{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949117,-0.314925,0.000000,0.000000,0.175962,-0.530311,0.829342,0.000000,-0.260631,0.785486,0.561323,0.000000,-1664095.726770,5015227.393259,3559985.701798,1],    "boundingVolume": {    "region": [1.891105,0.595931,1.891243,0.596037,0.000000,17.644930]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1444970.b3dm"}}}