{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950641,-0.310291,0.000000,0.000000,0.173444,-0.531381,0.829187,0.000000,-0.256748,0.786600,0.561553,0.000000,-1639303.755595,5022344.446743,3561444.654057,1],    "boundingVolume": {    "region": [1.886247,0.596212,1.886345,0.596311,0.000000,8.772539]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/2_1427531.b3dm"}}}