annotate src/Modules/Output/Graphics/GraphicsViewTime.cc @ 611:0fbaf443ec82

Carfac C++ revision 3, indluding more style improvements. The output structs are now classes again, and have separate storage methods for each output structure along with flags in the Run and RunSegment methods to allow for only storing NAPs if desired.

// Copyright 2006-2010, Willem van Engen, Thomas Walters
//
// AIM-C: A C++ implementation of the Auditory Image Model
// http://www.acousticscale.org/AIMC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

/*!
 * \file
 * \brief Time-representation graphics view
 *
 * \author Willem van Engen <[e-mail]>
 * \date created 2006/09/26
 * \version \$Id: GraphicsViewTime.cpp 607 2008-06-25 00:14:14Z tom $
 */

#include "Support/Common.h"

#include <stdio.h>

#include "Support/SignalBank.h"
#include "Modules/Output/Graphics/GraphicsView.h"
#include "Modules/Output/Graphics/GraphicsViewTime.h"

namespace aimc {

GraphicsViewTime::GraphicsViewTime(Parameters *pParam)
  : GraphicsView(pParam) {
    module_description_ = "Graphics output.";
    module_identifier_ = "graphics_time";
    module_type_ = "output";
    module_version_ = "$Id: $";
}

GraphicsViewTime *GraphicsViewTime::Clone(GraphicsOutputDevice *pDev) {
  GraphicsViewTime *pView = new GraphicsViewTime(parameters_);
  // Copy everything
  pView->m_pAxisX->SetDisplayRange(m_pAxisX->m_fMax, m_pAxisX->m_fMin);
  pView->m_pAxisX->SetDisplayScale(m_pAxisX->m_pScale->getType());
  pView->m_pAxisY->SetDisplayRange(m_pAxisY->m_fMax, m_pAxisY->m_fMin);
  pView->m_pAxisY->SetDisplayScale(m_pAxisY->m_pScale->getType());
  pView->m_pAxisFreq->SetDisplayRange(m_pAxisFreq->m_fMax, m_pAxisFreq->m_fMin);
  pView->m_pAxisFreq->SetDisplayScale(m_pAxisFreq->m_pScale->getType());
  return pView;
}

void GraphicsViewTime::PlotAxes(const SignalBank &bank) {
  m_pDev->gColor3f(0.0f, 0.7f, 0.7f);
  // Vertical axis
  m_pDev->gBeginLineStrip();
  m_pDev->gVertex2f(m_fMarginLeft, m_fMarginBottom);
  m_pDev->gVertex2f(m_fMarginLeft, 1.0f - m_fMarginTop);
  m_pDev->gEnd();
  // Horizontal axis
  m_pDev->gBeginLineStrip();
  m_pDev->gVertex2f(m_fMarginLeft, m_fMarginBottom);
  m_pDev->gVertex2f(1.0f-m_fMarginRight, m_fMarginBottom);
  m_pDev->gEnd();

  //if (!m_bPlotLabels)
  //  return;

  // Labels
  char sTxt[80];
  snprintf(sTxt, sizeof(sTxt) / sizeof(sTxt[0]),
           _S("%s [%.0f..%.0f Hz, %s scale]"),
           m_pAxisFreq->m_sLabel ? m_pAxisFreq->m_sLabel : "",
           m_pAxisFreq->m_fMin, m_pAxisFreq->m_fMax,
           m_pAxisFreq->m_pScale->getName());
  m_pDev->gText2f(0.0025f, 0.35f, sTxt, true);
  snprintf(sTxt, sizeof(sTxt) / sizeof(sTxt[0]),
	         _S("%s [%.2f..%.2f ms, %s scale]"),
           m_pAxisX->m_sLabel ? m_pAxisX->m_sLabel : "",
           m_pAxisX->m_fMin,
           m_pAxisX->m_fMax,
           m_pAxisX->m_pScale->getName());

  m_pDev->gText2f(m_fMarginLeft, 0.0025f, sTxt, false);

  // Frame time
  snprintf(sTxt, sizeof(sTxt)/sizeof(sTxt[0]), _S("t=%.0f ms"),
           1000.0 * bank.start_time() / bank.sample_rate());
  m_pDev->gText2f(0.8f, 0.0025f, sTxt, false);
}

void GraphicsViewTime::PlotStrobes(const vector<float>& signal,
                                   const vector<int>& strobes,
                                   float sample_rate,
                                   float y_offset,
                                   float height,
                                   float x_scale,
                                   float diameter) {
  x_scale *= 1000.0 / sample_rate;
  m_pDev->gColor3f(1.0f, 0.0f, 0.0f);
  for (vector<int>::const_iterator i = strobes.begin();
       i != strobes.end(); ++i) {
    float x = *i * x_scale;
    float y = signal[*i];
    x = m_pAxisX->m_pScale->FromLinearScaled(x) + 0.5f;
    y = m_pAxisY->m_pScale->FromLinearScaled(y);

    if (x < 0.0)
      continue;

    // Now fit it into the drawing area.
    x = x * (1.0f - m_fMarginLeft - m_fMarginRight) + m_fMarginLeft;  // fit inside x-axis area
    PlotStrobe(x, y_offset, y, height, diameter);
  }
}

void GraphicsViewTime::PlotData(const vector<float> &signal,
                                float sample_rate,
                                float yOffset,
                                float height,
                                float xScale) {
  AIM_ASSERT(xScale >= 0 && xScale <= 1);
  AIM_ASSERT(height > 0  && height <= 1);
  AIM_ASSERT(yOffset >= 0 && yOffset <= 1);
  AIM_ASSERT(m_pAxisX && m_pAxisX->m_pScale);
  AIM_ASSERT(m_pAxisY && m_pAxisY->m_pScale);

  // Make sure we get time is ms as x value
  xScale *= 1000.0 / sample_rate;
  m_pDev->gColor3f(1.0f, 1.0f, 0.8f);
  BeginDataStrip();

  // Draw the signal.
  float x = 0;
  float y = 0;
  for (unsigned int i = 0; i < signal.size(); i++) {
    // Find out where to draw and do so
    x = xScale * i;
    y = signal[i];
    x = m_pAxisX->m_pScale->FromLinearScaled(x) + 0.5f;
    y = m_pAxisY->m_pScale->FromLinearScaled(y);

    if (x < 0.0)
      continue;

    // Now fit it into the drawing area
    x = x * (1.0f - m_fMarginLeft - m_fMarginRight) + m_fMarginLeft;  // fit inside x-axis area
    PlotDataPoint(x, yOffset, y, height, false);
    /* There's no point in drawing anything when x>1.0, outside of view.
     * x is continuously increasing, so we can just stop completely. We need to
     * plot this point however, to finish the final line. */
    if (x > 1.0)
      break;
  }
  // Redraw the last point in case it's needed
  PlotDataPoint(x, yOffset, y, height, true);

  m_pDev->gEnd();
}
}  // namespace aimc