{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950866,-0.309604,0.000000,0.000000,0.172870,-0.530924,0.829600,0.000000,-0.256308,0.787180,0.560940,0.000000,-1636489.438763,5026039.908080,3557549.802442,1],    "boundingVolume": {    "region": [1.885500,0.595411,1.885646,0.595631,0.000000,8.812425]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/11_1448852.b3dm"}}}