{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950108,-0.311921,0.000000,0.000000,0.173906,-0.529717,0.830155,0.000000,-0.258400,0.787084,0.560115,0.000000,-1649841.951391,5025409.726256,3552304.239103,1],    "boundingVolume": {    "region": [1.887928,0.594459,1.888092,0.594590,0.000000,8.766006]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1458277.b3dm"}}}