{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950515,-0.310678,0.000000,0.000000,0.173260,-0.530088,0.830053,0.000000,-0.257338,0.787324,0.560266,0.000000,-1643065.379083,5026943.256122,3553268.673131,1],    "boundingVolume": {    "region": [1.886611,0.594634,1.886793,0.594780,0.000000,8.812569]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/12_1457957.b3dm"}}}