{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950892,-0.309523,0.000000,0.000000,0.172951,-0.531327,0.829325,0.000000,-0.256155,0.786939,0.561349,0.000000,-1635516.462885,5024504.755093,3560147.286673,1],    "boundingVolume": {    "region": [1.885415,0.595905,1.885560,0.596124,0.000000,8.818891]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1422596.b3dm"}}}