{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898126,-0.439738,0.000000,0.000000,0.284276,-0.580610,0.762941,0.000000,-0.334550,0.683289,0.648993,0.000000,-2136819.426615,4364268.246792,4117467.508086,1],    "boundingVolume": {    "region": [2.026037,0.706149,2.026169,0.706372,0.000000,15.709792]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1821290.b3dm"}}}