{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950637,-0.310305,0.000000,0.000000,0.173531,-0.531622,0.829015,0.000000,-0.256705,0.786430,0.561809,0.000000,-1639034.941419,5021268.648363,3563073.947995,1],    "boundingVolume": {    "region": [1.886262,0.596522,1.886360,0.596620,0.000000,11.649337]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/6_1391356.b3dm"}}}