{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898118,-0.439754,0.000000,0.000000,0.284358,-0.580749,0.762805,0.000000,-0.334502,0.683160,0.649154,0.000000,-2136514.900644,4363446.818104,4118489.105482,1],    "boundingVolume": {    "region": [2.026055,0.706360,2.026187,0.706583,0.000000,15.181416]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1821873.b3dm"}}}