{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949110,-0.314944,0.000000,0.000000,0.116068,-0.349781,0.929614,0.000000,-0.292507,0.881497,0.370679,0.000000,-1866510.439229,5624895.326636,2349493.584573,1],    "boundingVolume": {    "region": [1.891139,0.379682,1.891248,0.379797,0.000000,60.795093]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/19_75783.b3dm"}}}