{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949293,-0.314394,0.000000,0.000000,0.175758,-0.530690,0.829142,0.000000,-0.260128,0.785441,0.561620,0.000000,-1660886.762548,5014945.027031,3561868.855215,1],    "boundingVolume": {    "region": [1.890565,0.596301,1.890664,0.596383,0.000000,8.504053]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1338315.b3dm"}}}