{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949102,-0.314970,0.000000,0.000000,0.176068,-0.530547,0.829168,0.000000,-0.260613,0.785307,0.561581,0.000000,-1663980.953932,5014092.566606,3561626.448687,1],    "boundingVolume": {    "region": [1.891152,0.596243,1.891290,0.596349,0.000000,8.815213]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1447785.b3dm"}}}