{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950528,-0.310640,0.000000,0.000000,0.173537,-0.531007,0.829407,0.000000,-0.257105,0.786716,0.561226,0.000000,-1641580.854741,5023081.444459,3559369.781720,1],    "boundingVolume": {    "region": [1.886604,0.595810,1.886720,0.595924,0.000000,8.818020]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1425612.b3dm"}}}