InkCanvasに線を引く

Question

私は、InkCanvasに図形を描きたいと思っています。私は、次のしているページのコンストラクタで

<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"> 
    <Canvas x:Name="selectionCanvas" /> 
    <InkCanvas x:Name="inker" /> 
</Grid> 

： - - ：次のように

inker.InkPresenter.UnprocessedInput.PointerPressed += StartLine; 
inker.InkPresenter.UnprocessedInput.PointerMoved += ContinueLine; 
inker.InkPresenter.UnprocessedInput.PointerReleased += CompleteLine; 
inker.InkPresenter.InputProcessingConfiguration.RightDragAction = InkInputRightDragAction.LeaveUnprocessed; 

そして、3つのイベントがあります： -

private void StartLine(InkUnprocessedInput sender, PointerEventArgs args) 
{ 
    line = new Line(); 
    line.X1 = args.CurrentPoint.RawPosition.X; 
    line.Y1 = args.CurrentPoint.RawPosition.Y; 
    line.X2 = args.CurrentPoint.RawPosition.X; 
    line.Y2 = args.CurrentPoint.RawPosition.Y; 

    line.Stroke = new SolidColorBrush(Colors.Purple); 
    line.StrokeThickness = 4; 
    selectionCanvas.Children.Add(line); 
} 

private void ContinueLine(InkUnprocessedInput sender, PointerEventArgs args) 
{ 
    line.X2 = args.CurrentPoint.RawPosition.X; 
    line.Y2 = args.CurrentPoint.RawPosition.Y; 

} 

private void CompleteLine(InkUnprocessedInput sender, PointerEventArgs args) 
{ 

} 

ですこれまでのところ私は、次のXAMLを持っていますとにかくselectionCanvasに現在描画されている線をInkCanvasに描画できますか？

おかげで、

ジェフ

Answer 1

おかげジェイデン、正しい方向に私を指摘

。完全を期すためにここに私の解決策からのコードされています -

private void CompleteLine(InkUnprocessedInput sender, PointerEventArgs args) 
{ 
    List<InkPoint> points = new List<InkPoint>(); 
     InkStrokeBuilder builder = new InkStrokeBuilder(); 


     InkPoint pointOne = new InkPoint(new Point(line.X1, line.Y1), 0.5f); 
     points.Add(pointOne); 
     InkPoint pointTwo = new InkPoint(new Point(line.X2, line.Y2), 0.5f); 
     points.Add(pointTwo); 

     InkStroke stroke = builder.CreateStrokeFromInkPoints(points, System.Numerics.Matrix3x2.Identity); 
     InkDrawingAttributes ida = inker.InkPresenter.CopyDefaultDrawingAttributes(); 
     stroke.DrawingAttributes = ida; 
     inker.InkPresenter.StrokeContainer.AddStroke(stroke); 
     selectionCanvas.Children.Remove(line); 
}