{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950385,-0.311077,0.000000,0.000000,0.173972,-0.531511,0.828993,0.000000,-0.257337,0.786201,0.561841,0.000000,-1643067.254808,5019806.818444,3563275.203084,1],    "boundingVolume": {    "region": [1.887073,0.596560,1.887171,0.596659,0.000000,8.795997]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1392642.b3dm"}}}