{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950554,-0.310559,0.000000,0.000000,0.173358,-0.530611,0.829698,0.000000,-0.257129,0.787016,0.560794,0.000000,-1641733.616570,5024988.518880,3556624.930866,1],    "boundingVolume": {    "region": [1.886520,0.595288,1.886635,0.595402,0.000000,8.803719]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1450583.b3dm"}}}