{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950464,-0.310834,0.000000,0.000000,0.173838,-0.531559,0.828990,0.000000,-0.257135,0.786264,0.561845,0.000000,-1641780.795846,5020208.228351,3563302.474361,1],    "boundingVolume": {    "region": [1.886818,0.596565,1.886916,0.596664,0.000000,15.117020]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1392832.b3dm"}}}