{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949332,-0.314276,0.000000,0.000000,0.175691,-0.530707,0.829146,0.000000,-0.260032,0.785476,0.561614,0.000000,-1660273.393421,5015172.326336,3561835.008131,1],    "boundingVolume": {    "region": [1.890441,0.596295,1.890540,0.596376,0.000000,8.777598]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1416063.b3dm"}}}