aistudio-wpf-diagram/AIStudio.Wpf.DiagramDesigner.Demo/ViewModels/Links/SnappingViewModel.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;

namespace AIStudio.Wpf.DiagramDesigner.Demo.ViewModels
{
    class SnappingViewModel : BaseViewModel
    {
        public SnappingViewModel()
        {
            Title = "Link Snapping";
            Info = "While dragging a new link, it will try to find (and link) to the closest target within a radius.";

            _service.ColorViewModel.FillColor.Color = System.Windows.Media.Colors.Orange;

            DiagramViewModel = new DiagramViewModel();
            DiagramViewModel.PageSizeType = PageSizeType.Custom;
            DiagramViewModel.PageSize = new Size(double.NaN, double.NaN);
            DiagramViewModel.EnableSnapping = true;

            DefaultDesignerItemViewModel node1 = new DefaultDesignerItemViewModel() { Left = 50, Top = 50, Text = "1" };
            DiagramViewModel.DirectAddItemCommand.Execute(node1);

            DefaultDesignerItemViewModel node2 = new DefaultDesignerItemViewModel() { Left = 300, Top = 300, Text = "2" };
            DiagramViewModel.DirectAddItemCommand.Execute(node2);

            DefaultDesignerItemViewModel node3 = new DefaultDesignerItemViewModel() { Left = 300, Top = 50, Text = "3" };
            DiagramViewModel.DirectAddItemCommand.Execute(node3);
        }
    }
}