{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949102,-0.314968,0.000000,0.000000,0.176065,-0.530543,0.829171,0.000000,-0.260612,0.785311,0.561576,0.000000,-1663979.421721,5014115.349443,3561595.300346,1],    "boundingVolume": {    "region": [1.891151,0.596237,1.891288,0.596343,0.000000,8.815213]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1447678.b3dm"}}}