{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950548,-0.310577,0.000000,0.000000,0.173715,-0.531670,0.828945,0.000000,-0.256909,0.786291,0.561912,0.000000,-1640333.821847,5020379.084845,3563725.277074,1],    "boundingVolume": {    "region": [1.886548,0.596646,1.886646,0.596744,0.000000,12.343590]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1394682.b3dm"}}}