From 0c743f55580109e868610f534b5b9310988f8a23 Mon Sep 17 00:00:00 2001 From: trondeau Date: Sat, 25 Oct 2008 21:47:50 +0000 Subject: [PATCH] fixing time axes and zoom function git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9845 221aa14e-8319-0410-a670-987f0aec2ac5 --- gr-utils/src/python/gr_plot_fft.py | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/gr-utils/src/python/gr_plot_fft.py b/gr-utils/src/python/gr_plot_fft.py index fa205e69..69953f68 100755 --- a/gr-utils/src/python/gr_plot_fft.py +++ b/gr-utils/src/python/gr_plot_fft.py @@ -87,8 +87,8 @@ class gr_plot_fft: show() def get_data(self): - position = self.hfile.tell()/self.sizeof_data - self.text_file_pos.set_text("File Position: %d" % (position)) + self.position = self.hfile.tell()/self.sizeof_data + self.text_file_pos.set_text("File Position: %d" % (self.position)) self.iq = scipy.fromfile(self.hfile, dtype=self.datatype, count=self.block_length) #print "Read in %d items" % len(self.iq) if(len(self.iq) == 0): @@ -97,8 +97,8 @@ class gr_plot_fft: self.iq_fft = self.dofft(self.iq) tstep = 1.0 / self.sample_rate - self.time = [tstep*position + tstep*(position + i) for i in xrange(len(self.iq))] - + self.time = [tstep*(self.position + i) for i in xrange(len(self.iq))] + self.freq = self.calc_freq(self.time, self.sample_rate) def dofft(self, iq): @@ -160,15 +160,15 @@ class gr_plot_fft: self.draw_time() self.draw_fft() + self.xlim = self.sp_iq.get_xlim() draw() def zoom(self, event): newxlim = self.sp_iq.get_xlim() - #if(newxlim != self.xlim): - if(0): + if(newxlim != self.xlim): self.xlim = newxlim - xmin = max(0, int(ceil(self.sample_rate*self.xlim[0]))) - xmax = min(int(ceil(self.sample_rate*self.xlim[1])), len(self.iq)) + xmin = max(0, int(ceil(self.sample_rate*(self.xlim[0] - self.position)))) + xmax = min(int(ceil(self.sample_rate*(self.xlim[1] - self.position))), len(self.iq)) iq = self.iq[xmin : xmax] time = self.time[xmin : xmax] -- 2.39.5