{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944346,-0.328953,0.000000,0.000000,0.184076,-0.528437,0.828777,0.000000,-0.272053,0.781000,0.562162,0.000000,-1737032.569751,4986603.475376,3565314.338990,1],    "boundingVolume": {    "region": [1.905934,0.596960,1.906049,0.597035,0.000000,8.637887]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/15_128490.b3dm"}}}