Question

我想编写一个接受字符串参数的函数＆＃34; TEXT＆＃34;和int参数为＆＃34; DEGREE＆＃34;并创建一个png图像写入＆＃34; TEXT＆＃34;用它旋转它＆＃34; DEGREE＆＃34;。

请任何人帮我写这个

感谢

编辑1）

我之前尝试过这个：

public System.Drawing.Bitmap WaterText(Bitmap MainImage,
                                           string Text,
                                           byte Alpha,
                                           byte Size,
                                           string FontName,
                                           string StringColor,
                                           byte MyStyle,
                                           byte MyPosision)
    {
        FontStyle Style;
        switch (MyStyle)
        {
            case 1:
                Style = FontStyle.Regular;
                break;
            case 2:
                Style = FontStyle.Bold;
                break;
            case 3:
                Style = FontStyle.Italic;
                break;
            case 4:
                Style = FontStyle.Underline;
                break;
            default:
                Style = FontStyle.Regular;
                break;
        }
        Florist.APPCode.Struct.TextPosision Posision;
        switch (MyPosision)
        {
            case 1:
                Posision = Florist.APPCode.Struct.TextPosision.Top;
                break;
            case 2:
                Posision = Florist.APPCode.Struct.TextPosision.Middle;
                break;
            case 3:
                Posision = Florist.APPCode.Struct.TextPosision.Bottom;
                break;
            default:
                Posision = Florist.APPCode.Struct.TextPosision.Bottom;
                break;
        }
        Graphics canvas = Graphics.FromImage(MainImage);
        Color Color = HexToColor(StringColor,Alpha);
        StringFormat strformat=new StringFormat();
        strformat.Alignment = StringAlignment.Center;
        switch (Posision)
        {
            case Florist.APPCode.Struct.TextPosision.Top:
                strformat.LineAlignment = StringAlignment.Near;
                break;
            case Florist.APPCode.Struct.TextPosision.Middle:
                //canvas.DrawString(Text, new Font(FontName, Size, Style), new SolidBrush(Color), 0, MainImage.Height/2);
                strformat.LineAlignment = StringAlignment.Center;
                break;
            case Florist.APPCode.Struct.TextPosision.Bottom:
                strformat.LineAlignment = StringAlignment.Far;
                break;
            default:
                strformat.LineAlignment = StringAlignment.Center;
                break;
        }

        canvas.DrawString(Text, new Font(FontName, Size,Style), new SolidBrush(Color),
                new RectangleF(0, 0, MainImage.Width, MainImage.Height), strformat);

        return MainImage;            
    }

但现在我要旋转文字

Answer 1

您可以查看following article，其中说明了绘制图形时如何旋转字符串。它使用RotateTransform方法。

Answer 2

在写出字符串之前，使用角度在Graphics对象上应用RotateTransform：

canvas.RotateTransform(angle);

如何使用文本和度数创建图像以旋转文本

2 个答案: