{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949064,-0.315082,0.000000,0.000000,0.176125,-0.530510,0.829179,0.000000,-0.260709,0.785287,0.561564,0.000000,-1664597.542502,5013964.978299,3561518.669545,1],    "boundingVolume": {    "region": [1.891271,0.596222,1.891408,0.596329,0.000000,8.649238]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1372883.b3dm"}}}