{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948954,-0.315415,0.000000,0.000000,0.175881,-0.529155,0.830097,0.000000,-0.261276,0.786073,0.560200,0.000000,-1668210.488373,5018954.069469,3552848.790419,1],    "boundingVolume": {    "region": [1.891643,0.594532,1.891738,0.594723,0.000000,8.725880]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/26_1092571.b3dm"}}}