{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.899265,-0.437405,0.000000,0.000000,0.282620,-0.581040,0.763229,0.000000,-0.332902,0.684415,0.648654,0.000000,-2126290.037483,4371454.600240,4115309.027209,1],    "boundingVolume": {    "region": [2.023424,0.705767,2.023591,0.705862,0.000000,7.273758]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1828919.b3dm"}}}