{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950505,-0.310709,0.000000,0.000000,0.173718,-0.531430,0.829099,0.000000,-0.257066,0.786402,0.561684,0.000000,-1641334.898529,5021084.205680,3562280.392533,1],    "boundingVolume": {    "region": [1.886687,0.596371,1.886784,0.596470,0.000000,8.782471]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1388906.b3dm"}}}