{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949883,-0.312606,0.000000,0.000000,0.174468,-0.530135,0.829770,0.000000,-0.258847,0.786529,0.560688,0.000000,-1652699.806983,5021876.212717,3555946.422271,1],    "boundingVolume": {    "region": [1.888650,0.595150,1.888814,0.595282,0.000000,8.808103]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1356737.b3dm"}}}