{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949095,-0.314991,0.000000,0.000000,0.116137,-0.349931,0.929549,0.000000,-0.292531,0.881420,0.370843,0.000000,-1866659.406372,5624406.384292,2350538.480071,1],    "boundingVolume": {    "region": [1.891189,0.379859,1.891298,0.379975,0.000000,68.927894]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/21_630.b3dm"}}}