{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950145,-0.311808,0.000000,0.000000,0.173932,-0.530008,0.829963,0.000000,-0.258246,0.786932,0.560399,0.000000,-1648864.426269,5024441.900115,3554114.486786,1],    "boundingVolume": {    "region": [1.887810,0.594802,1.887973,0.594934,0.000000,8.809282]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1451879.b3dm"}}}