{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950499,-0.310727,0.000000,0.000000,0.173732,-0.531439,0.829090,0.000000,-0.257077,0.786389,0.561697,0.000000,-1641408.757146,5021000.297798,3562364.064566,1],    "boundingVolume": {    "region": [1.886705,0.596387,1.886802,0.596485,0.000000,8.782471]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1389036.b3dm"}}}