{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950552,-0.310565,0.000000,0.000000,0.173844,-0.532089,0.828649,0.000000,-0.256806,0.786011,0.562351,0.000000,-1639678.846602,5018598.353787,3566514.943359,1],    "boundingVolume": {    "region": [1.886535,0.597176,1.886632,0.597275,0.000000,13.985162]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_1384881.b3dm"}}}