{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949999,-0.312252,0.000000,0.000000,0.174362,-0.530482,0.829570,0.000000,-0.258490,0.786435,0.560984,0.000000,-1650425.423287,5021280.756758,3557830.443368,1],    "boundingVolume": {    "region": [1.888277,0.595509,1.888441,0.595640,0.000000,7.997348]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/15_1457134.b3dm"}}}