{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949066,-0.315077,0.000000,0.000000,0.116183,-0.349962,0.929531,0.000000,-0.292605,0.881377,0.370888,0.000000,-1867133.354500,5624130.691556,2350819.803493,1],    "boundingVolume": {    "region": [1.891280,0.379907,1.891388,0.380022,0.000000,67.897340]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/17/21_1225.b3dm"}}}