{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950274,-0.311415,0.000000,0.000000,0.173786,-0.530302,0.829806,0.000000,-0.257872,0.786888,0.560633,0.000000,-1646475.253863,5024168.041538,3555598.921396,1],    "boundingVolume": {    "region": [1.887429,0.595092,1.887528,0.595208,0.000000,8.750799]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1345917.b3dm"}}}