v2.12.2v2.12.2

- (Add) Layer action - Export layers to heat map: Export a layer range to a grayscale heat map image that represents the median of the mass in the Z depth/perception. The pixel brightness/intensity shows where the most mass are concentrated.

4 files changed, 162 insertions, 3 deletions

diff --git a/UVtools.Core/Operations/Operation.cs b/UVtools.Core/Operations/Operation.cs
index 5cb7cad..f8b9b10 100644
--- a/UVtools.Core/Operations/Operation.cs
+++ b/UVtools.Core/Operations/Operation.cs
@@ -405,7 +405,7 @@ namespace UVtools.Core.Operations
         {
             if (!HaveMask) return null;
 
-            var mask = mat.CloneBlank();
+            var mask = EmguExtensions.InitMat(mat.Size);
             using VectorOfVectorOfPoint vec = new(points);
             CvInvoke.DrawContours(mask, vec, -1, EmguExtensions.WhiteByte, -1);
             return GetRoiOrDefault(mask);
diff --git a/UVtools.Core/Operations/OperationLayerExportHeatMap.cs b/UVtools.Core/Operations/OperationLayerExportHeatMap.cs
new file mode 100644
index 0000000..eb6482c
--- /dev/null
+++ b/UVtools.Core/Operations/OperationLayerExportHeatMap.cs
@@ -0,0 +1,159 @@
+/*
+ *                     GNU AFFERO GENERAL PUBLIC LICENSE
+ *                       Version 3, 19 November 2007
+ *  Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ *  Everyone is permitted to copy and distribute verbatim copies
+ *  of this license document, but changing it is not allowed.
+ */
+
+using System;
+using System.Text;
+using System.Threading.Tasks;
+using Emgu.CV;
+using Emgu.CV.CvEnum;
+using UVtools.Core.Extensions;
+using UVtools.Core.FileFormats;
+
+namespace UVtools.Core.Operations
+{
+    [Serializable]
+    public sealed class OperationLayerExportHeatMap : Operation
+    {
+        #region Members
+        private string _filePath;
+        private bool _cropByRoi = true;
+
+        #endregion
+
+        #region Overrides
+
+        public override bool CanHaveProfiles => false;
+        public override string Title => "Export layers to heat map";
+
+        public override string Description =>
+            "Export a layer range to a grayscale heat map image that represents the median of the mass in the Z depth/perception\n" +
+            "The pixel brightness/intensity shows where the most mass are concentrated.";
+
+        public override string ConfirmationText =>
+            $"generate a heatmap from layers {LayerIndexStart} through {LayerIndexEnd}?";
+
+        public override string ProgressTitle =>
+            $"Generating a heatmap from layers {LayerIndexStart} through {LayerIndexEnd}";
+
+        public override string ProgressAction => "Packed layers";
+
+        public override string ValidateInternally()
+        {
+            var sb = new StringBuilder();
+
+            if (LayerRangeCount < 2)
+            {
+                sb.AppendLine("To generate a heat map at least two layers are required.");
+            }
+
+            return sb.ToString();
+        }
+
+        public override string ToString()
+        {
+            var result = $"[Crop by ROI: {_cropByRoi}]" +
+                         LayerRangeString;
+            if (!string.IsNullOrEmpty(ProfileName)) result = $"{ProfileName}: {result}";
+            return result;
+        }
+
+        #endregion
+
+        #region Properties
+
+        public string FilePath
+        {
+            get => _filePath;
+            set => RaiseAndSetIfChanged(ref _filePath, value);
+        }
+
+        public bool CropByROI
+        {
+            get => _cropByRoi;
+            set => RaiseAndSetIfChanged(ref _cropByRoi, value);
+        }
+
+        #endregion
+
+        #region Constructor
+
+        public OperationLayerExportHeatMap()
+        { }
+
+        public OperationLayerExportHeatMap(FileFormat slicerFile) : base(slicerFile)
+        {
+            _filePath = SlicerFile.FileFullPath + ".heatmap.png";
+        }
+
+        #endregion
+
+        #region Methods
+
+        protected override bool ExecuteInternally(OperationProgress progress)
+        {
+            using var sumMat32 = EmguExtensions.InitMat(SlicerFile.Resolution, 1, DepthType.Cv32S);
+            var sumMat32Roi = GetRoiOrDefault(sumMat32);
+            using var mask = GetMask(sumMat32);
+            
+
+            Parallel.For(LayerIndexStart, LayerIndexEnd+1, layerIndex =>
+            {
+                if (progress.Token.IsCancellationRequested) return;
+
+                using var mat = SlicerFile[layerIndex].LayerMat;
+                using var mat32 = new Mat();
+                mat.ConvertTo(mat32, DepthType.Cv32S);
+                var mat32Roi = GetRoiOrDefault(mat32);
+
+                lock (progress.Mutex)
+                {
+                    CvInvoke.Add(sumMat32Roi, mat32Roi, sumMat32Roi, mask);
+                    progress++;
+                }
+            });
+
+            if (!progress.Token.IsCancellationRequested)
+            {
+                using var sumMat = EmguExtensions.InitMat(sumMat32.Size);
+                sumMat32.ConvertTo(sumMat, DepthType.Cv8U, 1.0 / LayerRangeCount);
+                if (_cropByRoi && HaveROI)
+                {
+                    var sumMatRoi = GetRoiOrDefault(sumMat);
+                    sumMatRoi.Save(_filePath);
+                }
+                else
+                {
+                    sumMat.Save(_filePath);
+                }
+            }
+
+            return !progress.Token.IsCancellationRequested;
+        }
+
+        #endregion
+
+        #region Equality
+
+        private bool Equals(OperationLayerExportHeatMap other)
+        {
+            return _filePath == other._filePath && _cropByRoi == other._cropByRoi;
+        }
+
+        public override bool Equals(object obj)
+        {
+            return ReferenceEquals(this, obj) || obj is OperationLayerExportHeatMap other && Equals(other);
+        }
+
+        public override int GetHashCode()
+        {
+            return HashCode.Combine(_filePath, _cropByRoi);
+        }
+
+        #endregion
+    }
+}
diff --git a/UVtools.Core/Operations/OperationLayerImport.cs b/UVtools.Core/Operations/OperationLayerImport.cs
index c1be566..5f10340 100644
--- a/UVtools.Core/Operations/OperationLayerImport.cs
+++ b/UVtools.Core/Operations/OperationLayerImport.cs
@@ -53,7 +53,7 @@ namespace UVtools.Core.Operations
 
         public override Enumerations.LayerRangeSelection StartLayerRangeSelection => Enumerations.LayerRangeSelection.None;
         public override bool CanROI => false;
-        public override string Title => "Import Layers";
+        public override string Title => "Import layers";
 
         public override string Description =>
             "Import layers from local files into the model at a selected layer height.\n" +
diff --git a/UVtools.Core/UVtools.Core.csproj b/UVtools.Core/UVtools.Core.csproj
index 9dedee7..5a6763a 100644
--- a/UVtools.Core/UVtools.Core.csproj
+++ b/UVtools.Core/UVtools.Core.csproj
@@ -10,7 +10,7 @@
     <RepositoryUrl>https://github.com/sn4k3/UVtools</RepositoryUrl>
     <PackageProjectUrl>https://github.com/sn4k3/UVtools</PackageProjectUrl>
     <Description>MSLA/DLP, file analysis, calibration, repair, conversion and manipulation</Description>
-    <Version>2.12.1</Version>
+    <Version>2.12.2</Version>
     <Copyright>Copyright © 2020 PTRTECH</Copyright>
     <PackageIcon>UVtools.png</PackageIcon>
     <Platforms>AnyCPU;x64</Platforms>