{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950269,-0.311431,0.000000,0.000000,0.173924,-0.530695,0.829526,0.000000,-0.257797,0.786615,0.561050,0.000000,-1645999.085520,5022432.935066,3558251.845090,1],    "boundingVolume": {    "region": [1.887445,0.595596,1.887545,0.595713,0.000000,8.803672]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1428295.b3dm"}}}