{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951866,-0.306515,0.000000,0.000000,0.112607,-0.349695,0.930071,0.000000,-0.284821,0.884496,0.369518,0.000000,-1817459.330821,5644017.760126,2342128.676186,1],    "boundingVolume": {    "region": [1.882244,0.378430,1.882408,0.378550,0.000000,27.454553]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/11_46189.b3dm"}}}