{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950648,-0.310270,0.000000,0.000000,0.173434,-0.531391,0.829183,0.000000,-0.256729,0.786601,0.561560,0.000000,-1639183.465153,5022353.143515,3561487.467741,1],    "boundingVolume": {    "region": [1.886225,0.596220,1.886323,0.596319,0.000000,8.798016]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/2_1427576.b3dm"}}}