public ILineString PerformShortestPathAnalysis(bool usesCondensedGraph)
{
try
{
// Some validation code first
if (_analysisLayer == null)
{
throw new ArgumentException("The Analysis has not been created...");
}
if (_userClickPointForSource == null)
{
throw new ArgumentException("The User Click Point - Source has not been created...");
}
if (_userClickPointsForDestination == null)
{
throw new ArgumentException("The User Click Point - Destination has not been created...");
}
// Pass it to the graph factory.
var gf = new GraphFactory(_analysisLayer);
// Reconstruct the graph, taking into account where the user wants the source and destination to be. If the condensed flag is
// set to true then it uses the 'Superedge' pricniple. If not is just applies a normal Dijsktra approach - slower, but more accurate
// currently. TODO: Improve the condensed version. Theres currently a logic flaw in there. Oooops.
if (!gf.ReconstructGraph(_splitSourceLine, _splitDestinationLine,
_userClickPointForSource, _userClickPointsForDestination, Condensed))
{
return(null);
}
// Perform the analysis, returning the shortest path as a Linestring.
return(gf.PerformShortestPathAnalysis(SourcePointForCalculation,
DestinationPointForCalculation,
Condensed));
}
catch (Exception)
{
return(null);
}
}
public ILineString PerformShortestPathAnalysis(bool usesCondensedGraph)
{
try
{
// Some validation code first
if (_analysisLayer == null)
throw new ArgumentException("The Analysis has not been created...");
if (_userClickPointForSource == null)
throw new ArgumentException("The User Click Point - Source has not been created...");
if (_userClickPointsForDestination == null)
throw new ArgumentException("The User Click Point - Destination has not been created...");
// Pass it to the graph factory.
var gf = new GraphFactory(_analysisLayer);
// Reconstruct the graph, taking into account where the user wants the source and destination to be. If the condensed flag is
// set to true then it uses the 'Superedge' pricniple. If not is just applies a normal Dijsktra approach - slower, but more accurate
// currently. TODO: Improve the condensed version. Theres currently a logic flaw in there. Oooops.
if (!gf.ReconstructGraph(_splitSourceLine, _splitDestinationLine,
_userClickPointForSource, _userClickPointsForDestination, Condensed))
return null;
// Perform the analysis, returning the shortest path as a Linestring.
return gf.PerformShortestPathAnalysis(SourcePointForCalculation,
DestinationPointForCalculation,
Condensed);
}
catch (Exception)
{
return null;
}
}