costmap_2d/VoxelGrid Message

Header header
    uint32 seq
    time stamp
    string frame_id
uint32[] data
geometry_msgs/Point32 origin
    float32 x
    float32 y
    float32 z
geometry_msgs/Vector3 resolutions
    float64 x
    float64 y
    float64 z
uint32 size_x
uint32 size_y
uint32 size_z