{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948945,-0.315442,0.000000,0.000000,0.175961,-0.529346,0.829958,0.000000,-0.261254,0.785933,0.560407,0.000000,-1668069.259961,5018063.139158,3554164.454645,1],    "boundingVolume": {    "region": [1.891671,0.594782,1.891766,0.594973,0.000000,16.025598]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/28_1177462.b3dm"}}}