{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950328,-0.311249,0.000000,0.000000,0.174017,-0.531322,0.829105,0.000000,-0.257514,0.786262,0.561675,0.000000,-1644199.337876,5020189.083549,3562221.410786,1],    "boundingVolume": {    "region": [1.887228,0.596316,1.887379,0.596502,0.000000,8.809496]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/2_1397753.b3dm"}}}