[postgis-users] Error in spatial graph Table

Fred Lehodey lehodey at gmail.com
Thu Feb 25 07:02:35 PST 2010


Hi Frank,
if node 165 is the "from node" of the 4 lines... it's all right.

Fred.



On Thu, Feb 25, 2010 at 2:57 PM, FRANK RADA <frankrada at gmail.com> wrote:

> Hi, i build a topology using pgrouting`s function
> assign_vertex_id('vias', 0.1, 'the_geom', 'gid'); after that i found
> one vertex that constains the follow structure
>  as you see, the node_id code don`t appears in the column target_id.
>
> the question is, is bad the graph?
>
> this is the query from edges and node tables
> "node_id";"name_street";"source_id";"target_id"
> 165;"AV0400000C070";165;151
> 165;"CL0900000C050";165;166
> 165;"CL0900000C060";165;164
> 165;"AV0400000C060";165;174
>
> this is the aproximate graphical representation, the vertices of the
> graph are connected to other edges, for simplify i put only the graph
> shown in the table
>
>                                          |
>                                          |
>                                          |
>                     ---------------------*-----------------------
>                                          |
>                                          |
>                                          |
> * is the node which converge the edges.
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