--- a/pkg/octree/loader.go	Tue Jan 15 09:54:46 2019 +0100
+++ b/pkg/octree/loader.go	Tue Jan 15 10:07:10 2019 +0100
@@ -18,7 +18,6 @@
 	"bytes"
 	"encoding/binary"
 	"log"
-	"os"
 
 	"github.com/golang/snappy"
 )
@@ -30,7 +29,7 @@
 		return nil, err
 	}
 
-	log.Printf("EPSG: %d\n", tree.EPSG)
+	log.Printf("info: EPSG: %d\n", tree.EPSG)
 
 	if err := tree.Min.Read(r); err != nil {
 		return nil, err
@@ -40,7 +39,7 @@
 		return nil, err
 	}
 
-	log.Printf("BBOX: [[%f, %f, %f], [%f, %f, %f]]\n",
+	log.Printf("info: BBOX: [[%f, %f, %f], [%f, %f, %f]]\n",
 		tree.Min.X, tree.Min.Y, tree.Min.Z,
 		tree.Max.X, tree.Max.Y, tree.Max.Z)
 
@@ -49,7 +48,7 @@
 		return nil, err
 	}
 
-	log.Printf("vertices: %d\n", numVertices)
+	log.Printf("info: vertices: %d\n", numVertices)
 
 	vertices := make([]Vertex, numVertices)
 	tree.vertices = vertices
@@ -65,7 +64,7 @@
 		return nil, err
 	}
 
-	log.Printf("triangles: %d\n", numTriangles)
+	log.Printf("info: triangles: %d\n", numTriangles)
 
 	indices := make([]int32, 3*numTriangles)
 	triangles := make([][]int32, numTriangles)
@@ -93,7 +92,7 @@
 		return nil, err
 	}
 
-	log.Printf("num nodes: %d\n", numNodes)
+	log.Printf("info: num nodes: %d\n", numNodes)
 
 	tree.index = make([]int32, numNodes)
 	entries := tree.index[1:]
@@ -112,19 +111,7 @@
 	return tree, nil
 }
 
-func LoadTree(fname string) (*Tree, error) {
-
-	f, err := os.Open(fname)
-	if err != nil {
-		return nil, err
-	}
-	defer f.Close()
-	return loadReader(
-		bufio.NewReader(
-			snappy.NewReader(f)))
-}
-
-func Deserialize(data []byte) (*Tree, error) {
+func deserialize(data []byte) (*Tree, error) {
 	return loadReader(
 		bufio.NewReader(
 			snappy.NewReader(