// gets called when PointWasSelected event fires in viewer
void PointSelected(Vector3 pos)
{
// editor debug line only
PointCloudMath.DebugHighLightPointGreen(pos);
// was this the first selection
if (isFirstPoint == true)
{
startPos = pos;
if (distanceUIText != null)
{
distanceUIText.text = "Measure: Select 2nd point";
}
haveFirstPoint = true;
haveSecondPoint = false;
}
else
{ // it was 2nd click
endPos = pos;
haveSecondPoint = true;
var distance = Vector3.Distance(previousPoint, pos);
if (distanceUIText != null)
{
distanceUIText.text = "Distance:" + distance.ToString();
}
}
Debug.Log("(v3) Picked point at :" + pos);
previousPoint = pos;
isFirstPoint = !isFirstPoint; // flip boolean
}
void IWriter.Randomize()
{
writerPoints.Flush();
bsPoints.Flush();
writerPoints.Close();
bsPoints.Dispose();
Debug.Log("Randomizing " + pointCount + " points...");
// randomize points and colors
byte[] tempBytes = null;
using (FileStream fs = File.Open(pointsTempFile, FileMode.Open, FileAccess.Read, FileShare.None))
using (BufferedStream bs = new BufferedStream(fs))
using (BinaryReader binaryReader = new BinaryReader(bs))
{
tempBytes = binaryReader.ReadBytes(pointCount * 4 * 3);
}
float[] tempFloats = new float[pointCount * 3];
// convert to float array
GCHandle vectorPointer = GCHandle.Alloc(tempFloats, GCHandleType.Pinned);
IntPtr pV = vectorPointer.AddrOfPinnedObject();
Marshal.Copy(tempBytes, 0, pV, pointCount * 4 * 3);
vectorPointer.Free();
PointCloudMath.ShuffleXYZ(PointCloudMath.rnd, ref tempFloats);
PointCloudMath.ResetRandom();
// create new file on top, NOTE seek didnt work?
bsPoints = new BufferedStream(new FileStream(pointsTempFile, FileMode.Create, FileAccess.ReadWrite, FileShare.Read));
writerPoints = new BinaryWriter(bsPoints);
// TODO why not use writeallbytes?
for (int i = 0; i < pointCount * 3; i++)
{
writerPoints.Write(tempFloats[i]);
}
// new files for colors
writerColorsV2.Flush();
bsColorsV2.Flush();
writerColorsV2.Close();
bsColorsV2.Dispose();
Debug.Log("Randomizing " + pointCount + " colors...");
tempBytes = null;
using (FileStream fs = File.Open(colorsTempFile, FileMode.Open, FileAccess.Read, FileShare.None))
using (BufferedStream bs = new BufferedStream(fs))
using (BinaryReader binaryReader = new BinaryReader(bs))
{
tempBytes = binaryReader.ReadBytes(pointCount * 4 * 3);
}
tempFloats = new float[pointCount * 3];
// convert to float array, TODO no need if can output writeallbytes
vectorPointer = GCHandle.Alloc(tempFloats, GCHandleType.Pinned);
pV = vectorPointer.AddrOfPinnedObject();
Marshal.Copy(tempBytes, 0, pV, pointCount * 4 * 3);
vectorPointer.Free();
// actual point randomization
//Tools.ShuffleXYZ(Tools.rnd, ref tempFloats);
PointCloudMath.ShuffleXYZ(PointCloudMath.rnd, ref tempFloats);
// create new file on top, seek didnt work?
bsColorsV2 = new BufferedStream(new FileStream(colorsTempFile, FileMode.Create, FileAccess.ReadWrite, FileShare.Read));
writerColorsV2 = new BinaryWriter(bsColorsV2);
// TODO why not use writeallbytes? check 2gb file limit then use that
for (int i = 0; i < pointCount * 3; i++)
{
writerColorsV2.Write(tempFloats[i]);
}
}
