{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949137,-0.314864,0.000000,0.000000,0.115977,-0.349605,0.929691,0.000000,-0.292458,0.881596,0.370483,0.000000,-1866195.779081,5625522.271451,2348250.540756,1],    "boundingVolume": {    "region": [1.891056,0.379471,1.891164,0.379586,0.000000,41.277450]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/17_7450.b3dm"}}}