{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950251,-0.311486,0.000000,0.000000,0.173955,-0.530685,0.829526,0.000000,-0.257843,0.786600,0.561050,0.000000,-1646290.474203,5022338.439245,3558250.428795,1],    "boundingVolume": {    "region": [1.887503,0.595596,1.887603,0.595712,0.000000,8.803672]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1428296.b3dm"}}}