{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950487,-0.310764,0.000000,0.000000,0.114311,-0.349627,0.929889,0.000000,-0.288712,0.883040,0.369980,0.000000,-1842288.810080,5634733.261464,2345063.312763,1],    "boundingVolume": {    "region": [1.886719,0.378949,1.886867,0.379027,0.000000,11.935676]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/14_3947.b3dm"}}}