{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949138,-0.314861,0.000000,0.000000,0.116104,-0.349991,0.929530,0.000000,-0.292404,0.881442,0.370891,0.000000,-1865849.790578,5624548.734703,2350838.625094,1],    "boundingVolume": {    "region": [1.891052,0.379910,1.891160,0.380026,0.000000,72.367680]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/21_1283.b3dm"}}}