{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950210,-0.311611,0.000000,0.000000,0.174202,-0.531202,0.829143,0.000000,-0.257826,0.786200,0.561619,0.000000,-1646185.950184,5019792.929113,3561864.564541,1],    "boundingVolume": {    "region": [1.887615,0.596237,1.887753,0.596445,0.000000,8.813532]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1397242.b3dm"}}}