{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950503,-0.310714,0.000000,0.000000,0.173778,-0.531604,0.828974,0.000000,-0.257031,0.786282,0.561869,0.000000,-1641113.665680,5020319.526567,3563451.973625,1],    "boundingVolume": {    "region": [1.886692,0.596594,1.886789,0.596692,0.000000,10.947174]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1328501.b3dm"}}}