{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950501,-0.310721,0.000000,0.000000,0.173722,-0.531420,0.829104,0.000000,-0.257077,0.786404,0.561676,0.000000,-1641405.978645,5021097.569420,3562229.149950,1],    "boundingVolume": {    "region": [1.886699,0.596361,1.886796,0.596460,0.000000,8.782471]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1388837.b3dm"}}}