{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950356,-0.311163,0.000000,0.000000,0.174037,-0.531546,0.828957,0.000000,-0.257397,0.786144,0.561894,0.000000,-1643452.935936,5019439.330487,3563612.733451,1],    "boundingVolume": {    "region": [1.887137,0.596581,1.887289,0.596766,0.000000,8.820846]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/4_1399817.b3dm"}}}