{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950711,-0.310079,0.000000,0.000000,0.173220,-0.531097,0.829416,0.000000,-0.256643,0.786876,0.561213,0.000000,-1638635.395110,5024104.299218,3559283.957947,1],    "boundingVolume": {    "region": [1.886014,0.595793,1.886130,0.595908,0.000000,8.794188]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1425450.b3dm"}}}