{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943129,-0.332428,0.000000,0.000000,0.186184,-0.528222,0.828443,0.000000,-0.274815,0.779676,0.562656,0.000000,-1754671.150848,4978157.245567,3568457.813054,1],    "boundingVolume": {    "region": [1.909611,0.597556,1.909736,0.597635,0.000000,8.797177]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1286491.b3dm"}}}