{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950101,-0.311942,0.000000,0.000000,0.172864,-0.526503,0.832413,0.000000,-0.259127,0.789240,0.556735,0.000000,-1654466.672670,5039108.974030,3530826.087778,1],    "boundingVolume": {    "region": [1.887973,0.590388,1.888093,0.590512,0.000000,6.111954]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/6/15_1338682.b3dm"}}}