{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898068,-0.439856,0.000000,0.000000,0.284342,-0.580551,0.762962,0.000000,-0.334649,0.683264,0.648969,0.000000,-2137450.549195,4364105.163996,4117313.817159,1],    "boundingVolume": {    "region": [2.026168,0.706118,2.026301,0.706340,0.000000,35.525152]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1821136.b3dm"}}}