{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950503,-0.310715,0.000000,0.000000,0.173723,-0.531433,0.829095,0.000000,-0.257069,0.786397,0.561690,0.000000,-1641358.447267,5021052.449263,3562314.076083,1],    "boundingVolume": {    "region": [1.886693,0.596377,1.886790,0.596476,0.000000,8.782471]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1388942.b3dm"}}}