{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950394,-0.311050,0.000000,0.000000,0.173966,-0.531544,0.828974,0.000000,-0.257308,0.786190,0.561870,0.000000,-1642883.772305,5019734.710396,3563460.135425,1],    "boundingVolume": {    "region": [1.887045,0.596595,1.887142,0.596694,0.000000,8.795997]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1393741.b3dm"}}}