{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951439,-0.307838,0.000000,0.000000,0.171081,-0.528760,0.831351,0.000000,-0.255389,0.789332,0.558329,0.000000,-1630607.502512,5039731.170701,3540954.428667,1],    "boundingVolume": {    "region": [1.883663,0.592326,1.883770,0.592414,0.000000,6.781119]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/46/51_1383131.b3dm"}}}