{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949069,-0.315067,0.000000,0.000000,0.116165,-0.349923,0.929548,0.000000,-0.292601,0.881396,0.370845,0.000000,-1867110.185029,5624252.995259,2350547.421422,1],    "boundingVolume": {    "region": [1.891270,0.379861,1.891378,0.379976,0.000000,67.756070]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/17/21_641.b3dm"}}}