{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949332,-0.314274,0.000000,0.000000,0.175529,-0.530224,0.829489,0.000000,-0.260139,0.785805,0.561105,0.000000,-1660950.665837,5017259.582491,3558600.038870,1],    "boundingVolume": {    "region": [1.890419,0.595667,1.890557,0.595774,0.000000,8.746050]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/6_1365227.b3dm"}}}