{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898128,-0.439733,0.000000,0.000000,0.284269,-0.580603,0.762949,0.000000,-0.334550,0.683298,0.648984,0.000000,-2136820.589819,4364325.257090,4117406.884660,1],    "boundingVolume": {    "region": [2.026032,0.706137,2.026164,0.706359,0.000000,15.709792]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1821239.b3dm"}}}