---|
1132 | ax.yaxis.set_major_locator(yloc)
|
---|
1133 | if tdel > 1.0:
|
---|
1134 | labels = ax.get_xticklabels()
|
---|
1135 | # PL.setp(labels, fontsize=10, rotation=45)
|
---|
1136 | PL.setp(labels, fontsize=10)
|
---|
1137 |
|
---|
1138 | # Az plot
|
---|
1139 | az = array(self._data.get_azimuth())*180./pi
|
---|
1140 | if min(az) < 0:
|
---|
1141 | for irow in range(len(az)):
|
---|
1142 | if az[irow] < 0: az[irow] += 360.0
|
---|
1143 |
|
---|
1144 | ax2 = PL.subplot(2,1,2)
|
---|
1145 | #PL.xlabel('Time (UT [hour])')
|
---|
1146 | PL.ylabel('Az [deg.]')
|
---|
1147 | if tdel == 0.0:
|
---|
1148 | PL.plot(th,az,'o',markersize=2, markeredgecolor='b',markerfacecolor='b')
|
---|
1149 | else:
|
---|
1150 | PL.plot_date(t,az,'o', markersize=2,markeredgecolor='b',markerfacecolor='b',tz=tz)
|
---|
1151 | ax2.xaxis.set_major_formatter(timefmt)
|
---|
1152 | ax2.xaxis.set_major_locator(majloc)
|
---|
1153 | ax2.xaxis.set_minor_locator(minloc)
|
---|
1154 | #ax2.grid(True)
|
---|
1155 | ax2.set_ylim(0,360)
|
---|
1156 | ax2.yaxis.grid(True)
|
---|
1157 | #hfmt = DateFormatter('%H')
|
---|
1158 | #hloc = HourLocator()
|
---|
1159 | yloc = MultipleLocator(60)
|
---|
1160 | ax2.yaxis.set_major_locator(yloc)
|
---|
1161 | if tdel > 1.0:
|
---|
1162 | labels = ax2.get_xticklabels()
|
---|
1163 | PL.setp(labels, fontsize=10)
|
---|
1164 | PL.xlabel('Time (UT [day])')
|
---|
1165 | else:
|
---|
1166 | PL.xlabel('Time (UT [hour])')
|
---|
1167 |
|
---|
1168 | PL.ion()
|
---|
1169 | PL.draw()
|
---|
1170 | if (self._outfile is not None):
|
---|
1171 | PL.savefig(self._outfile)
|
---|
1172 |
|
---|
1173 | def plotpointing(self, scan=None, outfile=None):
|
---|
1174 | """
|
---|
1175 | plot telescope pointings
|
---|
1176 | """
|
---|
1177 | visible = rcParams['plotter.gui']
|
---|
1178 | from matplotlib import pylab as PL
|
---|
1179 | from numpy import array, pi
|
---|
1180 | if not visible or not self._visible:
|
---|
1181 | PL.ioff()
|
---|
1182 | from matplotlib.backends.backend_agg import FigureCanvasAgg
|
---|
1183 | PL.gcf().canvas.switch_backends(FigureCanvasAgg)
|
---|
1184 | self._data = scan
|
---|
1185 | self._outfile = outfile
|
---|
1186 | dir = array(self._data.get_directionval()).transpose()
|
---|
1187 | ra = dir[0]*180./pi
|
---|
1188 | dec = dir[1]*180./pi
|
---|
1189 | PL.cla()
|
---|
1190 | #PL.ioff()
|
---|
1191 | PL.clf()
|
---|
1192 | # Adjust subplot layouts
|
---|
1193 | if len(self._panellayout) != 6:
|
---|
1194 | self.set_panellayout(refresh=False)
|
---|
1195 | lef, bot, rig, top, wsp, hsp = self._panellayout
|
---|
1196 | PL.gcf().subplots_adjust(left=lef,bottom=bot,right=rig,top=top,
|
---|
1197 | wspace=wsp,hspace=hsp)
|
---|
1198 | ax = PL.gca()
|
---|
1199 | #ax = PL.axes([0.1,0.1,0.8,0.8])
|
---|
1200 | #ax = PL.axes([0.1,0.1,0.8,0.8])
|
---|
1201 | ax.set_aspect('equal')
|
---|
1202 | PL.plot(ra, dec, 'b,')
|
---|
1203 | PL.xlabel('RA [deg.]')
|
---|
1204 | PL.ylabel('Declination [deg.]')
|
---|
1205 | PL.title('Telescope pointings')
|
---|
1206 | [xmin,xmax,ymin,ymax] = PL.axis()
|
---|
1207 | PL.axis([xmax,xmin,ymin,ymax])
|
---|
1208 | #PL.ion()
|
---|
1209 | PL.draw()
|
---|
1210 | if (self._outfile is not None):
|
---|
1211 | PL.savefig(self._outfile)
|
---|
1212 |
|
---|
1213 | # plot total power data
|
---|
1214 | # plotting in time is not yet implemented..
|
---|
1215 | @asaplog_post_dec
|
---|
1216 | def plottp(self, scan=None, outfile=None):
|
---|
1217 | if self._plotter.is_dead:
|
---|
1218 | if hasattr(self._plotter.figmgr,'casabar'):
|
---|
1219 | del self._plotter.figmgr.casabar
|
---|
1220 | self._plotter = self._newplotter()
|
---|
1221 | self._plotter.figmgr.casabar=self._newcasabar()
|
---|
1222 | self._plotter.hold()
|
---|
1223 | self._plotter.clear()
|
---|
1224 | from asap import scantable
|
---|
1225 | if not self._data and not scan:
|
---|
1226 | msg = "Input is not a scantable"
|
---|
1227 | raise TypeError(msg)
|
---|
1228 | if isinstance(scan, scantable):
|
---|
1229 | if self._data is not None:
|
---|
1230 | if scan != self._data:
|
---|
1231 | self._data = scan
|
---|
1232 | # reset
|
---|
1233 | self._reset()
|
---|
1234 | else:
|
---|
1235 | self._data = scan
|
---|
1236 | self._reset()
|
---|
1237 | # ranges become invalid when abcissa changes?
|
---|
1238 | #if self._abcunit and self._abcunit != self._data.get_unit():
|
---|
1239 | # self._minmaxx = None
|
---|
1240 | # self._minmaxy = None
|
---|
1241 | # self._abcunit = self._data.get_unit()
|
---|
1242 | # self._datamask = None
|
---|
1243 |
|
---|
1244 | # Adjust subplot layouts
|
---|
1245 | if len(self._panellayout) !=6: self.set_panellayout(refresh=False)
|
---|
1246 | lef, bot, rig, top, wsp, hsp = self._panellayout
|
---|
1247 | self._plotter.figure.subplots_adjust(
|
---|
1248 | left=lef,bottom=bot,right=rig,top=top,wspace=wsp,hspace=hsp)
|
---|
1249 | if self._plotter.figmgr.casabar: self._plotter.figmgr.casabar.disable_button()
|
---|
1250 | self._plottp(self._data)
|
---|
1251 | if self._minmaxy is not None:
|
---|
1252 | self._plotter.set_limits(ylim=self._minmaxy)
|
---|
1253 | self._plotter.release()
|
---|
1254 | self._plotter.tidy()
|
---|
1255 | self._plotter.show(hardrefresh=False)
|
---|
1256 | return
|
---|
1257 |
|
---|
1258 | def _plottp(self,scan):
|
---|
1259 | """
|
---|
1260 | private method for plotting total power data
|
---|
1261 | """
|
---|
1262 | from numpy import ma, array, arange, logical_not
|
---|
1263 | r=0
|
---|
1264 | nr = scan.nrow()
|
---|
1265 | a0,b0 = -1,-1
|
---|
1266 | allxlim = []
|
---|
1267 | allylim = []
|
---|
1268 | y=[]
|
---|
1269 | self._plotter.set_panels()
|
---|
1270 | self._plotter.palette(0)
|
---|
1271 | #title
|
---|
1272 | #xlab = self._abcissa and self._abcissa[panelcount] \
|
---|
1273 | # or scan._getabcissalabel()
|
---|
1274 | #ylab = self._ordinate and self._ordinate[panelcount] \
|
---|
1275 | # or scan._get_ordinate_label()
|
---|
1276 | xlab = self._abcissa or 'row number' #or Time
|
---|
1277 | ylab = self._ordinate or scan._get_ordinate_label()
|
---|
1278 | self._plotter.set_axes('xlabel',xlab)
|
---|
1279 | self._plotter.set_axes('ylabel',ylab)
|
---|
1280 | lbl = self._get_label(scan, r, 's', self._title)
|
---|
1281 | if isinstance(lbl, list) or isinstance(lbl, tuple):
|
---|
1282 | # if 0 <= panelcount < len(lbl):
|
---|
1283 | # lbl = lbl[panelcount]
|
---|
1284 | # else:
|
---|
1285 | # get default label
|
---|
1286 | lbl = self._get_label(scan, r, self._panelling, None)
|
---|
1287 | self._plotter.set_axes('title',lbl)
|
---|
1288 | y=array(scan._get_column(scan._getspectrum,-1))
|
---|
1289 | m = array(scan._get_column(scan._getmask,-1))
|
---|
1290 | y = ma.masked_array(y,mask=logical_not(array(m,copy=False)))
|
---|
1291 | x = arange(len(y))
|
---|
1292 | # try to handle spectral data somewhat...
|
---|
1293 | l,m = y.shape
|
---|
1294 | if m > 1:
|
---|
1295 | y=y.mean(axis=1)
|
---|
1296 | plotit = self._plotter.plot
|
---|
1297 | llbl = self._get_label(scan, r, self._stacking, None)
|
---|
1298 | self._plotter.set_line(label=llbl)
|
---|
1299 | if len(x) > 0:
|
---|
1300 | plotit(x,y)
|
---|
1301 |
|
---|
1302 |
|
---|
1303 | # forwards to matplotlib.Figure.text
|
---|
1304 | def figtext(self, *args, **kwargs):
|
---|
1305 | """
|
---|
1306 | Add text to figure at location x,y (relative 0-1 coords).
|
---|
1307 | This method forwards *args and **kwargs to a Matplotlib method,
|
---|
1308 | matplotlib.Figure.text.
|
---|
1309 | See the method help for detailed information.
|
---|
1310 | """
|
---|
1311 | self._plotter.text(*args, **kwargs)
|
---|
1312 | # end matplotlib.Figure.text forwarding function
|
---|
1313 |
|
---|
1314 |
|
---|
1315 | # printing header information
|
---|
1316 | @asaplog_post_dec
|
---|
1317 | def print_header(self, plot=True, fontsize=9, logger=False, selstr='', extrastr=''):
|
---|
1318 | """
|
---|
1319 | print data (scantable) header on the plot and/or logger.
|
---|
1320 | Parameters:
|
---|
1321 | plot: whether or not print header info on the plot.
|
---|
1322 | fontsize: header font size (valid only plot=True)
|
---|
1323 | autoscale: whether or not autoscale the plot (valid only plot=True)
|
---|
1324 | logger: whether or not print header info on the logger.
|
---|
1325 | selstr: additional selection string (not verified)
|
---|
1326 | extrastr: additional string to print (not verified)
|
---|
1327 | """
|
---|
1328 | if not plot and not logger:
|
---|
1329 | return
|
---|
1330 | if not self._data:
|
---|
1331 | raise RuntimeError("No scantable has been set yet.")
|
---|
1332 | # Now header will be printed on plot and/or logger.
|
---|
1333 | # Get header information and format it.
|
---|
1334 | ssum=self._data.__str__()
|
---|
1335 | # Print Observation header to the upper-left corner of plot
|
---|
1336 | if plot:
|
---|
1337 | headstr=[ssum[ssum.find('Observer:'):ssum.find('Flux Unit:')]]
|
---|
1338 | headstr.append(ssum[ssum.find('Beams:'):ssum.find('Observer:')]
|
---|
1339 | +ssum[ssum.find('Rest Freqs:'):ssum.find('Abcissa:')])
|
---|
1340 | if extrastr != '': headstr[0]=extrastr+'\n'+headstr[0]
|
---|
1341 | #headstr[1]='Data File: '+(filestr or 'unknown')+'\n'+headstr[1]
|
---|
1342 | ssel='***Selections***\n'+(selstr+self._data.get_selection().__str__() or 'none')
|
---|
1343 | headstr.append(ssel)
|
---|
1344 | nstcol=len(headstr)
|
---|
1345 |
|
---|
1346 | self._plotter.hold()
|
---|
1347 | for i in range(nstcol):
|
---|
1348 | self._plotter.figure.text(0.03+float(i)/nstcol,0.98,
|
---|
1349 | headstr[i],
|
---|
1350 | horizontalalignment='left',
|
---|
1351 | verticalalignment='top',
|
---|
1352 | fontsize=fontsize)
|
---|
1353 | import time
|
---|
1354 | self._plotter.figure.text(0.99,0.0,
|
---|
1355 | time.strftime("%a %d %b %Y %H:%M:%S %Z"),
|
---|
1356 | horizontalalignment='right',
|
---|
1357 | verticalalignment='bottom',fontsize=8)
|
---|
1358 | self._plotter.release()
|
---|
1359 | del headstr, ssel
|
---|
1360 | if logger:
|
---|
1361 | asaplog.push("----------------\n Plot Summary\n----------------")
|
---|
1362 | asaplog.push(extrastr)
|
---|
1363 | asaplog.push(ssum[ssum.find('Beams:'):])
|
---|
1364 | del ssum
|
---|