fix cut file calculation

PCUT/PCUT/Extensions/HpglExtensions.cs

@@ -27,7 +27,6 @@ namespace PCUT.Extensions
         public static IEnumerable<(string Path, TimeSpan EstimateTime)> ToHPGL(
             this XDocument svg,
             (double Width, double Height) size,
-            (double Width, double Height) sheetSize,
             int speed, // mm/s
             int pen = 0)
         {
@@ -36,7 +35,7 @@ namespace PCUT.Extensions
             var widthUnit = (int)Math.Ceiling(size.Width / UnitLength);
             var heightUnit = (int)Math.Ceiling(size.Height / UnitLength);
 
-            SvgTransform transform = new TranslateTransform(0, (int)Math.Ceiling(sheetSize.Height / UnitLength));
+            SvgTransform transform = new TranslateTransform(0, heightUnit);
 
             var flipTransform = new ScaleTransform(1, -1);
             flipTransform.SetNext(transform);
@@ -64,7 +63,7 @@ namespace PCUT.Extensions
                             {
                                 var lengthX = Math.Abs(maxX - moveCommand.X);
                                 builder.AddHpglMove(moveCommand.X, moveCommand.Y, ref maxX);
-                                length += (lengthX + (sheetSize.Height / UnitLength)) * 0.75;
+                                length += (lengthX + (heightUnit / UnitLength)) * 0.75;
                                 break;
                             }
                         case LineCommand lineCommand:

PCUT/PCUT/Pages/DesignCenter/CutFilesDialog.xaml.cs

@@ -49,23 +49,23 @@ namespace PCUT.Pages
             StartButton.IsEnabled = !(portName is null);
 
             ViewModels = DataContext as CutDialogViewModel;
+            ViewModels.Width = Math.Ceiling(_designCenterViewModel.UseOrigin ? _designCenterViewModel.Width : _svgData.NestedWidth.Value);
+            ViewModels.Height = Math.Ceiling(_designCenterViewModel.UseOrigin ? _designCenterViewModel.Height : _svgData.NestedHeight.Value);
         }
 
         private Task _printTask;
         private void ContentDialog_Opened(ContentDialog sender, ContentDialogOpenedEventArgs args)
         {
             var data = _designCenterViewModel.UseOrigin ? _svgData.Data : _svgData.NestedData;
-            PreviewWidthDisplay.Text = Math.Ceiling(_designCenterViewModel.UseOrigin ? _svgData.OriginWidth.Value : _svgData.NestedWidth.Value).ToString();
+            PreviewWidthDisplay.Text = ViewModels.Width.ToString();
-            PreviewHeightDisplay.Text = Math.Ceiling(_designCenterViewModel.UseOrigin ? _svgData.OriginHeight.Value : _svgData.NestedHeight.Value).ToString();
+            PreviewHeightDisplay.Text = ViewModels.Height.ToString();
             DisplayModel.SetSource(data);
         }
 
         private void MainScroll_Loading(FrameworkElement sender, object args)
         {
             var borderRatio = MainColumnDefinition.ActualWidth / PreviewRowDefinition.ActualHeight;
-            var width = Math.Ceiling(_designCenterViewModel.UseOrigin ? _svgData.OriginWidth.Value : _svgData.NestedWidth.Value);
+            var ratio = ViewModels.Width / ViewModels.Height;
-            var height = Math.Ceiling(_designCenterViewModel.UseOrigin ? _svgData.OriginHeight.Value : _svgData.NestedHeight.Value);
-            var ratio = width / height;
             if (ratio < borderRatio)
                 ((ComponentStyle)Resources["previewStyle"]).SetSize(PreviewRowDefinition, ratio);
             else
@@ -98,8 +98,7 @@ namespace PCUT.Pages
                     await Task.Factory.StartNew(() =>
                     {
                         var data = nested.ToHPGL(
-                            (_svgData.OriginWidth.Value, _svgData.OriginHeight.Value),
+                            (ViewModels.Width, ViewModels.Height),
-                            (_designCenterViewModel.Width, _designCenterViewModel.Height),
                             _portSettings.Speed);
                         serialPort.Open();
                         Task waitTask = Task.CompletedTask;

PCUT/PCUT/Pages/DesignCenter/SvgNestPage.xaml.cs

@@ -401,7 +401,7 @@ namespace PCUT.Pages
             var width = _svgData.SheetInfo.Width;
             var height = _svgData.SheetInfo.Height;
             var viewBox = _svgData.OriginViewBox.GetViewBoxData();
-            nestedDoc.Root.SetAttributeValue("viewBox", $"{viewBox.MinX - 100} {viewBox.MinY - 100} {nestedWidth + 100} {nestedHeight + 100}");
+            nestedDoc.Root.SetAttributeValue("viewBox", $"0 0 {nestedWidth} {nestedHeight}");
             nestedDoc.Root.Add(XElement.Parse($"<rect id=\"PCUT_BOUNDING\" x=\"0\" y=\"0\" width=\"{_designCenterModel.Width}\" height=\"{_designCenterModel.Height}\" fill=\"none\" stroke=\"blue\" stroke-dasharray=\"{_designCenterModel.Width / 200}\" stroke-width=\"{_designCenterModel.Height / 2000}\" />"));
             nestedDoc.Root.Add(XElement.Parse($"<rect id=\"PCUT_BOUNDING_NESTED\" x=\"0\" y=\"0\" width=\"{nestedWidth}\" height=\"{nestedHeight}\" fill=\"none\" stroke=\"blue\" stroke-dasharray=\"{width / 200}\" stroke-width=\"{width / 2000}\" />"));
             return (nestedDoc, nestedWidth, nestedHeight);

PCUT/PCUT/ViewModels/CutDialogViewModel.cs

@@ -12,6 +12,9 @@ namespace PCUT.ViewModels
 {
     internal class CutDialogViewModel : NotificationBase
     {
+        public double Width { get; set; }
+        public double Height { get; set; }
+
         private string _printCommand;
         public string PrintCommand
         {