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Image Manipulations (how to set legends)

P: n/a
Hi,

I need to set several legends to an bmp Image.
The legends must be set all around of the image (each 30 degrees).
I really need your help about this topic.
The best would be to get a vb solution :)

Stan

Nov 18 '05 #1
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P: n/a
Stan -

Here's an example. The one thing I think you'll need to play with is
the positioning of the point (last parameter of the DrawString
function). If you saved this as Image.aspx, you could display it on
another page with <img src="image.aspx?Legend=Sample">.

<%@ Page Language="VB" ContentType="image/jpeg" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Text" %>
<%@ Import Namespace="System.Drawing.Imaging" %>
<%@ Import Namespace="System.Drawing.Drawing2D" %>

<%
Response.Clear( )
Dim Legend as String

If Request.QueryString("Legend") = Nothing Then
Legend = ""
Else
Legend = Request.QueryString("Legend")
End If

Dim bmp as Bitmap = Image.FromFile("Input.bmp")
Dim g as Graphics = Graphics.FromImage(bmp)

g.RotateTransform(30);
g.DrawString(Legend, _
New Font("Arial", 12, FontStyle.italic), _
SystemBrushes.WindowText, New PointF(100,100))
g.ResetTransform();

bmp.Save(Response.OutputStream, ImageFormat.Jpeg)
g.Dispose( )
bmp.Dispose( )
Response.End( )

%>

References:
http://www.wwwcoder.com/main/Default...=407&site=1727
http://www.codeproject.com/aspnet/as...b_graphics.asp
http://www.syncfusion.com/FAQ/WinForms/FAQ_c3c.asp
http://www.bobpowell.net/faqmain.htm
- Jon
http://weblogs.asp.net/jgalloway

Nov 18 '05 #2

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