{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949687,-0.313202,0.000000,0.000000,0.174757,-0.529896,0.829862,0.000000,-0.259369,0.786455,0.560550,0.000000,-1656032.912451,5021399.524059,3555074.668293,1],    "boundingVolume": {    "region": [1.889278,0.594918,1.889440,0.595183,0.000000,8.811738]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_1357421.b3dm"}}}