{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950719,-0.310054,0.000000,0.000000,0.173189,-0.531049,0.829453,0.000000,-0.256634,0.786918,0.561158,0.000000,-1638576.392291,5024370.912461,3558937.094365,1],    "boundingVolume": {    "region": [1.885988,0.595727,1.886104,0.595842,0.000000,7.498040]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1343624.b3dm"}}}