source: python/aubio/plot/notes.py @ e7a7794

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchpitchshiftsamplertimestretchyinfft+
Last change on this file since e7a7794 was e7a7794, checked in by Paul Brossier <piem@piem.org>, 11 years ago

python: finish getting rid of numarray

  • Property mode set to 100644
File size: 3.0 KB
Line 
1"""Copyright (C) 2004 Paul Brossier <piem@altern.org>
2print aubio.__LICENSE__ for the terms of use
3"""
4
5__LICENSE__ = """\
6         Copyright (C) 2004 Paul Brossier <piem@altern.org>
7
8         This program is free software; you can redistribute it and/or modify
9         it under the terms of the GNU General Public License as published by
10         the Free Software Foundation; either version 2 of the License, or
11         (at your option) any later version.
12
13         This program is distributed in the hope that it will be useful,
14         but WITHOUT ANY WARRANTY; without even the implied warranty of
15         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16         GNU General Public License for more details.
17
18         You should have received a copy of the GNU General Public License
19         along with this program; if not, write to the Free Software
20         Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21"""
22
23def plotnote(la,title=None) :
24        if la[0,:].size() == 3:
25                d = plotnote_withends(la, plot_title=title)
26        else: 
27            # scale data if in freq (for REF.txt files)
28            if max(la[:,1] > 128 ):
29                print "scaling frequency data to midi range"
30                la[:,1] /= 6.875
31                la[:,1] = log(la[:,1])/0.6931
32                la[:,1] *= 12
33                la[:,1] -= 3
34            d = plotnote_withoutends(la, plot_title=title)
35        return d
36
37def plotnote_multi(lalist,title=None,fileout=None) :
38        d=list()
39        for i in range(len(lalist)):
40            d.append(plotnote(lalist[i], title=title))
41        return d
42       
43
44def plotnote_withends(la,plot_title=None) :
45        from numpy import array
46        import Gnuplot, Gnuplot.funcutils
47        d=[]
48        x_widths = array(la[:,1]-la[:,0])/2.
49        d.append(Gnuplot.Data(
50                la[:,0]+x_widths,               # x centers
51                la[:,2],                        # y centers
52                x_widths,                       # x errors
53                __notesheight*ones(len(la)),    # y errors
54                title=plot_title,with_=('boxxyerrorbars fs 3')))
55        return d
56
57
58def plotnote_withoutends(la,plot_title=None) :
59        """ bug: fails drawing last note """
60        from numpy import array
61        import Gnuplot, Gnuplot.funcutils
62        d=[]
63        x_widths = array(la[1:,0]-la[:-1,0])/2;
64        d.append(Gnuplot.Data(
65                la[:-1,0]+x_widths,             # x centers
66                la[:-1,1],                      # y centers
67                x_widths,                       # x errors
68                __notesheight*ones(len(la)-1),  # y errors
69                title=plot_title,with_=('boxxyerrorbars fs 3')))
70        return d
71
72def plotnote_do(d,fileout=None):
73    import Gnuplot, Gnuplot.funcutils
74    g = Gnuplot.Gnuplot(debug=1, persist=1)
75    g.gnuplot('set style fill solid border 1; \
76    set size ratio 1/6; \
77    set boxwidth 0.9 relative; \
78    set mxtics 2.5; \
79    set mytics 2.5; \
80    set xtics 5; \
81    set ytics 1; \
82    set grid xtics ytics mxtics mytics')
83
84    g.xlabel('Time (s)')
85    g.ylabel('Midi pitch')
86    # do the plot
87    #g.gnuplot('set multiplot')
88    #for i in d:
89    g.plot(d[0])
90    #g.gnuplot('set nomultiplot')
91    if fileout != None:
92        g.hardcopy(fileout, enhanced=1, color=0)
93
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