{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.952264,-0.305276,0.000000,0.000000,0.169236,-0.527907,0.832270,0.000000,-0.253546,0.790899,0.556950,0.000000,-1618831.550198,5049708.128089,3532191.855814,1],    "boundingVolume": {    "region": [1.880971,0.590665,1.881078,0.590753,0.000000,8.419600]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/19/31_1462957.b3dm"}}}