{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950544,-0.310590,0.000000,0.000000,0.173727,-0.531684,0.828933,0.000000,-0.256915,0.786276,0.561929,0.000000,-1640374.430706,5020285.486663,3563837.680528,1],    "boundingVolume": {    "region": [1.886561,0.596667,1.886658,0.596766,0.000000,14.800804]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1394873.b3dm"}}}