{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949056,-0.315108,0.000000,0.000000,0.176229,-0.530772,0.828990,0.000000,-0.260671,0.785099,0.561846,0.000000,-1664354.542701,5012767.511605,3563305.355120,1],    "boundingVolume": {    "region": [1.891317,0.596604,1.891418,0.596626,0.000000,9.660840]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/10_1338504.b3dm"}}}