{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950557,-0.310550,0.000000,0.000000,0.173694,-0.531657,0.828958,0.000000,-0.256890,0.786310,0.561893,0.000000,-1640213.565464,5020501.601185,3563608.814044,1],    "boundingVolume": {    "region": [1.886519,0.596623,1.886617,0.596722,0.000000,12.343590]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1394389.b3dm"}}}