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 node and the
geometry. You could do something like:
for(SpatialDatabaseRecord record:results) {
double length = record.getGeometry().getLength();
double area = record.getGeometry().getArea();
}
If you no longer have the SpatialDatabaseRecord, but only the node, you can
still convert it to a geometry with:
Geometry geom = layer.getGeometryEncoder().decodeGeometry(node);
And then call the getLength() and getArea() methods. Check the JTS
documentation for more details.
On Fri, Sep 19, 2014 at 10:24 AM, Alireza Rezaei Mahdiraji <
alireza...@gmail.com> wrote:
>
> 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 geometries.
>
> I am aware of GeoPipeline.start( boxesLayer ).calculateLength() but it
> seems it computes
> for all nodes in a layer while I am interested in given set of nodes (two
> cases above).
>
>
> Thanks,
>
> Best,
> Alireza
>
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