你好,如何用位图画一个圆。也就是说,我需要获取圆的图像,用它来画一些东西。
最佳答案
为此目的使用ColorTranslator.FromHtml
。
这将为您提供相应的System.Drawing.Color
:
using (Bitmap btm = new Bitmap(25, 30))
{
using (Graphics grf = Graphics.FromImage(btm))
{
using (Brush brsh = new SolidBrush(ColorTranslator.FromHtml("#ff00ffff")))
{
grf.FillEllipse(brsh, 0, 0, 19, 19);
}
}
}
或引用代码:
Bitmap bmp = new Bitmap(pictureBox1.Width, pictureBox1.Height);
Graphics g = Graphics.FromImage(bmp);
Pen blackPen = new Pen(Color.Black);
int x = pictureBox1.Width/4;
int y = pictureBox1.Height/4;
int width = pictureBox1.Width / 2;
int height = pictureBox1.Height / 2;
int diameter = Math.Min(width, height);
g.DrawEllipse(blackPen, x, y, diameter, diameter);
pictureBox1.Image = bmp;
If the PictureBox already contains a bitmap, replace the first and second lines with:
Graphics g = Graphics.FromImage(pictureBox1.Image);
引用链接:
http://www.c-sharpcorner.com/Forums/Thread/30986/
希望它有帮助。
关于c# - 如何用位图C#创建圆,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/16727802/