{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949106,-0.314958,0.000000,0.000000,0.175972,-0.530282,0.829358,0.000000,-0.260663,0.785492,0.561299,0.000000,-1664300.701884,5015267.480737,3559834.423156,1],    "boundingVolume": {    "region": [1.891140,0.595902,1.891277,0.596008,0.000000,17.644930]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1361392.b3dm"}}}