{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858249,-0.513233,0.000000,0.000000,0.262400,-0.438796,0.859421,0.000000,-0.440306,0.736297,0.513807,0.000000,-2810815.559509,4700356.404432,3258075.660627,1],    "boundingVolume": {    "region": [2.109662,0.539554,2.109826,0.539679,0.000000,11.831700]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/1_289472.b3dm"}}}