{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948805,-0.315862,0.000000,0.000000,0.176084,-0.528933,0.830195,0.000000,-0.261678,0.786043,0.560054,0.000000,-1670771.666491,5018763.683579,3551920.367164,1],    "boundingVolume": {    "region": [1.892113,0.594340,1.892209,0.594563,0.000000,8.773131]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1212855.b3dm"}}}