{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950518,-0.310670,0.000000,0.000000,0.173878,-0.531991,0.828705,0.000000,-0.256910,0.786036,0.562268,0.000000,-1640345.124421,5018756.520119,3565989.500845,1],    "boundingVolume": {    "region": [1.886645,0.597076,1.886743,0.597175,0.000000,8.335390]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1326011.b3dm"}}}