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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 System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
using System.Threading.Tasks;
using Emgu.CV;
using Emgu.CV.CvEnum;
using Emgu.CV.Structure;
using UVtools.Core.Extensions;
using UVtools.Core.FileFormats;
namespace UVtools.Core.Operations
{
[Serializable]
public sealed class OperationLayerReHeight : Operation
{
#region Enums
public enum OperationLayerReHeightAntiAliasingType : byte
{
//[Description("Hello")]
None,
[Description("Difference - Compute anti-aliasing by the layers difference and perform a down/up sample over pixels")]
Difference,
[Description("Average - Compute anti-aliasing by averaging the layers pixels")]
Average
}
#endregion
#region Members
private OperationLayerReHeightItem _selectedItem;
private OperationLayerReHeightAntiAliasingType _antiAliasingType;
#endregion
#region Overrides
public override Enumerations.LayerRangeSelection StartLayerRangeSelection => Enumerations.LayerRangeSelection.None;
public override bool CanROI => false;
public override string Title => "Adjust layer height";
public override string Description =>
"Adjust the layer height of the model.\n\n" +
"Adjusting to values lower than current height will reduce layer lines, adjusting to values higher" +
" than current height will reduce model detail.\n\n" +
"Note: Using dedicated slicer software to re-slice will usually yeild better results.";
public override string ConfirmationText =>
$"adjust layer height to {SelectedItem.LayerHeight}mm?";
public override string ProgressTitle =>
$"Adjusting layer height to {SelectedItem.LayerHeight}mm";
public override string ProgressAction => "Height adjusted layers";
public override bool CanHaveProfiles => false;
public override string ValidateInternally()
{
var sb = new StringBuilder();
if (SelectedItem is null)
{
sb.AppendLine("No valid configurations, unable to proceed.");
}
return sb.ToString();
}
public override string ToString()
{
var result = $"[Layer Count: {SelectedItem.LayerCount}] [Layer Height: {SelectedItem.LayerHeight}]" + LayerRangeString;
if (!string.IsNullOrEmpty(ProfileName)) result = $"{ProfileName}: {result}";
return result;
}
#endregion
#region Properties
public OperationLayerReHeightItem[] Presets { get; set; }
public OperationLayerReHeightItem SelectedItem
{
get => _selectedItem;
set
{
if(!RaiseAndSetIfChanged(ref _selectedItem, value)) return;
RaisePropertyChanged(nameof(CanAntiAliasing));
}
}
public bool CanAntiAliasing => _selectedItem?.IsMultiply ?? false;
public OperationLayerReHeightAntiAliasingType AntiAliasingType
{
get => _antiAliasingType;
set => RaiseAndSetIfChanged(ref _antiAliasingType, value);
}
public static OperationLayerReHeightItem[] GetItems(uint layerCount, decimal layerHeight)
{
var list = new List<OperationLayerReHeightItem>();
for (byte i = 2; i < 255; i++) // Go lower heights
{
if (layerHeight / i < Layer.MinimumHeight) break;
if ((layerCount * (decimal)i).DecimalDigits() > 0) continue; // Cant multiply layers, no half layers!
if ((layerHeight / i).DecimalDigits() > Layer.HeightPrecision) continue; // Cant divide height, more than 3 digits
var item = new OperationLayerReHeightItem(false, i, Layer.RoundHeight(layerHeight / i), layerCount * i);
list.Add(item);
}
for (byte i = 2; i < 255; i++) // Go higher heights
{
if (layerHeight * i > Layer.MaximumHeight) break;
if ((layerCount / (decimal)i).DecimalDigits() > 0) continue; // Cant divide layers, no half layers!
if ((layerHeight * i).DecimalDigits() > Layer.HeightPrecision) continue; // Cant multiply height, more than 3 digits
var item = new OperationLayerReHeightItem(true, i, Layer.RoundHeight(layerHeight * i), layerCount / i);
list.Add(item);
}
return list.ToArray();
}
#endregion
#region Constructor
public OperationLayerReHeight() { }
public OperationLayerReHeight(FileFormat slicerFile) : base(slicerFile)
{ }
public override void InitWithSlicerFile()
{
base.InitWithSlicerFile();
Presets = GetItems(SlicerFile.LayerCount, (decimal)SlicerFile.LayerHeight);
if (Presets is not null && Presets.Length > 0)
{
_selectedItem = Presets[0];
}
}
#endregion
#region Subclasses
public class OperationLayerReHeightItem
{
public bool IsMultiply { get; }
public bool IsDivision => !IsMultiply;
public byte Modifier { get; }
public decimal LayerHeight { get; }
public uint LayerCount { get; }
public OperationLayerReHeightItem(bool isMultiply, byte modifier, decimal layerHeight, uint layerCount)
{
IsMultiply = isMultiply;
Modifier = modifier;
LayerHeight = layerHeight;
LayerCount = layerCount;
}
public override string ToString()
{
return (IsMultiply ? 'x' : '÷') + $" {Modifier} → {LayerCount} layers at {LayerHeight}mm";
}
}
#endregion
#region Methods
protected override bool ExecuteInternally(OperationProgress progress)
{
progress.ItemCount = _selectedItem.LayerCount;
var layers = new Layer[_selectedItem.LayerCount];
if (_selectedItem.IsDivision)
{
uint newLayerIndex = 0;
for (uint layerIndex = 0; layerIndex < SlicerFile.LayerCount; layerIndex++)
{
progress.Token.ThrowIfCancellationRequested();
var oldLayer = SlicerFile[layerIndex];
for (byte i = 0; i < _selectedItem.Modifier; i++)
{
var newLayer = oldLayer.Clone();
//newLayer.Index = newLayerIndex;
//newLayer.PositionZ = (float)(Item.LayerHeight * (newLayerIndex + 1));
layers[newLayerIndex] = newLayer;
newLayerIndex++;
progress++;
}
}
}
else
{
var layerIndexes = new uint[SlicerFile.LayerCount / _selectedItem.Modifier];
for (uint i = 0; i < layerIndexes.Length; i++)
{
layerIndexes[i] = i * _selectedItem.Modifier;
}
Parallel.ForEach(layerIndexes, layerIndex =>
{
if (progress.Token.IsCancellationRequested) return;
var oldLayer = SlicerFile[layerIndex];
using var matSum = oldLayer.LayerMat;
Mat matXorSum = null;
using Mat aaAverageSum = new();
if (_antiAliasingType == OperationLayerReHeightAntiAliasingType.Average)
{
matSum.ConvertTo(aaAverageSum, DepthType.Cv16U);
}
for (byte i = 1; i < SelectedItem.Modifier; i++)
{
using var nextMat = SlicerFile[layerIndex+i].LayerMat;
switch (_antiAliasingType)
{
case OperationLayerReHeightAntiAliasingType.None:
CvInvoke.Add(matSum, nextMat, matSum);
break;
case OperationLayerReHeightAntiAliasingType.Difference:
{
using var previousMat = SlicerFile[layerIndex + i - 1].LayerMat;
var matXor = new Mat();
//CvInvoke.Threshold(previousMat, previousMat, 127, 255, ThresholdType.Binary);
//CvInvoke.Threshold(nextMat, nextMat, 127, 255, ThresholdType.Binary);
CvInvoke.BitwiseXor(previousMat, nextMat, matXor);
matXor.SetTo(new MCvScalar((byte)(byte.MaxValue / _selectedItem.Modifier)), matXor);
if (matXorSum is null)
{
matXorSum = matXor.Clone();
}
else
{
CvInvoke.Add(matXorSum, matXorSum, matXorSum);
CvInvoke.Add(matXorSum, matXor, matXorSum);
}
break;
}
case OperationLayerReHeightAntiAliasingType.Average:
nextMat.ConvertTo(nextMat, DepthType.Cv16U);
CvInvoke.Add(aaAverageSum, nextMat, aaAverageSum);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
switch (_antiAliasingType)
{
case OperationLayerReHeightAntiAliasingType.Difference:
CvInvoke.Add(matSum, matXorSum, matSum);
CvInvoke.PyrDown(matSum, matSum);
CvInvoke.PyrUp(matSum, matSum);
matXorSum.Dispose();
break;
case OperationLayerReHeightAntiAliasingType.Average:
aaAverageSum.ConvertTo(matSum, DepthType.Cv8U, 1.0 / _selectedItem.Modifier);
CvInvoke.PyrDown(matSum, matSum);
CvInvoke.PyrUp(matSum, matSum);
break;
}
var newLayer = oldLayer.Clone();
//newLayer.Index = newLayerIndex;
//newLayer.PositionZ = (float)(Item.LayerHeight * (newLayerIndex + 1));
newLayer.LayerMat = matSum;
layers[layerIndex / _selectedItem.Modifier] = newLayer;
progress.LockAndIncrement();
});
}
progress.Token.ThrowIfCancellationRequested();
SlicerFile.LayerHeight = (float)SelectedItem.LayerHeight;
SlicerFile.LayerManager.Layers = layers;
return !progress.Token.IsCancellationRequested;
}
#endregion
}
}
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