fixed dependencies

vendor/github.com/paulmach/orb/geojson/bbox.go

@@ -0,0 +1,38 @@
+package geojson
+
+import "github.com/paulmach/orb"
+
+// BBox is for the geojson bbox attribute which is an array with all axes
+// of the most southwesterly point followed by all axes of the more northeasterly point.
+type BBox []float64
+
+// NewBBox creates a bbox from a a bound.
+func NewBBox(b orb.Bound) BBox {
+	return []float64{
+		b.Min[0], b.Min[1],
+		b.Max[0], b.Max[1],
+	}
+}
+
+// Valid checks if the bbox is present and has at least 4 elements.
+func (bb BBox) Valid() bool {
+	if bb == nil {
+		return false
+	}
+
+	return len(bb) >= 4 && len(bb)%2 == 0
+}
+
+// Bound returns the orb.Bound for the BBox.
+func (bb BBox) Bound() orb.Bound {
+	if !bb.Valid() {
+		return orb.Bound{}
+	}
+
+	mid := len(bb) / 2
+
+	return orb.Bound{
+		Min: orb.Point{bb[0], bb[1]},
+		Max: orb.Point{bb[mid], bb[mid+1]},
+	}
+}