{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950520,-0.310664,0.000000,0.000000,0.173749,-0.531609,0.828977,0.000000,-0.256990,0.786298,0.561865,0.000000,-1640854.573025,5020422.763610,3563426.016129,1],    "boundingVolume": {    "region": [1.886639,0.596589,1.886737,0.596687,0.000000,15.223519]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1393522.b3dm"}}}