{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949991,-0.312277,0.000000,0.000000,0.174673,-0.531380,0.828930,0.000000,-0.258309,0.785815,0.561935,0.000000,-1649276.536972,5017342.923493,3563872.733765,1],    "boundingVolume": {    "region": [1.888316,0.596619,1.888454,0.596827,0.000000,8.764911]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/4_1407469.b3dm"}}}