{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949063,-0.315086,0.000000,0.000000,0.176215,-0.530775,0.828991,0.000000,-0.260652,0.785106,0.561844,0.000000,-1664235.515800,5012812.426964,3563297.813165,1],    "boundingVolume": {    "region": [1.891292,0.596603,1.891394,0.596624,0.000000,9.660840]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/10_1420455.b3dm"}}}