/// <summary>
/// Reads point data from the specified file and stores it in the object.
/// </summary>
/// <param name="anglesInDegrees">Specifies whether the angles in a G330 line are in degrees or radians (default).</param>
/// <exception cref="Exception">
/// Thrown for any of the following reasons:<br></br><br></br>
/// Multiple control characters found for a single point.<br></br>Point has no corresponding G801 line in MSR file.<br></br>
/// Missing G800 line in MSR file after parsing points.<br></br>No points found in MSR file.
/// </exception>
private void ReadFile(bool anglesInDegrees)
{
//Read the lines in from the file
List <string> lines = null;
lines = ReadTextLines();
Int32 numberOfStarts = default(Int32);
Int32 numberOfEnds = default(Int32);
foreach (string line in lines)
{
if (line.ToLowerInvariant().Contains("start"))
{
numberOfStarts = numberOfStarts + 1;
}
if (line.ToLowerInvariant().Contains("end"))
{
numberOfEnds = numberOfEnds + 1;
}
}
if (numberOfStarts > 1)
{
throw new Exception(string.Format("MSR File '{0}' has more than one START line.", Path));
}
if (numberOfEnds > 1)
{
throw new Exception(string.Format("MSR File '{0}' has more than one END line.", Path));
}
Angles matrix = null;
_points = new List <PointData>();
_headerLines = new List <string>();
bool isStillInHeader = true;
for (int lineIndex = 0; lineIndex <= lines.Count - 1; lineIndex++)
{
string line = null;
line = lines[lineIndex].Trim();
PointData point = null;
if (line.StartsWith("G330"))
{
// G330 line specifies the orientation of the machine for and following points
isStillInHeader = false;
//Read in the euler angles
Radian a = default(Radian);
Radian b = default(Radian);
Radian c = default(Radian);
string characters = "";
char lastControlChar = '~';
for (int charIndex = 4; charIndex <= line.Length - 1; charIndex++)
{
if (IsControlChar(line[charIndex]))
{
switch (lastControlChar)
{
case 'A':
if (anglesInDegrees)
{
a = (Degree)Convert.ToDouble(characters);
}
else
{
a = Convert.ToDouble(characters);
}
break;
case 'B':
if (anglesInDegrees)
{
b = (Degree)Convert.ToDouble(characters);
}
else
{
b = Convert.ToDouble(characters);
}
break;
case 'C':
if (anglesInDegrees)
{
c = (Degree)Convert.ToDouble(characters);
}
else
{
c = Convert.ToDouble(characters);
}
break;
}
lastControlChar = line[charIndex];
characters = "";
}
else if (line[charIndex] != ' ')
{
characters += line[charIndex];
}
}
matrix = new Angles(a, b, c, Conventions.XYZ);
}
else if (line.StartsWith("G800"))
{
// G800 line is the nominal point and is followed by the G801 line which is the measured point
isStillInHeader = false;
//Parse the characters in the line
point = new PointData();
string characters = "";
char lastControlChar = '~';
var controlCharactersFound = new List <string>();
for (int charIndex = 4; charIndex <= line.Length - 1; charIndex++)
{
if (IsControlChar(line[charIndex]))
{
if (controlCharactersFound.Contains(line[charIndex].ToString()))
{
throw new Exception(
string.Format(
"Control character '{0}' found multiple times for point number {1} in MSR File '{2}'",
line[charIndex],
_points.Count + 1,
Path));
}
controlCharactersFound.Add(line[charIndex].ToString());
StoreValue800(ref point, lastControlChar, characters);
lastControlChar = line[charIndex];
characters = "";
}
else if (line[charIndex] != ' ')
{
characters += line[charIndex];
}
}
StoreValue800(ref point, lastControlChar, characters);
line = lines[lineIndex + 1].Trim();
if (line.StartsWith("G801"))
{
characters = "";
lastControlChar = '~';
controlCharactersFound = new List <string>();
for (int intChar = 4; intChar <= line.Length - 1; intChar++)
{
if (IsControlChar(line[intChar]))
{
if (controlCharactersFound.Contains(line[intChar].ToString()))
{
throw new Exception(
string.Format(
"Control character '{0}' found multiple times for point number {1} in MSR File '{2}'",
line[intChar],
_points.Count + 1,
Path));
}
controlCharactersFound.Add(line[intChar].ToString());
StoreValue801(ref point, lastControlChar, characters);
lastControlChar = line[intChar];
characters = "";
}
else if (line[intChar] != ' ')
{
characters += line[intChar];
}
}
StoreValue801(ref point, lastControlChar, characters);
//Store the point
if (matrix != null)
{
point.ApplyMatrix(matrix);
}
point.CalculateMeasuredSurfacePoint();
_points.Add(point);
lineIndex += 1;
}
else
{
// Throw an exception as all 800 lines must be followed by an 801 line
throw new Exception(string.Format("Point number {0} has no G801 line in MSR File '{1}'",
point.PointNumber,
Path));
}
}
else if (line.StartsWith("G801"))
{
// We have lost a line here so throw an exception
throw new Exception(string.Format("Missing G800 line after reading {0} points in MSR File '{1}'",
_points.Count,
Path));
}
else if (isStillInHeader)
{
_headerLines.Add(lines[lineIndex]);
}
}
// Throw an exception if no points were found in the file
if (_points.Count == 0)
{
throw new Exception(string.Format("No points found in MSR File '{0}'", Path));
}
}