{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944268,-0.329178,0.000000,0.000000,0.183946,-0.527661,0.829300,0.000000,-0.272413,0.781433,0.561386,0.000000,-1739320.501463,4989351.552168,3560384.074232,1],    "boundingVolume": {    "region": [1.906172,0.596022,1.906286,0.596097,0.000000,8.797946]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/1_851331.b3dm"}}}