{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950765,-0.309911,0.000000,0.000000,0.173345,-0.531800,0.828939,0.000000,-0.256356,0.786465,0.561921,0.000000,-1636803.663108,5021489.906891,3563782.985043,1],    "boundingVolume": {    "region": [1.885813,0.596621,1.885979,0.596790,0.000000,8.777975]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1386932.b3dm"}}}