{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949519,-0.313710,0.000000,0.000000,0.173832,-0.526144,0.832439,0.000000,-0.260604,0.788781,0.556696,0.000000,-1663896.551222,5036178.886461,3530577.067085,1],    "boundingVolume": {    "region": [1.889835,0.590341,1.889954,0.590465,0.000000,8.779115]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/23/15_1338749.b3dm"}}}