source: python/aubio/gnuplot.py @ 20f9748

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since 20f9748 was 96fb8ad, checked in by Paul Brossier <piem@altern.org>, 20 years ago

import 0.1.7.1

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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
23__notesheight = 0.25
24
25
26from numarray import *
27import Gnuplot, Gnuplot.funcutils
28
29def plotnote(la,title=None) :
30        if la[0,:].size() == 3:
31                d = plotnote_withends(la, plot_title=title)
32        else: 
33            # scale data if in freq (for REF.txt files)
34            if max(la[:,1] > 128 ):
35                print "scaling frequency data to midi range"
36                la[:,1] /= 6.875
37                la[:,1] = log(la[:,1])/0.6931
38                la[:,1] *= 12
39                la[:,1] -= 3
40            d = plotnote_withoutends(la, plot_title=title)
41        return d
42
43def plotnote_multi(lalist,title=None,fileout=None) :
44        d=list()
45        for i in range(len(lalist)):
46            d.append(plotnote(lalist[i], title=title))
47        return d
48       
49
50def plotnote_withends(la,plot_title=None) :
51        d=[]
52
53        x_widths = array(la[:,1]-la[:,0])/2.
54
55        d.append(Gnuplot.Data(
56                la[:,0]+x_widths,               # x centers
57                la[:,2],                        # y centers
58                x_widths,                       # x errors
59                __notesheight*ones(len(la)      # y errors
60                ),
61                title=plot_title,with=('boxxyerrorbars fs 3')))
62
63        return d
64
65
66def plotnote_withoutends(la,plot_title=None) :
67        """ bug: fails drawing last note """
68        d=[]
69
70        x_widths = array(la[1:,0]-la[:-1,0])/2;
71
72        d.append(Gnuplot.Data(
73                la[:-1,0]+x_widths,             # x centers
74                la[:-1,1],                      # y centers
75                x_widths,                       # x errors
76                __notesheight*ones(len(la)-1    # y errors
77                ), 
78                title=plot_title,with=('boxxyerrorbars fs 3')))
79
80        return d
81
82def plotnote_do(d,fileout=None):
83    g = Gnuplot.Gnuplot(debug=1, persist=1)
84    g.gnuplot('set style fill solid border 1; \
85    set size ratio 1/6; \
86    set boxwidth 0.9 relative; \
87    set mxtics 2.5; \
88    set mytics 2.5; \
89    set xtics 5; \
90    set ytics 1; \
91    set grid xtics ytics mxtics mytics')
92
93    g.xlabel('Time (s)')
94    g.ylabel('Midi pitch')
95    # do the plot
96    #g.gnuplot('set multiplot')
97    #for i in d:
98    g.plot(d[0])
99    #g.gnuplot('set nomultiplot')
100    if fileout != None:
101        g.hardcopy(fileout, enhanced=1, color=0)
102
103
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