{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949410,-0.314040,0.000000,0.000000,0.175414,-0.530314,0.829456,0.000000,-0.259935,0.785837,0.561155,0.000000,-1659649.487402,5017466.004572,3558913.947164,1],    "boundingVolume": {    "region": [1.890193,0.595739,1.890292,0.595821,0.000000,8.783543]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1363832.b3dm"}}}