public void computeBoundingBox()
{
myBoundingBox_ = new ptsBoundingBox2d
(point1.x, point1.y, point1.z,
point1.x, point1.y, point1.z);
myBoundingBox_.expandByPoint(point2.x, point2.y, point2.z);
myBoundingBox_.expandByPoint(point3.x, point3.y, point3.z);
}
private void LoadTINfromVRML(string fileName)
{
string line;
long lineCount = 0;
if (!(String.Compare(Path.GetExtension(fileName), ".wrl", true) == 0))
{
throw new ArgumentException("Filename must have wrl extension.");
}
System.IO.StreamReader file = new System.IO.StreamReader(fileName);
try
{
while ((line = file.ReadLine()) != null)
{
if (false == validateVRMLfileHeader(line))
throw new System.IO.InvalidDataException("File not in VRML2 format.");
break;
}
lineCount++;
while ((line = file.ReadLine()) != null)
{
lineCount++;
if(line.Equals("IndexedFaceSet"))
break;
}
while ((line = file.ReadLine()) != null)
{
lineCount++;
if (line.Equals("point"))
{
line = file.ReadLine(); // eat the open brace, [
break;
}
}
ulong ptIndex=0;
while ((line = file.ReadLine()) != null)
{
lineCount++;
// Read until the close brace, [
if(line.Equals("]"))
break;
scratchPoint = convertLineOfDataToPoint(line, ptIndex);
if (allPoints == null)
{
createAllpointsCollection();
myBoundingBox = new ptsBoundingBox2d(scratchPoint.x, scratchPoint.y,scratchPoint.x, scratchPoint.y);
}
allPoints.Add(ptIndex, scratchPoint);
ptIndex++;
myBoundingBox.expandByPoint(scratchPoint.x, scratchPoint.y, scratchPoint.z);
}
while ((line = file.ReadLine()) != null)
{
lineCount++;
if (line.Equals("coordIndex"))
{
line = file.ReadLine(); // eat the open brace, [
break;
}
}
var allTriangles_ = new List<ptsDTMtriangle>();
while ((line = file.ReadLine()) != null)
{
lineCount++;
// Read until the close brace, [
if (line.Equals("]"))
break;
scratchTriangle = convertLineOfDataToTriangle(line);
allTriangles_.Add(scratchTriangle);
}
allTriangles_.Sort();
allTriangles = allTriangles_.ToList();
}
finally
{
file.Close();
}
}
private void LoadTINfromLandXML(string fileName)
{
if (!(String.Compare(Path.GetExtension(fileName), ".xml", true) == 0))
{
throw new ArgumentException("Filename must have xml extension.");
}
memoryUsed = GC.GetTotalMemory(true);
Stopwatch stopwatch = new Stopwatch();
List<string> trianglesAsStrings;
setupStopWatches();
scratchUIntPair = new UInt64pair();
System.Console.WriteLine("Load XML document took:");
stopwatch.Reset(); stopwatch.Start();
LoadTimeStopwatch.Reset(); LoadTimeStopwatch.Start();
using (XmlTextReader reader = new XmlTextReader(fileName))
{
stopwatch.Stop(); consoleOutStopwatch(stopwatch);
System.Console.WriteLine("Seeking Pnts collection took:");
stopwatch.Reset(); stopwatch.Start();
reader.MoveToContent();
reader.ReadToDescendant("Surface");
string astr = reader.GetAttribute("name");
// Read Points
reader.ReadToDescendant("Pnts");
stopwatch.Stop(); consoleOutStopwatch(stopwatch);
System.Console.WriteLine("Loading All Points took:");
stopwatch.Reset(); stopwatch.Start();
reader.Read();
while (!(reader.Name.Equals("Pnts") && reader.NodeType.Equals(XmlNodeType.EndElement)))
{
UInt64 id;
if (reader.NodeType.Equals(XmlNodeType.Element))
{
UInt64.TryParse(reader.GetAttribute("id"), out id);
reader.Read();
if (reader.NodeType.Equals(XmlNodeType.Text))
{
scratchPoint = new ptsDTMpoint(reader.Value, id);
if (allPoints == null)
{
createAllpointsCollection();
myBoundingBox = new ptsBoundingBox2d(scratchPoint.x, scratchPoint.y, scratchPoint.x, scratchPoint.y);
}
allPoints.Add(id, scratchPoint);
myBoundingBox.expandByPoint(scratchPoint.x, scratchPoint.y, scratchPoint.z);
}
}
reader.Read();
}
// Read Triangles, but only as strings
stopwatch.Stop(); consoleOutStopwatch(stopwatch);
System.Console.WriteLine(allPoints.Count.ToString() + " Points Total.");
System.Console.WriteLine("Loading Triangle Reference Strings took:");
stopwatch.Reset(); stopwatch.Start();
trianglesAsStrings = new List<string>();
if (!(reader.Name.Equals("Faces")))
{
reader.ReadToFollowing("Faces");
}
reader.Read();
while (!(reader.Name.Equals("Faces") && reader.NodeType.Equals(XmlNodeType.EndElement)))
{
if (reader.NodeType.Equals(XmlNodeType.Text))
{
trianglesAsStrings.Add(reader.Value);
}
reader.Read();
}
reader.Close();
stopwatch.Stop(); consoleOutStopwatch(stopwatch);
System.Console.WriteLine("Generating Triangle Collection took:");
stopwatch.Reset(); stopwatch.Start();
}
// assemble the allTriangles collection
//allTriangles = new List<ptsDTMtriangle>(trianglesAsStrings.Count);
allTrianglesBag = new ConcurrentBag<ptsDTMtriangle>();
Parallel.ForEach(trianglesAsStrings, refString =>
{
allTrianglesBag.Add(new ptsDTMtriangle(allPoints, refString));
}
);
allTriangles = allTrianglesBag.OrderBy(triangle => triangle.point1.x).ToList();
trianglesAsStrings = null; allTrianglesBag = null;
GC.Collect(); GC.WaitForPendingFinalizers();
memoryUsed = GC.GetTotalMemory(true) - memoryUsed;
LoadTimeStopwatch.Stop();
stopwatch.Stop();
System.Console.WriteLine(allTriangles.Count().ToString() + " Total Triangles.");
consoleOutStopwatch(stopwatch);
//
//System.Console.WriteLine("Indexing Triangles for adjacency took:");
//stopwatch.Reset(); stopwatch.Start();
//generateTriangleLineIndex(); start here
//stopwatch.Stop(); consoleOutStopwatch(stopwatch);
}
private ptsBoundingBox2d ComputeBB()
{
Debug.WriteLine("Starting ComputeBB on {0}.", Thread.CurrentThread.ManagedThreadId);
Stopwatch sw = new Stopwatch(); sw.Start();
var point1 = this.allPoints.FirstOrDefault().Value;
var returnBB = new ptsBoundingBox2d(
point1.x, point1.y, point1.z, point1.x, point1.y, point1.z);
Parallel.ForEach(this.allPoints,
p => returnBB.expandByPoint(p.Value.x, p.Value.y, p.Value.z)
);
sw.Stop();
Debug.WriteLine(String.Format("Compute BB took {0}", sw.Elapsed));
return returnBB;
}
