{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898350,-0.439280,0.000000,0.000000,0.284547,-0.581914,0.761846,0.000000,-0.333718,0.682471,0.650281,0.000000,-2131520.943030,4359065.516568,4125661.685112,1],    "boundingVolume": {    "region": [2.025590,0.707953,2.025597,0.707957,0.000000,9.943279]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15.b3dm"}}}