{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949074,-0.315052,0.000000,0.000000,0.176104,-0.530501,0.829190,0.000000,-0.260688,0.785306,0.561549,0.000000,-1664460.348470,5014082.451167,3561418.083506,1],    "boundingVolume": {    "region": [1.891239,0.596203,1.891376,0.596309,0.000000,8.649238]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1372931.b3dm"}}}