{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950062,-0.312062,0.000000,0.000000,0.174016,-0.529785,0.830088,0.000000,-0.258496,0.786982,0.560214,0.000000,-1650457.839930,5024759.190664,3552934.086388,1],    "boundingVolume": {    "region": [1.888077,0.594578,1.888241,0.594709,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1458940.b3dm"}}}