{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950736,-0.310003,0.000000,0.000000,0.173108,-0.530898,0.829566,0.000000,-0.256627,0.787041,0.560990,0.000000,-1638531.955866,5025148.960961,3557866.104754,1],    "boundingVolume": {    "region": [1.885935,0.595524,1.886050,0.595638,0.000000,8.812964]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/11_1448989.b3dm"}}}