{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949341,-0.314249,0.000000,0.000000,0.175666,-0.530683,0.829167,0.000000,-0.260016,0.785504,0.561583,0.000000,-1660172.184765,5015346.336988,3561638.485400,1],    "boundingVolume": {    "region": [1.890413,0.596257,1.890511,0.596339,0.000000,8.803256]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1447836.b3dm"}}}