{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949138,-0.314861,0.000000,0.000000,0.116100,-0.349980,0.929535,0.000000,-0.292405,0.881446,0.370879,0.000000,-1865860.900225,5624576.052673,2350764.942469,1],    "boundingVolume": {    "region": [1.891052,0.379898,1.891161,0.380013,0.000000,72.367680]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/21_1188.b3dm"}}}