From 1f43422a039169082780f2931959a9d4eead0897 Mon Sep 17 00:00:00 2001
From: kaaboaye <kaaboaye@gmail.com>
Date: Wed, 11 Sep 2019 13:49:59 +0200
Subject: [PATCH] add geometry collection support for contains

---
 lib/topo/contains.ex | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/topo/contains.ex b/lib/topo/contains.ex
index f83746b..a9bb560 100644
--- a/lib/topo/contains.ex
+++ b/lib/topo/contains.ex
@@ -16,7 +16,7 @@ defmodule Topo.Contains do
           | %Geo.Polygon{}
           | %Geo.MultiPolygon{}
 
-  @spec contains?(geo_struct, geo_struct) :: boolean
+  @spec contains?(geo_struct | %Geo.GeometryCollection{}, geo_struct) :: boolean
   def contains?(%Geo.Point{} = a, %Geo.Point{} = b), do: a == b
   def contains?(%Geo.Point{} = a, %Geo.MultiPoint{} = b), do: contains_all?(a, b, Geo.Point)
   def contains?(%Geo.Point{}, _), do: false
@@ -25,6 +25,10 @@ defmodule Topo.Contains do
   def contains?(%Geo.MultiPoint{} = a, %Geo.MultiPoint{} = b), do: contains_all?(a, b, Geo.Point)
   def contains?(%Geo.MultiPoint{}, _), do: false
 
+  def contains?(%Geo.GeometryCollection{geometries: geometries}, b) do
+    Enum.any?(geometries, &contains?(&1, b))
+  end
+
   def contains?(%Geo.LineString{} = a, %Geo.Point{} = b) do
     cond do
       List.first(a.coordinates) == List.last(a.coordinates) ->