{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950745,-0.309974,0.000000,0.000000,0.173427,-0.531932,0.828837,0.000000,-0.256376,0.786350,0.562072,0.000000,-1636932.197419,5020761.965327,3564742.968220,1],    "boundingVolume": {    "region": [1.885879,0.596804,1.886045,0.596973,0.000000,8.796485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_1387848.b3dm"}}}