{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950036,-0.312141,0.000000,0.000000,0.174284,-0.530453,0.829605,0.000000,-0.258409,0.786498,0.560933,0.000000,-1649908.940255,5021684.363855,3557502.542869,1],    "boundingVolume": {    "region": [1.888160,0.595446,1.888324,0.595577,0.000000,8.817599]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/14_1456961.b3dm"}}}