{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948809,-0.315849,0.000000,0.000000,0.176078,-0.528937,0.830194,0.000000,-0.261667,0.786046,0.560056,0.000000,-1670700.713011,5018781.178339,3551928.964342,1],    "boundingVolume": {    "region": [1.892100,0.594341,1.892196,0.594564,0.000000,8.523995]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1093301.b3dm"}}}