{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852865,-0.522132,0.000000,0.000000,0.269386,-0.440023,0.856627,0.000000,-0.446469,0.729276,0.518480,0.000000,-2850208.788345,4655612.438241,3287759.814980,1],    "boundingVolume": {    "region": [2.120056,0.544988,2.120234,0.545158,0.000000,37.546766]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/1/0/0_7891.b3dm"}}}