{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897998,-0.440000,0.000000,0.000000,0.284414,-0.580461,0.763003,0.000000,-0.334777,0.683247,0.648920,0.000000,-2138267.703905,4364000.900371,4117002.121355,1],    "boundingVolume": {    "region": [2.026329,0.706053,2.026461,0.706276,0.000000,9.329967]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1820449.b3dm"}}}