{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898088,-0.439815,0.000000,0.000000,0.284308,-0.580548,0.762976,0.000000,-0.334624,0.683292,0.648952,0.000000,-2137293.814979,4364285.056245,4117205.232196,1],    "boundingVolume": {    "region": [2.026123,0.706095,2.026255,0.706318,0.000000,26.925476]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1820923.b3dm"}}}