{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948940,-0.315456,0.000000,0.000000,0.176351,-0.530490,0.829145,0.000000,-0.261008,0.785151,0.561616,0.000000,-1666502.385956,5013096.459544,3561848.239129,1],    "boundingVolume": {    "region": [1.891665,0.596285,1.891802,0.596391,0.000000,7.076046]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/12_1056521.b3dm"}}}