{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949261,-0.314489,0.000000,0.000000,0.175874,-0.530861,0.829008,0.000000,-0.260164,0.785286,0.561818,0.000000,-1661119.392118,5013964.935646,3563131.426962,1],    "boundingVolume": {    "region": [1.890664,0.596571,1.890765,0.596593,0.000000,12.158454]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/8_1418210.b3dm"}}}