{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943166,-0.332321,0.000000,0.000000,0.186163,-0.528352,0.828364,0.000000,-0.274701,0.779633,0.562772,0.000000,-1753938.306893,4977884.022618,3569194.197931,1],    "boundingVolume": {    "region": [1.909497,0.597696,1.909622,0.597775,0.000000,8.719412]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1286634.b3dm"}}}