{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898103,-0.439786,0.000000,0.000000,0.284275,-0.580528,0.763004,0.000000,-0.334614,0.683328,0.648919,0.000000,-2137231.377135,4364517.113052,4116993.078876,1],    "boundingVolume": {    "region": [2.026090,0.706051,2.026223,0.706274,0.000000,10.642843]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1820419.b3dm"}}}