{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949092,-0.315000,0.000000,0.000000,0.176082,-0.530534,0.829173,0.000000,-0.260639,0.785304,0.561574,0.000000,-1664149.249921,5014071.724558,3561577.488548,1],    "boundingVolume": {    "region": [1.891184,0.596233,1.891321,0.596340,0.000000,8.293221]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1372861.b3dm"}}}