formtransformexample.cs

来自「csharp课本的源代码」· CS 代码 · 共 42 行

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace TransformExample
{
    public partial class FormTransformExample : Form
    {
        public FormTransformExample()
        {
            InitializeComponent();
        }

        private void FormTransformExample_Paint(object sender, PaintEventArgs e)
        {
            Graphics g = e.Graphics;
            g.TranslateTransform(110, 120);
            for (float angle = 0; angle < 360; angle += 45)
            {
                g.RotateTransform(angle);
                g.FillEllipse(new SolidBrush(Color.FromArgb(80, Color.Blue)), 0, 0, 20, 80);
            }
            g.TranslateTransform(-200.0f, 0.0f);
            for (float angle = 0; angle < 360; angle += 45)
            {
                g.RotateTransform(angle);
                g.FillEllipse(new SolidBrush(Color.FromArgb(80, Color.Blue)), 0, 0, 20, 80);
            }
            g.TranslateTransform(200.0f, 0.0f);
            g.ScaleTransform(0.5f, 0.5f);
            for (float angle = 0; angle < 360; angle += 45)
            {
                g.RotateTransform(angle);
                g.FillEllipse(new SolidBrush(Color.FromArgb(80, Color.Blue)), 0, 0, 20, 80);
            }
        }
    }
}