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83 lines
2.5 KiB
83 lines
2.5 KiB
from pyrocko.gui.snuffling import Snuffling, Param, Switch
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from collections import defaultdict
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import copy
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import numpy as num
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class MarkerStack(Snuffling):
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'''
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<html>
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<head>
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<style type="text/css">
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body { margin-left:10px };
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</style>
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</head>
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<body>
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<h2>Stack channels using selected markers</h2>
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Data segments are chopped using selected markers and padded as defined
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by 'Tmin padding' and 'Tmax padding'.
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</body>
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</html>
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'''
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def setup(self):
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self.set_name('Stack by markers')
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self.add_parameter(Param(
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'Tmin padding', 'tmin_pad', 1., 0., 100.))
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self.add_parameter(Param(
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'Tmax padding', 'tmax_pad', 1., 0., 600.))
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self.add_parameter(Switch('Normalize', 'normalize', False))
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self.add_parameter(Switch('Debug', 'debug', False))
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def call(self):
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self.cleanup()
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stencils = copy.deepcopy(self.get_selected_markers())
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for m in stencils:
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m.tmin -= self.tmin_pad
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m.tmax += self.tmax_pad
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t_first = min([m.tmin for m in stencils])
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pile = self.get_pile()
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stacks = defaultdict()
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nstacks = defaultdict()
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for m in stencils:
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for traces in pile.chopper(
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tmin=m.tmin,
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tmax=m.tmax,
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trace_selector=lambda tr: m.match_nslc(tr.nslc_id)):
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for tr in traces:
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nstacks.setdefault(tr.nslc_id, 0)
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nstacks[tr.nslc_id] += 1
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stack = stacks.get(tr.nslc_id, tr.copy(data=False))
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stack.ydata = stack.ydata.astype(num.float)
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stack.ydata -= num.mean(stack.ydata)
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print('stacking %s ' % tr)
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tr.shift(-(tr.tmin - t_first))
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if self.debug:
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print('adding trace:\n %s' % tr)
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self.add_trace(tr.copy())
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self.add_trace(tr)
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stack.add(tr)
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stacks[tr.nslc_id] = stack
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for nslc_id, s in stacks.items():
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if self.normalize:
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s.ydata /= nstacks[nslc_id]
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s.set_codes(location=s.location+'STACK')
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ymean = num.mean(s.ydata)
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s.ydata[0] = ymean
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s.ydata[-1] = ymean
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self.add_traces(stacks.values())
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def __snufflings__():
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'''Returns a list of snufflings to be exported by this module.'''
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return [MarkerStack()]
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