{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950564,-0.310529,0.000000,0.000000,0.173829,-0.532109,0.828640,0.000000,-0.256773,0.786011,0.562364,0.000000,-1639472.009936,5018602.988809,3566602.912881,1],    "boundingVolume": {    "region": [1.886497,0.597193,1.886595,0.597292,0.000000,13.985162]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_1384962.b3dm"}}}