{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898074,-0.439845,0.000000,0.000000,0.284328,-0.580540,0.762975,0.000000,-0.334646,0.683280,0.648953,0.000000,-2137434.564923,4364210.909257,4117210.723678,1],    "boundingVolume": {    "region": [2.026156,0.706096,2.026288,0.706319,0.000000,26.925476]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1820938.b3dm"}}}