{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949108,-0.314951,0.000000,0.000000,0.175611,-0.529204,0.830123,0.000000,-0.260900,0.786225,0.560162,0.000000,-1665809.092174,5019923.957136,3552606.906021,1],    "boundingVolume": {    "region": [1.891154,0.594486,1.891249,0.594677,0.000000,8.787819]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/26_1380991.b3dm"}}}