{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949071,-0.315063,0.000000,0.000000,0.176044,-0.530301,0.829331,0.000000,-0.260742,0.785437,0.561340,0.000000,-1664801.966733,5014916.052332,3560093.372919,1],    "boundingVolume": {    "region": [1.891251,0.595951,1.891388,0.596058,0.000000,28.770337]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373783.b3dm"}}}