{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944025,-0.329873,0.000000,0.000000,0.184401,-0.527717,0.829163,0.000000,-0.272942,0.781102,0.561589,0.000000,-1742704.238671,4987243.037374,3561674.655262,1],    "boundingVolume": {    "region": [1.906918,0.596247,1.907013,0.596362,0.000000,8.741555]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1266420.b3dm"}}}