comparison trunk/src/Modules/Output/Graphics/GraphicsViewTime.cc @ 397:7a573750b186

- First add of a lot of graphics code from the old version. Not working yet, not even compiling yet.
author tomwalters
date Fri, 15 Oct 2010 05:40:53 +0000
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children 3ee03a6b95a0
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396:06a26f5cdad7 397:7a573750b186
1 // Copyright 2006-2010, Willem van Engen, Thomas Walters
2 //
3 // AIM-C: A C++ implementation of the Auditory Image Model
4 // http://www.acousticscale.org/AIMC
5 //
6 // Licensed under the Apache License, Version 2.0 (the "License");
7 // you may not use this file except in compliance with the License.
8 // You may obtain a copy of the License at
9 //
10 // http://www.apache.org/licenses/LICENSE-2.0
11 //
12 // Unless required by applicable law or agreed to in writing, software
13 // distributed under the License is distributed on an "AS IS" BASIS,
14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 // See the License for the specific language governing permissions and
16 // limitations under the License.
17
18 /*!
19 * \file
20 * \brief Time-representation graphics view
21 *
22 * \author Willem van Engen <cnbh@willem.engen.nl>
23 * \date created 2006/09/26
24 * \version \$Id: GraphicsViewTime.cpp 607 2008-06-25 00:14:14Z tom $
25 */
26
27 #include "Support/Common.h"
28
29 #include <stdio.h>
30
31 #include "Support/SignalBank.h"
32 #include "Modules/Output/Graphics/GraphicsView.h"
33 #include "Modules/Output/Graphics/GraphicsViewTime.h"
34
35 GraphicsViewTime::GraphicsViewTime(Parameters *pParam)
36 : GraphicsView(pParam) {
37 }
38
39 GraphicsViewTime *GraphicsViewTime::Clone(GraphicsOutputDevice *pDev) {
40 GraphicsViewTime *pView = new GraphicsViewTime(m_pParam);
41 // Copy everything
42 pView->m_pAxisX->SetDisplayRange(m_pAxisX->m_fMax, m_pAxisX->m_fMin);
43 pView->m_pAxisX->SetDisplayScale(m_pAxisX->m_pScale->getType());
44 pView->m_pAxisY->SetDisplayRange(m_pAxisY->m_fMax, m_pAxisY->m_fMin);
45 pView->m_pAxisY->SetDisplayScale(m_pAxisY->m_pScale->getType());
46 pView->m_pAxisFreq->SetDisplayRange(m_pAxisFreq->m_fMax, m_pAxisFreq->m_fMin);
47 pView->m_pAxisFreq->SetDisplayScale(m_pAxisFreq->m_pScale->getType());
48 return pView;
49 }
50
51 void GraphicsViewTime::PlotAxes(const SignalBank &bank) {
52 m_pDev->gColor3f(0.0f, 0.7f, 0.7f);
53 // Vertical axis
54 m_pDev->gBeginLineStrip();
55 m_pDev->gVertex2f(m_fMarginLeft, m_fMarginBottom);
56 m_pDev->gVertex2f(m_fMarginLeft, 1.0f - m_fMarginTop);
57 m_pDev->gEnd();
58 // Horizontal axis
59 m_pDev->gBeginLineStrip();
60 m_pDev->gVertex2f(m_fMarginLeft, m_fMarginBottom);
61 m_pDev->gVertex2f(1.0f-m_fMarginRight, m_fMarginBottom);
62 m_pDev->gEnd();
63
64 if (!m_bPlotLabels)
65 return;
66
67 // Labels
68 char sTxt[80];
69 snprintf(sTxt, sizeof(sTxt) / sizeof(sTxt[0]),
70 _S("%s [%.0f..%.0f Hz, %s scale]"),
71 m_pAxisFreq->m_sLabel ? m_pAxisFreq->m_sLabel : "",
72 m_pAxisFreq->m_fMin, m_pAxisFreq->m_fMax,
73 m_pAxisFreq->m_pScale->getName());
74 m_pDev->gText2f(0.0025f, 0.35f, sTxt, true);
75 if (m_bPlotScaled) {
76 snprintf(sTxt, sizeof(sTxt) / sizeof(sTxt[0]),
77 _S("%s [cycles, %s scale]"),
78 m_pAxisX->m_sLabel ? m_pAxisX->m_sLabel : "",
79 m_pAxisX->m_pScale->getName());
80 } else {
81 snprintf(sTxt, sizeof(sTxt) / sizeof(sTxt[0]),
82 _S("%s [%.2f..%.2f ms, %s scale]"),
83 m_pAxisX->m_sLabel ? m_pAxisX->m_sLabel : "",
84 m_pAxisX->m_fMin,
85 m_pAxisX->m_fMax,
86 m_pAxisX->m_pScale->getName());
87 }
88 m_pDev->gText2f(m_fMarginLeft, 0.0025f, sTxt, false);
89
90 // Frame time
91 snprintf(sTxt, sizeof(sTxt)/sizeof(sTxt[0]), _S("t=%.0f ms"),
92 pBank->getSampleTime(0));
93 m_pDev->gText2f(0.8f, 0.0025f, sTxt, false);
94 }
95
96 void GraphicsViewTime::PlotData(const vector<float> &signal,
97 float sample_rate,
98 float yOffset,
99 float height,
100 float xScale) {
101 AIM_ASSERT(pSig);
102 AIM_ASSERT(xScale >= 0 && xScale <= 1);
103 AIM_ASSERT(height > 0 && height <= 1);
104 AIM_ASSERT(yOffset >= 0 && yOffset <= 1);
105 AIM_ASSERT(m_pAxisX && m_pAxisX->m_pScale);
106 AIM_ASSERT(m_pAxisY && m_pAxisY->m_pScale);
107
108 // Make sure we get time is ms as x value
109 xScale *= 1000.0 / sample_rate;
110 m_pDev->gColor3f(1.0f, 1.0f, 0.8f);
111 BeginDataStrip();
112
113 // Draw the signal.
114 float x = 0;
115 float y = 0;
116 for (int i = 0; i < signal.size(); i++) {
117 // Find out where to draw and do so
118 x = xScale * i;
119 y = signal[i];
120 x = m_pAxisX->m_pScale->FromLinearScaled(x) + 0.5f;
121 y = m_pAxisY->m_pScale->FromLinearScaled(y);
122
123 if (x < 0.0)
124 continue;
125
126 // Now fit it into the drawing area
127 x = x * (1.0f - m_fMarginLeft - m_fMarginRight) + m_fMarginLeft; // fit inside x-axis area
128 PlotDataPoint(x, yOffset, y, height, false);
129 /* There's no point in drawing anything when x>1.0, outside of view.
130 * x is continuously increasing, so we can just stop completely. We need to
131 * plot this point however, to finish the final line. */
132 if (x > 1.0)
133 break;
134 }
135 // Redraw the last point in case it's needed
136 PlotDataPoint(x, yOffset, y, height, true);
137
138 m_pDev->gEnd();
139 }