{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950678,-0.310180,0.000000,0.000000,0.173309,-0.531178,0.829345,0.000000,-0.256705,0.786781,0.561318,0.000000,-1639027.614093,5023499.205056,3559952.862579,1],    "boundingVolume": {    "region": [1.886121,0.595920,1.886236,0.596035,0.000000,8.762143]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/14_1426447.b3dm"}}}