{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949036,-0.315168,0.000000,0.000000,0.175951,-0.529825,0.829655,0.000000,-0.260931,0.785718,0.560859,0.000000,-1666008.577467,5016700.963686,3557033.462906,1],    "boundingVolume": {    "region": [1.891361,0.595369,1.891498,0.595476,0.000000,8.811778]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/3_1072316.b3dm"}}}