/// <summary>
/// Reads a TrimbleTINModel using the provided reader
/// </summary>
public void Read(BinaryReader reader, byte[] bytes)
{
var LoadErrMsg = "";
try
{
LoadErrMsg = "Error reading header";
Header.Read(reader);
var identifier = System.Text.Encoding.ASCII.GetString(Header.FileSignature);
if (identifier != Consts.TTM_FILE_IDENTIFIER)
{
throw new TTMFileReadException("File is not a Trimble TIN Model.");
}
// Check file version
if (Header.FileMajorVersion != Consts.TTM_MAJOR_VERSION ||
Header.FileMinorVersion != Consts.TTM_MINOR_VERSION)
{
throw new TTMFileReadException($"TTM_Optimized.Read(): Unable to read this version {Header.FileMajorVersion}: {Header.FileMinorVersion} of Trimble TIN Model file. Expected version: { Consts.TTM_MAJOR_VERSION}: {Consts.TTM_MINOR_VERSION}");
}
ModelName = ASCIIEncoding.ASCII.GetString(Header.DTMModelInternalName).TrimEnd(new[] { '\0' });
LoadErrMsg = "Error reading vertices";
reader.BaseStream.Position = Header.StartOffsetOfVertices;
Vertices.Read(reader, Header);
//Vertices.Read(bytes, Header.StartOffsetOfVertices, Header);
LoadErrMsg = "Error reading triangles";
//reader.BaseStream.Position = Header.StartOffsetOfTriangles;
//Triangles.Read(reader, Header);
Triangles.Read(bytes, Header.StartOffsetOfTriangles, Header);
LoadErrMsg = "Error reading edges";
reader.BaseStream.Position = Header.StartOffsetOfEdgeList;
Edges.Read(reader, Header);
LoadErrMsg = "Error reading start points";
reader.BaseStream.Position = Header.StartOffsetOfStartPoints;
StartPoints.Read(reader, Header);
}
catch (TTMFileReadException)
{
throw; // pass it on
}
catch (Exception e)
{
throw new TTMFileReadException($"Exception at TTM loading phase {LoadErrMsg}", e);
}
}
public void Read(BinaryReader reader)
{
string LoadErrMsg = "";
Loading = true;
try
{
try
{
LoadErrMsg = "Error reading header";
Header = TTMHeader.NewHeader();
Header.Read(reader);
var identifier = Encoding.ASCII.GetString(Header.FileSignature);
if (identifier != Consts.TTMFileIdentifier)
{
throw new TTMFileReadException("File is not a Trimble TIN Model.");
}
// Check file version
if (Header.FileMajorVersion != Consts.TTMMajorVersion
|| Header.FileMinorVersion != Consts.TTMMinorVersion)
{
throw new TTMFileReadException($"TTM.Read(): Unable to read this version {Header.FileMajorVersion}: {Header.FileMinorVersion} of Trimble TIN Model file. Expected version: { Consts.TTMMajorVersion}: {Consts.TTMMinorVersion}");
}
Clear();
ModelName = ASCIIEncoding.ASCII.GetString(Header.DTMModelInternalName).TrimEnd(new []{'\0'});
LoadErrMsg = "Error reading vertices";
reader.BaseStream.Position = Header.StartOffsetOfVertices;
(Vertices as TTMVertices).Read(reader, Header);
LoadErrMsg = "Error reading triangles";
reader.BaseStream.Position = Header.StartOffsetOfTriangles;
(Triangles as TTMTriangles).Read(reader, Header, Vertices);
LoadErrMsg = "Error reading edges";
reader.BaseStream.Position = Header.StartOffsetOfEdgeList;
Edges.Read(reader, Header, Triangles as TTMTriangles);
LoadErrMsg = "Error reading start points";
reader.BaseStream.Position = Header.StartOffsetOfStartPoints;
StartPoints.Read(reader, Header, Triangles);
}
catch (TTMFileReadException)
{
Clear();
throw; // pass it on
}
catch (Exception E)
{
Clear();
throw new TTMFileReadException($"Exception at TTM loading phase {LoadErrMsg}", E);
}
}
finally
{
Loading = false;
}
}
