{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949313,-0.314333,0.000000,0.000000,0.175724,-0.530703,0.829141,0.000000,-0.260077,0.785456,0.561621,0.000000,-1660561.350457,5015043.874655,3561881.320606,1],    "boundingVolume": {    "region": [1.890501,0.596303,1.890599,0.596385,0.000000,8.812643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1416288.b3dm"}}}