我正在使用墨水演示器绘制笔画。但问题是在绘制曲线时，会画出锯齿状线条。直线没有问题。这就是我的做法..我不知道在哪里进行更改，以使线条更平滑。
private void MyIP_MouseLeftButtonDown(object sender, MouseEventArgs e)
{
MyIP.CaptureMouse();
DrawingAttributes att = new DrawingAttributes();
att.Color = CB;
att.Width = StrokeWidth;
att.Height = StrokeWidth;
if (bErase == true)
{
StylusPointCollection ErasePointCollection = new StylusPointCollection();
ErasePointCollection.Add(e.StylusDevice.GetStylusPoints(MyIP));
lastPoint = ErasePointCollection[ErasePointCollection.Count - 1];
EraseStroke = new Stroke(ErasePointCollection);
EraseStroke.DrawingAttributes = att;
}
else
{
StylusPointCollection MyStylusPointCollection = new StylusPointCollection();
MyStylusPointCollection.Add(e.StylusDevice.GetStylusPoints(MyIP));
NewStroke = new Stroke(MyStylusPointCollection);
NewStroke.DrawingAttributes = att;
MyIP.Strokes.Add(NewStroke);
}
}
//StylusPoint objects are collected from the MouseEventArgs and added to MyStroke.
private void MyIP_MouseMove(object sender, MouseEventArgs e)
{
if (bErase == true)
{
//StylusPointCollection pointErasePoints = e.StylusDevice.GetStylusPoints(MyIP);
//EraseStroke.StylusPoints.Add(e.StylusDevice.GetStylusPoints(MyIP));
//pointErasePoints.Insert(0, lastPoint);
//StrokeCollection hitStrokes = MyIP.Strokes.HitTest(pointErasePoints);
//if (hitStrokes.Count > 0)
//{
// foreach (Stroke hitStroke in hitStrokes)
// {
// ////For each intersecting stroke, split the stroke into two while removing the intersecting points.
// ProcessPointErase(hitStroke, pointErasePoints);
// }
//}
//lastPoint = pointErasePoints[pointErasePoints.Count - 1];
//STROKEERASE METHOD
StylusPointCollection pointErasePoints = e.StylusDevice.GetStylusPoints(MyIP);
StrokeCollection hitStrokes = MyIP.Strokes.HitTest(pointErasePoints);
if (hitStrokes.Count > 0)
{
foreach (Stroke hitStroke in hitStrokes)
{
MyIP.Strokes.Remove(hitStroke);
undoStack.Push(hitStroke);
undoStateBufferStack.Push(true);
}
}
}
if (NewStroke != null)
NewStroke.StylusPoints.Add(e.StylusDevice.GetStylusPoints(MyIP));
}
//MyStroke is completed
private void MyIP_LostMouseCapture(object sender, MouseEventArgs e)
{
if (NewStroke != null)
{
undoStack.Push(NewStroke);
undoStateBufferStack.Push(false);
}
EraseStroke = null;
NewStroke = null;
}
//Set the Clip property of the inkpresenter so that the strokes
//are contained within the boundary of the inkpresenter
private void SetBoundary()
{
RectangleGeometry MyRectangleGeometry = new RectangleGeometry();
MyRectangleGeometry.Rect = new Rect(0, 0, MyIP.ActualWidth, MyIP.ActualHeight);
MyIP.Clip = MyRectangleGeometry;
}