how to create chart

vipul_vgp · 07-06-2009, 07:04 AM

hi All,
I want to create .gif file of char from some stat, so i don't know how to make .gif file from C program and how to plot the graph. any one give me simple example of creating chart from C program.

**Salem** · 07-06-2009, 10:18 AM

Why GIF (archaic format)?
Why not PNG (more tools, more libraries - libpng Home Page)

You create a 'screen' consisting of a 2D array of pixels (aka bytes).
You 'draw' into the 'screen' whatever you want.
You then encode the result using say PNG to create a PNG file you can display in a browser, viewer etc.

07-06-2009, 07:04 AM	#1
vipul_vgp Registered User Join Date: Feb 2009 Location: India, Gujarat Posts: 22	how to create chart hi All, I want to create .gif file of char from some stat, so i don't know how to make .gif file from C program and how to plot the graph. any one give me simple example of creating chart from C program.
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07-06-2009, 10:18 AM	#2
Salem and the hat of vanishing Join Date: Aug 2001 Location: The edge of the known universe Posts: 21,214	Why GIF (archaic format)? Why not PNG (more tools, more libraries - libpng Home Page) You create a 'screen' consisting of a 2D array of pixels (aka bytes). You 'draw' into the 'screen' whatever you want. You then encode the result using say PNG to create a PNG file you can display in a browser, viewer etc. __________________ If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut. Up to 8Mb PlusNet broadband from only £5.99 a month!
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