{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.899340,-0.437250,0.000000,0.000000,0.282961,-0.581997,0.762373,0.000000,-0.332408,0.683699,0.649662,0.000000,-2123142.121118,4366901.945578,4121719.555685,1],    "boundingVolume": {    "region": [2.023247,0.707085,2.023422,0.707194,0.000000,14.860059]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15_1800788.b3dm"}}}