{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950362,-0.311147,0.000000,0.000000,0.173533,-0.530037,0.830028,0.000000,-0.257719,0.787173,0.560303,0.000000,-1645497.057961,5025981.876754,3553501.800278,1],    "boundingVolume": {    "region": [1.887146,0.594693,1.887246,0.594810,0.000000,8.622843]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/4_1375490.b3dm"}}}