{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950204,-0.311627,0.000000,0.000000,0.174207,-0.531186,0.829152,0.000000,-0.257842,0.786204,0.561605,0.000000,-1646290.917445,5019819.983515,3561778.500977,1],    "boundingVolume": {    "region": [1.887632,0.596220,1.887770,0.596429,0.000000,8.813532]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1397003.b3dm"}}}