{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950346,-0.311194,0.000000,0.000000,0.174055,-0.531542,0.828956,0.000000,-0.257422,0.786134,0.561896,0.000000,-1643612.072699,5019376.270942,3563628.056943,1],    "boundingVolume": {    "region": [1.887170,0.596584,1.887322,0.596769,0.000000,8.820846]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/4_1399852.b3dm"}}}