{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949964,-0.312359,0.000000,0.000000,0.174683,-0.531256,0.829007,0.000000,-0.258402,0.785867,0.561820,0.000000,-1649865.475045,5017669.404588,3563145.319776,1],    "boundingVolume": {    "region": [1.888402,0.596480,1.888540,0.596689,0.000000,8.733910]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/4_1334844.b3dm"}}}