From c9b923786f0147bb27ae673c911350cc37d06e99 Mon Sep 17 00:00:00 2001
From: Rory McCann <rory@technomancy.org>
Date: Wed, 13 Feb 2019 13:18:37 +0100
Subject: [PATCH 1/3] GeometryCollection gets ::empty constructor and things to
 see how many geometries it contains

---
 geo-types/src/geometry_collection.rs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/geo-types/src/geometry_collection.rs b/geo-types/src/geometry_collection.rs
index 45410e7cb..0d9a14b2d 100644
--- a/geo-types/src/geometry_collection.rs
+++ b/geo-types/src/geometry_collection.rs
@@ -11,6 +11,24 @@ pub struct GeometryCollection<T>(pub Vec<Geometry<T>>)
 where
     T: CoordinateType;
 
+impl<T: CoordinateType> GeometryCollection<T> {
+    /// Return an empty GeometryCollection
+    pub fn empty() -> GeometryCollection<T> {
+        GeometryCollection(Vec::new())
+    }
+
+    /// Number of geometries in this GeometryCollection
+    pub fn len(&self) -> usize {
+        self.0.len()
+    }
+
+    /// Is this GeometryCollection empty
+    pub fn is_empty(&self) -> bool {
+        self.0.is_empty()
+    }
+}
+
+
 impl<T: CoordinateType, IG: Into<Geometry<T>>> From<IG> for GeometryCollection<T> {
     fn from(x: IG) -> Self {
         GeometryCollection(vec![x.into()])

From dbf121fa5d15f045cc6ee28a16f0898b151c78bb Mon Sep 17 00:00:00 2001
From: Rory McCann <rory@technomancy.org>
Date: Wed, 13 Feb 2019 13:19:59 +0100
Subject: [PATCH 2/3] doc comments

---
 geo-types/src/geometry_collection.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/geo-types/src/geometry_collection.rs b/geo-types/src/geometry_collection.rs
index 0d9a14b2d..2663a64ff 100644
--- a/geo-types/src/geometry_collection.rs
+++ b/geo-types/src/geometry_collection.rs
@@ -29,12 +29,15 @@ impl<T: CoordinateType> GeometryCollection<T> {
 }
 
 
+/// Convert any Geometry (or anything that can be converted to a Geometry) into a
+/// GeometryCollection
 impl<T: CoordinateType, IG: Into<Geometry<T>>> From<IG> for GeometryCollection<T> {
     fn from(x: IG) -> Self {
         GeometryCollection(vec![x.into()])
     }
 }
 
+/// Collect Geometries (or what can be converted to a Geometry) into a GeometryCollection
 impl<T: CoordinateType, IG: Into<Geometry<T>>> FromIterator<IG> for GeometryCollection<T> {
     fn from_iter<I: IntoIterator<Item = IG>>(iter: I) -> Self {
         GeometryCollection(iter.into_iter().map(|g| g.into()).collect())

From 382c0200b7401dcc27ec75b4fc11c7b547312997 Mon Sep 17 00:00:00 2001
From: Corey Farwell <coreyf@rwell.org>
Date: Sat, 16 Feb 2019 21:01:04 -0500
Subject: [PATCH 3/3] Update geometry_collection.rs

---
 geo-types/src/geometry_collection.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/geo-types/src/geometry_collection.rs b/geo-types/src/geometry_collection.rs
index 2663a64ff..90e154734 100644
--- a/geo-types/src/geometry_collection.rs
+++ b/geo-types/src/geometry_collection.rs
@@ -13,7 +13,7 @@ where
 
 impl<T: CoordinateType> GeometryCollection<T> {
     /// Return an empty GeometryCollection
-    pub fn empty() -> GeometryCollection<T> {
+    pub fn new() -> GeometryCollection<T> {
         GeometryCollection(Vec::new())
     }