{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950520,-0.310665,0.000000,0.000000,0.173791,-0.531735,0.828887,0.000000,-0.256963,0.786212,0.561997,0.000000,-1640680.139267,5019875.795278,3564271.105372,1],    "boundingVolume": {    "region": [1.886640,0.596749,1.886738,0.596848,0.000000,8.804403]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1395614.b3dm"}}}