AOI use distance from InitAOI

Author: xiaonanln

XZListAOIManager.go

@@ -14,6 +14,7 @@ type XZListAOIManager struct {
 	zSweepList *yAOIList
 }
 
+// NewXZListAOIManager creates a new XZListAOIManager
 func NewXZListAOIManager() AOIManager {
 	return &XZListAOIManager{
 		xSweepList: newXAOIList(),

aoi.go

@@ -1,12 +1,13 @@
 package aoi
 
+// Coord is the type for coordinate axes values
 type Coord float32
 
 type AOI struct {
-	x        Coord
-	y        Coord
-	dist     Coord
-	Data     interface{}
+	x    Coord
+	y    Coord
+	dist Coord
+	Data interface{}
 
 	callback AOICallback
 	implData interface{}