{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949855,-0.312691,0.000000,0.000000,0.174758,-0.530857,0.829247,0.000000,-0.258752,0.786006,0.561464,0.000000,-1652102.276282,5018549.778398,3560883.555026,1],    "boundingVolume": {    "region": [1.888736,0.596052,1.888907,0.596257,0.000000,21.806790]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/2_1435015.b3dm"}}}