{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950798,-0.309813,0.000000,0.000000,0.173198,-0.531533,0.829141,0.000000,-0.256338,0.786685,0.561621,0.000000,-1636685.100315,5022887.830798,3561879.756832,1],    "boundingVolume": {    "region": [1.885720,0.596234,1.885866,0.596454,0.000000,8.489277]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/14/15_1324950.b3dm"}}}