{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950882,-0.309552,0.000000,0.000000,0.172906,-0.531131,0.829460,0.000000,-0.256221,0.787060,0.561148,0.000000,-1635939.376673,5025275.937518,3558872.867866,1],    "boundingVolume": {    "region": [1.885446,0.595662,1.885591,0.595882,0.000000,8.752572]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1340232.b3dm"}}}