{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950202,-0.311636,0.000000,0.000000,0.174182,-0.531095,0.829216,0.000000,-0.257869,0.786263,0.561510,0.000000,-1646462.635338,5020194.082348,3561175.878379,1],    "boundingVolume": {    "region": [1.887641,0.596106,1.887779,0.596314,0.000000,8.813532]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1341950.b3dm"}}}