def add_negtrace(self):
peaks = find_peaks(self.tracepoints, len(self.apertures['neg'])+1, \
tracedir = self.trace_axis, pn='neg')
#new_peak = float(peaks[-1])
new_peak = float(peaks)
peakheight = interp_x(self.tplot.points, new_peak)
plot = MeshLinePlot(color=[1,0,0,1], points=[(new_peak, 0), (new_peak, peakheight)])
self.ids.the_graph.add_plot(plot)
newspin = ApertureSlider(aperture_line = plot, tfscreen = self)
newspin.slider.range = [0, len(self.tracepoints)-1]
newspin.slider.step = 0.1
newspin.slider.value = new_peak
newspin.trash.bind(on_press = lambda x: self.remtrace('neg',newspin))
self.ids.negtrace.add_widget(newspin)
self.apertures['neg'].append(newspin)
def fix_line(self, val):
top_y = interp_x(self.plot_points, val)
self.aperture_line.points = [(val, 0), (val, top_y)]
