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cxPositionStorageFile.cpp
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1 /*=========================================================================
2 This file is part of CustusX, an Image Guided Therapy Application.
3 
4 Copyright (c) 2008-2014, SINTEF Department of Medical Technology
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11  this list of conditions and the following disclaimer.
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32 
33 #include "cxPositionStorageFile.h"
34 #include <QDateTime>
35 #include <boost/cstdint.hpp>
36 #include "cxFrame3D.h"
37 #include "cxTime.h"
38 
39 
40 namespace cx
41 {
42 
43 
44 PositionStorageReader::PositionStorageReader(QString filename) : positions(filename)
45 {
46  mError = false;
47  positions.open(QIODevice::ReadOnly);
48  stream.setDevice(&positions);
49  stream.setByteOrder(QDataStream::LittleEndian);
50 
51  char header[7];
52  memset(header, 0, sizeof(header));
53  stream.readRawData(header, 6);
54  mVersion = 0;
55  stream >> mVersion;
56 
57  if (!positions.exists())
58  {
59  std::cout << "Error: File [" << filename.toStdString() << "] does not exist." << std::endl;
60  }
61 
62  if (QString(header)!="SNWPOS" || mVersion<1)
63  {
64  //std::cout << QString(header).toStdString() << "-" << int(mVersion) << std::endl;
65  std::cout << "Error in header for file [" << filename.toStdString() << "]" << std::endl;
66  positions.close();
67  }
68 }
69 
71 {
72 
73 }
74 
76 {
77  return mVersion;
78 }
79 
80 bool PositionStorageReader::read(Transform3D* matrix, double* timestamp, int* toolIndex)
81 {
82  if (atEnd())
83  return false;
84 
85  quint8 type;
86  quint8 size;
87  quint64 ts;
88  quint8 tool;
89 // Frame3D frame;
90 
91  stream >> type;
92  stream >> size;
93  stream >> ts;
94  stream >> tool;
95 // stream >> frame.mThetaXY >> frame.mThetaZ >> frame.mPhi;
96 // stream >> frame.mPos[0] >> frame.mPos[1] >> frame.mPos[2];
97  Frame3D frame = this->frameFromStream();
98 
99  *matrix = frame.transform();
100  *timestamp = ts;
101  *toolIndex = tool;
102 
103  return (type==1) && (size==15);
104 }
105 
106 bool PositionStorageReader::read(Transform3D* matrix, double* timestamp, QString* toolUid)
107 {
108  if (this->atEnd())
109  return false;
110 
111  quint8 type;
112  quint8 size;
113 
114  stream >> type; // read type and make ready for a new read below
115 
116  while (type==2) // change tool format
117  {
118  if (this->atEnd())
119  return false;
120  stream >> size;
121  char* data = NULL;
122  uint isize = 0;
123  stream.readBytes(data, isize);
124  mCurrentToolUid = QString(QByteArray(data, size));
125  delete[] data;
126 
127  stream >> type; // read type and make ready for a new read below
128  }
129 
130  if (type==1) // tool-on-line format
131  {
132  quint64 ts;
133  quint8 tool;
134 // Frame3D frame;
135 // double thetaXY;
136 // double thetaZ;
137 // double phi;
138 
139  stream >> size;
140  stream >> ts;
141  stream >> tool;
142 // stream >> thetaXY >> thetaZ >> phi;
144 // stream >> frame.mPos[0] >> frame.mPos[1] >> frame.mPos[2];
145 // frame.mAngleAxis = Eigen::AngleAxisd(phi, unitVector(thetaXY, thetaZ));
146  Frame3D frame = this->frameFromStream();
147 
148  *matrix = frame.transform();
149  *timestamp = ts;
150  *toolUid = QString::number(tool);
151  return (size==69);
152  }
153  else if (type==3) // position only format
154  {
155  quint64 ts;
156 // Frame3D frame;
157 // double thetaXY;
158 // double thetaZ;
159 // double phi;
160 
161  stream >> size;
162  stream >> ts;
163 // stream >> thetaXY >> thetaZ >> phi;
164  Frame3D frame = this->frameFromStream();
165 // stream >> frame.mThetaXY >> frame.mThetaZ >> frame.mPhi;
166 // stream >> frame.mPos[0] >> frame.mPos[1] >> frame.mPos[2];
167 // frame.mAngleAxis = Eigen::AngleAxisd(phi, unitVector(thetaXY, thetaZ));
168 
169  *matrix = frame.transform();
170  *timestamp = ts;
171  *toolUid = mCurrentToolUid;
172  return (size==68);
173  }
174 
175  mError = true;
176  return false;
177 }
178 
179 Frame3D PositionStorageReader::frameFromStream()
180 {
181  boost::array<double, 6> rep;
182  stream >> rep[0] >> rep[1] >> rep[2] >> rep[3] >> rep[4] >> rep[5];
184  return retval;
185 }
186 
188 {
189  return !positions.isReadable() || stream.atEnd() || mError;
190 }
191 
196 {
197  QDateTime retval;
198  boost::uint64_t ts = static_cast<boost::uint64_t>(timestamp);
199  retval.setTime_t(ts/1000);
200  retval = retval.addMSecs(ts%1000);
201  return retval.toString(timestampMilliSecondsFormatNice());
202 }
203 
204 
205 //---------------------------------------------------------
206 //---------------------------------------------------------
207 //---------------------------------------------------------
208 
209 
210 PositionStorageWriter::PositionStorageWriter(QString filename) : positions(filename)
211 {
212  positions.open(QIODevice::Append);
213  stream.setDevice(&positions);
214  stream.setByteOrder(QDataStream::LittleEndian);
215  if (positions.size() == 0)
216  {
217  stream.writeRawData("SNWPOS", 6);
218  stream << (quint8)2; // version 1 had only 32 bit timestamps
219  }
220 }
221 
223 {
224  positions.close();
225 }
226 
227 
228 void PositionStorageWriter::write(Transform3D matrix, uint64_t timestamp, int toolIndex)
229 {
230  Frame3D frame = Frame3D::create(matrix);
231 
232  stream << (quint8)1; // Type - there is only one
233  stream << (quint8)(8+1+6*10); // Size of data following this point
234  stream << (quint64)timestamp; // Milliseconds since Epoch
235  stream << (quint8)toolIndex; // tool index
236  stream << (double)getThetaXY(frame.mAngleAxis.axis());
237  stream << (double)getThetaZ(frame.mAngleAxis.axis());
238  stream << (double)frame.mAngleAxis.angle();
239 // stream << (double)frame.mThetaXY;
240 // stream << (double)frame.mThetaZ;
241 // stream << (double)frame.mPhi;
242  stream << (double)frame.mPos[0];
243  stream << (double)frame.mPos[1];
244  stream << (double)frame.mPos[2];
245 }
246 
247 void PositionStorageWriter::write(Transform3D matrix, uint64_t timestamp, QString toolUid)
248 {
249  if (toolUid!=mCurrentToolUid)
250  {
251  QByteArray name = toolUid.toLatin1();
252 
253  stream << (quint8)2; // Type - tool change
254  stream << (quint8)(name.size()+4); // Size of data following this point
255  stream.writeBytes(name.data(), name.size());
256  mCurrentToolUid = toolUid;
257  }
258  else
259  {
260  Frame3D frame = Frame3D::create(matrix);
261  boost::array<double, 6> rep = frame.getCompactAxisAngleRep();
262 
263  stream << (quint8)3; // Type -
264  stream << (quint8)(8+6*10); // Size of data following this point
265  stream << (quint64)timestamp; // Milliseconds since Epoch
266 // stream << (double)frame.mThetaXY;
267 // stream << (double)frame.mThetaZ;
268 // stream << (double)frame.mPhi;
269  stream << rep[0];
270  stream << rep[1];
271  stream << rep[2];
272  stream << rep[3];
273  stream << rep[4];
274  stream << rep[5];
275  }
276 
277 }
278 
279 
280 } // namespace cx
static QString timestampToString(double timestamp)
PositionStorageReader(QString filename)
static Frame3D fromCompactAxisAngleRep(const boost::array< double, 6 > &rep)
Definition: cxFrame3D.cpp:201
Transform3D Transform3D
Transform3D is a representation of an affine 3D transform.
Transform3D transform() const
Definition: cxFrame3D.cpp:161
Defines an axis-angle representation of a position+orientation in 3D space.
Definition: cxFrame3D.h:90
double getThetaXY(Vector3D k)
get thetaXY, meaning the angle of v projected onto the xy plane
Definition: cxVector3D.cpp:86
boost::array< double, 6 > getCompactAxisAngleRep() const
Definition: cxFrame3D.cpp:189
double getThetaZ(Vector3D k)
get thetaZ, z meaning the elevation from the xy plane
Definition: cxVector3D.cpp:91
static Frame3D create(const Transform3D &transform)
Definition: cxFrame3D.cpp:149
bool read(Transform3D *matrix, double *timestamp, int *toolIndex)
Vector3D mPos
position
Definition: cxFrame3D.h:110
void write(Transform3D matrix, uint64_t timestamp, int toolIndex)
Eigen::AngleAxisd mAngleAxis
angle-axis representation of rotation
Definition: cxFrame3D.h:109
QString timestampMilliSecondsFormatNice()
Definition: cxTime.cpp:51