{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898107,-0.439777,0.000000,0.000000,0.284281,-0.580554,0.762982,0.000000,-0.334598,0.683312,0.648945,0.000000,-2137128.481975,4364411.210290,4117157.649084,1],    "boundingVolume": {    "region": [2.026081,0.706085,2.026213,0.706308,0.000000,10.642843]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1820827.b3dm"}}}