{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897893,-0.440213,0.000000,0.000000,0.282584,-0.576381,0.766766,0.000000,-0.336604,0.686564,0.644459,0.000000,-2149896.584507,4385100.381930,4088619.330997,1],    "boundingVolume": {    "region": [2.026569,0.700281,2.026696,0.700350,0.000000,9.943482]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/3_851917.b3dm"}}}