{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898105,-0.439780,0.000000,0.000000,0.284298,-0.580584,0.762953,0.000000,-0.334587,0.683284,0.648979,0.000000,-2137059.230964,4364235.165018,4117378.713191,1],    "boundingVolume": {    "region": [2.026084,0.706131,2.026216,0.706354,0.000000,15.709792]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1821212.b3dm"}}}