{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950146,-0.311806,0.000000,0.000000,0.173924,-0.529988,0.829978,0.000000,-0.258249,0.786946,0.560378,0.000000,-1648882.836231,5024533.974330,3553976.705415,1],    "boundingVolume": {    "region": [1.887807,0.594776,1.887971,0.594907,0.000000,8.809282]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1459967.b3dm"}}}