{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950167,-0.311740,0.000000,0.000000,0.173878,-0.529972,0.829997,0.000000,-0.258201,0.786983,0.560349,0.000000,-1648572.490458,5024766.819428,3553792.714439,1],    "boundingVolume": {    "region": [1.887738,0.594741,1.887902,0.594872,0.000000,8.813611]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1459880.b3dm"}}}