{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949015,-0.315232,0.000000,0.000000,0.175850,-0.529403,0.829946,0.000000,-0.261077,0.785978,0.560426,0.000000,-1666935.129692,5018355.626223,3554282.783990,1],    "boundingVolume": {    "region": [1.891450,0.594805,1.891545,0.594995,0.000000,19.173720]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/19/28_1177294.b3dm"}}}