{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898247,-0.439490,0.000000,0.000000,0.284295,-0.581054,0.762595,0.000000,-0.334209,0.683069,0.649400,0.000000,-2134644.716534,4362872.274549,4120056.671964,1],    "boundingVolume": {    "region": [2.025777,0.706758,2.025878,0.706833,0.000000,8.867708]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/9_1823716.b3dm"}}}