{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858411,-0.512962,0.000000,0.000000,0.262657,-0.439540,0.858962,0.000000,-0.439836,0.736039,0.514578,0.000000,-2807824.222877,4698724.646692,3262971.972098,1],    "boundingVolume": {    "region": [2.109346,0.540453,2.109510,0.540578,0.000000,44.774900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/8_265833.b3dm"}}}