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Diffstat (limited to 'gr-wxgui/python/wxgui/plotter/common.py')
| -rw-r--r-- | gr-wxgui/python/wxgui/plotter/common.py | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/gr-wxgui/python/wxgui/plotter/common.py b/gr-wxgui/python/wxgui/plotter/common.py deleted file mode 100644 index c296b1fa79..0000000000 --- a/gr-wxgui/python/wxgui/plotter/common.py +++ /dev/null @@ -1,149 +0,0 @@ -# -# Copyright 2009 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 3, or (at your option) -# any later version. -# -# GNU Radio is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -import threading -import time -import math -import wx - -################################################## -# Number formatting -################################################## -def get_exp(num): - """ - Get the exponent of the number in base 10. - - Args: - num: the floating point number - - Returns: - the exponent as an integer - """ - if num == 0: return 0 - return int(math.floor(math.log10(abs(num)))) - -def get_si_components(num): - """ - Get the SI units for the number. - Extract the coeff and exponent of the number. - The exponent will be a multiple of 3. - - Args: - num: the floating point number - - Returns: - the tuple coeff, exp, prefix - """ - num = float(num) - exp = get_exp(num) - exp -= exp%3 - exp = min(max(exp, -24), 24) #bounds on SI table below - prefix = { - 24: 'Y', 21: 'Z', - 18: 'E', 15: 'P', - 12: 'T', 9: 'G', - 6: 'M', 3: 'k', - 0: '', - -3: 'm', -6: 'u', - -9: 'n', -12: 'p', - -15: 'f', -18: 'a', - -21: 'z', -24: 'y', - }[exp] - coeff = num/10**exp - return coeff, exp, prefix - -def sci_format(num): - """ - Format a floating point number into scientific notation. - - Args: - num: the number to format - - Returns: - a label string - """ - coeff, exp, prefix = get_si_components(num) - if -3 <= exp < 3: return '%g'%num - return '%.3ge%d'%(coeff, exp) - -def eng_format(num, units=''): - """ - Format a floating point number into engineering notation. - - Args: - num: the number to format - units: the units to append - - Returns: - a label string - """ - coeff, exp, prefix = get_si_components(num) - if -3 <= exp < 3: return '%g'%num - return '%g%s%s%s'%(coeff, units and ' ' or '', prefix, units) - -################################################## -# Interface with thread safe lock/unlock -################################################## -class mutex(object): - _lock = threading.Lock() - def lock(self): self._lock.acquire() - def unlock(self): self._lock.release() - -################################################## -# Periodic update thread for point label -################################################## -class point_label_thread(threading.Thread, mutex): - - def __init__(self, plotter): - self._plotter = plotter - self._coor_queue = list() - #bind plotter mouse events - self._plotter.Bind(wx.EVT_MOTION, lambda evt: self.enqueue(evt.GetPosition())) - self._plotter.Bind(wx.EVT_LEAVE_WINDOW, lambda evt: self.enqueue(None)) - self._plotter.Bind(wx.EVT_RIGHT_DOWN, lambda evt: plotter.enable_point_label(not plotter.enable_point_label())) - self._plotter.Bind(wx.EVT_LEFT_DOWN, lambda evt: plotter.call_freq_callback(evt.GetPosition())) - #start the thread - threading.Thread.__init__(self) - self.start() - - def enqueue(self, coor): - self.lock() - self._coor_queue.append(coor) - self.unlock() - - def run(self): - last_ts = time.time() - last_coor = coor = None - try: - while True: - time.sleep(1.0/30.0) - self.lock() - #get most recent coor change - if self._coor_queue: - coor = self._coor_queue[-1] - self._coor_queue = list() - self.unlock() - #update if coor change, or enough time expired - if last_coor != coor or (time.time() - last_ts) > (1.0/2.0): - self._plotter.set_point_label_coordinate(coor) - last_coor = coor - last_ts = time.time() - except wx.PyDeadObjectError: pass |