{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950536,-0.310613,0.000000,0.000000,0.173730,-0.531648,0.828956,0.000000,-0.256942,0.786291,0.561896,0.000000,-1640544.835305,5020381.642199,3563625.214525,1],    "boundingVolume": {    "region": [1.886586,0.596627,1.886683,0.596725,0.000000,14.464368]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1394460.b3dm"}}}