{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943924,-0.330163,0.000000,0.000000,0.184547,-0.527614,0.829196,0.000000,-0.273193,0.781050,0.561540,0.000000,-1744304.832275,4986908.292437,3561361.940922,1],    "boundingVolume": {    "region": [1.907225,0.596188,1.907320,0.596303,0.000000,8.369838]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1268914.b3dm"}}}