Hi Ted: To answer your questions... 1) Yes, I believe so. Shapes that share an edge have a distance between them of 0 and are considered to intersect. MapServer doesn't have a means to easily detect adjacency as things sit now.
2) No, the code skips A if A is the selection layer. You could duplicate that layer in your mapfile though to get around that. Steve >>> On 11/4/2009 at 10:31 AM, in message <[email protected]>, Ted Spradley <[email protected]> wrote: > Hi, > > I want the user to select a polygon from the map, then return a hilited map > of the selected polygon as well as the adjacent polygons along with a list > of the names of each polygon. > > I have all of the parts of my desired query functioning independently, but > not all in concert. > > > >> featurequery: (layer A *must* be a polygon layer, version 5.4 supports >> LINE layers as well) >> - find the first geometry that intersects point x,y in layer A and use >> it to select geometries that intersect it in layer B >> - find the first geometry that intersects point x,y in layer A and use >> it to select geometries that intersect it in all other layers >> > > Two questions: > 1. With mode=featurequery, does setting TOLERANCE 0 in polygon layer B > return the adjacent polygons > to the polygon return from layer A? > 2. If I make a "mode=featurequery" with an img.x & img.y against a polygon > layer slayer=A, if I also specify qlayer=A will MapServer query layer A > first to find the polygon containing the point, then query layer A again to > find the intersecting (adjacent) polygons? > > Thanks, > Ted S. _______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
