diff options
Diffstat (limited to 'gnuradio-core/src/utils/gr_plot_const.py')
| -rwxr-xr-x | gnuradio-core/src/utils/gr_plot_const.py | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/gnuradio-core/src/utils/gr_plot_const.py b/gnuradio-core/src/utils/gr_plot_const.py index bbcbb85cc..9ec75ddb9 100755 --- a/gnuradio-core/src/utils/gr_plot_const.py +++ b/gnuradio-core/src/utils/gr_plot_const.py @@ -35,6 +35,9 @@ class draw_constellation: self.start = options.start self.sample_rate = options.sample_rate + self.datatype = scipy.complex64 + self.sizeof_data = self.datatype().nbytes # number of bytes per sample in file + self.axis_font_size = 16 self.label_font_size = 18 self.title_font_size = 20 @@ -68,8 +71,8 @@ class draw_constellation: show() def get_data(self): - self.text_file_pos.set_text("File Position: %d" % (self.hfile.tell()//8)) - iq = scipy.fromfile(self.hfile, dtype=scipy.complex64, count=self.block_length) + self.text_file_pos.set_text("File Position: %d" % (self.hfile.tell()//self.sizeof_data)) + iq = scipy.fromfile(self.hfile, dtype=self.datatype, count=self.block_length) #print "Read in %d items" % len(iq) if(len(iq) == 0): print "End of File" @@ -81,7 +84,7 @@ class draw_constellation: def make_plots(self): # if specified on the command-line, set file pointer - self.hfile.seek(16*self.start, 1) + self.hfile.seek(self.sizeof_data*self.start, 1) self.get_data() @@ -150,8 +153,8 @@ class draw_constellation: def step_backward(self): # Step back in file position - if(self.hfile.tell() >= 16*self.block_length ): - self.hfile.seek(-16*self.block_length, 1) + if(self.hfile.tell() >= 2*self.sizeof_data*self.block_length ): + self.hfile.seek(-2*self.sizeof_data*self.block_length, 1) else: self.hfile.seek(-self.hfile.tell(),1) self.get_data() |