/// <summary>
/// Delegate called to process every line feature in the model.
/// Called by <c>Build</c>
/// </summary>
/// <param name="o">An item found in the spatial index.</param>
/// <returns>True (always), indicating that the spatial query should keep going.</returns>
/// <exception cref="Exception">If an error occurred building a polygon.</exception>
bool ProcessLine(ISpatialObject o)
{
Debug.Assert(o is LineFeature);
LineFeature line = (LineFeature)o;
try
{
line.BuildPolygons(m_NewPolygonExtent, m_Index);
return(true);
}
catch (Exception e)
{
string msg = String.Format("Error building polygon starting at line {0} ({1})",
line.ToString(), e.Message);
throw new Exception(msg);
}
}
