{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949402,-0.314063,0.000000,0.000000,0.175350,-0.530079,0.829619,0.000000,-0.260005,0.785987,0.560911,0.000000,-1660096.473173,5018422.646561,3557366.730654,1],    "boundingVolume": {    "region": [1.890185,0.595353,1.890347,0.595619,0.000000,8.820135]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/14_1463019.b3dm"}}}