用十进制数据在C＃中创建图像或图形？

Question

Is it possible to create an image or graphic using vector data that has decimal components that vary? And, of course, if its possible... then how?

For example: a vector has two points where point one is {9.56, 4.1} and point two is {3.456789,2.12345}.

Note: the precision varies from number to number.

Answer 1

You can draw vectors to a bitmap and then save that bitmap as follows.

using System.Drawing;
using System.Drawing.Imaging;
.
.  
.
using (Bitmap bmp = new Bitmap(10, 10))
{
    using (Graphics g = Graphics.FromImage(bmp))
    {
        g.Clear(Color.White);
        g.DrawLine(Pens.Black, new PointF(9.56f, 4.1f), new PointF(3.456789f, 2.12345f));
    }
    bmp.Save(@"c:\myimage.jpg", ImageFormat.Jpeg);
}

Answer 2

Oh, sure. For example, the Line class will draw a line in WPF. It uses two doubles for each coordinate. X1, Y1 and X2, Y2.

If your data is stored in the decimal datatype, you can do a simple cast.

Keep in mind, I'm trying to extrapolate what you're trying to do from your question. How are you planning to draw your vector shapes? What's your overall approach?