C function for plotting a pixel in Linux ( like putpixel of bgi)?

chandan · 01-23-2004, 05:15 AM

I have to develop a graphics package as part of my curriculum by implementing various algorithms.
I started of in dos using the bgi library of borland C.
I am using putpixel to plot a point on the screen.
Now i want to code in Linux, but not able to get an equivalent of putpixel in Linux.
Please suggest me the library and the function to do the same.
I am coding in C++.

llama_meme · 01-23-2004, 05:36 AM

There's lots of different ways to do graphics in Linux. You can either use a GUI toolkit like Qt, which you can use to open a window and draw stuff in it (as well as create buttons, menus, etc.), or you can use a more low level library like SDL, which just allows you to draw in a single window or full screen.

Alex

chandan · 01-23-2004, 05:50 AM

I don't want to develop any GUI application using Qt library.
I want a basic function to just put a pixel on the screen.
Is there a function equivalent to the putpixel function available in bgi library of borland C which takes the coordinates of the point and the color and puts it on the screen.
I basically want to use this to draw lines , circles etc using various graphics algorithms

kev82 · 01-23-2004, 06:49 AM

the SDL library should do fine but you'll have to write your own pixel plotting function(quite easy - SDL gives you a pointer to the pixel data), although there are lots of addons for SDL one of which might contain a pixel plotting function.

Kurt M. Weber · 01-23-2004, 09:16 AM

You can also use SVGALib if you don't mind the fact that your code will only work on Linux.