{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950584,-0.310469,0.000000,0.000000,0.173658,-0.531700,0.828938,0.000000,-0.256817,0.786313,0.561922,0.000000,-1639746.496553,5020521.542850,3563794.410043,1],    "boundingVolume": {    "region": [1.886434,0.596659,1.886532,0.596757,0.000000,11.035601]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/7_1394809.b3dm"}}}