{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950387,-0.311070,0.000000,0.000000,0.173966,-0.531504,0.828999,0.000000,-0.257333,0.786209,0.561832,0.000000,-1643043.957958,5019854.497856,3563219.153492,1],    "boundingVolume": {    "region": [1.887066,0.596549,1.887164,0.596648,0.000000,8.742048]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1329237.b3dm"}}}