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Add triangulation of polygon

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This commit is contained in:
Evgeny Redikultsev
2025-10-26 22:19:25 +05:00
parent 196dc636bb
commit 09dcf4e7e9
52 changed files with 686 additions and 180 deletions
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16
FieldVisualizer/Entities/Values/Primitives/ITrianglePrimitive.cs Normal file
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@@ -0,0 +1,16 @@
using StructureHelperCommon.Models.Shapes;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace FieldVisualizer.Entities.Values.Primitives
{
public interface ITrianglePrimitive : IValuePrimitive
{
IPoint2D Point1 { get; set; }
IPoint2D Point2 { get; set; }
IPoint2D Point3 { get; set; }
}
}

31
FieldVisualizer/Entities/Values/Primitives/TrianglePrimitive.cs Normal file
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@@ -0,0 +1,31 @@
using StructureHelperCommon.Models.Shapes;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace FieldVisualizer.Entities.Values.Primitives
{
public class TrianglePrimitive : ITrianglePrimitive
{
public double Value { get; set; }
public IPoint2D Point1 { get; set; }
public IPoint2D Point2 { get; set; }
public IPoint2D Point3 { get; set; }
// --- Computed properties ---
// Centroid (geometric center)
public double CenterX => (Point1.X + Point2.X + Point3.X) / 3.0;
public double CenterY => (Point1.Y + Point2.Y + Point3.Y) / 3.0;
// Triangle area using determinant formula
public double Area =>
0.5 * Math.Abs(
(Point2.X - Point1.X) * (Point3.Y - Point1.Y) -
(Point3.X - Point1.X) * (Point2.Y - Point1.Y)
);
}
}

20
FieldVisualizer/Services/PrimitiveServices/PrimitiveOperations.cs
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@@ -53,19 +53,23 @@ namespace FieldVisualizer.Services.PrimitiveServices
List<double> coords = new List<double>();
foreach (var primitive in valuePrimitives)
{
if (primitive is IRectanglePrimitive)
if (primitive is IRectanglePrimitive rectanglePrimitive)
{
IRectanglePrimitive rectanglePrimitive = primitive as IRectanglePrimitive;
coords.Add(rectanglePrimitive.CenterX + rectanglePrimitive.Width / 2);
coords.Add(rectanglePrimitive.CenterX - rectanglePrimitive.Width / 2);
}
else if (primitive is ICirclePrimitive)
else if (primitive is ICirclePrimitive circlePrimitive)
{
ICirclePrimitive circlePrimitive = primitive as ICirclePrimitive;
coords.Add(circlePrimitive.CenterX + circlePrimitive.Diameter / 2);
coords.Add(circlePrimitive.CenterX - circlePrimitive.Diameter / 2);
}
else { throw new FieldVisulizerException(ErrorStrings.PrimitiveTypeIsUnknown);}
else if (primitive is ITrianglePrimitive triangle)
{
coords.Add(triangle.Point1.X);
coords.Add(triangle.Point2.X);
coords.Add(triangle.Point3.X);
}
else { throw new FieldVisulizerException(ErrorStrings.PrimitiveTypeIsUnknown); }
}
return coords;
}
@@ -87,6 +91,12 @@ namespace FieldVisualizer.Services.PrimitiveServices
coords.Add(circlePrimitive.CenterY + circlePrimitive.Diameter / 2);
coords.Add(circlePrimitive.CenterY - circlePrimitive.Diameter / 2);
}
else if (primitive is ITrianglePrimitive triangle)
{
coords.Add(triangle.Point1.Y);
coords.Add(triangle.Point2.Y);
coords.Add(triangle.Point3.Y);
}
else { throw new FieldVisulizerException(ErrorStrings.PrimitiveTypeIsUnknown); }
}
return coords;

76
FieldVisualizer/ViewModels/FieldViewerViewModels/FieldViewerViewModel.cs
View File

@@ -14,7 +14,9 @@ using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Shapes;
@@ -50,20 +52,20 @@ namespace FieldVisualizer.ViewModels.FieldViewerViewModels
set
{
primitiveSet = value;
OnPropertyChanged(nameof(PrimitiveSet));
AreaTotal = primitiveSet is null ? 0 : primitiveSet.ValuePrimitives.Sum(x => x.Area);
OnPropertyChanged(nameof(AreaTotal));
AreaNeg = primitiveSet is null ? 0 : primitiveSet.ValuePrimitives.Where(x => x.Value < 0d).Sum(x => x.Area);
OnPropertyChanged(nameof(AreaNeg));
AreaZero = primitiveSet is null ? 0 : primitiveSet.ValuePrimitives.Where(x => x.Value == 0d).Sum(x => x.Area);
OnPropertyChanged(nameof(AreaZero));
AreaPos = primitiveSet is null ? 0 : primitiveSet.ValuePrimitives.Where(x => x.Value > 0d).Sum(x => x.Area);
OnPropertyChanged(nameof(AreaPos));
SumTotal = primitiveSet is null ? 0 : primitiveSet.ValuePrimitives.Sum(x => x.Value);
OnPropertyChanged(nameof(SumTotal));
SumNeg = primitiveSet is null ? 0 : primitiveSet.ValuePrimitives.Where(x => x.Value < 0d).Sum(x => x.Value);
OnPropertyChanged(nameof(SumNeg));
SumPos = primitiveSet is null ? 0 : primitiveSet.ValuePrimitives.Where(x => x.Value > 0d).Sum(x => x.Value);
OnPropertyChanged(nameof(PrimitiveSet));
OnPropertyChanged(nameof(AreaTotal));
OnPropertyChanged(nameof(AreaNeg));
OnPropertyChanged(nameof(AreaZero));
OnPropertyChanged(nameof(AreaPos));
OnPropertyChanged(nameof(SumTotal));
OnPropertyChanged(nameof(SumNeg));
OnPropertyChanged(nameof(SumPos));
}
@@ -215,21 +217,56 @@ namespace FieldVisualizer.ViewModels.FieldViewerViewModels
WorkPlaneBox.Height = ScrolHeight - 50;
foreach (var primitive in PrimitiveSet.ValuePrimitives)
{
if (primitive is IRectanglePrimitive)
if (primitive is IRectanglePrimitive rectanglePrimitive)
{
IRectanglePrimitive rectanglePrimitive = primitive as IRectanglePrimitive;
Rectangle rectangle = ProcessRectanglePrimitive(rectanglePrimitive);
WorkPlaneCanvas.Children.Add(rectangle);
}
else if (primitive is ICirclePrimitive)
else if (primitive is ICirclePrimitive circlePrimitive)
{
ICirclePrimitive circlePrimitive = primitive as ICirclePrimitive;
Ellipse ellipse = ProcessCirclePrimitive(circlePrimitive);
WorkPlaneCanvas.Children.Add(ellipse);
}
else if (primitive is ITrianglePrimitive triangle)
{
Path path = ProcessTrianglePrimitive(triangle);
WorkPlaneCanvas.Children.Add(path);
}
else { throw new FieldVisulizerException(ErrorStrings.PrimitiveTypeIsUnknown); }
}
}
private Path ProcessTrianglePrimitive(ITrianglePrimitive triangle)
{
// Create the PathFigure using triangle vertices.
var figure = new PathFigure
{
StartPoint = new Point(triangle.Point1.X, triangle.Point1.Y),
IsClosed = true,
IsFilled = true
};
// Add the remaining vertices as LineSegments
var segments = new PathSegmentCollection
{
new LineSegment(new Point(triangle.Point2.X, triangle.Point2.Y), true),
new LineSegment(new Point(triangle.Point3.X, triangle.Point3.Y), true)
// Closing is handled by IsClosed = true, so we don't need to add a segment back to Point1
};
figure.Segments = segments;
// Create geometry and path
var geometry = new PathGeometry();
geometry.Figures.Add(figure);
var path = new Path
{
Data = geometry,
};
ProcessShape(path, triangle, 0, 0, false);
return path;
}
private Rectangle ProcessRectanglePrimitive(IRectanglePrimitive rectanglePrimitive)
{
Rectangle rectangle = new Rectangle
@@ -239,7 +276,7 @@ namespace FieldVisualizer.ViewModels.FieldViewerViewModels
};
double addX = rectanglePrimitive.Width / 2;
double addY = rectanglePrimitive.Height / 2;
ProcessShape(rectangle, rectanglePrimitive, addX, addY);
ProcessShape(rectangle, rectanglePrimitive, addX, addY, true);
return rectangle;
}
private Ellipse ProcessCirclePrimitive(ICirclePrimitive circlePrimitive)
@@ -252,10 +289,10 @@ namespace FieldVisualizer.ViewModels.FieldViewerViewModels
double addX = circlePrimitive.Diameter / 2;
double addY = circlePrimitive.Diameter / 2;
ProcessShape(ellipse, circlePrimitive, addX, addY);
ProcessShape(ellipse, circlePrimitive, addX, addY, true);
return ellipse;
}
private void ProcessShape(Shape shape, IValuePrimitive valuePrimitive, double addX, double addY)
private void ProcessShape(Shape shape, IValuePrimitive valuePrimitive, double addX, double addY, bool addCenter)
{
SolidColorBrush brush = new SolidColorBrush();
brush.Color = ColorOperations.GetColorByValue(valueRange, _ColorMap, valuePrimitive.Value);
@@ -269,8 +306,15 @@ namespace FieldVisualizer.ViewModels.FieldViewerViewModels
shape.ToolTip = roundLogic.RoundValue(valuePrimitive.Value);
shape.Tag = valuePrimitive;
shape.Fill = brush;
Canvas.SetLeft(shape, valuePrimitive.CenterX - addX - dX);
Canvas.SetTop(shape, -valuePrimitive.CenterY - addY + dY);
double addLeft = - addX - dX;
double addTop = - addY + dY;
if (addCenter == true)
{
addLeft += valuePrimitive.CenterX;
addTop -= valuePrimitive.CenterY;
}
Canvas.SetLeft(shape, addLeft);
Canvas.SetTop(shape, addTop);
}
private void Zoom(double coefficient)
{