{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898101,-0.439788,0.000000,0.000000,0.284269,-0.580511,0.763019,0.000000,-0.334623,0.683341,0.648901,0.000000,-2137284.343324,4364596.182827,4116882.501825,1],    "boundingVolume": {    "region": [2.026093,0.706028,2.026225,0.706251,0.000000,8.212599]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1820232.b3dm"}}}