Hi All,
I am working on the line network wherein i want to find the pseudonodes. can somebody help me with this.
Thank you in advance !!
Solved
pseudonode in line network
+5- Contributor
Best answer by david_r
Using the TopologyBuilder to find nodes that are connected to only two edges:
+17- Supporter
If you mean the start/end vertices you can try the TopologyBuilder, the Node port will provide you with all the start/end vertices of your data.
If you need ALL of the vertices use a chopper set to 1
hope this helps.
Hi @dandekarpriya, I'm not sure what "pseudo node" means correctly. If you define that "pseudo node" is "a node connecting only two edges", you can determine if a node is a pseudo node based on the number of elements of the _node_angle{} list added to the nodes which are output via the Node port of a TopologyBuilder.
+2My interpretation of what @dandekarpriya means by pseudo node given that he mentioned network:
Do you have the network links and nodes geometries and want to identify where a node is related to only two links?
If so PointOnLineOverlayer creates an Overlap Count Attribute on both links and nodes. If this value equals 2 on the nodes it is by my definition a pseudo node. Test the nodes for this value equals 2. This assumes a clean network where the node geometry equal the end of the link.
+5- Contributor
takashi wrote:
Hi @dandekarpriya, I'm not sure what "pseudo node" means correctly. If you define that "pseudo node" is "a node connecting only two edges", you can determine if a node is a pseudo node based on the number of elements of the _node_angle{} list added to the nodes which are output via the Node port of a TopologyBuilder.
Hi Takashi ,
pseudonode is nothing but a node which Appears along a continuous line and divides it unnecessarily or where a single line connects with itself or where only two Polylines intersect.
+5- Contributor
mark_f wrote:
My interpretation of what @dandekarpriya means by pseudo node given that he mentioned network:
Do you have the network links and nodes geometries and want to identify where a node is related to only two links?
If so PointOnLineOverlayer creates an Overlap Count Attribute on both links and nodes. If this value equals 2 on the nodes it is by my definition a pseudo node. Test the nodes for this value equals 2. This assumes a clean network where the node geometry equal the end of the link.
i have a line network where i want to identify the pseudo nodes.
+5- Contributor
itay wrote:
If you mean the start/end vertices you can try the TopologyBuilder, the Node port will provide you with all the start/end vertices of your data.
If you need ALL of the vertices use a chopper set to 1
hope this helps.
gis2020 wrote:
Hi Takashi ,
pseudonode is nothing but a node which Appears along a continuous line and divides it unnecessarily or where a single line connects with itself or where only two Polylines intersect.
+17- Supporter
gis2020 wrote:
thank you itay. i have used this for finding the dangles and overshoots could you please explain it in detailed how this can be used for finding the pseudonodes
+5- Contributor
yes that's right . i have tried to use to use the node angles and it work fine. Thank you takashi
+5- Contributor
david_r wrote:
Using the TopologyBuilder to find nodes that are connected to only two edges:
Thanks again :)
+5- Contributor
david_r wrote:
Using the TopologyBuilder to find nodes that are connected to only two edges:
how i can get information of associated edges to each node. i mean the arc_id?
gis2020 wrote:
how i can get information of associated edges to each node. i mean the arc_id?
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