{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948969,-0.315369,0.000000,0.000000,0.175828,-0.529079,0.830156,0.000000,-0.261257,0.786142,0.560112,0.000000,-1668086.812562,5019394.900236,3552287.825559,1],    "boundingVolume": {    "region": [1.891595,0.594426,1.891689,0.594616,0.000000,8.804649]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/26_1092914.b3dm"}}}