{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950071,-0.312035,0.000000,0.000000,0.174009,-0.529815,0.830070,0.000000,-0.258468,0.786972,0.560240,0.000000,-1650280.154620,5024698.183480,3553101.767965,1],    "boundingVolume": {    "region": [1.888049,0.594610,1.888213,0.594741,0.000000,12.501222]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1459280.b3dm"}}}