{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943271,-0.332023,0.000000,0.000000,0.186255,-0.529149,0.827835,0.000000,-0.274277,0.779216,0.563555,0.000000,-1751237.835269,4975240.736057,3574168.759792,1],    "boundingVolume": {    "region": [1.909171,0.598634,1.909316,0.598731,0.000000,7.110776]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_544989.b3dm"}}}