Xgraphics?

[rich.bradshaw]

http://theorie.physik.uni-wuerzburg.de/Xgraphics/

Is the link. These Xgraphics libraries work fine on a Unix machine, and apparently in Suse too, but not on Ubuntu. The error thrown when compiling is from Xgraphics.h, at the point where:

#include <X11/Xlib.h>
#include <X11/Xutil.h>

These files aren't on my PC, but are on the Unix machine. Does anyone know how to get this working?

Thanks - any suggestions are welcome!

Rich

[lnostdal]

let's see now ..

aptitude search xlib

..xlibs-dev shows up; have you tried installing that?


lars@ibmr52:~/programming/c$ locate Xlib.h
/usr/include/X11/Xlib.h


edit:
the stuff you're working with seems very old/deprecated; you do know things like gtk+ and cairo exists? just a note

[rich.bradshaw]

Well, at university I have written a lot of code using it, so that's why i'm interested. That did get past the first problem, but didn't fix it totally. Think I will continue to produce version without graphics for home/processor intensive version, and pretty graphical version to use at Uni to see what's going on in my simulation.

How easy is it to use GTK etc? All I want to do is draw dots,circles and lines on the screen to represent movements of ants.

[lnostdal]

/*
gcc -Wall -g `pkg-config --cflags --libs gtk+-2.0` `pkg-config --cflags --libs cairo` cairo2.c -o cairo2
*/

#include <stdio.h>
#include <gtk/gtk.h>
#include <cairo/cairo.h>


void hello(GtkWidget* drawable, gpointer data)
{
// Width and height so you can scale the drawing as the user resizes the window.
printf("width: %d, height: %d\n", drawable->allocation.width, drawable->allocation.height);
cairo_t* cr = gdk_cairo_create(drawable->window); // drawing context
cairo_arc(cr, 50, 50, 45, 0, 2);
cairo_stroke(cr);
cairo_destroy(cr); // done with drawing context
}


void destroy(GtkWidget* widget, gpointer data)
{
gtk_main_quit ();
}



int main(int argc, char** argv)
{
gtk_init(&argc, &argv);

GtkWidget* window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
GtkWidget* drawable = gtk_drawing_area_new();
gtk_container_add((GtkContainer*)window, drawable);
g_signal_connect(drawable, "expose-event", G_CALLBACK(hello), NULL);
g_signal_connect(window, "delete_event", G_CALLBACK(destroy), NULL);
gtk_widget_show_all(window);

gtk_main();
return 0;
}


(you need the *-dev libraries for gtk and cairo for this to compile; just search using aptitude like i did above)

cairo is easy to use and has good documentation: http://www.cairographics.org/manual/ .. edit: oh, and it produces beautiful results :)