Text to image newb

tumba

21y2.8kGDI+

Hello! I've been reading all these articles about rotating, scaling and so on. Also about how to add comments to pics. My question is wheter it's possible to generate a image-file (jpg, gif or bmp for example) from text only. More precise: You put in some text in a Textbox, say "1/2", then I'd like to generate a picture with a fraction, with the numbers on top of eachother. (since my explanation might be a bit hard to get check this out: http://www.hargelid.se/mathprob.jpg This means i must parse the expression, put the "1" in a specified position, draw a line and put the "2" in another specified position. Is there any components doing this already? Any other suggestions are also welcome. The closest I've got is Soft4sciences MathML Renderer (http://www.soft4science.com/fr_index.html?/products/MathML_Renderer/s4s_MathML_Renderer.html) but I would very much like to skip the whole MathML-step. Maybe it's not possible, but maybe someone can tell me that =) Thanks in advance from a stuck one....

4 Replies

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Mykonine21y ago
If you meant instantiating a bitmap... Bitmap picture = new Bitmap(int width, int height); does the job, but make sure to call Bitmap.dispose() later on or you'll hit a memory leak.
Mykonine21y ago
Create a new FileStream using the filepath of the bitmap, then create a new Bitmap using the FileStream. Check the documentation for the different constructors (I don't remember the exact code).
omar_cplusplus21y ago
how can i load a bitmap file using GDI? and thank u.
jcity44421y ago
You'll need to parse the fraction and then using GDI+ to draw the fraction and save it to a jpeg. (You'll need the Graphics methods DrawString and DrawLine for example). Check out my Math Equation Editor Article here on C# Corner to get some ideas. Best Regards, -Mike G.

Text to image *newb*

Text to image newb