{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950169,-0.311735,0.000000,0.000000,0.173868,-0.529952,0.830013,0.000000,-0.258201,0.786999,0.560326,0.000000,-1648575.550801,5024868.268362,3553648.819828,1],    "boundingVolume": {    "region": [1.887733,0.594714,1.887896,0.594845,0.000000,8.743291]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/8_1376785.b3dm"}}}