drawingutilities.cs

K-Means C++实现 带演示程序 K-Means C++实现 带演示程序

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using System.Windows.Forms;

namespace SimpleKMeans
{
    class DrawingUtilities
    {
        public static void DrawRulers(Control x, Control y, Color color)
        {
            DrawXRuler(x,color);
            DrawYRuler(y,color);
        }

        public static void DrawXRuler(Control c, Color color)
        {
            using (Graphics g = c.CreateGraphics())
            {
                for (int i = 0; i <= c.Width; i += 5)
                {
                    #region 绘制横向标尺
                    if (i % 25 != 0 && i % 50 != 0)
                    {
                        g.DrawLine(new Pen(new SolidBrush(color), 1), new Point(i, 0), new Point(i, 4));
                    }

                    if (i % 25 == 0 && i % 50 != 0)
                    {
                        g.DrawLine(new Pen(new SolidBrush(color), 1), new Point(i, 0), new Point(i, 7));
                    }

                    if (i % 50 == 0)
                    {
                        Font font = new Font("Tahoma", 8, FontStyle.Regular);
                        g.DrawLine(new Pen(new SolidBrush(color), 1), new Point(i, 0), new Point(i, 9));
                        g.DrawString(i.ToString(), font, new SolidBrush(color), i-10, 10);
                    } 
                    #endregion
                }
                
            }
        }

        public static void DrawYRuler(Control c, Color color)
        {
            using (Graphics g = c.CreateGraphics())
            {
                for (int i = 0; i <= c.Height; i += 5)
                {
                    #region 绘制纵向标尺
                    if (i % 25 != 0 && i % 50 != 0)
                    {
                        g.DrawLine(new Pen(new SolidBrush(color), 1), new Point(0, i), new Point(4, i));
                    }

                    if (i % 25 == 0 && i % 50 != 0)
                    {
                        g.DrawLine(new Pen(new SolidBrush(color), 1), new Point(0, i), new Point(7, i));
                    }

                    if (i % 50 == 0)
                    {
                        Font font = new Font("Tahoma", 8, FontStyle.Regular);

                        StringFormat s = new StringFormat();
                        s.FormatFlags = StringFormatFlags.DirectionVertical;
                        s.Alignment = StringAlignment.Center;

                        g.DrawLine(new Pen(new SolidBrush(color), 1), new Point(0, i), new Point(9, i));
                        g.DrawString(i.ToString(), font, new SolidBrush(color), 10, i,s);
                    }
                    #endregion
                }
            }
        }

        public static void DrawDot(Control c, int x, int y, Color color)
        {
            using (Graphics g = c.CreateGraphics())
            {
                g.DrawEllipse(new Pen(new SolidBrush(color), 1), x + 10, y - 10, 4, 4);
            }
        }

        public static void DrawCross(Control c, int x, int y, Color color)
        {
            using (Graphics g = c.CreateGraphics())
            {
                g.DrawLine(new Pen(new SolidBrush(color), 2), new Point(x, y), new Point(x + 6, y));
                g.DrawLine(new Pen(new SolidBrush(color), 2), new Point(x, y), new Point(x - 6, y));
                g.DrawLine(new Pen(new SolidBrush(color), 2), new Point(x, y), new Point(x, y + 6));
                g.DrawLine(new Pen(new SolidBrush(color), 2), new Point(x, y), new Point(x, y - 6));

                g.DrawEllipse(new Pen(new SolidBrush(color), 1), x - 6, y - 6, 12, 12);
            }
        }
    }
}