{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951150,-0.308729,0.000000,0.000000,0.113093,-0.348423,0.930490,0.000000,-0.287009,0.884234,0.368452,0.000000,-1831413.217201,5642327.398604,2335367.620264,1],    "boundingVolume": {    "region": [1.884651,0.377342,1.884654,0.377345,0.000000,6.435041]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/6.b3dm"}}}