{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949330,-0.314281,0.000000,0.000000,0.175700,-0.530727,0.829131,0.000000,-0.260031,0.785461,0.561636,0.000000,-1660268.551167,5015073.105473,3561976.016724,1],    "boundingVolume": {    "region": [1.890446,0.596321,1.890545,0.596403,0.000000,8.803256]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1416825.b3dm"}}}