{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950389,-0.311063,0.000000,0.000000,0.173966,-0.531519,0.828989,0.000000,-0.257324,0.786202,0.561846,0.000000,-1642985.178417,5019808.934128,3563309.834445,1],    "boundingVolume": {    "region": [1.887059,0.596567,1.887156,0.596665,0.000000,8.795997]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1392868.b3dm"}}}