{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949295,-0.314386,0.000000,0.000000,0.175736,-0.530639,0.829180,0.000000,-0.260133,0.785479,0.561564,0.000000,-1660920.122544,5015187.749301,3561513.923775,1],    "boundingVolume": {    "region": [1.890556,0.596234,1.890655,0.596315,0.000000,8.242302]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/12_1447332.b3dm"}}}