Geometry of the path / display

I work with java api (oracle.spatial.network.lod) to perform a network analysis and had a slight problem with the result defined by analysis features. The results of the analysis functions (most anyway) are LogicalSubPath and I wonder how I can show these results (e.g.: the shortest path between two nodes) because they do not understand the information of geometry? SpatialPath has a function getGeometry, but it seems not all methods to transform the LogicalSubPath of a SpatialPath. I use the link_ids to retrieve the geometry of the DB and then make them, but it of a bit difficult to handle and seems inefficient (especially for the great bond games). I'm guessing there's a much better way to do it. I do not have an array of path associated with the network, simply links and nodes, so this is a constraint. Thank you.

You can convert a LogicalSubPath to SpatialPath by using the readSpatialPath method.

A segment of example code that illustrates the transformation is given below. It also shows how to write a path and a subpath into tables (tables of path and the subpath of the network) database using writePath and writeSubPath methods.

The network needs to be registered as space and path tables and the subpath must be stored in the metadata.

The following code segment writes two way of reference geometry
and tables sous-tracé in PATH and subpath$, respectively.
RefPath LogicalLightPath = null;
If (sous-tracé instanceof LogicalSubPath)
refPath = ((LogicalSubPath) subPath) .getReferencePath ();
on the other
refPath = subPath.getReferenceLightPath ();
LogicalPath path = refPath (LogicalPath);
SPath = networkIO.readSpatialPath (path) SpatialPath;
SpatialSubPath spatialSubPath = networkIO.readSpatialSubPath (subPath);
networkIO.writePath (sPath, "resultPath", null);
networkIO.writeSubPath(spatialSubPath,1,"resSubPath",null);

In the segment of code, the variable subpath is the LogicalSubPath and networkIO is being output.

Tags: Database

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