[英]Outline text with System.Drawing?
我有以下代碼。 有沒有一種簡單的方法來概述我正在寫的文字?
var imageEncoder = Encoder.Quality;
var imageEncoderParameters = new EncoderParameters(1);
imageEncoderParameters.Param[0] = new EncoderParameter(imageEncoder, 100L);
var productImage = GetImageFromByteArray(myViewModel.ProductImage.DatabaseFile.FileContents);
var graphics = Graphics.FromImage(productImage);
var font = new Font("Segoe Script", 24);
var brush = Brushes.Orange;
var container = new Rectangle(myViewModel.ContainerX, myViewModel.ContainerY, myViewModel.ContainerWidth, myViewModel.ContainerHeight);
var stringFormat = new StringFormat {Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center};
graphics.DrawString(customizationText, font, brush, container, stringFormat);
是。 而不是DrawString,使用以下調用序列:
new GraphicsPath
(創建一個空的GraphicsPath
) GraphicsPath.AddString
( GraphicsPath
對象現在代表文本的輪廓) Graphics.DrawPath
(在你想要的任何Pen
繪制輪廓) 如果你需要使用GraphicsPath.AddString
和Graphics.DrawString
,你需要轉換字體大小,因為Graphics.DrawString
需要“點大小”,而GraphicsPath.AddString
需要“em大小”。 轉換公式只是emSize = g.DpiY * pointSize / 72
。
這是一個代碼示例:
// assuming g is the Graphics object on which you want to draw the text
GraphicsPath p = new GraphicsPath();
p.AddString(
"My Text String", // text to draw
FontFamily.GenericSansSerif, // or any other font family
(int) FontStyle.Regular, // font style (bold, italic, etc.)
g.DpiY * fontSize / 72, // em size
new Point(0, 0), // location where to draw text
new StringFormat()); // set options here (e.g. center alignment)
g.DrawPath(Pens.Black, p);
// + g.FillPath if you want it filled as well
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