{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950476,-0.310799,0.000000,0.000000,0.173459,-0.530468,0.829768,0.000000,-0.257350,0.787019,0.560689,0.000000,-1643142.187106,5025003.264994,3555958.054887,1],    "boundingVolume": {    "region": [1.886780,0.595160,1.886880,0.595277,0.000000,8.787647]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/8_1450196.b3dm"}}}