{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950480,-0.310786,0.000000,0.000000,0.173447,-0.530456,0.829778,0.000000,-0.257342,0.787032,0.560675,0.000000,-1643091.287063,5025087.629570,3555862.995406,1],    "boundingVolume": {    "region": [1.886766,0.595142,1.886866,0.595259,0.000000,8.787647]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/8_1450049.b3dm"}}}