{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950336,-0.311226,0.000000,0.000000,0.173882,-0.530954,0.829369,0.000000,-0.257578,0.786521,0.561283,0.000000,-1644601.903108,5021834.242106,3559732.596822,1],    "boundingVolume": {    "region": [1.887229,0.595877,1.887329,0.595994,0.000000,8.714310]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/14_1429933.b3dm"}}}