Greetings!

I have some troubles with GetBBox method:

Why box doesn't match  with  the face???

Why!!???? I don't understand! Help me please.

Here is my code:

double[] baseBox = firstCylinderBase.GetBox() as double[];
            Bounding(document, baseBox); 
        (firstCylinderBase as IEntity).Select4(true, null);
......
public void Bounding(IModelDoc2 model, double[] boxFeature)
        {
            SketchManager sketchManager = default(SketchManager);
            SketchPoint[] sketchPoint = new SketchPoint[9];
            SketchSegment[] sketchSegment = new SketchSegment[13];
            Debug.Print("  point1 = " + "(" + boxFeature[0] * 1000.0 + ", " + boxFeature[1] * 1000.0 + ", " + boxFeature[2] * 1000.0 + ") mm");
            Debug.Print("  point2 = " + "(" + boxFeature[3] * 1000.0 + ", " + boxFeature[4] * 1000.0 + ", " + boxFeature[5] * 1000.0 + ") mm");
            model.Insert3DSketch2(true);
            model.SetAddToDB(true);
            model.SetDisplayWhenAdded(false);
            sketchManager = (SketchManager)model.SketchManager;
            // Draw points at each corner of bounding box
            sketchPoint[0] = (SketchPoint)sketchManager.CreatePoint(boxFeature[3], boxFeature[1], boxFeature[5]);
            sketchPoint[1] = (SketchPoint)sketchManager.CreatePoint(boxFeature[0], boxFeature[1], boxFeature[5]);
            sketchPoint[2] = (SketchPoint)sketchManager.CreatePoint(boxFeature[0], boxFeature[1], boxFeature[2]);
            sketchPoint[3] = (SketchPoint)sketchManager.CreatePoint(boxFeature[3], boxFeature[1], boxFeature[2]);
            sketchPoint[4] = (SketchPoint)sketchManager.CreatePoint(boxFeature[3], boxFeature[4], boxFeature[5]);
            sketchPoint[5] = (SketchPoint)sketchManager.CreatePoint(boxFeature[0], boxFeature[4], boxFeature[5]);
            sketchPoint[6] = (SketchPoint)sketchManager.CreatePoint(boxFeature[0], boxFeature[4], boxFeature[2]);
            sketchPoint[7] = (SketchPoint)sketchManager.CreatePoint(boxFeature[3], boxFeature[4], boxFeature[2]);
            // Now draw bounding box
            sketchSegment[0] = (SketchSegment)sketchManager.CreateLine(sketchPoint[0].X, sketchPoint[0].Y, sketchPoint[0].Z, sketchPoint[1].X, sketchPoint[1].Y, sketchPoint[1].Z);
            sketchSegment[1] = (SketchSegment)sketchManager.CreateLine(sketchPoint[1].X, sketchPoint[1].Y, sketchPoint[1].Z, sketchPoint[2].X, sketchPoint[2].Y, sketchPoint[2].Z);
            sketchSegment[2] = (SketchSegment)sketchManager.CreateLine(sketchPoint[2].X, sketchPoint[2].Y, sketchPoint[2].Z, sketchPoint[3].X, sketchPoint[3].Y, sketchPoint[3].Z);
            sketchSegment[3] = (SketchSegment)sketchManager.CreateLine(sketchPoint[3].X, sketchPoint[3].Y, sketchPoint[3].Z, sketchPoint[0].X, sketchPoint[0].Y, sketchPoint[0].Z);
            sketchSegment[4] = (SketchSegment)sketchManager.CreateLine(sketchPoint[0].X, sketchPoint[0].Y, sketchPoint[0].Z, sketchPoint[4].X, sketchPoint[4].Y, sketchPoint[4].Z);
            sketchSegment[5] = (SketchSegment)sketchManager.CreateLine(sketchPoint[1].X, sketchPoint[1].Y, sketchPoint[1].Z, sketchPoint[5].X, sketchPoint[5].Y, sketchPoint[5].Z);
            sketchSegment[6] = (SketchSegment)sketchManager.CreateLine(sketchPoint[2].X, sketchPoint[2].Y, sketchPoint[2].Z, sketchPoint[6].X, sketchPoint[6].Y, sketchPoint[6].Z);
            sketchSegment[7] = (SketchSegment)sketchManager.CreateLine(sketchPoint[3].X, sketchPoint[3].Y, sketchPoint[3].Z, sketchPoint[7].X, sketchPoint[7].Y, sketchPoint[7].Z);
            sketchSegment[8] = (SketchSegment)sketchManager.CreateLine(sketchPoint[4].X, sketchPoint[4].Y, sketchPoint[4].Z, sketchPoint[5].X, sketchPoint[5].Y, sketchPoint[5].Z);
            sketchSegment[9] = (SketchSegment)sketchManager.CreateLine(sketchPoint[5].X, sketchPoint[5].Y, sketchPoint[5].Z, sketchPoint[6].X, sketchPoint[6].Y, sketchPoint[6].Z);
            sketchSegment[10] = (SketchSegment)sketchManager.CreateLine(sketchPoint[6].X, sketchPoint[6].Y, sketchPoint[6].Z, sketchPoint[7].X, sketchPoint[7].Y, sketchPoint[7].Z);
            sketchSegment[11] = (SketchSegment)sketchManager.CreateLine(sketchPoint[7].X, sketchPoint[7].Y, sketchPoint[7].Z, sketchPoint[4].X, sketchPoint[4].Y, sketchPoint[4].Z);
            model.SetDisplayWhenAdded(true);
            model.SetAddToDB(false);
            model.Insert3DSketch2(true);
        }

Thanks for advantage!