DrawString與圖像中的輪廓

Question

如何繪製輪廓線？例如：字符串白色的純色，邊框是黑色的。我必須使用哪種方法來獲得這種效果？也許有人知道一些例子。

$swp_curr_dir = split-path -parent $MyInvocation.MyCommand.Definition 
[void][reflection.assembly]::loadwithpartialname("system.windows.forms") 

function AddTextToImage { 
    [CmdletBinding()] 
    Param(
     [Parameter(Mandatory=$true)][String] $sourcePath, 
     [Parameter(Mandatory=$true)][String] $destPath, 
     [Parameter(Mandatory=$true)][String] $Title 
    ) 

    Write-Verbose "Load System.Drawing" 
    [Reflection.Assembly]::LoadWithPartialName("System.Drawing") | Out-Null 

    $srcImg = [System.Drawing.Image]::FromFile($sourcePath) 

    $outputIImg = New-Object System.Drawing.Bitmap([int]($srcImg.width)),([int]($srcImg.height)) 

    $Image = [System.Drawing.Graphics]::FromImage($outputIImg) 
    $Image.SmoothingMode = "AntiAlias" 

    $img_rectangle = New-Object Drawing.Rectangle 0, 0, $srcImg.Width, $srcImg.Height 
    $Image.DrawImage($srcImg, $img_rectangle, 0, 0, $srcImg.Width, $srcImg.Height, ([Drawing.GraphicsUnit]::Pixel)) 

    $Font = New-Object System.Drawing.Font("Bauhaus 93", 200, "Bold","Pixel") 

    $rect = [System.Drawing.RectangleF]::FromLTRB(0, 0, $srcImg.Width, $srcImg.Height) 
    $format = [System.Drawing.StringFormat]::GenericDefault 
    $format.Alignment = [System.Drawing.StringAlignment]::Center 
    $format.LineAlignment = [System.Drawing.StringAlignment]::Center 

    $Brush = New-Object Drawing.SolidBrush([System.Drawing.Color]::FromArgb(255, 255, 255, 255)) 

    $Image.DrawString($Title, $Font, $Brush, $rect, $format) 

    $outputIImg.save($destPath, [System.Drawing.Imaging.ImageFormat]::jpeg) 
    $outputIImg.Dispose() 
    $srcImg.Dispose() 
} 

AddTextToImage -sourcePath ($swp_curr_dir + "\image.jpg") -destPath ($swp_curr_dir + "\output.jpg") -Title "Some title d ias hdiusahdiusahdias hdisahidu sad sad sa ad asd asd asd sad sad asd as long" 

cmd /c pause 

Answer 1

您可以使用路徑如下圖所示：

... 
$Image.DrawString($Title, $Font, $Brush, $rect, $format) 

$path = New-Object System.Drawing.Drawing2D.GraphicsPath 
$path.AddString($Title, $Font.FontFamily, $Font.Style, $Font.Size, $rect, $format) 
$Image.DrawPath([System.Drawing.Pens]::Black, $path) 

$outputIImg.save($destPath, [System.Drawing.Imaging.ImageFormat]::jpeg) 
...