{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948739,-0.316060,0.000000,0.000000,0.176500,-0.529812,0.829546,0.000000,-0.261635,0.785369,0.561020,0.000000,-1670507.591184,5014474.439652,3558055.880709,1],    "boundingVolume": {    "region": [1.892302,0.595564,1.892439,0.595670,0.000000,8.102998]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/5_1070709.b3dm"}}}