1 # Copyright (C) 2010 W. Trevor King <wking@drexel.edu>
3 # This file is part of Hooke.
5 # Hooke is free software: you can redistribute it and/or modify it
6 # under the terms of the GNU Lesser General Public License as
7 # published by the Free Software Foundation, either version 3 of the
8 # License, or (at your option) any later version.
10 # Hooke is distributed in the hope that it will be useful, but WITHOUT
11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
13 # Public License for more details.
15 # You should have received a copy of the GNU Lesser General Public
16 # License along with Hooke. If not, see
17 # <http://www.gnu.org/licenses/>.
20 >>> from hooke.hooke import Hooke, HookeRunner
23 >>> h = r.run_lines(h, ['load_playlist test/data/test']) # doctest: +ELLIPSIS
24 <FilePlaylist test.hkp>
27 >>> h = r.run_lines(h,
28 ... ['difference --block_A retract --block_B approach --column_A "deflection (m)"']
29 ... ) # doctest: +ELLIPSIS, +REPORT_UDIFF
32 >>> curve = h.playlists.current().current()
33 >>> retract = curve.data[1]
34 >>> retract.info['columns']
35 ['z piezo (m)', 'deflection (m)', 'difference of retract deflection and approach deflection (m)']
36 >>> retract[:5,-1] # doctest: +ELLIPSIS
37 Data([ -3.898...e-09, -4.193...e-09, -4.420...e-09,
38 -4.782...e-09, -5.100...e-09])
39 >>> retract[-5:,-1] # doctest: +ELLIPSIS
40 Data([ 4.080...e-10, 2.040...e-10, 4.533...e-10,
41 5.213...e-10, 1.088...e-09])
43 Note the differences are not near zero because the z piezo position
44 runs in opposite directions for the two blocks.