{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.899352,-0.437225,0.000000,0.000000,0.282880,-0.581872,0.762498,0.000000,-0.332444,0.683822,0.649515,0.000000,-2123371.438856,4367679.892612,4120783.330920,1],    "boundingVolume": {    "region": [2.023220,0.706891,2.023394,0.707000,0.000000,14.481116]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/13_1800598.b3dm"}}}