{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.892912,-0.450231,0.000000,0.000000,0.290508,-0.576144,0.763979,0.000000,-0.343003,0.680253,0.647769,0.000000,-2190798.147876,4344853.858697,4109678.040323,1],    "boundingVolume": {    "region": [2.037769,0.704618,2.037873,0.704687,0.000000,32.076719]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/15_1972209.b3dm"}}}