{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950165,-0.311748,0.000000,0.000000,0.173877,-0.529952,0.830010,0.000000,-0.258212,0.786993,0.560329,0.000000,-1648642.627107,5024831.293026,3553669.843059,1],    "boundingVolume": {    "region": [1.887747,0.594718,1.887911,0.594849,0.000000,8.743291]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/8_1459768.b3dm"}}}