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简单画线算法

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艾竹
2023-05-15 22:57:13 +08:00
parent 19ba2736ab
commit 65e18759c9
2 changed files with 72 additions and 12 deletions
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31
AIStudio.Wpf.DiagramApp/ViewModels/DrawingViewModel.cs
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@@ -1,14 +1,9 @@
using System;
using System.Collections.Generic;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using AIStudio.Wpf.DiagramApp.Models;
using AIStudio.Wpf.DiagramDesigner;
using AIStudio.Wpf.DiagramDesigner.Additionals;
using AIStudio.Wpf.Mind.Models;
namespace AIStudio.Wpf.DiagramApp.ViewModels
{
@@ -96,16 +91,28 @@ namespace AIStudio.Wpf.DiagramApp.ViewModels
DiagramViewModel.Add(close);
DesignerItemViewModelBase heart = new SharpDrawingDesignerItemViewModel(DiagramViewModel, DrawMode.ErasableHeart, new List<Point> { new Point(138, 238), new Point(218, 318) }, true);
DiagramViewModel.Add(heart);
DiagramViewModel.Add(heart);
DesignerItemViewModelBase directLine = new DirectLineDrawingDesignerItemViewModel(DiagramViewModel, new List<Point> { new Point(238, 238), new Point(298, 258), new Point(258, 298), new Point(318, 318) }, true);
DiagramViewModel.Add(directLine);
DesignerItemViewModelBase polyline = new PolylineDrawingDesignerItemViewModel(DiagramViewModel, new List<Point> { new Point(338, 238), new Point(398, 258), new Point(358, 298), new Point(418, 318) }, true);
DesignerItemViewModelBase polyline = new PolylineDrawingDesignerItemViewModel(DiagramViewModel, new List<Point> { new Point(238, 238), new Point(298, 258), new Point(258, 298), new Point(318, 318) }, true);
DiagramViewModel.Add(polyline);
DesignerItemViewModelBase polygon = new PolygonDrawingDesignerItemViewModel(DiagramViewModel, new List<Point> { new Point(438, 238), new Point(498, 258), new Point(458, 298), new Point(518, 318) }, true);
DesignerItemViewModelBase polygon = new PolygonDrawingDesignerItemViewModel(DiagramViewModel, new List<Point> { new Point(338, 238), new Point(398, 258), new Point(358, 298), new Point(418, 318) }, true);
DiagramViewModel.Add(polygon);
//画正方形
var drawingPoint1 = DrawingHelper.GetPoints(new Point(38, 338), 0, Enumerable.Repeat(new System.Tuple<double, double>(80, 90), 4).ToList());
DesignerItemViewModelBase directLine1 = new DirectLineDrawingDesignerItemViewModel(DiagramViewModel, drawingPoint1, true);
DiagramViewModel.Add(directLine1);
//画三角形
var drawingPoint2 = DrawingHelper.GetPoints(new Point(138, 338), 0, Enumerable.Repeat(new System.Tuple<double, double>(80, 120), 3).ToList());
DesignerItemViewModelBase directLine2 = new DirectLineDrawingDesignerItemViewModel(DiagramViewModel, drawingPoint2, true);
DiagramViewModel.Add(directLine2);
//画五边形
var drawingPoint3 = DrawingHelper.GetPoints(new Point(238, 338), 0, Enumerable.Repeat(new System.Tuple<double, double>(100, 72), 5).ToList());
DesignerItemViewModelBase directLine3 = new DirectLineDrawingDesignerItemViewModel(DiagramViewModel, drawingPoint3, true);
DiagramViewModel.Add(directLine3);
}
public override void Dispose()

53
AIStudio.Wpf.DiagramDesigner/Helpers/DrawingHelper.cs Normal file
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@@ -0,0 +1,53 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
namespace AIStudio.Wpf.DiagramDesigner
{
public static class DrawingHelper
{
public static List<Point> GetPoints(Point startPoint, double angle, List<Tuple<double, double>> angleAndWidth)
{
List<Point> points = new List<Point>();
points.Add(startPoint);
Point thisPoint= startPoint;
double thisAngle = angle;
Point nextPoint;
foreach (var item in angleAndWidth)
{
nextPoint = GetEndPointByTrigonometric(thisPoint, thisAngle, item.Item1);
points.Add((Point)nextPoint);
thisPoint = nextPoint;
thisAngle = thisAngle + item.Item2;
}
return points;
}
/// <summary>
/// 通过三角函数求终点坐标
/// </summary>
/// <param name="angle">角度</param>
/// <param name="startPoint">起点</param>
/// <param name="distance">距离</param>
/// <returns>终点坐标</returns>
public static Point GetEndPointByTrigonometric(Point startPoint, double angle, double distance)
{
//角度转弧度
var radian = (angle * Math.PI) / 180;
//计算新坐标 r 就是两者的距离
Point endPoint = new Point(startPoint.X + distance * Math.Cos(radian), startPoint.Y + distance * Math.Sin(radian));
return endPoint;
}
}
}