{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898077,-0.439838,0.000000,0.000000,0.284326,-0.580548,0.762970,0.000000,-0.334639,0.683278,0.648959,0.000000,-2137388.110012,4364195.577252,4117250.821650,1],    "boundingVolume": {    "region": [2.026149,0.706105,2.026281,0.706327,0.000000,26.925476]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1821012.b3dm"}}}