Re: [Neo4j] Calculate lenght and area in spatial neo4j

2014-09-23 Thread Craig Taverner
Yes, you need to construct the polygon to calculate the area (or length). JTS has all the tools required to do this. Look at the GeometryFactory. On Tue, Sep 23, 2014 at 3:22 PM, Alireza Rezaei Mahdiraji < alireza...@gmail.com> wrote: > > Thanks Craig, > > What about the case where we have two po

Re: [Neo4j] Calculate lenght and area in spatial neo4j

2014-09-23 Thread Alireza Rezaei Mahdiraji
Thanks Craig, What about the case where we have two point nodes, how do we compute the length, or when we have a set of points related to a polygon, how do we compute the area? Shall we create linestring and polygon first and then compute length and area? Thanks, Best, Alireza On Friday,

Re: [Neo4j] Calculate lenght and area in spatial neo4j

2014-09-19 Thread Craig Taverner
I'm assuming these are nodes that represent geometries. In that case you should convert them to the JTS Geometry object and get the length and area from that. For example, if you did a search with the GeoPipeline, you will return a collection of SpatialDatabaseRecord objects, which contain the nod

[Neo4j] Calculate lenght and area in spatial neo4j

2014-09-19 Thread Alireza Rezaei Mahdiraji
Hi All, I need to calculate length and area of given node(s) in two cases: 1- for length either a node with line string geometry is given or two nodes with point geometry 2- for polygon either a node with polygon geometry is given or the set of points of the polygon as separate point geomet