{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950462,-0.310842,0.000000,0.000000,0.114376,-0.349728,0.929843,0.000000,-0.288770,0.882972,0.370097,0.000000,-1842659.509105,5634301.346231,2345804.715457,1],    "boundingVolume": {    "region": [1.886801,0.379074,1.886949,0.379153,0.000000,25.060780]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15_4391.b3dm"}}}