# README
orb/maptile/tilecover 
Package tilecover computes the covering set of tiles for an orb.Geometry.
It is a a port of the nodejs library tile-cover
which is a port from Google's S2 library. The same set of tests pass.
Usage
poly := orb.Polygon{}
tiles, err := tilecover.Geometry(poly, zoom)
if err != nil {
// indicates a non-closed ring
}
for t := range tiles {
// do something with tile
}
// to merge up to as much as possible to a specific zoom
tiles = tilecover.MergeUp(tiles, 0)
Similar libraries in other languages:
- tilecover - Node
# Functions
Bound creates a tile cover for the bound.
Collection returns the covering set of tiles for the geometry collection.
Geometry returns the covering set of tiles for the given geometry.
LineString creates a tile cover for the line string.
MergeUp will merge up the tiles in a given set up to the the give min zoom.
MergeUpPartial will merge up the tiles in a given set up to the the give min zoom.
MultiLineString creates a tile cover for the line strings.
MultiPoint creates a tile cover for the set of points,.
MultiPolygon creates a tile cover for the multi-polygon.
Point creates a tile cover for the point, i.e.
Polygon creates a tile cover for the polygon.
Ring creates a tile cover for the ring.
# Variables
ErrUnevenIntersections can be returned when clipping polygons and there are issues with the geometries, like the rings are not closed.