{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943183,-0.332273,0.000000,0.000000,0.186080,-0.528203,0.828478,0.000000,-0.274699,0.779755,0.562603,0.000000,-1753927.911326,4978661.174783,3568122.404496,1],    "boundingVolume": {    "region": [1.909506,0.597529,1.909511,0.597534,0.000000,7.840101]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7.b3dm"}}}