{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897925,-0.440148,0.000000,0.000000,0.282561,-0.576439,0.766732,0.000000,-0.336539,0.686557,0.644500,0.000000,-2149481.846451,4385056.482754,4088882.688231,1],    "boundingVolume": {    "region": [2.026496,0.700335,2.026623,0.700404,0.000000,33.682253]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/3_852490.b3dm"}}}