wpf-visual-process-framework/VisionFrame.Base/Converter/LocationConverter.cs

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Data;

namespace VisionFrame.Base.Converter
{
    public class LocationConverter : IMultiValueConverter
    {
        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
        {
            double.TryParse(values[0].ToString(), out double w);
            double.TryParse(values[1].ToString(), out double h);

            double w1 = w * 2;
            double h1 = h * 2;

            return new Thickness((w - w1) / 2, (h - h1) / 2, 0, 0);
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
        {
            return null;
        }
    }
}