File: pyotableobject1.html

package info (click to toggle)
python-pyo 1.0.6-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 52,332 kB
  • sloc: python: 135,133; ansic: 127,822; javascript: 16,116; sh: 395; makefile: 388; cpp: 242
file content (174 lines) | stat: -rw-r--r-- 13,029 bytes parent folder | download | duplicates (2) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
 

<!DOCTYPE html>

<html lang="en">
<head>
<meta charset="utf-8"/>
<meta content="width=device-width, initial-scale=1.0" name="viewport"/><meta content="Docutils 0.17.1: http://docutils.sourceforge.net/" name="generator"/>
<title>Creating a custom PyoTableObject - TriangleTable — Pyo 1.0.5 documentation</title>
<link href="../_static/pygments.css" rel="stylesheet" type="text/css"/>
<link href="../_static/agogo.css" rel="stylesheet" type="text/css"/>
<link href="../_static/sphinx-codeautolink.css" rel="stylesheet" type="text/css"/>
<link href="../_static/autoclasstoc.css" rel="stylesheet" type="text/css"/>
<script data-url_root="../" id="documentation_options" src="../_static/documentation_options.js"></script>
<script src="../_static/jquery.js"></script>
<script src="../_static/underscore.js"></script>
<script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
<script src="../_static/doctools.js"></script>
<script src="../_static/sphinx_highlight.js"></script>
<link href="../_static/E-PyoIcon.ico" rel="shortcut icon"/>
<link href="../about.html" rel="author" title="About these documents"/>
<link href="../genindex.html" rel="index" title="Index"/>
<link href="../search.html" rel="search" title="Search"/>
<link href="pyoobject2.html" rel="prev" title="Creating a custom PyoObject - Flanger"/>
</head><body>
<div class="header-wrapper" role="banner">
<div class="header">
<div class="headertitle"><a href="../index.html">Pyo 1.0.5 documentation</a></div>
<div aria-label="related navigation" class="rel" role="navigation">
<a accesskey="P" href="pyoobject2.html" title="Creating a custom PyoObject - Flanger">previous</a> |
          <a accesskey="I" href="../genindex.html" title="General Index">index</a>
</div>
</div>
</div>
<div class="content-wrapper">
<div class="content">
<div class="sidebar">
<h3>Table of Contents</h3>
<ul>
<li class="toctree-l1"><a class="reference internal" href="../about.html">About pyo</a></li>
<li class="toctree-l1"><a class="reference internal" href="../download.html">Installing pyo with pip</a></li>
<li class="toctree-l1"><a class="reference internal" href="../compiling.html">Compiling pyo from sources</a></li>
<li class="toctree-l1"><a class="reference internal" href="../structure.html">Structure of the library</a></li>
<li class="toctree-l1"><a class="reference internal" href="../gettingstarted.html">Getting started</a></li>
<li class="toctree-l1"><a class="reference internal" href="../winaudioinspect.html">Configuring the audio output (Windows)</a></li>
<li class="toctree-l1"><a class="reference internal" href="../perftips.html">Improve performance of pyo programs</a></li>
</ul>
<ul class="current">
<li class="toctree-l1"><a class="reference internal" href="../api/index.html">API documentation</a></li>
<li class="toctree-l1"><a class="reference internal" href="../examples/index.html">Examples</a></li>
<li class="toctree-l1 current"><a class="reference internal" href="index.html">Advanced tutorials</a><ul class="current">
<li class="toctree-l2"><a class="reference internal" href="pyoobject1.html">Creating a custom PyoObject - RingMod</a></li>
<li class="toctree-l2"><a class="reference internal" href="pyoobject2.html">Creating a custom PyoObject - Flanger</a></li>
<li class="toctree-l2 current"><a class="current reference internal" href="#">Creating a custom PyoTableObject - TriangleTable</a></li>
</ul>
</li>
</ul>
<div role="search">
<h3 style="margin-top: 1.5em;">Search</h3>
<form action="../search.html" class="search" method="get">
<input name="q" type="text"/>
<input type="submit" value="Go"/>
</form>
</div>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body" role="main">
<section id="creating-a-custom-pyotableobject-triangletable">
<h1>Creating a custom PyoTableObject - TriangleTable<a class="headerlink" href="#creating-a-custom-pyotableobject-triangletable" title="Permalink to this heading">¶</a></h1>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <a class="sphinx-codeautolink-a" href="../api/alphabetical.html#module-pyo" title="pyo"><span class="nn">pyo</span></a> <span class="kn">import</span> <span class="o">*</span>

<span class="k">class</span> <span class="nc">TriTable</span><span class="p">(</span><a class="sphinx-codeautolink-a" href="../api/classes/_core.html#pyo.PyoTableObject" title="pyo.lib._core.PyoTableObject"><span class="n">PyoTableObject</span></a><span class="p">):</span>
    <span class="sd">"""</span>
<span class="sd">    Triangle waveform generator.</span>

<span class="sd">    Generates triangle waveforms made up of fixed number of harmonics.</span>

<span class="sd">    :Parent: :py:class:`PyoTableObject`</span>

<span class="sd">    :Args:</span>

<span class="sd">        order : int, optional</span>
<span class="sd">            Number of harmonics triangle waveform is made of. The waveform will</span>
<span class="sd">            contains `order` odd harmonics. Defaults to 10.</span>
<span class="sd">        size : int, optional</span>
<span class="sd">            Table size in samples. Defaults to 8192.</span>

<span class="sd">    &gt;&gt;&gt; s = Server().boot()</span>
<span class="sd">    &gt;&gt;&gt; s.start()</span>
<span class="sd">    &gt;&gt;&gt; t = TriTable(order=15).normalize()</span>
<span class="sd">    &gt;&gt;&gt; a = Osc(table=t, freq=[199,200], mul=.2).out()</span>

<span class="sd">    """</span>
    <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">order</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span> <span class="n">size</span><span class="o">=</span><span class="mi">8192</span><span class="p">):</span>
        <span class="n">PyoTableObject</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">size</span><span class="p">)</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">_order</span> <span class="o">=</span> <span class="n">order</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">_tri_table</span> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../api/classes/tables.html#pyo.HarmTable" title="pyo.lib.tables.HarmTable"><span class="n">HarmTable</span></a><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_create_list</span><span class="p">(</span><span class="n">order</span><span class="p">),</span> <span class="n">size</span><span class="p">)</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">_base_objs</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_tri_table</span><span class="o">.</span><span class="n">getBaseObjects</span><span class="p">()</span>

    <span class="k">def</span> <span class="nf">_create_list</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">order</span><span class="p">):</span>
        <span class="c1"># internal method used to compute the harmonics's weight</span>
        <span class="n">l</span> <span class="o">=</span> <span class="p">[]</span>
        <span class="n">ph</span> <span class="o">=</span> <span class="mf">1.0</span>
        <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="n">order</span><span class="o">*</span><span class="mi">2</span><span class="p">):</span>
            <span class="k">if</span> <span class="n">i</span> <span class="o">%</span> <span class="mi">2</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
                <span class="n">l</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
            <span class="k">else</span><span class="p">:</span>
                <span class="n">l</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">ph</span> <span class="o">/</span> <span class="p">(</span><span class="n">i</span><span class="o">*</span><span class="n">i</span><span class="p">))</span>
                <span class="n">ph</span> <span class="o">*=</span> <span class="o">-</span><span class="mi">1</span>
        <span class="k">return</span> <span class="n">l</span>

    <span class="k">def</span> <span class="nf">setOrder</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">):</span>
        <span class="sd">"""</span>
<span class="sd">        Change the `order` attribute and redraw the waveform.</span>

<span class="sd">        :Args:</span>

<span class="sd">            x : int</span>
<span class="sd">                New number of harmonics</span>

<span class="sd">        """</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">_order</span> <span class="o">=</span> <span class="n">x</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">_tri_table</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_create_list</span><span class="p">(</span><span class="n">x</span><span class="p">))</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">normalize</span><span class="p">()</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">refreshView</span><span class="p">()</span>

    <span class="nd">@property</span>
    <span class="k">def</span> <span class="nf">order</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="sd">"""int. Number of harmonics triangular waveform is made of."""</span>
        <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_order</span>
    <span class="nd">@order</span><span class="o">.</span><span class="n">setter</span>
    <span class="k">def</span> <span class="nf">order</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">):</span> <span class="bp">self</span><span class="o">.</span><span class="n">setOrder</span><span class="p">(</span><span class="n">x</span><span class="p">)</span>

<span class="c1"># Run the script to test the TriTable object.</span>
<span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s2">"__main__"</span><span class="p">:</span>
    <span class="n">s</span> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../api/classes/server.html#pyo.Server" title="pyo.lib.server.Server"><span class="n">Server</span></a><span class="p">()</span><span class="o">.</span><span class="n">boot</span><span class="p">()</span>
    <span class="n">t</span> <span class="o">=</span> <span class="n">TriTable</span><span class="p">(</span><span class="mi">10</span><span class="p">,</span> <span class="mi">8192</span><span class="p">)</span>
    <span class="n">t</span><span class="o">.</span><span class="n">normalize</span><span class="p">()</span>
    <span class="n">t</span><span class="o">.</span><span class="n">view</span><span class="p">()</span>
    <span class="n">a</span> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../api/classes/tableprocess.html#pyo.Osc" title="pyo.lib.tableprocess.Osc"><span class="n">Osc</span></a><span class="p">(</span><span class="n">t</span><span class="p">,</span> <span class="mi">500</span><span class="p">,</span> <span class="n">mul</span><span class="o">=</span><span class="mf">.3</span><span class="p">)</span><span class="o">.</span><span class="n">out</span><span class="p">()</span>
    <span class="n">s</span><span class="o">.</span><span class="n">gui</span><span class="p">(</span><span class="nb">locals</span><span class="p">())</span>
</pre></div>
</div>
</section>
<div class="clearer"></div>
</div>
</div>
</div>
</div>
<div class="clearer"></div>
</div>
</div>
<div class="footer-wrapper">
<div class="footer">
<div class="left">
<div aria-label="related navigaton" role="navigation">
<a href="pyoobject2.html" title="Creating a custom PyoObject - Flanger">previous</a> |
            <a href="../genindex.html" title="General Index">index</a>
</div>
<div aria-label="source link" role="note">
</div>
</div>
<div class="right">
<div class="footer" role="contentinfo">
        © Copyright 2021, Olivier Bélanger.
      Created using <a href="https://www.sphinx-doc.org/">Sphinx</a> 5.3.0.
    </div>
</div>
<div class="clearer"></div>
</div>
</div>
</body>
</html>