{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950698,-0.310117,0.000000,0.000000,0.173347,-0.531415,0.829186,0.000000,-0.256603,0.786645,0.561555,0.000000,-1638379.015446,5022636.259361,3561458.564811,1],    "boundingVolume": {    "region": [1.886063,0.596214,1.886161,0.596313,0.000000,8.773119]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/2_1427546.b3dm"}}}