javascriptopenlayersturf
I am using turf.js for geometrical operation on openlayers3 features but i think it lacks support for "contains" operation.
There are these within and inside operations, but they return "false" when i check it with the polygon. Is there any other way to do this "contains" operation with turf.js or do i have to use the JSTS?
Here are two rectangles drawn on top of the map of the States.
This is WFS 1.0.0 filter with two Intersects combined with OR
<ogc:Filter>
<ogc:Or>
<ogc:Intersects>
<ogc:PropertyName>topp:the_geom</ogc:PropertyName>
<gml:Polygon>
<gml:outerBoundaryIs>
<gml:LinearRing>
<gml:coordinates decimal="." cs="," ts=" ">-106.20615648060549,39.43168954588457 -106.20615648060549,42.000086140018915 -104.73069460737938,42.000086140018915 -104.73069460737938,39.43168954588457 -106.20615648060549,39.43168954588457</gml:coordinates>
</gml:LinearRing>
</gml:outerBoundaryIs>
</gml:Polygon>
</ogc:Intersects>
<ogc:Intersects>
<ogc:PropertyName>topp:the_geom</ogc:PropertyName>
<gml:Polygon>
<gml:outerBoundaryIs>
<gml:LinearRing>
<gml:coordinates decimal="." cs="," ts=" ">-112.65447133396404,35.715711494796594 -112.65447133396404,38.06552114474929 -111.12436272469252,38.06552114474929 -111.12436272469252,35.715711494796594 -112.65447133396404,35.715711494796594</gml:coordinates>
</gml:LinearRing>
</gml:outerBoundaryIs>
</gml:Polygon>
</ogc:Intersects>
</ogc:Or>
</ogc:Filter>
Here you can see the result after sendind the request to WFS service at http://demo.opengeo.org/geoserver/wfs. The purple states are a new layer that was fetched from WFS.
Thus it is possible to include two spatial filters into one GetFeature request and it works at least with GeoServer WFS. Another thing is that in your case it is not necessary because Intersects filter should do what you want and select all features totally or partly inside the reference geometry. In other words Intersects is "Not Disjoint".
As noted in the comments, L.Circle does not have a getLatLngs method (hence your error). It does have a getLatLng method (note, no s). The latter returns the centre of the point. You need to use a polygon that approximates a circle, in order to have access to getLatLngs (i.e. the vertices of the approximate circle).
The treatment of circles as polygons with a dense array of vertices is quite common in GIS, because it's a lot easier to work with than a true circle.
Best Answer
You should be able to use the turf/boolean-contains module, noting that this only returns a true or false answer. Hope that helps