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/*
* 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 Emgu.CV;
using Emgu.CV.CvEnum;
using Emgu.CV.Util;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Xml.Serialization;
using UVtools.Core.Extensions;
using UVtools.Core.FileFormats;
using UVtools.Core.Layers;
using UVtools.Core.Managers;
namespace UVtools.Core.Operations;
[Serializable]
public class OperationRepairLayers : Operation
{
#region Members
private bool _repairIslands = true;
private bool _repairResinTraps = true;
private bool _repairSuctionCups;
private bool _removeEmptyLayers = true;
private ushort _removeIslandsBelowEqualPixelCount = 5;
private ushort _removeIslandsRecursiveIterations = 4;
private ushort _attachIslandsBelowLayers = 2;
private byte _resinTrapsOverlapBy = 5;
private byte _suctionCupsVentHole = 16;
private uint _gapClosingIterations = 1;
private uint _noiseRemovalIterations;
#endregion
#region Overrides
public override bool CanROI => false;
public override string IconClass => "fa-solid fa-toolbox";
public override string Title => "Repair layers and issues";
public override string Description => string.Empty;
public override string ConfirmationText => "attempt this repair?";
public override string ProgressTitle =>
$"Reparing layers {LayerIndexStart} through {LayerIndexEnd}";
public override string ProgressAction => "Repaired layers";
public override string? ValidateInternally()
{
var sb = new StringBuilder();
if (!_repairIslands && !_repairResinTraps && !_repairSuctionCups && !_removeEmptyLayers)
{
sb.AppendLine("You must select at least one repair operation.");
}
return sb.ToString();
}
public override string ToString()
{
var repair = new List<string>();
if(_repairIslands) repair.Add("Islands");
if(_repairResinTraps) repair.Add("Resin traps");
if(_repairSuctionCups) repair.Add("Suction cups");
if(_removeEmptyLayers) repair.Add("Empty layers");
var result = $"[Repair: {string.Join('/', repair)}] " +
$"[Gap closing: {_gapClosingIterations}px] " +
$"[Noise removal: {_noiseRemovalIterations}px]" + LayerRangeString;
if (!string.IsNullOrEmpty(ProfileName)) result = $"{ProfileName}: {result}";
return result;
}
#endregion
#region Constructor
public OperationRepairLayers() { }
public OperationRepairLayers(FileFormat slicerFile) : base(slicerFile) { }
#endregion
#region Properties
public bool RepairIslands
{
get => _repairIslands;
set => RaiseAndSetIfChanged(ref _repairIslands, value);
}
public bool RepairResinTraps
{
get => _repairResinTraps;
set => RaiseAndSetIfChanged(ref _repairResinTraps, value);
}
public bool RepairSuctionCups
{
get => _repairSuctionCups;
set => RaiseAndSetIfChanged(ref _repairSuctionCups, value);
}
public bool RemoveEmptyLayers
{
get => _removeEmptyLayers;
set => RaiseAndSetIfChanged(ref _removeEmptyLayers, value);
}
public ushort RemoveIslandsBelowEqualPixelCount
{
get => _removeIslandsBelowEqualPixelCount;
set => RaiseAndSetIfChanged(ref _removeIslandsBelowEqualPixelCount, value);
}
public ushort RemoveIslandsRecursiveIterations
{
get => _removeIslandsRecursiveIterations;
set => RaiseAndSetIfChanged(ref _removeIslandsRecursiveIterations, value);
}
public ushort AttachIslandsBelowLayers
{
get => _attachIslandsBelowLayers;
set => RaiseAndSetIfChanged(ref _attachIslandsBelowLayers, value);
}
public byte ResinTrapsOverlapBy
{
get => _resinTrapsOverlapBy;
set => RaiseAndSetIfChanged(ref _resinTrapsOverlapBy, value);
}
public byte SuctionCupsVentHole
{
get => _suctionCupsVentHole;
set => RaiseAndSetIfChanged(ref _suctionCupsVentHole, value);
}
public uint GapClosingIterations
{
get => _gapClosingIterations;
set => RaiseAndSetIfChanged(ref _gapClosingIterations, value);
}
public uint NoiseRemovalIterations
{
get => _noiseRemovalIterations;
set => RaiseAndSetIfChanged(ref _noiseRemovalIterations, value);
}
[XmlIgnore] public IslandDetectionConfiguration IslandDetectionConfig { get; set; } = new();
#endregion
#region Equality
protected bool Equals(OperationRepairLayers other)
{
return _repairIslands == other._repairIslands && _repairResinTraps == other._repairResinTraps && _removeEmptyLayers == other._removeEmptyLayers && _repairSuctionCups == other._repairSuctionCups && _removeIslandsBelowEqualPixelCount == other._removeIslandsBelowEqualPixelCount && _removeIslandsRecursiveIterations == other._removeIslandsRecursiveIterations && _attachIslandsBelowLayers == other._attachIslandsBelowLayers && _resinTrapsOverlapBy == other._resinTrapsOverlapBy && _suctionCupsVentHole == other._suctionCupsVentHole && _gapClosingIterations == other._gapClosingIterations && _noiseRemovalIterations == other._noiseRemovalIterations;
}
public override bool Equals(object? obj)
{
if (ReferenceEquals(null, obj)) return false;
if (ReferenceEquals(this, obj)) return true;
if (obj.GetType() != this.GetType()) return false;
return Equals((OperationRepairLayers)obj);
}
public override int GetHashCode()
{
var hashCode = new HashCode();
hashCode.Add(_repairIslands);
hashCode.Add(_repairResinTraps);
hashCode.Add(_removeEmptyLayers);
hashCode.Add(_repairSuctionCups);
hashCode.Add(_removeIslandsBelowEqualPixelCount);
hashCode.Add(_removeIslandsRecursiveIterations);
hashCode.Add(_attachIslandsBelowLayers);
hashCode.Add(_resinTrapsOverlapBy);
hashCode.Add(_suctionCupsVentHole);
hashCode.Add(_gapClosingIterations);
hashCode.Add(_noiseRemovalIterations);
return hashCode.ToHashCode();
}
#endregion
#region Methods
protected override bool ExecuteInternally(OperationProgress progress)
{
var issues = SlicerFile.IssueManager.GetVisible().ToList();
// Remove islands
if (//Issues is not null
//IslandDetectionConfig is not null
_repairIslands
&& _removeIslandsBelowEqualPixelCount > 0
&& _removeIslandsRecursiveIterations != 1)
{
progress.Reset("Removed recursive islands");
ushort limit = _removeIslandsRecursiveIterations == 0
? ushort.MaxValue
: _removeIslandsRecursiveIterations;
var recursiveIssues = issues;
var islandsToRecompute = new ConcurrentBag<uint>();
var islandConfig = IslandDetectionConfig.Clone();
var overhangConfig = new OverhangDetectionConfiguration(false);
var touchingBoundsConfig = new TouchingBoundDetectionConfiguration(false);
var printHeightConfig = new PrintHeightDetectionConfiguration(false);
var resinTrapsConfig = new ResinTrapDetectionConfiguration(false);
var emptyLayersConfig = false;
islandConfig.Enabled = true;
//islandConfig.RequiredAreaToProcessCheck = (ushort)(_removeIslandsBelowEqualPixelCount / 2);
for (uint i = 0; i < limit; i++)
{
if (i > 0)
{
/*var whiteList = islandsToRecompute.GroupBy(u => u)
.Select(grp => grp.First())
.ToList();*/
islandConfig.WhiteListLayers = islandsToRecompute.ToList();
recursiveIssues = SlicerFile.IssueManager.DetectIssues(islandConfig, overhangConfig, resinTrapsConfig, touchingBoundsConfig, printHeightConfig, emptyLayersConfig);
//Debug.WriteLine(i);
}
var issuesGroup = IssueManager.GetIssuesBy(recursiveIssues, MainIssue.IssueType.Island)
.Where(issue => issue.PixelsCount <= RemoveIslandsBelowEqualPixelCount)
.GroupBy(issue => issue.LayerIndex);
if (!issuesGroup.Any()) break; // Nothing to process
islandsToRecompute.Clear();
Parallel.ForEach(issuesGroup, CoreSettings.GetParallelOptions(progress), group =>
{
var layer = SlicerFile[group.Key];
var image = layer.LayerMat;
var span = image.GetDataByteSpan();
foreach (IssueOfPoints issue in group)
{
foreach (var issuePixel in issue.Points)
{
span[image.GetPixelPos(issuePixel)] = 0;
}
progress.LockAndIncrement();
}
var nextLayerIndex = group.Key + 1;
if (nextLayerIndex < SlicerFile.LayerCount)
islandsToRecompute.Add(nextLayerIndex);
layer.LayerMat = image;
});
// Remove from main list due the replicate below repair
issues.RemoveAll(mainIssue => mainIssue.Type == MainIssue.IssueType.Island && mainIssue.Area <= RemoveIslandsBelowEqualPixelCount);
if (islandsToRecompute.IsEmpty) break; // No more leftovers
}
}
if (_repairIslands && _attachIslandsBelowLayers > 0)
{
var islandsToProcess = issues;
if (islandsToProcess.Count == 0)
{
var islandConfig = IslandDetectionConfig.Clone();
var overhangConfig = new OverhangDetectionConfiguration(false);
var touchingBoundsConfig = new TouchingBoundDetectionConfiguration(false);
var printHeightConfig = new PrintHeightDetectionConfiguration(false);
var resinTrapsConfig = new ResinTrapDetectionConfiguration(false);
var emptyLayersConfig = false;
islandConfig.Enabled = true;
islandsToProcess = SlicerFile.IssueManager.DetectIssues(islandConfig, overhangConfig, resinTrapsConfig, touchingBoundsConfig, printHeightConfig, emptyLayersConfig, progress);
islandsToProcess.RemoveAll(mainIssue => SlicerFile.IssueManager.IgnoredIssues.Contains(mainIssue));
}
var issuesGroup = IssueManager.GetIssuesBy(islandsToProcess, MainIssue.IssueType.Island).GroupBy(issue => issue.LayerIndex);
progress.Reset("Attempt to attach islands below", (uint) islandsToProcess.Count);
var sync = new object();
Parallel.ForEach(issuesGroup, CoreSettings.GetParallelOptions(progress), group =>
{
using var mat = SlicerFile[group.Key].LayerMat;
var matSpan = mat.GetDataByteSpan();
var matCache = new Dictionary<uint, Mat>();
var matCacheModified = new Dictionary<uint, bool>();
var startLayer = Math.Max(0, (int)group.Key - 2);
var lowestPossibleLayer = (uint)Math.Max(0, (int)group.Key - 1 - _attachIslandsBelowLayers);
for (var layerIndex = startLayer+1; layerIndex >= lowestPossibleLayer; layerIndex--)
{
//Debug.WriteLine(layerIndex);
Monitor.Enter(SlicerFile[layerIndex].Mutex);
matCache.Add((uint) layerIndex, SlicerFile[layerIndex].LayerMat);
matCacheModified.Add((uint) layerIndex, false);
}
foreach (IssueOfPoints issue in group)
{
int foundAt = startLayer == 0 ? 0 : - 1;
var requiredSupportingPixels = Math.Max(1, issue.PixelsCount * IslandDetectionConfig.RequiredPixelsToSupportMultiplier);
for (var layerIndex = startLayer; layerIndex >= lowestPossibleLayer && foundAt < 0; layerIndex--)
{
uint pixelsSupportingIsland = 0;
unsafe
{
var span = matCache[(uint) layerIndex].GetBytePointer();
foreach (var point in issue.Points)
{
if (span[mat.GetPixelPos(point)] < IslandDetectionConfig.RequiredPixelBrightnessToSupport)
continue;
pixelsSupportingIsland++;
if (pixelsSupportingIsland >= requiredSupportingPixels)
{
foundAt = layerIndex + 1;
break;
}
}
}
}
// Copy pixels
if (foundAt >= 0)
{
for (var layerIndex = startLayer + 1; layerIndex >= foundAt; layerIndex--)
{
matCacheModified[(uint) layerIndex] = true;
unsafe
{
var span = matCache[(uint) layerIndex].GetBytePointer();
foreach (var point in issue.Points)
{
var pos = mat.GetPixelPos(point);
span[pos] = (byte)Math.Min(span[pos] + matSpan[pos], byte.MaxValue);
}
}
}
lock (sync)
{
// Remove from processed issues
issues.Remove(issue.Parent!);
}
}
progress.LockAndIncrement();
}
foreach (var dict in matCache)
{
if (matCacheModified[dict.Key])
{
SlicerFile[dict.Key].LayerMat = dict.Value;
}
dict.Value.Dispose();
Monitor.Exit(SlicerFile[dict.Key].Mutex);
}
});
}
progress.Reset(ProgressAction, LayerRangeCount);
if (_repairIslands || _repairResinTraps)
{
Parallel.For(LayerIndexStart, LayerIndexEnd, CoreSettings.GetParallelOptions(progress), layerIndex =>
{
var layer = SlicerFile[layerIndex];
Mat? image = null;
void InitImage()
{
image ??= layer.LayerMat;
}
if (issues.Count > 0)
{
if (_repairIslands && _removeIslandsBelowEqualPixelCount > 0 && _removeIslandsRecursiveIterations == 1)
{
Span<byte> bytes = null;
foreach (IssueOfPoints issue in IssueManager.GetIssuesBy(issues, MainIssue.IssueType.Island, (uint)layerIndex))
{
if (issue.PixelsCount > _removeIslandsBelowEqualPixelCount) continue;
InitImage();
if (bytes == null) bytes = image!.GetDataByteSpan();
foreach (var issuePixel in issue.Points)
{
bytes[image!.GetPixelPos(issuePixel)] = 0;
}
}
}
if (_repairResinTraps)
{
foreach (IssueOfContours issue in IssueManager.GetIssuesBy(issues, MainIssue.IssueType.ResinTrap, (uint)layerIndex))
{
InitImage();
using var vec = new VectorOfVectorOfPoint(issue.Contours);
CvInvoke.DrawContours(image, vec, -1, EmguExtensions.WhiteColor, -1);
if (_resinTrapsOverlapBy > 0)
{
CvInvoke.DrawContours(image, vec, -1, EmguExtensions.WhiteColor, _resinTrapsOverlapBy * 2 + 1);
}
}
}
}
if (_repairIslands && (_gapClosingIterations > 0 || _noiseRemovalIterations > 0))
{
InitImage();
if (_gapClosingIterations > 0)
{
CvInvoke.MorphologyEx(image, image, MorphOp.Close, EmguExtensions.Kernel3x3Rectangle, EmguExtensions.AnchorCenter,
(int)_gapClosingIterations, BorderType.Default, default);
}
if (_noiseRemovalIterations > 0)
{
CvInvoke.MorphologyEx(image, image, MorphOp.Open, EmguExtensions.Kernel3x3Rectangle, EmguExtensions.AnchorCenter,
(int)_noiseRemovalIterations, BorderType.Default, default);
}
}
if (image is not null)
{
layer.LayerMat = image;
image.Dispose();
}
progress.LockAndIncrement();
});
}
if (_repairSuctionCups && issues.Count > 0)
{
SlicerFile.IssueManager.DrillSuctionCupsForIssues(issues.Where(mainIssue => mainIssue.Type == MainIssue.IssueType.SuctionCup), _suctionCupsVentHole, progress);
}
if (_removeEmptyLayers)
{
var removeLayers = new List<uint>();
for (var layerIndex = LayerIndexStart; layerIndex <= LayerIndexEnd; layerIndex++)
{
if (SlicerFile[layerIndex].NonZeroPixelCount == 0)
{
removeLayers.Add(layerIndex);
}
}
if (removeLayers.Count > 0)
{
OperationLayerRemove.RemoveLayers(SlicerFile, removeLayers, progress);
}
}
return !progress.Token.IsCancellationRequested;
}
#endregion
}
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