{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950544,-0.310589,0.000000,0.000000,0.173859,-0.532088,0.828647,0.000000,-0.256825,0.786002,0.562354,0.000000,-1639801.576960,5018542.568105,3566536.867075,1],    "boundingVolume": {    "region": [1.886560,0.597180,1.886658,0.597279,0.000000,13.985162]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_1384890.b3dm"}}}