{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898804,-0.438350,0.000000,0.000000,0.283103,-0.580480,0.763476,0.000000,-0.333730,0.684288,0.648363,0.000000,-2131577.664303,4370637.755766,4113453.320152,1],    "boundingVolume": {    "region": [2.024476,0.705372,2.024641,0.705491,0.000000,7.445744]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1827687.b3dm"}}}