{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948964,-0.315384,0.000000,0.000000,0.176012,-0.529604,0.829783,0.000000,-0.261151,0.785781,0.560668,0.000000,-1667413.594737,5017100.422902,3555819.684828,1],    "boundingVolume": {    "region": [1.891611,0.595097,1.891705,0.595287,0.000000,8.584053]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/29_1073768.b3dm"}}}