{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858189,-0.513335,0.000000,0.000000,0.262621,-0.439047,0.859225,0.000000,-0.440292,0.736076,0.514136,0.000000,-2810727.938124,4698951.023269,3260163.716720,1],    "boundingVolume": {    "region": [2.109780,0.539938,2.109944,0.540063,0.000000,96.260641]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/4_129620.b3dm"}}}