//-----------------------------------------------------------------------------
#region LasToCls - Converter function from LAS to Classification format
private void LasToCls <T>(TcLasReader prmReader, String prmOutput) where T : TiLasPoint
{
m_Progress = 0;
ReportMessage(String.Format("Processing {0}", Path.GetFileName(prmOutput)));
using (TcClsWriter writer = new TcClsWriter(prmReader.Header, prmOutput))
{
writer.WriteHeader(prmReader.OffsetBytes);
Int64 numberOfPointRecords = prmReader.Header.GetNumberOfPoints();
Int64 noOfPointsLoaded = 0;
Int64 noOfPointsToRead = 0;
while (noOfPointsLoaded < numberOfPointRecords)
{
noOfPointsToRead = Math.Min(TcConstants.MaxLasPointsToProcessAtOnce, numberOfPointRecords - noOfPointsLoaded);
writer.WritePoints <T>(prmReader.ReadPoints <T>(noOfPointsToRead));
noOfPointsLoaded += noOfPointsToRead;
ReportProgress(noOfPointsLoaded, numberOfPointRecords);
}
}
ReportMessage(String.Format("Finished {0}", Path.GetFileName(prmOutput)));
}
//-----------------------------------------------------------------------------
private void LasToCls <T>(TcLasReader prmReader, Int64 prmOriginalNumberOfPoints, String prmOutputAcl, String prmOutputAcb) where T : TiLasGPS
{
ReportMessage(String.Format("Processing {0}", Path.GetFileName(prmOutputAcb)));
ReportMessage("Reading all LAS points");
// Read all the points.
T[] clsPoints = prmReader.ReadPoints <T>(prmReader.TotalPoints);
ReportMessage("Sorting LAS points according to the GPS time");
// Sort the points according to the GPS time.
new TcLasSort <T>().SortByGpsTime(clsPoints, 0, prmReader.TotalPoints - 1);
Int64 pointsProcessed = 0;
Byte[] clsData = new Byte[prmOriginalNumberOfPoints];
ReportMessage("Extracting the new points");
// Count the number of points with GPSTime ~ 0 (new point)
Int32 exptCnt = 0;
while (clsPoints[exptCnt].GPSTime < 1)
{
exptCnt++;
}
// Write the new points in .acl file.
if (exptCnt > 0)
{
using (TcClsWriter clsWriter = new TcClsWriter(GetHeaderForCls(prmReader.Header, exptCnt), prmOutputAcl))
{
clsWriter.WriteHeader(prmReader.OffsetBytes);
clsWriter.WritePoints <T>(clsPoints.Take(exptCnt).ToArray());
}
}
pointsProcessed += exptCnt;
// Counter for the original points.
Int64 origPtCnt = 0;
// Current expected GPS time to map the deleted points.
Double expecteGPSTime = 1.0;
ReportMessage("Processing original points");
while (pointsProcessed < clsPoints.Length && origPtCnt < prmOriginalNumberOfPoints)
{
// If deleted points have been detected.
if (clsPoints[pointsProcessed].GPSTime != expecteGPSTime)
{
clsData[origPtCnt++] = 255;
expecteGPSTime++;
continue;
}
clsData[origPtCnt++] = clsPoints[pointsProcessed++].Classification;
expecteGPSTime++;
}
ReportMessage("Writing the output classification files");
// Write into the stream.
if (origPtCnt > 0)
{
using (BinaryWriter acbWriter = new BinaryWriter(new FileStream(prmOutputAcb, FileMode.Create)))
{
acbWriter.Write(origPtCnt);
acbWriter.Write(clsData);
}
}
ReportMessage(String.Format("Finished {0}", Path.GetFileName(prmOutputAcb)));
}
