{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950438,-0.310915,0.000000,0.000000,0.173811,-0.531325,0.829146,0.000000,-0.257251,0.786392,0.561614,0.000000,-1642514.781250,5021017.631015,3561833.383151,1],    "boundingVolume": {    "region": [1.886903,0.596286,1.887000,0.596385,0.000000,8.819004]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/3_1388678.b3dm"}}}