Geometry Boost List: [ggl] space partitioning

Subject: [ggl] space partitioning
From: Adam Wulkiewicz (adam.wulkiewicz)
Date: 2011-01-21 20:46:53

One more thing. Querry in following form could be difficult to implement 
(or impossible for various containers) because there are no area or 
elements number bounds defined in the nearest_filter range generator.

BOOST_FOREACH(my_point_type const& p, my_spatial_index | 
boost::geometry::adaptors::nearest_filter(my_point_type(5, 5)) | 
boost::geometry::adaptors::filter(my_polygon))
{
   // do something with sorted points
}

Instead, it should look like this:

BOOST_FOREACH(my_point_type const& p, my_spatial_index | 
boost::geometry::adaptors::nearest_filter(my_point_type(5, 5), 
max_distance) | boost::geometry::adaptors::filter(my_polygon))
{
   // do something with sorted points
}

Btw, most basic spacial query might look like this:

BOOST_FOREACH(my_point_type const& p, my_points_vector | 
boost::geometry::adaptors::filter(my_aabb))
{
   // do something with sorted points
}

Regards,
Adam Wulkiewicz