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Diff for /OpenXM_contrib2/asir2000/lib/glib between version 1.1 and 1.17

version 1.1, 2001/12/10 05:02:46 version 1.17, 2006/03/03 10:36:18
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Line 1 
 /* $OpenXM$ */  /* $OpenXM: OpenXM_contrib2/asir2000/lib/glib,v 1.16 2004/03/14 12:56:47 takayama Exp $ */
 /* $Id$ */  
   
 /* Todo:  /* BUG: this library has not yet been adapted to the new automatic launcher
      1. Some functions should be moved to longname          of ox_plot. 2002, Aug, 4.  Do not load glib more than twice.
 */  */
   
   extern Cfep_loaded$
   
   #define DO_NOT_START_SERVER_EXPLICITLY
   
 /* #define CLIP  1 */  /* #define CLIP  1 */
 /* #define DEBUG 1 */  /* #define DEBUG 1 */
 #define LIST  4  #define LIST  4
   
 /* General sugar functions */  def glib_floor(N) {
 def floor(N) {  
   return(pari(floor,N));    return(pari(floor,N));
 }  }
   
   /*
 def join(A,B) {  def join(A,B) {
   if (type(B) == 0) return(A);    if (type(B) == 0) return(A);
   return(append(A,B));    return(append(A,B));
 }  }
   
 def eigenvalues(M) {  def eigenvalues(M) {
   return(pari(eigen,M));    return(pari(eigen,M));
 }  }
   
 def roots(F) {  def roots(F) {
   return(pari(roots,F));    return(pari(roots,F));
 }  }
   */
   
 /*  ---------------------------------------------- */  /*  ---------------------------------------------- */
 def ox_get_errors(P) {  def glib_ox_get_errors(P) {
   ox_push_cmd(P,276);    ox_push_cmd(P,276);
   return(ox_pop_cmo(P));    return(ox_pop_cmo(P));
 }  }
   
 def reset_plot() {  def reset_plot() {
   extern Glib_process;    extern Glib_process;
   print("  Sending signal to ox_plot",0);    if (!Cfep_loaded) {
   ox_reset(Glib_process);      print("  Sending signal to ox_plot",0);
   print("  Done.");      ox_reset(Glib_process);
       print("  Done.");
     }
 }  }
   Glib_ps = 0$
   Glib_h = []$
 Glib_canvas_x = 400$  Glib_canvas_x = 400$
 Glib_canvas_y = 400$  Glib_canvas_y = 400$
 Glib_xmin=0$  Glib_xmax=Glib_canvas_x$  Glib_xmin=0$  Glib_xmax=Glib_canvas_x$
 Glib_ymin=0$  Glib_ymax=Glib_canvas_y$  Glib_ymin=0$  Glib_ymax=Glib_canvas_y$
 #define START_SERVER \  Glib_math_coordinate=0$
 extern Glib_server_started, Glib_process$ \  
 if (type(Glib_server_started) == 0) { \  
   Glib_process = ox_launch_nox(0,"ox_plot")$ \  
   register_handler(reset_plot); \  
   Glib_server_started = 1$ \  
 }$  
   
   
 Glib_canvas = -1$  Glib_canvas = -1$
 Glib_xmag = 1$ Glib_ymag=1$ Glib_xoffset=0$ Glib_yoffset=0$  Glib_xmag = 1$ Glib_ymag=1$ Glib_xoffset=0$ Glib_yoffset=0$
 Glib_safe_mode = 2 $  Glib_safe_mode = 2 $
 Glib_counter = 100$  Glib_counter = 100$
   
   extern Glib_ps_sx$
   extern Glib_ps_sy$
   Glib_ps_sx=2$  /* mag=1/2 for PS picture. cf. glib_ps_form, glib_tops */
   Glib_ps_sy=2$  /* mag=1/2 for PS picture */
   
 def open_Canvas(P,S) {  def open_Canvas(P,S) {
   open_canvas(P,S);    extern Glib_process;
   R = ox_pop_cmo(P);    /* print("open_Canvas: ",0);print(S); */
 /*    if (!Cfep_loaded) {
   if (ox_get_errors(P) == []) {      if (P < 0) P=open_canvas(S); /* BUG, get process No. */
       else open_canvas(P,S);
       Glib_process = P;
     R = ox_pop_cmo(P);      R = ox_pop_cmo(P);
       /*
       if (glib_ox_get_errors(P) == []) {
         R = ox_pop_cmo(P);
       }else{
         debug;
       }
       */
   }else{    }else{
     debug;      R=cfep.open_canvas(S);
   }    }
 */  
   return(R);    return(R);
 }  }
   
   /*&usage begin: glib_open()
     It starts the ox_plot server and opens a canvas.
     The canvas size is set to {Glib_canvas_x} X {Glib_canvas_y}
     (the default value is 400).
     This function is automatically called when the user calls glib
     functions.
   end: */
   
 def glib_open() {  def glib_open() {
   extern Glib_canvas_x, Glib_canvas_y,    extern Glib_canvas_x, Glib_canvas_y,
          Glib_process, Glib_canvas;           Glib_process, Glib_canvas,
   START_SERVER           Glib_server_started, Glib_process$
     if (!Cfep_loaded) return glib_openx11();
     else {
       Glib_canvas = open_Canvas(-1,[Glib_canvas_x,Glib_canvas_y])$
       Glib_server_started = 1$
       return(Glib_canvas);
     }
   }
   def glib_openx11() {
     extern Glib_canvas_x, Glib_canvas_y,
            Glib_process, Glib_canvas,
            Glib_server_started, Glib_process$
   #ifndef DO_NOT_START_SERVER_EXPLICITLY
     if (type(Glib_server_started) == 0) {
       Glib_process = ox_launch_nox(0,"ox_plot")$
       register_handler(reset_plot);
       Glib_server_started = 1$
     }$
   Glib_canvas = open_Canvas(Glib_process,[Glib_canvas_x,Glib_canvas_y])$    Glib_canvas = open_Canvas(Glib_process,[Glib_canvas_x,Glib_canvas_y])$
   #else
     Glib_canvas = open_Canvas(-1,[Glib_canvas_x,Glib_canvas_y])$
     register_handler(reset_plot);
     Glib_server_started = 1$
   #endif
   glib_check_strict();    glib_check_strict();
   return(Glib_canvas);    return(Glib_canvas);
 }  }
Line 100  def glib_check_strict() {
Line 144  def glib_check_strict() {
   if (Glib_canvas < 0) {    if (Glib_canvas < 0) {
     glib_open();      glib_open();
   }    }
   E = ox_get_errors(Glib_process);    if (Cfep_loaded) return ;
     E = glib_ox_get_errors(Glib_process);
   if (E != []) {    if (E != []) {
     ox_pops(Glib_process,200);      ox_pops(Glib_process,200);
     print(E);      print(E);
Line 115  def glib_check_strict() {
Line 160  def glib_check_strict() {
 def glib_clear() {  def glib_clear() {
   extern Glib_process, Glib_canvas;    extern Glib_process, Glib_canvas;
   if (Glib_canvas < 0) glib_open();    if (Glib_canvas < 0) glib_open();
   clear_canvas(Glib_process,Glib_canvas);    if (!Cfep_loaded) clear_canvas(Glib_process,Glib_canvas);
 }  }
   
   /*&usage begin: glib_window(Xmin,Ymin,Xmax,Ymax)
     It generates a window with the left top corner [{Xmin},{Ymin}] and
     the right bottom corner [{Xmax},{Ymax}].
     If the global variable {Glib_math_coordinate} is set to 1, mathematical
     coordinate system will be employed, i.e., the left top
     corner will have the coordinate [{Xmin},{Ymax}].
     example: glib_window(-1,-1,10,10);
   end: */
 def glib_window(Xmin,Ymin,Xmax,Ymax) {  def glib_window(Xmin,Ymin,Xmax,Ymax) {
   extern Glib_xmin,  Glib_xmax, Glib_ymin, Glib_ymax,    extern Glib_xmin,  Glib_xmax, Glib_ymin, Glib_ymax,
          Glib_canvas_x, Glib_canvas_y, Glib_process, Glib_canvas,           Glib_canvas_x, Glib_canvas_y, Glib_process, Glib_canvas,
          Glib_xoffset, Glib_yoffset, Glib_xmag, Glib_ymag;           Glib_xoffset, Glib_yoffset, Glib_xmag, Glib_ymag;
   if (Xmax <= Xmin) error("glib window: Invalid size");    if (Xmax <= Xmin) error("glib window: Invalid size");
   if (Ymax <= Ymin) error("glib window: Invalid size");    if (Ymax <= Ymin) error("glib window: Invalid size");
     glib_check_arg(Xmin,Ymin); glib_check_arg(Xmax,Ymax);
   Glib_xmin = Xmin;  Glib_xmax = Xmax;    Glib_xmin = Xmin;  Glib_xmax = Xmax;
   Glib_ymin = Ymin;  Glib_ymax = Ymax;    Glib_ymin = Ymin;  Glib_ymax = Ymax;
   Glib_xoffset = -Xmin;    Glib_xoffset = -Xmin;
Line 133  def glib_window(Xmin,Ymin,Xmax,Ymax) {
Line 187  def glib_window(Xmin,Ymin,Xmax,Ymax) {
   if (Glib_canvas < 0) glib_open();    if (Glib_canvas < 0) glib_open();
 }  }
   
   def glib_check_arg(X,Y) {
     if (type(X) <= 1 && type(Y) <= 1) return 1;
     else {
       print("Error in glib: arguments ",0);
       print([X,Y],0);
       print(" are not numbers.");
       error("Invalid argument for glib_window, glib_putpixel, glib_line.");
     }
   }
   
   /*&usage begin: glib_putpixel(X,Y|color)
     It puts a pixel at [{X},{Y}] with {color}
     example: glib_putpixel(1,2 | color=0xffff00);
   end: */
 def glib_putpixel(X,Y) {  def glib_putpixel(X,Y) {
   extern Glib_process, Glib_canvas,    extern Glib_process, Glib_canvas,
          Glib_xoffset, Glib_yoffset, Glib_xmag, Glib_ymag;           Glib_xoffset, Glib_yoffset, Glib_xmag, Glib_ymag, Glib_ps,
            Glib_math_coordinate, Glib_canvas_y;
   if (Glib_canvas < 0) glib_open();    if (Glib_canvas < 0) glib_open();
   glib_check();    glib_check();
   draw_obj(Glib_process,Glib_canvas,    glib_check_arg(X,Y);
            [floor(Glib_xmag*(X+Glib_xoffset)),    C = getopt(color);
             floor(Glib_ymag*(Y+Glib_yoffset))]);    if (Glib_math_coordinate) {
       Pos = [glib_floor(Glib_xmag*(X+Glib_xoffset)),
              Glib_canvas_y-glib_floor(Glib_ymag*(Y+Glib_yoffset))];
       Pos2= [glib_floor(Glib_xmag*(X+Glib_xoffset)),
              glib_floor(Glib_ymag*(Y+Glib_yoffset))];
     }else{
       Pos = [glib_floor(Glib_xmag*(X+Glib_xoffset)),
              glib_floor(Glib_ymag*(Y+Glib_yoffset))];
       Pos2= [glib_floor(Glib_xmag*(X+Glib_xoffset)),
              Glib_canvas_y-glib_floor(Glib_ymag*(Y+Glib_yoffset))];
     }
     if ( type(C) != -1 ) {
       if (!Cfep_loaded) draw_obj(Glib_process,Glib_canvas,Pos,C);
       else cfep.draw_obj2(Glib_process,Glib_canvas,Pos,C);
       if (Glib_ps) glib_history(["putpixel",Pos2,C]);
     }else{
       if (!Cfep_loaded) draw_obj(Glib_process,Glib_canvas,Pos);
       else cfep.draw_obj(Glib_process,Glib_canvas,Pos);
       if (Glib_ps) glib_history(["putpixel",Pos2,0]);
     }
 }  }
   
   /*&usage begin: glib_line(X0,Y0,X1,Y1|color)
     It draws the line [{X0},{Y0}]-- [{X1},{Y1}] with {color}
     example: glib_line(0,0,5,3/2 | color=0xff00ff);
   end: */
 def glib_line(X0,Y0,X1,Y1) {  def glib_line(X0,Y0,X1,Y1) {
   extern Glib_xmag, Glib_ymag, Glib_xoffset, Glib_yoffset;    extern Glib_xmag, Glib_ymag, Glib_xoffset, Glib_yoffset;
   glib_clip_line(floor(Glib_xmag*(X0+Glib_xoffset)),    C = getopt(color);
                  floor(Glib_ymag*(Y0+Glib_yoffset)),    glib_check_arg(X0,Y0);
                  floor(Glib_xmag*(X1+Glib_xoffset)),    glib_check_arg(X1,Y1);
                  floor(Glib_ymag*(Y1+Glib_yoffset)));    glib_clip_line(glib_floor(Glib_xmag*(X0+Glib_xoffset)),
                    glib_floor(Glib_ymag*(Y0+Glib_yoffset)),
                    glib_floor(Glib_xmag*(X1+Glib_xoffset)),
                    glib_floor(Glib_ymag*(Y1+Glib_yoffset)),C);
 }  }
   
 def glib_clip_line(X0,Y0,X1,Y1) {  def glib_clip_line(X0,Y0,X1,Y1,Color) {
   /* X0, Y0, X1, Y1 should be integers.    /* X0, Y0, X1, Y1 should be integers.
      Coordinates are already translated. */       Coordinates are already translated. */
   extern Glib_process, Glib_canvas, Glib_canvas_x, Glib_canvas_y;    extern Glib_process, Glib_canvas, Glib_canvas_x, Glib_canvas_y,
            Glib_ps,  Glib_math_coordinate;
   if (Glib_canvas < 0) glib_open();    if (Glib_canvas < 0) glib_open();
   
 #ifdef CLIP  if (Glib_ps) {
 #ifdef DEBUG  #ifdef DEBUG
   print(["clip_line",[X0,Y0,X1,Y1]]);    print(["clip_line",[X0,Y0,X1,Y1]]);
 #endif  #endif
Line 193  def glib_clip_line(X0,Y0,X1,Y1) {
Line 289  def glib_clip_line(X0,Y0,X1,Y1) {
 #ifdef DEBUG  #ifdef DEBUG
   print([X0,Y0,X1,Y1]);    print([X0,Y0,X1,Y1]);
 #endif  #endif
 #endif  }
   
   glib_check();    glib_check();
   draw_obj(Glib_process,Glib_canvas,    if (Glib_math_coordinate) {
            [floor(X0),floor(Y0),floor(X1),floor(Y1)]);      Pos = [glib_floor(X0),Glib_canvas_y-glib_floor(Y0),
              glib_floor(X1),Glib_canvas_y-glib_floor(Y1)];
       Pos2= [glib_floor(X0),glib_floor(Y0),glib_floor(X1),glib_floor(Y1)];
     }else{
       Pos = [glib_floor(X0),glib_floor(Y0),glib_floor(X1),glib_floor(Y1)];
       Pos2 = [glib_floor(X0),Glib_canvas_y-glib_floor(Y0),
              glib_floor(X1),Glib_canvas_y-glib_floor(Y1)];
     }
     if ( type(Color) != -1 ) {
       if (!Cfep_loaded) draw_obj(Glib_process,Glib_canvas,Pos,Color);
       else cfep.draw_obj2(Glib_process,Glib_canvas,Pos,Color);
       if (Glib_ps) glib_history(["line",Pos2,Color]);
     }else{
       if (!Cfep_loaded) draw_obj(Glib_process,Glib_canvas,Pos);
       else cfep.draw_obj(Glib_process,Glib_canvas,Pos);
       if (Glib_ps) glib_history(["line",Pos2,0]);
     }
 }  }
   
 def glib_clip0_x(X0,Y0,X1,Y1,Clip) {  def glib_clip0_x(X0,Y0,X1,Y1,Clip) {
Line 239  def glib_clip1_y(X0,Y0,X1,Y1,Clip) {
Line 351  def glib_clip1_y(X0,Y0,X1,Y1,Clip) {
      return([X0,Y0,X1+(Clip-Y1)*(X0-X1)/(Y0-Y1),Clip]);       return([X0,Y0,X1+(Clip-Y1)*(X0-X1)/(Y0-Y1),Clip]);
    }     }
    return([X0,Y0,X1,Y1]);     return([X0,Y0,X1,Y1]);
   }
   
   /*&usage begin: glib_print(X,Y,Text|color)
     It put a string {Text} at [{X},{Y}] on the glib canvas.
     example: glib_print(100,100,"Hello Worlds" | color=0xff0000);
   end: */
   def glib_print(X,Y,Text) {
     extern Glib_process, Glib_canvas,
            Glib_xoffset, Glib_yoffset, Glib_xmag, Glib_ymag, Glib_ps,
            Glib_math_coordinate, Glib_canvas_y;
     if (Glib_canvas < 0) glib_open();
     glib_check();
     glib_check_arg(X,Y);
     if (type(Text) != 7) error("glib_print(X,Y,Text): Text must be a string.");
     C = getopt(color);
     if (Glib_math_coordinate) {
       Pos = [glib_floor(Glib_xmag*(X+Glib_xoffset)),
              Glib_canvas_y-glib_floor(Glib_ymag*(Y+Glib_yoffset))];
       Pos2= [glib_floor(Glib_xmag*(X+Glib_xoffset)),
              glib_floor(Glib_ymag*(Y+Glib_yoffset))];
     }else{
       Pos = [glib_floor(Glib_xmag*(X+Glib_xoffset)),
              glib_floor(Glib_ymag*(Y+Glib_yoffset))];
       Pos2= [glib_floor(Glib_xmag*(X+Glib_xoffset)),
              Glib_canvas_y-glib_floor(Glib_ymag*(Y+Glib_yoffset))];
     }
     if ( type(C) != -1 ) {
       if (!Cfep_loaded) draw_string(Glib_process,Glib_canvas,Pos,Text,C);
       else cfep.draw_string2(Glib_process,Glib_canvas,Pos,Text,C);
       if (Glib_ps) glib_history(["print",Pos2,Text,C]);
     }else{
       if (!Cfep_loaded) draw_string(Glib_process,Glib_canvas,Pos,Text);
       else cfep.draw_string(Glib_process,Glib_canvas,Pos,Text);
       if (Glib_ps) glib_history(["print",Pos2,Text,0]);
     }
   }
   
   def glib_history(L) {
     extern Glib_h, Glib_canvas_x, Glib_canvas_y,
            Glib_math_coodinate;
     if (L[0] == "putpixel" || L[0] == "print") {
       if (L[1][0] <= Glib_canvas_x && L[1][0] >= 0) {
         if (L[1][1] <= Glib_canvas_x && L[1][1] >= 0)
            Glib_h = cons(L,Glib_h);
       }
     }else {
       Glib_h = cons(L,Glib_h);
     }
     return 0;
   }
   
   #define xxx(x) idiv(x,Glib_ps_sx)
   #define yyy(y) idiv(y,Glib_ps_sy)
   
   /*&usage begin: glib_tops()
     If Glib_ps is set to 1,
     it returns a postscript program to draw the picture on the canvas.
     ref: print_output
   end: */
   def glib_tops() {
     extern Glib_h;
     return glib_ps(Glib_h);
   }
   def glib_ps(L) {
     extern Glib_ps_sx;
     extern Glib_ps_sy;
     PS = string_to_tb("");
     Prev_color = 0;
     /* Prolog */
     write_to_tb("%%!PS-Adobe-1.0\n",PS);
     write_to_tb("%%BoundingBox: 0 0 " +
             rtostr(xxx(Glib_canvas_x)) + " " + rtostr(yyy(Glib_canvas_y)) + "\n",PS);
     write_to_tb("%%Creator: This is generated by ifplot\n",PS);
     write_to_tb("%%Title: ifplot\n",PS);
     write_to_tb("%%EndComments: \n",PS);
     write_to_tb("0.1 setlinewidth \n",PS);
     write_to_tb("2 setlinecap \n",PS);
     write_to_tb("2 setlinejoin \n",PS);
     write_to_tb("/ifplot_putpixel {  \n",PS);
     write_to_tb("    /yyy 2 1 roll def /xxx 2 1 roll def \n",PS);
     write_to_tb("    gsave newpath xxx yyy .5 0 360 arc \n",PS);
     write_to_tb("    fill grestore \n",PS);
     write_to_tb("} def \n",PS);
   
     L = reverse(L);
     N = length(L);
     for (I=0; I<N; I++) {
       C = L[I];
       if (C[length(C)-1] != Prev_color) {
         Prev_color = C[length(C)-1];
         write_to_tb(rtostr(deval(ishift(Prev_color,16)/256)) + " " +
               rtostr(deval(iand(ishift(Prev_color,8),0xff)/256)) + " " +
               rtostr(deval(iand(Prev_color,0xff)/256)) + " setrgbcolor \n",PS);
       }
       if (C[0] == "putpixel") {
          write_to_tb(rtostr(xxx(C[1][0])) + " " + rtostr(yyy(C[1][1])) + " ifplot_putpixel \n",PS);
       }
       if (C[0] == "line") {
          write_to_tb(" newpath ",PS);
          write_to_tb(rtostr(xxx(C[1][0])) + " " + rtostr(yyy(C[1][1])) + " moveto " +
                rtostr(xxx(C[1][2])) + " " + rtostr(yyy(C[1][3])) + " lineto stroke \n",PS);
       }
       if (C[0] == "print") {
          write_to_tb("/Times-Roman findfont 10 scalefont setfont \n",PS);
          write_to_tb(rtostr(xxx(C[1][0])) + " " + rtostr(yyy(C[1][1])) + " moveto ",PS);
          write_to_tb("(" + C[2] + ")  show \n",PS);
       }
     }
   
     /* Epilog */
     write_to_tb("0 0 0 setrgbcolor \n",PS);
     write_to_tb("showpage \n",PS);
   
     return tb_to_string(PS);
   }
   
   /*&usage begin: glib_ps_form(S)
     It returns the PS code generated by executing {S}
     (experimental).
     example: glib_ps_form(quote( glib_line(0,0,100,100) ));
     example: glib_ps_form(quote([glib_line(0,0,100,100),glib_line(100,0,0,100)]));
     ref: glib_tops
   end: */
   /* Todo.  Change the canvas size.  */
   def glib_ps_form(F) {
     extern Glib_h;
     extern Glib_ps;
     H = Glib_h; /* push Glib_h */
     P = Glib_ps; /* push Glib_ps */
   
     Glib_ps=1; Glib_h = [];
     if (type(F) != 17) {
       return "Error: argument should be quote(...).";
     }
     eval_quote(F);
     /* bug. eval_str causes seg fault for ccurve.rr main(8) */
     R = glib_tops();
     Glib_h = H; /* pop Glib_h */
     Glib_ps = P; /* pop Glib_ps */
     return R;
   }
   
   /*&usage begin: glib_plot(F)
     It plots an object {F} on the glib canvas.
     example: glib_plot([[0,1],[0.1,0.9],[0.2,0.7],[0.3,0.5],[0.4,0.8]]);
     example: glib_plot(tan(x));
   end: */
   /* bug, xmin, xmax, color should be optional variables. */
   def glib_plot(F) {
     Opt = getopt();
     taka_glib_plot(F,Opt);
   }
   
   def glib_flush() {
     extern Glib_canvas;
     if (Cfep_loaded) cfep.draw_flush(Glib_canvas);
 }  }
 end$  end$
   
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  Added in v.1.17
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