{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950633,-0.310319,0.000000,0.000000,0.173458,-0.531372,0.829190,0.000000,-0.256771,0.786595,0.561549,0.000000,-1639453.273362,5022312.068571,3561421.643629,1],    "boundingVolume": {    "region": [1.886276,0.596207,1.886374,0.596306,0.000000,8.772539]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/2_1427508.b3dm"}}}