{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948755,-0.316012,0.000000,0.000000,0.176175,-0.528927,0.830180,0.000000,-0.261797,0.785987,0.560077,0.000000,-1671535.604014,5018406.513623,3552064.617942,1],    "boundingVolume": {    "region": [1.892272,0.594367,1.892368,0.594590,0.000000,8.645811]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1212914.b3dm"}}}