{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950719,-0.310055,0.000000,0.000000,0.173191,-0.531053,0.829450,0.000000,-0.256634,0.786915,0.561163,0.000000,-1638575.725673,5024350.936505,3558965.411558,1],    "boundingVolume": {    "region": [1.885989,0.595733,1.886105,0.595847,0.000000,7.305464]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1343586.b3dm"}}}