UWP-Win10（秋季创意者更新）电路绘制操控最佳可视化控件咨询

Hey there! Let's break down the ideal XAML controls and approach for your UWP circuit simulator, since you're targeting the Windows 10 Fall Creators Update and need drag-drop, rotation, and wiring functionality:

1. Core Container: Canvas (Non-Negotiable for Free Layout) #

The Canvas control is your best bet as the main drawing surface. Here's why:

• It enables absolute positioning of elements via Canvas.Left and Canvas.Top properties, which is perfect for placing circuit components anywhere on the screen.
• It plays seamlessly with manipulation events (drag, rotate) since you can directly update an element's position/rotation values in real time.
• It's lightweight and fully compatible with all Fall Creators Update APIs—no compatibility hoops to jump through.

2. Reusable Component Elements: UserControl #

Wrap each circuit component (resistor, capacitor, etc.) in a UserControl to encapsulate its visual design and interactivity:

• Inside the UserControl, use Path elements to draw standard electrical symbols (you can design these in Blend or find pre-made vector paths online). Add small Ellipse controls as connection pins to simplify wiring.
• Enable manipulation by setting ManipulationMode="TranslateX, TranslateY, Rotate" on the UserControl's root element. Then handle the ManipulationDelta event to update position and rotation:

  private void Component_ManipulationDelta(object sender, ManipulationDeltaRoutedEventArgs e)
  {
      var control = sender as UserControl;
      Canvas.SetLeft(control, Canvas.GetLeft(control) + e.Delta.Translation.X);
      Canvas.SetTop(control, Canvas.GetTop(control) + e.Delta.Translation.Y);
      control.Rotation += e.Delta.Rotation;
  }
  

• This approach keeps your code clean and lets you reuse components across the app without duplicating logic.

3. Wiring: Path or Polyline #

For drawing wires between components:

• Use the Path control (with a thick Stroke and solid color) to create dynamic lines. Listen to mouse/touch events (PointerPressed, PointerMoved, PointerReleased) on the Canvas to define the wire's start and end points.
• Update the Path's Data property in real time using PathGeometry to build the line segment. For example:

  private void Canvas_PointerMoved(object sender, PointerRoutedEventArgs e)
  {
      if (isDrawingWire)
      {
          var currentPoint = e.GetCurrentPoint(canvas).Position;
          var geometry = new PathGeometry();
          var figure = new PathFigure { StartPoint = wireStartPoint };
          figure.Segments.Add(new LineSegment { Point = currentPoint });
          geometry.Figures.Add(figure);
          currentWire.Data = geometry;
      }
  }
  

• If you need multi-segment wires, use Polyline instead and add points to its Points collection as the user drags.

4. Honorable Mention: ItemsControl (For MVVM-Friendly Layout) #

If you're using the MVVM pattern, wrap your Canvas in an ItemsControl:

• Set ItemsPanelTemplate to a Canvas so your component viewmodels can bind to Canvas.Left/Canvas.Top properties.
• This makes it easier to manage a collection of components (add/remove them via viewmodel commands) while retaining all the free-layout benefits of Canvas.

Key Notes for Fall Creators Update Compatibility #

All the controls and APIs mentioned here are fully supported in the Fall Creators Update (1709). You won't need to use any preview APIs or workarounds—stick to the stable UWP XAML toolkit.

Hope this helps you crush that visualization bottleneck! You've already nailed the tough math part, so the UI implementation should be smooth sailing from here.

内容的提问来源于stack exchange，提问作者Leandro Alsina