/// <summary>
/// Creates a ToleranceCurve object from a histogram curve file.
/// </summary>
/// <param name="filePath">Name of the file containing the histogram curve.</param>
/// <returns>A new instance of ToleranceCurve, based on the specified file.</returns>
public static ToleranceCurve FromFile(string filePath)
{
XmlDocument xmlDoc = new XmlDocument();
using (Stream s = new FileInfo(filePath).OpenRead())
{
try
{
xmlDoc.Load(s);
}
catch (XmlException)
{
throw new XmlException("Tolerance file is not a right xml format");
}
}
//Tolerance Node List is a means of containing multiple Tolerance curve profiles within a histogram
XmlNodeList toleranceNodeList = xmlDoc.DocumentElement.SelectNodes("descendant::Tolerance");
if (toleranceNodeList.Count == 0)
{
throw new XmlException("There is no tolerance node in Tolerance file");
}
ToleranceCurve toleranceCurve = new ToleranceCurve();
for (int i = 0; i < toleranceNodeList.Count; i++)
{
ToleranceLegacy toleranceLegacy = new ToleranceLegacy();
XmlAttribute dpiRatio = toleranceNodeList[i].Attributes["dpiRatio"];
if (dpiRatio == null)
{
throw new XmlException("It is a invalid Tolerance file.\nThere isn't dpiRadio attribute in tolerance node.");
}
toleranceLegacy.DpiRatio = Convert.ToDouble(dpiRatio.InnerText, NumberFormatInfo.InvariantInfo);
XmlNodeList pointNodeList = toleranceNodeList[i].SelectNodes("Point");
if (pointNodeList.Count == 0)
{
toleranceCurve.SetGraph(0, 0);
toleranceCurve.SetGraph(255, 0);
return(toleranceCurve);
}
List <TolerancePoint> points = new List <TolerancePoint>();
for (int j = 0; j < pointNodeList.Count; j++)
{
XmlAttribute pointX = pointNodeList[j].Attributes["x"];
XmlAttribute pointY = pointNodeList[j].Attributes["y"];
if (pointX == null || pointY == null)
{
throw new XmlException("It is a invalid Tolerance file.\nThere isn't x or y attribute in Point node.");
}
if (toleranceLegacy.DpiRatio == defaultDpiRatio)
{
byte x = Convert.ToByte(pointX.InnerText, NumberFormatInfo.InvariantInfo);
double y = Convert.ToDouble(pointY.InnerText, NumberFormatInfo.InvariantInfo);
toleranceCurve.SetGraph(x, y);
}
else
{
TolerancePoint point = new TolerancePoint();
point.X = pointX.InnerText;
point.Y = pointY.InnerText;
points.Add(point);
}
}
if (toleranceLegacy.DpiRatio != defaultDpiRatio)
{
toleranceLegacy.Points = points;
toleranceCurve.AddTolerance(toleranceLegacy);
}
}
return(toleranceCurve);
}
/// <summary>
/// Store a tolerance node from Tolerance.xml to a array
/// </summary>
/// <param name="legacy">The tolerance node to add</param>
public void AddTolerance(ToleranceLegacy legacy)
{
tolerances.Add(legacy);
}
