|
[Date Index]
[Thread Index]
[Author Index]
Re: Mathematica Graphics output in an ASP.NET WebApplication
- To: mathgroup at smc.vnet.net
- Subject: [mg53542] Re: Mathematica Graphics output in an ASP.NET WebApplication
- From: "Hans Michel" <hmichel at sdc.cox.net>
- Date: Sun, 16 Jan 2005 22:23:59 -0500 (EST)
- References: <cs5beb$3tt$1@smc.vnet.net> <cs8l5d$emt$1@smc.vnet.net>
- Reply-to: "Hans Michel" <hmichel at sdc.cox.net>
- Sender: owner-wri-mathgroup at wolfram.com
Javier:
Please see this previous thread from the newsgroup.
[mg48059] Re: [mg48016] how to save a mathematica-made imagebox.image as
jpg, gif, bmp in c#/.netlink?
Todd Gayley give a good explanation why this error happens.
I have been using the work around for some time. Point the Image to a new
Image (Bitmap) object.
Hans
"Javier Chicote" <goraperas at hotmail.com> wrote in message
news:cs8l5d$emt$1 at smc.vnet.net...
> Hello Hans,
>
> Thank you very much for your response, now I can see the image in my
> application, although I still have a problem:
>
> I would like the use the "mathKernel.Compute" and "mathKernel.Graphics"
> methods in my application, but I must use the
> "mathKernel.Link.EvaluateToImage" method to see the image. Do you know why
> does [#1] work and [#2] doesn't in the following code?? As far as I know,
> both EvaluateToImage and mathKernel.Graphic[0] methods return an
> System.Drawing.Image object.
>
> private void Page_Load(object sender, System.EventArgs e)
> {
> mathKernel = new Wolfram.NETLink.MathKernel();
> string path = "C:/Archivos de programa/Wolfram
> Research/Mathematica/5.0/mathkernel.exe";
> mathKernel.LinkArguments = "-linkmode launch -linkname \"" + path +
> "\"";
> mathKernel.Connect();
> mathKernel.GraphicsHeight=200;
> mathKernel.GraphicsWidth=200;
> string input = "Plot3D[Sin[x y], {x, -Pi, Pi}, {y, 0 ,10}]";
>
> // #1 This works OK :)
> System.Drawing.Image img =
> mathKernel.Link.EvaluateToImage(input,200,200);
>
> // #2 This does NOT work :(
> // mathKernel.Compute(input);
> // System.Drawing.Image img = mathKernel.Graphics[0];
>
> img.Save(Response.OutputStream, ImageFormat.Jpeg);
> mathKernel.Dispose();
> }
>
> Regards,
>
> Javier
>
>
> <hmichel at cox.net> escribió en el mensaje news:cs5beb$3tt$1 at smc.vnet.net...
>> Javier Chicote
>>
>> You are streaming a jpeg image to the image element with src attribute
>> url
> Webform2.aspx in WebForm1.aspx page.
>>
>> The image you stream must be for lack of a better term well formed. Now
>> if
> you were to take a jpeg image and add html text tag or any extraneous
> characters to that file most programs may not know how to render it. This
> is
> what is happening on WebForm2.aspx. You have extraneous characters.
>>
>> Remove the DOCTYPE Declaration. No HTML or anything except for the page
> directive. Response stream must be neat.
>>
>> Just
>> "<%@ Page lan .... %>"
>>
>> WebForm2
>> ============================================================
>>
>> <%@ Page language="c#" Codebehind="WebForm2.aspx.cs"
> AutoEventWireup="false"
>> Inherits="mathGraph.WebForm2" EnableSessionState="False"
>> enableViewState="False" contentType="image/jpeg"%>
>> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
>>
>> Remove the preceding document type declaration
>> Hans
>>
>
>
Prev by Date:
Re: Prime[..] slows down
Next by Date:
Re: Re: importing mat format doesn't import variable names
Previous by thread:
Re: Mathematica Graphics output in an ASP.NET WebApplication
Next by thread:
Re: Mathematica Graphics output in an ASP.NET WebApplication
|
