{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950375,-0.311105,0.000000,0.000000,0.174040,-0.531663,0.828881,0.000000,-0.257325,0.786087,0.562007,0.000000,-1642993.864524,5019077.036323,3564329.793526,1],    "boundingVolume": {    "region": [1.887103,0.596761,1.887201,0.596859,0.000000,6.703646]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1400421.b3dm"}}}