{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897911,-0.440176,0.000000,0.000000,0.282570,-0.576413,0.766748,0.000000,-0.336568,0.686561,0.644481,0.000000,-2149664.422042,4385081.222393,4088760.992761,1],    "boundingVolume": {    "region": [2.026528,0.700310,2.026655,0.700379,0.000000,17.014377]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/3_852121.b3dm"}}}