{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950380,-0.311092,0.000000,0.000000,0.173990,-0.531536,0.828973,0.000000,-0.257343,0.786178,0.561870,0.000000,-1643105.484390,5019659.645760,3563463.628122,1],    "boundingVolume": {    "region": [1.887089,0.596596,1.887187,0.596695,0.000000,8.818831]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1399581.b3dm"}}}