v3.9.3

- **Issues:**
  - (Fix) Resin traps and suction cups area sum, was losing precision due uint cast (#621)
  - (Fix) Overhang area was incorrectly showing bounding rectangle area instead it real area
- (Fix) OSF: Unable to open certain files when using anti-aliasing
- (Upgrade) .NET from 6.0.11 to 6.0.12

UVtools.ScriptSample/ScriptBuildGrid.cs

@@ -0,0 +1,119 @@
+using System;
+using System.Drawing;
+using UVtools.Core.Extensions;
+using UVtools.Core.Scripting;
+using Emgu.CV;
+using Emgu.CV.CvEnum;
+
+namespace UVtools.ScriptSample;
+
+public class ScriptBuildGrid : ScriptGlobals
+{
+    readonly ScriptNumericalInput<ushort> GridSpacing = new()
+    {
+        Label = "Size of the initial grains",
+        Unit = "px",
+        Minimum = 1,
+        Maximum = 10000,
+        Increment = 1,
+        Value = 200,
+    };
+
+    readonly ScriptNumericalInput<ushort> GridWidth = new()
+    {
+        Label = "Width of line",
+        Unit = "px",
+        Minimum = 1,
+        Maximum = 500,
+        Increment = 1,
+        Value = 1,
+    };
+
+    readonly ScriptNumericalInput<float> ExposureTime = new()
+    {
+        Label = "Exposure time",
+        Unit = "s",
+        Minimum = 0.1f,
+        Maximum = 1000f,
+        Increment = 0.5f,
+        DecimalPlates = 2,
+        Value = 1,
+    };
+
+    /// <summary>
+    /// Set configurations here, this function trigger just after load a script
+    /// </summary>
+    public void ScriptInit()
+    {
+        Script.Name = "Build grid pattern";
+        Script.Description = "Useful for measuring backlight quality";
+        Script.Author = "Jan Mrázek";
+        Script.Version = new Version(0, 1);
+        Script.UserInputs.Add(GridSpacing);
+        Script.UserInputs.Add(GridWidth);
+
+        Script.UserInputs.Add(ExposureTime);
+        ExposureTime.Value = SlicerFile.BottomExposureTime;
+    }
+
+    /// <summary>
+    /// Validate user inputs here, this function trigger when user click on execute
+    /// </summary>
+    /// <returns>A error message, empty or null if validation passes.</returns>
+    public string? ScriptValidate()
+    {
+        return null;
+    }
+
+    private Mat GenerateGridPattern() 
+    {
+        var pattern = SlicerFile.CreateMat();
+
+        for (int x = pattern.Size.Width / 2; x < pattern.Size.Width; x += GridSpacing.Value) {
+            CvInvoke.Line(pattern,
+                new Point(x, 0),
+                new Point(x, pattern.Size.Height),
+                EmguExtensions.WhiteColor, GridWidth.Value, LineType.FourConnected);
+            CvInvoke.Line(pattern,
+                new Point(pattern.Size.Width - x, 0),
+                new Point(pattern.Size.Width - x, pattern.Size.Height),
+                EmguExtensions.WhiteColor, GridWidth.Value, LineType.FourConnected);
+        }
+
+        for (int y = pattern.Size.Height / 2; y < pattern.Size.Height; y += GridSpacing.Value) {
+            CvInvoke.Line(pattern,
+                new Point(0, y),
+                new Point(pattern.Size.Width, y),
+                EmguExtensions.WhiteColor, GridWidth.Value, LineType.FourConnected);
+            CvInvoke.Line(pattern,
+                new Point(0, pattern.Size.Height - y),
+                new Point(pattern.Size.Width, pattern.Size.Height - y),
+                EmguExtensions.WhiteColor, GridWidth.Value, LineType.FourConnected);
+        }
+
+        return pattern;
+    }
+
+    /// <summary>
+    /// Execute the script, this function trigger when when user click on execute and validation passes
+    /// </summary>
+    /// <returns>True if executes successfully to the end, otherwise false.</returns>
+    public bool ScriptExecute()
+    {
+        Progress.Reset("Changing layers", 2); // Sets the progress name and number of items to process
+
+        SlicerFile.Reallocate(2);
+        
+        using var pattern = GenerateGridPattern();
+        SlicerFile[0].LayerMat = pattern;
+        Progress++;
+        SlicerFile[0].CopyImageTo(SlicerFile[1]);
+        Progress++;
+
+        SlicerFile.BottomLayerCount = 2; // Sanitize bottom layer count
+        SlicerFile.BottomExposureTime = ExposureTime.Value;
+        SlicerFile.ExposureTime = ExposureTime.Value;
+
+        return !Progress.Token.IsCancellationRequested;
+    }
+}