{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950372,-0.311116,0.000000,0.000000,0.174013,-0.531559,0.828954,0.000000,-0.257357,0.786153,0.561899,0.000000,-1643195.414980,5019499.291970,3563646.799120,1],    "boundingVolume": {    "region": [1.887115,0.596631,1.887212,0.596729,0.000000,8.818804]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1399885.b3dm"}}}