{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950350,-0.311182,0.000000,0.000000,0.173677,-0.530409,0.829761,0.000000,-0.257665,0.786907,0.560701,0.000000,-1645153.000164,5024292.608630,3556032.001114,1],    "boundingVolume": {    "region": [1.887184,0.595174,1.887283,0.595291,0.000000,8.655827]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/8_1345577.b3dm"}}}