{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950277,-0.311405,0.000000,0.000000,0.173776,-0.530291,0.829815,0.000000,-0.257866,0.786899,0.560620,0.000000,-1646440.637597,5024240.185001,3555513.583320,1],    "boundingVolume": {    "region": [1.887418,0.595075,1.887518,0.595192,0.000000,8.758932]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1453527.b3dm"}}}