1 files changed, 42 insertions, 0 deletions
diff --git a/vendor/github.com/golang/geo/s2/point_vector.go b/vendor/github.com/golang/geo/s2/point_vector.go
new file mode 100644
index 000000000..f8e6f65b5
--- /dev/null
+++ b/vendor/github.com/golang/geo/s2/point_vector.go
@@ -0,0 +1,42 @@
+// Copyright 2017 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package s2
+
+// Shape interface enforcement
+var (
+	_ Shape = (*PointVector)(nil)
+)
+
+// PointVector is a Shape representing a set of Points. Each point
+// is represented as a degenerate edge with the same starting and ending
+// vertices.
+//
+// This type is useful for adding a collection of points to an ShapeIndex.
+//
+// Its methods are on *PointVector due to implementation details of ShapeIndex.
+type PointVector []Point
+
+func (p *PointVector) NumEdges() int                     { return len(*p) }
+func (p *PointVector) Edge(i int) Edge                   { return Edge{(*p)[i], (*p)[i]} }
+func (p *PointVector) ReferencePoint() ReferencePoint    { return OriginReferencePoint(false) }
+func (p *PointVector) NumChains() int                    { return len(*p) }
+func (p *PointVector) Chain(i int) Chain                 { return Chain{i, 1} }
+func (p *PointVector) ChainEdge(i, j int) Edge           { return Edge{(*p)[i], (*p)[j]} }
+func (p *PointVector) ChainPosition(e int) ChainPosition { return ChainPosition{e, 0} }
+func (p *PointVector) Dimension() int                    { return 0 }
+func (p *PointVector) IsEmpty() bool                     { return defaultShapeIsEmpty(p) }
+func (p *PointVector) IsFull() bool                      { return defaultShapeIsFull(p) }
+func (p *PointVector) typeTag() typeTag                  { return typeTagPointVector }
+func (p *PointVector) privateInterface()                 {}