{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948960,-0.315396,0.000000,0.000000,0.175845,-0.529081,0.830152,0.000000,-0.261278,0.786130,0.560119,0.000000,-1668218.305135,5019320.772120,3552330.531149,1],    "boundingVolume": {    "region": [1.891623,0.594434,1.891717,0.594624,0.000000,8.804649]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/26_1092874.b3dm"}}}