{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898069,-0.439854,0.000000,0.000000,0.284334,-0.580537,0.762975,0.000000,-0.334653,0.683277,0.648953,0.000000,-2137479.612078,4364187.888921,4117211.731886,1],    "boundingVolume": {    "region": [2.026166,0.706096,2.026298,0.706319,0.000000,26.925476]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1820932.b3dm"}}}