/// <summary>
/// Logic that checks if a line drawn by user (representing a route segment) is ok to be futher processed
/// </summary>
/// <returns></returns>
private bool LineIsValidRouteSegment(LineString line, double tolerance = 0.01)
{
// We don't want lines that has invalid geometry
if (!line.IsValid)
{
return(false);
}
// We don't want lines that are not simple - i.e. self intersecting
if (!line.IsSimple)
{
return(false);
}
// We don't want lines that are closes - i.e. where the ends of the line is snapped together
if (line.IsClosed)
{
return(false);
}
// We don't want ends closer to each other than tolerance
if (line.StartPoint.Distance(line.EndPoint) < tolerance)
{
return(false);
}
// We don't want ends closer to the edge than tolerance
if (!GeometrySnapper.SnapToSelf(line, tolerance, false).Equals(line))
{
return(false);
}
return(true);
}
public bool LineIsValid(LineString lineString)
{
if (!lineString.IsValid)
{
LogValidationError("IsValid", lineString);
return(false);
}
// We don't want lines that are not simple - i.e. self intersecting
if (!lineString.IsSimple)
{
LogValidationError("IsSimple", lineString);
return(false);
}
// We don't want lines that are closes - i.e. where the ends of the line is snapped together
if (lineString.IsClosed)
{
LogValidationError("IsClosed", lineString);
return(false);
}
// We don't want ends closer to each other than tolerance
if (lineString.StartPoint.Distance(lineString.EndPoint) < _applicationSettings.Tolerance)
{
LogValidationError("EndsCloserToEachOtherThanTolereance", lineString);
return(false);
}
// We don't want ends closer to the edge than tolerance
if (!GeometrySnapper.SnapToSelf(lineString, _applicationSettings.Tolerance, false).Equals(lineString))
{
LogValidationError("EndsCloserToTheEdgeThanTolereance", lineString);
return(false);
}
return(true);
}
private static double ComputeBoundaryDistanceTolerance(IGeometry g0, IGeometry g1)
{
return(Math.Min(GeometrySnapper.ComputeSizeBasedSnapTolerance(g0),
GeometrySnapper.ComputeSizeBasedSnapTolerance(g1)));
}
public static Geometry snap(Geometry g, Geometry g2, double distance)
{
Geometry[] snapped = GeometrySnapper.Snap(g, g2, distance);
return(snapped[0]);
}
public static IGeometry Snap(IGeometry g, IGeometry g2, double distance)
{
var snapped = GeometrySnapper.Snap(g, g2, distance);
return(snapped[0]);
}
