{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949282,-0.314425,0.000000,0.000000,0.175689,-0.530423,0.829328,0.000000,-0.260213,0.785609,0.561344,0.000000,-1661426.485746,5016015.827921,3560120.694543,1],    "boundingVolume": {    "region": [1.890579,0.595956,1.890716,0.596063,0.000000,8.723768]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/9_1360559.b3dm"}}}