{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897861,-0.440278,0.000000,0.000000,0.284602,-0.580390,0.762986,0.000000,-0.334981,0.683129,0.648940,0.000000,-2139574.626890,4363241.955980,4117126.696573,1],    "boundingVolume": {    "region": [2.026639,0.706079,2.026771,0.706302,0.000000,9.886462]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1820743.b3dm"}}}