{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944275,-0.329157,0.000000,0.000000,0.183992,-0.527829,0.829183,0.000000,-0.272357,0.781327,0.561560,0.000000,-1738964.104111,4988681.477425,3561489.488665,1],    "boundingVolume": {    "region": [1.906150,0.596232,1.906265,0.596307,0.000000,8.815695]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/4_851721.b3dm"}}}