{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950339,-0.311215,0.000000,0.000000,0.173546,-0.529948,0.830083,0.000000,-0.257793,0.787207,0.560222,0.000000,-1645968.764994,5026195.387146,3552984.795100,1],    "boundingVolume": {    "region": [1.887218,0.594595,1.887318,0.594712,0.000000,8.209771]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/3_1375641.b3dm"}}}