{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898440,-0.439096,0.000000,0.000000,0.283959,-0.581012,0.762753,0.000000,-0.333979,0.683358,0.649214,0.000000,-2133174.240694,4364715.773432,4118873.523409,1],    "boundingVolume": {    "region": [2.025338,0.706514,2.025439,0.706589,0.000000,9.085525]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1818976.b3dm"}}}