{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897928,-0.440143,0.000000,0.000000,0.281383,-0.574044,0.768958,0.000000,-0.337520,0.688568,0.641836,0.000000,-2155724.825864,4397850.766929,4071933.876117,1],    "boundingVolume": {    "region": [2.026508,0.696862,2.026601,0.696919,0.000000,38.126551]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/3_750917.b3dm"}}}