{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951958,-0.306228,0.000000,0.000000,0.169763,-0.527735,0.832272,0.000000,-0.254337,0.790646,0.556948,0.000000,-1623883.761352,5048094.581140,3532179.256833,1],    "boundingVolume": {    "region": [1.881971,0.590663,1.882079,0.590750,0.000000,7.715274]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/29/31_1321773.b3dm"}}}