private void UpdateGeometry()
{
if (Branch == null|| Branch.Geometry == null)
return;
var lengthIndexedLine = new LengthIndexedLine(Branch.Geometry);
// thousand bombs and granates: ExtractPoint will give either a new coordinate or
// a reference to an existing object
Geometry = new Point((ICoordinate)lengthIndexedLine.ExtractPoint(Offset).Clone());
}
/// <summary>
/// return the coordinates along the gridProfile at stepSize intervals.
/// </summary>
/// <param name="gridProfile"></param>
/// <param name="stepSize"></param>
/// <returns></returns>
public static IEnumerable<ICoordinate> GetGridProfileCoordinates(ILineString gridProfile, double stepSize)
{
var lengthIndexedLine = new LengthIndexedLine(gridProfile);
if (0 == stepSize)
throw new ArgumentException("Stepsize too small", "stepSize");
int count = (int)((gridProfile.Length / stepSize) + 1);
for (int i=0; i<count; i++)
{
yield return (ICoordinate)lengthIndexedLine.ExtractPoint(i * stepSize).Clone();
}
}
private void UpdateGeometry()
{
if (Branch == null || Branch.Geometry == null)
return;
var lengthIndexedLine = new LengthIndexedLine(Branch.Geometry);
var offset = Branch.IsLengthCustom ? SnapChainage(Branch.Geometry.Length, (Branch.Geometry.Length / Branch.Length) * Chainage) : Chainage;
// always clone: ExtractPoint will give either a new coordinate or a reference to an existing object
Geometry = new Point((ICoordinate)lengthIndexedLine.ExtractPoint(offset).Clone());
}
/// <summary>
///
/// </summary>
/// <param name="wkt"></param>
/// <param name="start"></param>
/// <param name="end"></param>
public void RunExtractedLine(string wkt, double start, double end)
{
Console.WriteLine("=========================");
IGeometry g1 = rdr.Read(wkt);
Console.WriteLine("Input Geometry: " + g1);
Console.WriteLine("Indices to extract: " + start + " " + end);
LengthIndexedLine indexedLine = new LengthIndexedLine(g1);
IGeometry subLine = indexedLine.ExtractLine(start, end);
Console.WriteLine("Extracted Line: " + subLine);
double[] index = indexedLine.IndicesOf(subLine);
Console.WriteLine("Indices of extracted line: " + index[0] + " " + index[1]);
ICoordinate midpt = indexedLine.ExtractPoint((index[0] + index[1]) / 2);
Console.WriteLine("Midpoint of extracted line: " + midpt);
}