{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949058,-0.315101,0.000000,0.000000,0.175879,-0.529734,0.829728,0.000000,-0.260899,0.785806,0.560750,0.000000,-1665804.052397,5017263.674983,3556340.184283,1],    "boundingVolume": {    "region": [1.891291,0.595238,1.891428,0.595344,0.000000,6.685805]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/2_1375017.b3dm"}}}