Hello All,
I am trying to create the shortest path between 48 points, but FME workbench does not display the path but at the end, I get a spider-like path (No Path) on a map. Please see image below. Thanks
+18- Contributor
I believe the From_To is supposed to be a line with just two points (start and end of the Path that is to be calculated). The Network needs to be a set of connected line strings.
IN this case the From_To is a line string with 48 vertices. That might cause the issue.
erik_jan wrote:
I believe the From_To is supposed to be a line with just two points (start and end of the Path that is to be calculated). The Network needs to be a set of connected line strings.
IN this case the From_To is a line string with 48 vertices. That might cause the issue.
+18- Contributor
gsgoraya wrote:
Thank you Erik for the reply. So what are your ecommendations?
erik_jan wrote:
Use only the first and last point of the line like this:
+18- Contributor
gsgoraya wrote:
Thanks again Erik, I am using 2016.1 version, I do not have line builder transformer. Also If I use the first and last point, the other points will be excluded from the route.
The ShortestPathFinder transformer is a transformer to find the shortest path between two points using a network of lines.
Hi @gsgoraya, The current ShortestPathFinder (at least in FME 2016.1+) accepts a polyline (i.e. a line having intermediate vertices) as a From-To line, but every vertex of the line has to match a node of the Network (exact match by default, or within a tolerance if you have specified the Snapping Tolerance parameter).
Firstly make sure if every vertex of the From-To line match a network node.
Also, remember that the ShortestPathFinder expects the lines to be properly noded, meaning that it won't route over crossing lines unless there's a node at the intersection. You can use the TopologyBuilder if you need to fix that.
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