+8Hallo FME community,
I have a network consisting of interconnected lines. on the other side I have some points lying on the line. I need to cut out my network based on these points and the line between two points must be aggregated with each other.
Also, PointOnAreaOverlayer couldn't help me.
I would be grateful if someone can help me how to do this process.
Best answer by geomancer
Replace the Aggregator with a LineCombiner, pass the results and the points to a TopologyBuilder. The Edge port will contain the lines you are looking for. Mind that the points need to lay exactly on the lines for this to work.
Different approach: Buffer the points by a tiny amount, clip the lines with the buffers, deaggregate the outside results, use a NetworkTopologyCalculator, and aggregate on the _network_id.
+8I think you need the TopologyBuilder, maybe NetworkTopologyCalculator.
it didn't work. I need a transformation like Split line at point in ArcGIS
+13
+47Replace the Aggregator with a LineCombiner, pass the results and the points to a TopologyBuilder. The Edge port will contain the lines you are looking for. Mind that the points need to lay exactly on the lines for this to work.
+8@tomfriedl yes
I have a complicated network. in this network the lines are connected to each other. I first aggregate the lines to get one line then I have 10 points that need to split my line. When I use PointOnLineOverlayer I get the line I had before the aggregator. That means instead of 11 lines, I get 55,000 lines that are not cut out on the point
+8Replace the Aggregator with a LineCombiner, pass the results and the points to a TopologyBuilder. The Edge port will contain the lines you are looking for. Mind that the points need to lay exactly on the lines for this to work.
I don't know why it doesn't work for me. as you can see i have to get 6 lines as a result but i get 78000 lines.
+47Replace the Aggregator with a LineCombiner, pass the results and the points to a TopologyBuilder. The Edge port will contain the lines you are looking for. Mind that the points need to lay exactly on the lines for this to work.
What happens when you aggregate the features coming out of the Edge port?
EDIT: No, this won't work.
+8What happens when you aggregate the features coming out of the Edge port?
EDIT: No, this won't work.
+47Replace the Aggregator with a LineCombiner, pass the results and the points to a TopologyBuilder. The Edge port will contain the lines you are looking for. Mind that the points need to lay exactly on the lines for this to work.
I have no access to ArcGIS, but searching on the internet leads me to expect it will not aggregate all lines between points. Instead it works just like the PointOnLineOverlayer.
You have a large maze of lines, so many orignal lines will be kept in the results.
+8I have no access to ArcGIS, but searching on the internet leads me to expect it will not aggregate all lines between points. Instead it works just like the PointOnLineOverlayer.
You have a large maze of lines, so many orignal lines will be kept in the results.
it looks like i don't have a solution
+47Replace the Aggregator with a LineCombiner, pass the results and the points to a TopologyBuilder. The Edge port will contain the lines you are looking for. Mind that the points need to lay exactly on the lines for this to work.
Different approach: Buffer the points by a tiny amount, clip the lines with the buffers, deaggregate the outside results, use a NetworkTopologyCalculator, and aggregate on the _network_id.
+47Replace the Aggregator with a LineCombiner, pass the results and the points to a TopologyBuilder. The Edge port will contain the lines you are looking for. Mind that the points need to lay exactly on the lines for this to work.
Something like this (insert your own data).
+8Different approach: Buffer the points by a tiny amount, clip the lines with the buffers, deaggregate the outside results, use a NetworkTopologyCalculator, and aggregate on the _network_id.
Many Thanx. it works 😊
+47Different approach: Buffer the points by a tiny amount, clip the lines with the buffers, deaggregate the outside results, use a NetworkTopologyCalculator, and aggregate on the _network_id.
My pleasure! 😊
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