diff options
Diffstat (limited to 'gnuradio-core/src/python/gnuradio/eng_notation.py')
-rw-r--r-- | gnuradio-core/src/python/gnuradio/eng_notation.py | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/gnuradio-core/src/python/gnuradio/eng_notation.py b/gnuradio-core/src/python/gnuradio/eng_notation.py deleted file mode 100644 index d23f9005f0..0000000000 --- a/gnuradio-core/src/python/gnuradio/eng_notation.py +++ /dev/null @@ -1,74 +0,0 @@ -# -# Copyright 2003 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. -# -""" -Display numbers as strings using engineering notation. -""" - -scale_factor = {} -scale_factor['E'] = 1e18 -scale_factor['P'] = 1e15 -scale_factor['T'] = 1e12 -scale_factor['G'] = 1e9 -scale_factor['M'] = 1e6 -scale_factor['k'] = 1e3 -scale_factor['m'] = 1e-3 -scale_factor['u'] = 1e-6 -scale_factor['n'] = 1e-9 -scale_factor['p'] = 1e-12 -scale_factor['f'] = 1e-15 -scale_factor['a'] = 1e-18 - -def num_to_str (n): - '''Convert a number to a string in engineering notation. E.g., 5e-9 -> 5n''' - m = abs(n) - if m >= 1e9: - return "%gG" % (n * 1e-9) - elif m >= 1e6: - return "%gM" % (n * 1e-6) - elif m >= 1e3: - return "%gk" % (n * 1e-3) - elif m >= 1: - return "%g" % (n) - elif m >= 1e-3: - return "%gm" % (n * 1e3) - elif m >= 1e-6: - return "%gu" % (n * 1e6) # where's that mu when you need it (unicode?) - elif m >= 1e-9: - return "%gn" % (n * 1e9) - elif m >= 1e-12: - return "%gp" % (n * 1e12) - elif m >= 1e-15: - return "%gf" % (n * 1e15) - else: - return "%g" % (n) - - -def str_to_num (value): - '''Convert a string in engineering notation to a number. E.g., '15m' -> 15e-3''' - try: - scale = 1.0 - suffix = value[-1] - if scale_factor.has_key (suffix): - return float (value[0:-1]) * scale_factor[suffix] - return float (value) - except: - raise RuntimeError ( - "Invalid engineering notation value: %r" % (value,)) |