{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949086,-0.315018,0.000000,0.000000,0.176091,-0.530526,0.829177,0.000000,-0.260656,0.785302,0.561569,0.000000,-1664255.307995,5014059.356335,3561545.558568,1],    "boundingVolume": {    "region": [1.891204,0.596227,1.891341,0.596334,0.000000,8.793916]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1447446.b3dm"}}}