{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898102,-0.439788,0.000000,0.000000,0.284298,-0.580571,0.762962,0.000000,-0.334598,0.683290,0.648968,0.000000,-2137124.791804,4364271.538018,4117306.615739,1],    "boundingVolume": {    "region": [2.026093,0.706116,2.026225,0.706339,0.000000,15.709792]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1821118.b3dm"}}}