cxPositionStorageFile.cpp

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.

Copyright (c) 2008-2014, SINTEF Department of Medical Technology
All rights reserved.

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modification, are permitted provided that the following conditions are met:

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   this list of conditions and the following disclaimer.

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   and/or other materials provided with the distribution.

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   may be used to endorse or promote products derived from this software 
   without specific prior written permission.

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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
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#include "cxPositionStorageFile.h"
#include <QDateTime>
#include <boost/cstdint.hpp>
#include "cxFrame3D.h"
#include "cxTime.h"


namespace cx
{


PositionStorageReader::PositionStorageReader(QString filename) : positions(filename)
{
  mError = false;
  positions.open(QIODevice::ReadOnly);
  stream.setDevice(&positions);
  stream.setByteOrder(QDataStream::LittleEndian);

  char header[7];
  memset(header, 0, sizeof(header));
  stream.readRawData(header, 6);
  mVersion = 0;
  stream >> mVersion;

  if (!positions.exists())
  {
    std::cout << "Error: File [" << filename.toStdString() << "] does not exist." << std::endl;
  }

  if (QString(header)!="SNWPOS" || mVersion<1)
  {
    //std::cout << QString(header).toStdString() << "-" << int(mVersion) << std::endl;
    std::cout << "Error in header for file [" << filename.toStdString() << "]" << std::endl;
    positions.close();
  }
}

PositionStorageReader::~PositionStorageReader()
{

}

int PositionStorageReader::version()
{
  return mVersion;
}

bool PositionStorageReader::read(Transform3D* matrix, double* timestamp, int* toolIndex)
{
  if (atEnd())
    return false;

  quint8 type;
  quint8 size;
  quint64 ts;
  quint8 tool;
//  Frame3D frame;

  stream >> type;
  stream >> size;
  stream >> ts;
  stream >> tool;
//  stream >> frame.mThetaXY >> frame.mThetaZ >> frame.mPhi;
//  stream >> frame.mPos[0] >> frame.mPos[1] >> frame.mPos[2];
  Frame3D frame = this->frameFromStream();

  *matrix = frame.transform();
  *timestamp = ts;
  *toolIndex = tool;

  return (type==1) && (size==15);
}

bool PositionStorageReader::read(Transform3D* matrix, double* timestamp, QString* toolUid)
{
  if (this->atEnd())
    return false;

  quint8 type;
  quint8 size;

  stream >> type; // read type and make ready for a new read below

  while (type==2) // change tool format
  {
          if (this->atEnd())
                return false;
        stream >> size;
    char* data = NULL;
    uint isize = 0;
    stream.readBytes(data, isize);
        mCurrentToolUid = QString(QByteArray(data, size));
    delete[] data;

    stream >> type; // read type and make ready for a new read below
  }

  if (type==1) // tool-on-line format
  {
    quint64 ts;
    quint8 tool;
//    Frame3D frame;
//    double thetaXY;
//    double thetaZ;
//    double phi;

    stream >> size;
    stream >> ts;
    stream >> tool;
//    stream >> thetaXY >> thetaZ >> phi;
//    stream >> frame.mPos[0] >> frame.mPos[1] >> frame.mPos[2];
//    frame.mAngleAxis = Eigen::AngleAxisd(phi, unitVector(thetaXY, thetaZ));
    Frame3D frame = this->frameFromStream();

    *matrix = frame.transform();
    *timestamp = ts;
    *toolUid = QString::number(tool);
    return (size==69);
  }
  else if (type==3) // position only format
  {
    quint64 ts;
//    Frame3D frame;
//    double thetaXY;
//    double thetaZ;
//    double phi;

    stream >> size;
    stream >> ts;
//    stream >> thetaXY >> thetaZ >> phi;
    Frame3D frame = this->frameFromStream();
//    stream >> frame.mThetaXY >> frame.mThetaZ >> frame.mPhi;
//    stream >> frame.mPos[0] >> frame.mPos[1] >> frame.mPos[2];
//    frame.mAngleAxis = Eigen::AngleAxisd(phi, unitVector(thetaXY, thetaZ));

    *matrix = frame.transform();
    *timestamp = ts;
    *toolUid = mCurrentToolUid;
    return (size==68);
  }

  mError = true;
  return false;
}

Frame3D PositionStorageReader::frameFromStream()
{
  boost::array<double, 6> rep;
  stream >> rep[0] >> rep[1] >> rep[2] >> rep[3] >> rep[4] >> rep[5];
  Frame3D retval = Frame3D::fromCompactAxisAngleRep(rep);
  return retval;
}

bool PositionStorageReader::atEnd() const
{
  return !positions.isReadable() || stream.atEnd() || mError;
}

QString PositionStorageReader::timestampToString(double timestamp)
{
  QDateTime retval;
  boost::uint64_t ts = static_cast<boost::uint64_t>(timestamp);
  retval.setTime_t(ts/1000);
  retval = retval.addMSecs(ts%1000);
  return retval.toString(timestampMilliSecondsFormatNice());
}


//---------------------------------------------------------
//---------------------------------------------------------
//---------------------------------------------------------


PositionStorageWriter::PositionStorageWriter(QString filename) : positions(filename)
{
        positions.open(QIODevice::Append);
        stream.setDevice(&positions);
        stream.setByteOrder(QDataStream::LittleEndian);
        if (positions.size() == 0)
        {
                stream.writeRawData("SNWPOS", 6);
                stream << (quint8)2; // version 1 had only 32 bit timestamps
        }
}

PositionStorageWriter::~PositionStorageWriter()
{
        positions.close();
}


void PositionStorageWriter::write(Transform3D matrix, uint64_t timestamp, int toolIndex)
{
        Frame3D frame = Frame3D::create(matrix);

        stream << (quint8)1;    // Type - there is only one
        stream << (quint8)(8+1+6*10);   // Size of data following this point
        stream << (quint64)timestamp;   // Milliseconds since Epoch
        stream << (quint8)toolIndex;    // tool index
        stream << (double)getThetaXY(frame.mAngleAxis.axis());
  stream << (double)getThetaZ(frame.mAngleAxis.axis());
        stream << (double)frame.mAngleAxis.angle();
//  stream << (double)frame.mThetaXY;
//  stream << (double)frame.mThetaZ;
//  stream << (double)frame.mPhi;
        stream << (double)frame.mPos[0];
        stream << (double)frame.mPos[1];
        stream << (double)frame.mPos[2];
}

void PositionStorageWriter::write(Transform3D matrix, uint64_t timestamp, QString toolUid)
{
  if (toolUid!=mCurrentToolUid)
  {
    QByteArray name = toolUid.toLatin1();

    stream << (quint8)2;  // Type - tool change
    stream << (quint8)(name.size()+4); // Size of data following this point
    stream.writeBytes(name.data(), name.size());
    mCurrentToolUid = toolUid;
  }
  else
  {
    Frame3D frame = Frame3D::create(matrix);
    boost::array<double, 6> rep = frame.getCompactAxisAngleRep();

    stream << (quint8)3;  // Type -
    stream << (quint8)(8+6*10); // Size of data following this point
    stream << (quint64)timestamp; // Milliseconds since Epoch
//    stream << (double)frame.mThetaXY;
//    stream << (double)frame.mThetaZ;
//    stream << (double)frame.mPhi;
    stream << rep[0];
    stream << rep[1];
    stream << rep[2];
    stream << rep[3];
    stream << rep[4];
    stream << rep[5];
  }

}


} // namespace cx