DISLIN Examples / Java

Demonstration of CURVE / Java

import de.dislin.Dislin;

public class curve {
  public static void main (String args []) {
     int n = 100, i, ic;
     double x, fpi = 3.1415926/180., step = 360. / (n-1);

     float xray []  = new float [n];
     float y1ray [] = new float [n];
     float y2ray [] = new float [n];

     for (i = 0; i < n; i++) {
        xray[i] = (float) (i * step);
        x = xray[i] * fpi;
        y1ray[i] = (float) Math.sin (x);
        y2ray[i] = (float) Math.cos (x);
     }
       
     Dislin.scrmod ("revers");
     Dislin.metafl ("cons");
     Dislin.disini ();
     Dislin.pagera ();
     Dislin.complx ();

     Dislin.axspos (450, 1800);
     Dislin.axslen (2200, 1200);
         
     Dislin.name   ("X-axis", "x");
     Dislin.name   ("Y-axis",  "y");

     Dislin.labdig (-1, "x");
     Dislin.ticks  (9,  "x");
     Dislin.ticks  (10, "y");
 
     Dislin.titlin ("Demonstration of CURVE", 1);
     Dislin.titlin ("SIN(X), COS(X)", 3);

     ic = Dislin.intrgb (0.95f, 0.95f, 0.95f);
     Dislin.axsbgd (ic);

     Dislin.graf   (0.f, 360.f, 0.f, 90.f,
                     -1.f, 1.f, -1.f, 0.5f);
     Dislin.setrgb (0.7f, 0.7f, 0.7f);
     Dislin.grid (1, 1);

     Dislin.color ("fore");
     Dislin.height(50);
     Dislin.title  ();
 
     Dislin.color  ("red");
     Dislin.curve  (xray, y1ray, n);
     Dislin.color  ("green");
     Dislin.curve  (xray, y2ray, n);
     Dislin.disfin ();
  }
}

---

Polar Plots / Java

import de.dislin.Dislin;

public class polar {
  public static void main (String args []) {
     int n = 300, m = 10, i, ic;
     double a, f = 3.1415926/180., step = 360. / (n-1);

     float x1 [] = new float [n];
     float y1 [] = new float [n];
     float x2 [] = new float [m];
     float y2 [] = new float [m];

     for (i = 0; i < n; i++) {
        a = (i * step) * f;
        y1[i] = (float) a;
        x1[i] = (float) Math.sin (5 * a);
     }

     for (i = 0; i < m; i++) {
        x2[i] = i + 1;
        y2[i] = i + 1;
     }    
    
     Dislin.scrmod ("revers");
     Dislin.setpag ("da4p");
     Dislin.metafl ("cons");
     Dislin.disini ();
     Dislin.pagera ();
     Dislin.hwfont ();

     Dislin.titlin ("Polar Plots", 2);
     Dislin.ticks  (3, "Y");
     Dislin.axends ("NOENDS", "X");
     Dislin.labdig (-1, "Y");
     Dislin.axslen (1000, 1000);
     Dislin.axsorg (1050, 900);

     ic = Dislin.intrgb (0.95f, 0.95f, 0.95f);
     Dislin.axsbgd (ic);

     Dislin.grafp  (1.f, 0.f, 0.2f, 0.f, 30.f);
     Dislin.color  ("blue");
     Dislin.curve  (x1, y1, n);
     Dislin.color  ("fore");
     Dislin.htitle (50);
     Dislin.title  ();
     Dislin.endgrf ();

     Dislin.labdig (-1, "X");
     Dislin.axsorg (1050, 2250);
     Dislin.labtyp ("VERT", "Y");
     Dislin.grafp  (10.f, 0.f, 2.f, 0.f, 30.f);
     Dislin.barwth (-5.f);
     Dislin.polcrv ("FBARS");
     Dislin.color  ("blue");
     Dislin.curve  (x2, y2, m);
     Dislin.disfin ();
  }
}

---

Symbols / Java

import de.dislin.Dislin;

public class symbols {
  public static void main (String args []) {
     int ny = 150, nxp = 0, nl, i;
     String ctit = "Symbols", cstr = "  ";
  
     Dislin.scrmod ("revers");
     Dislin.metafl ("cons");
     Dislin.setpag ("da4p");
     Dislin.disini ();
     Dislin.pagera ();
     Dislin.complx ();

     Dislin.height (60);
     nl = Dislin.nlmess (ctit);
     Dislin.messag (ctit, (2100 - nl) / 2, 200);

     Dislin.height (50);
     Dislin.hsymbl (120);

     for (i = 0; i < 24; i++) { 
       if ((i % 4) == 0) {
         ny  += 400;
         nxp  = 550;
       }
       else {
         nxp += 350;
       }

       cstr = "" + i;
       nl = Dislin.nlmess (cstr) / 2;
       Dislin.messag (cstr, nxp - nl, ny + 150);
       Dislin.symbol (i, nxp, ny);
     }
     Dislin.disfin ();
  }
}

---

Interpolation Methods / Java

import de.dislin.Dislin;

public class intpol {
  public static void main (String args []) {
     int i, nya = 2700, nx, ny, ic;
     String ctit = "Interpolation Methods";
     float xray [] = {0.f, 1.f, 3.f, 4.5f, 6.f, 8.f, 9.f, 11.f, 12.f,
                      12.5f, 13.f, 15.f, 16.f, 17.f, 19.f, 20.f};
     float yray [] = {2.f, 4.f, 4.5f, 3.f, 1.f, 7.f, 2.f, 3.f, 5.f, 
                      2.f, 2.5f, 2.f, 4.f, 6.f, 5.5f, 4.f};
     String cpol [] = {"SPLINE", "STEM", "BARS", "STAIRS", 
                       "STEP", "LINEAR"};

     Dislin.scrmod ("revers");
     Dislin.setpag ("da4p");
     Dislin.metafl ("cons");

     Dislin.disini ();
     Dislin.pagera ();
     Dislin.complx ();

     Dislin.incmrk (1);
     Dislin.hsymbl (25);
     Dislin.titlin (ctit, 1);
     Dislin.axslen (1500, 350);
     Dislin.setgrf ("LINE", "LINE", "LINE", "LINE");

     ic = Dislin.intrgb (1.0f, 1.0f, 0.0f);
     Dislin.axsbgd (ic);

     for (i = 0; i < 6; i++) {
       Dislin.axspos (350, nya - i * 350);
       Dislin.polcrv (cpol[i]);
       Dislin.marker (0);
       Dislin.graf   (0.f, 20.f, 0.f, 5.f, 0.f, 10.f, 0.f, 5.f);
       nx = Dislin.nxposn (1.f);
       ny = Dislin.nyposn (8.f);
       Dislin.messag (cpol[i], nx, ny);
       Dislin.color  ("red");
       Dislin.curve  (xray, yray, 16);
       Dislin.color  ("fore");

       if (i == 5) {
         Dislin.height (50);
         Dislin.title ();
       }
       Dislin.endgrf ();
     }
     Dislin.disfin ();
  }
}

---

Bar Graphs / Java

import de.dislin.Dislin;
 
public class bars {
  public static void main (String args []) {
     int nya = 2700, i;
     String ctit = "Bar Graphs (BARS)";
     String cbuf = " ";

     float x[]  = {1.f,2.f,3.f,4.f,5.f,6.f,7.f,8.f,9.f};
     float y[]  = {0.f,0.f,0.f,0.f,0.f,0.f,0.f,0.f,0.f};
     float y1[] = {1.f,1.5f,2.5f,1.3f,2.0f,1.2f,0.7f,1.4f,1.1f};
     float y2[] = {2.f,2.7f,3.5f,2.1f,3.2f,1.9f,2.0f,2.3f,1.8f};
     float y3[] = {4.f,3.5f,4.5f,3.7f,4.f,2.9f,3.0f,3.2f,2.6f};

     Dislin.scrmod ("revers");
     Dislin.setpag ("da4p");
     Dislin.metafl ("cons");
     Dislin.disini ();
     Dislin.pagera ();
     Dislin.complx ();
     Dislin.ticks  (1,"x");
     Dislin.intax  ();
     Dislin.axslen (1600,700);
     Dislin.titlin (ctit,3);

     Dislin.legini (cbuf,3,8);
     Dislin.leglin (cbuf,"FIRST",1);
     Dislin.leglin (cbuf,"SECOND",2);
     Dislin.leglin (cbuf,"THIRD",3);
     Dislin.legtit (" ");
     Dislin.shdpat (5);

     for (i = 1; i <= 3; i++)
     { if (i >  1) Dislin.labels ("none","x");
       Dislin.axspos (300,nya-(i-1)*800);
       Dislin.graf (0.f,10.f,0.f,1.f,0.f,5.f,0.f,1.f);

       if (i == 1)
       { Dislin.bargrp (3,0.15f);
         Dislin.color  ("red");
         Dislin.bars   (x,y,y1,9);
         Dislin.color  ("green");
         Dislin.bars   (x,y,y2,9);
         Dislin.color  ("blue");
         Dislin.bars   (x,y,y3,9);
         Dislin.color  ("fore");
         Dislin.reset  ("bargrp");
       }
       else if (i == 2)
       { Dislin.height (30);
         Dislin.labels ("delta","bars");
         Dislin.labpos ("center","bars");
         Dislin.color  ("red");
         Dislin.bars   (x,y,y1,9);
         Dislin.color  ("green");
         Dislin.bars   (x,y1,y2,9);
         Dislin.color  ("blue");
         Dislin.bars   (x,y2,y3,9);
         Dislin.color  ("fore");
         Dislin.reset  ("height"); 
       }
       else if (i == 3)
       { Dislin.labels ("second","bars");
         Dislin.labpos ("outside","bars");
         Dislin.color  ("red");
         Dislin.bars   (x,y,y1,9);
         Dislin.color  ("fore");
       }

       if (i != 3) Dislin.legend (cbuf,7);

       if (i == 3)
       { Dislin.height (50);
         Dislin.title  ();
       }

       Dislin.endgrf ();
     }

     Dislin.disfin ();
  }
}

---

Pie Charts / Java

import de.dislin.Dislin;

public class piegrf {
  public static void main (String args []) {
     float xray  []  = {1.f, 2.5f, 2.f, 2.7f, 1.8f};
     String ctit = "Pie Charts (PIEGRF)";
     String cbuf = " ";
       
     Dislin.scrmod ("revers");
     Dislin.metafl ("cons");
     Dislin.setpag ("da4p");
     Dislin.disini ();
     Dislin.pagera ();
     Dislin.complx ();

     Dislin.chnpie ("both");

     Dislin.axslen (1600, 1000);
     Dislin.titlin (ctit, 2);

     Dislin.legini (cbuf, 5, 8);
     Dislin.leglin (cbuf, "FIRST",  1);
     Dislin.leglin (cbuf, "SECOND", 2);
     Dislin.leglin (cbuf, "THIRD",  3);
     Dislin.leglin (cbuf, "FOURTH", 4);
     Dislin.leglin (cbuf, "FIFTH",   5);

     // Selecting shading patterns
     Dislin.patcyc (1, 7);
     Dislin.patcyc (2, 4);
     Dislin.patcyc (3, 13);
     Dislin.patcyc (4, 3);
     Dislin.patcyc (5, 5);

     Dislin.axspos (250, 2800);
     Dislin.piegrf (cbuf, 1, xray, 5);
     Dislin.endgrf ();
 
     Dislin.axspos (250, 1600);
     Dislin.labels ("DATA", "PIE");
     Dislin.labpos ("EXTERNAL", "PIE");
     Dislin.piegrf (cbuf, 1, xray, 5);

     Dislin.height (50);
     Dislin.title  ();

     Dislin.disfin ();
  }
}

---

3-D Bar Graph / 3-D Pie Chart / Java

import de.dislin.Dislin;

public class bar3d {
  public static void main (String args []) {
     float xray[]  = {2.f,4.f,6.f,8.f,10.f};
     float y1ray[] = {0.f,0.f,0.f,0.f,0.f};
     float y2ray[] = {3.2f,1.5f,2.0f,1.0f,3.0f};

     int ic1ray[]  = {50,150,100,200,175};
     int ic2ray[]  = {50,150,100,200,175};
     String cbuf = " ";

     Dislin.scrmod ("revers");
     Dislin.metafl ("cons");
     Dislin.setpag ("da4p");
     Dislin.disini ();
     Dislin.pagera ();
     Dislin.hwfont ();

     Dislin.titlin ("3-D Bar Graph / 3-D Pie Chart", 2);
     Dislin.htitle (40);

     Dislin.shdpat (16);
     Dislin.axslen (1500,1000);
     Dislin.axspos (300,1400);

     Dislin.barwth (0.5f);
     Dislin.bartyp ("3dvert");
     Dislin.labels ("second","bars");
     Dislin.labpos ("outside","bars");
     Dislin.labclr (255,"bars");
     Dislin.graf   (0.f,12.f,0.f,2.f,0.f,5.f,0.f,1.f);
     Dislin.title  ();
     Dislin.color  ("red");
     Dislin.bars   (xray,y1ray,y2ray,5);
     Dislin.endgrf ();

     Dislin.shdpat (16);
     Dislin.labels ("data","pie");
     Dislin.labclr (255,"pie");
     Dislin.chnpie ("none");
     Dislin.pieclr (ic1ray,ic2ray,5);
     Dislin.pietyp ("3d");
     Dislin.axspos (300,2700);
     Dislin.piegrf (cbuf,0,y2ray,5);       
     Dislin.disfin ();
  }
}

---

3-D Bars / BARS3D / Java

import de.dislin.Dislin;

public class bars3d {
  public static void main (String args []) {

    float xray []  = {1.0f, 3.0f, 8.0f, 1.5f, 9.0f, 6.3f, 
                      5.8f, 2.3f, 8.1f, 3.5f, 2.2f, 8.7f,
                      9.2f, 4.8f, 3.4f, 6.9f, 7.5f, 3.8f};
    float  yray [] = {5.0f, 8.0f, 3.5f, 2.0f, 7.0f, 1.0f,
                      4.3f, 7.2f, 6.0f, 8.5f, 4.1f, 5.0f,
                      7.3f, 2.8f, 1.6f, 8.9f, 9.5f, 3.2f};
    float z1ray [] = {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 
                      0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
                      0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f};
    float z2ray [] = {4.0f, 5.0f, 3.0f, 2.0f, 3.5f, 4.5f, 
                      2.0f, 1.6f, 3.8f, 4.7f, 2.1f, 3.5f,
                      1.9f, 4.2f, 4.9f, 2.8f, 3.6f, 4.3f};
    int icray [] = {30, 30, 30, 30, 30, 30, 100, 100, 100, 100,
         100, 100, 170, 170, 170, 170, 170, 170};
    int n = 18, i;
    String cbuf = "";

    float xwray [] = new float [n];

    float ywray [] = new float [n];

    for (i = 0; i < n; i++)
    { xwray[i] = 0.5f;
      ywray[i] = 0.5f;
    }

    Dislin.scrmod ("revers");
    Dislin.metafl ("xwin");
    Dislin.setpag ("da4p");
    Dislin.disini ();
    Dislin.hwfont ();
    Dislin.pagera ();

    Dislin.axspos (200, 2600);
    Dislin.axslen (1800, 1800);

    Dislin.name   ("X-axis", "X");
    Dislin.name   ("Y-axis", "Y");
    Dislin.name   ("Z-axis", "Z");

    Dislin.titlin ("3-D Bars / BARS3D",3);
    Dislin.labl3d ("hori");

    Dislin.graf3d (0.f, 10.f, 0.f, 2.f, 0.f, 10.f, 0.f, 2.f,
                   0.f, 5.f, 0.f, 1.f);
    Dislin.grid3d (1,1, "bottom");

    Dislin.bars3d (xray, yray, z1ray, z2ray, xwray, 
                   ywray, icray, n);

    Dislin.legini (cbuf, 3, 20);
    Dislin.legtit (" ");
    Dislin.legpos (1350, 1150);
    Dislin.leglin (cbuf, "First", 1);
    Dislin.leglin (cbuf, "Second", 2);
    Dislin.leglin (cbuf, "Third", 3);
    Dislin.legend (cbuf, 3);

    Dislin.height (50);
    Dislin.title ();
    Dislin.disfin ();
  }
}

---

Shading Patterns / Java

import de.dislin.Dislin;

public class areaf {
  public static void main (String args []) {
    int i, j, k, ii, nl, nx, ny, nx0 = 335, ny0 = 350, iclr = 0;
    int ix  [] = {0, 300, 300,   0};
    int iy  [] = {0,   0, 400, 400};
    int ixp [] = {0, 0, 0, 0};
    int iyp [] = {0, 0, 0, 0};
    String ctit = "Shading Patterns (AREAF)";

    Dislin.scrmod ("revers");
    Dislin.metafl ("cons");
    Dislin.disini ();
    Dislin.setvlt ("small");
    Dislin.pagera ();
    Dislin.complx ();

    Dislin.height (50);
    nl = Dislin.nlmess (ctit);
    Dislin.messag (ctit, (2970 - nl)/2, 200);

    for (i = 0; i < 3; i++) {
      ny = ny0 + i * 600;
      for (j = 0; j < 6; j++) {
        nx = nx0 + j * 400;
        ii = i * 6 + j;
        Dislin.shdpat (ii);
        iclr++;
        Dislin.setclr (iclr);
        for (k = 0; k < 4; k++) {
          ixp[k] = ix[k] + nx;
          iyp[k] = iy[k] + ny;
        }

        Dislin.areaf (ixp, iyp, 4);
        nl = Dislin.nlnumb (ii, -1);
        nx = nx + (300 - nl) / 2;
        Dislin.color ("foreground");
        Dislin.number (ii, -1, nx, ny + 460); 
      }
    }
    Dislin.disfin ();
  }
}

---

3-D Colour Plot / Java

import de.dislin.Dislin;

public class color3d {
  public static void main (String args []) {
     int n = 50, m = 50, i, j;
     float zmat []  = new float [n*m];

     String ctit1 = "3-D Colour Plot of the Function";
     String ctit2 = "F(X,Y) = 2*SIN(X)*SIN(Y)";

     double x, y;
     double fpi = 3.1415926/180.;
     double stepx = 360. / (n-1);
     double stepy = 360. / (m-1);
     for (i = 0; i < n; i++) {
       x = i * stepx;
       for (j = 0; j < m; j++) {
         y = j * stepy;
         zmat[i*m+j] = (float) (2 * Math.sin(x*fpi)* Math.sin(y*fpi));
       }
     }

     Dislin.scrmod ("revers");       
     Dislin.metafl ("cons");
     Dislin.disini ();
     Dislin.pagera ();
     Dislin.hwfont ();

     Dislin.titlin (ctit1, 1);
     Dislin.titlin (ctit2, 3);
         
     Dislin.name   ("X-axis", "x");
     Dislin.name   ("Y-axis", "y");
     Dislin.name   ("Z-axis", "z");

     Dislin.intax  ();
     Dislin.autres (n, m);
     Dislin.axspos (300, 1850);
     Dislin.ax3len (2200, 1400, 1400);

     Dislin.graf3  (0.f, 360.f, 0.f, 90.f,
                    0.f, 360.f, 0.f, 90.f,
                    -2.f, 2.f, -2.f, 1.f);
     Dislin.crvmat (zmat, n, m, 1, 1);
     Dislin.height (50);
     Dislin.title  ();
     Dislin.disfin ();
  }
}

---

Surface Plot / Java

import de.dislin.Dislin;

public class surface {
  public static void main (String args []) {
     int n = 50, m = 50, i, j;
     float zmat []  = new float [n*m];

     double x, y;
     double fpi = 3.1415926/180.;
     double stepx = 360. / (n-1);
     double stepy = 360. / (m-1);
     for (i = 0; i < n; i++) {
       x = i * stepx;
       for (j = 0; j < m; j++) {
         y = j * stepy;
         zmat[i*m+j] = (float) (2 * Math.sin(x*fpi)* Math.sin(y*fpi));
       }
     }

     Dislin.scrmod ("revers");       
     Dislin.metafl ("cons");
     Dislin.setpag ("da4p");
     Dislin.disini ();
     Dislin.pagera ();
     Dislin.complx ();

     Dislin.axspos (200, 2600);
     Dislin.axslen (1800, 1800);
         
     Dislin.name   ("X-axis", "x");
     Dislin.name   ("Y-axis",  "y");
     Dislin.name   ("Z-axis",  "z");

     Dislin.titlin ("Surface Plot (SURMAT)", 1);
     Dislin.titlin ("F(X,Y) = 2*SIN(X)*SIN(Y)", 3);

     Dislin.view3d (-5.f, -5.f, 4.f, "abs");
     Dislin.graf3d (0.f, 360.f, 0.f, 90.f,
                    0.f, 360.f, 0.f, 90.f,
                    -3.f, 3.f, -3.f, 1.f);
     Dislin.height (50);
     Dislin.title  ();
 
     Dislin.color  ("green");
     Dislin.surmat (zmat, n, m, 1, 1);
     Dislin.disfin ();
  }
}

---

Shaded Surface Plot / Java

import de.dislin.Dislin;

public class surface {
  public static void main (String args []) {
     int n = 50, m = 50, i, j;
     float zmat []  = new float [n*m];
     float xray []  = new float [n];
     float yray []  = new float [m];

     double x, y;
     double fpi = 3.1415926/180.;
     double stepx = 360. / (n-1);
     double stepy = 360. / (m-1);
     for (i = 0; i < n; i++) {
       x = i * stepx;
       xray[i] = x;
       for (j = 0; j < m; j++) {
         y = j * stepy;
         yray[j] = y;
         zmat[i*m+j] = (float) (2 * Math.sin(x*fpi)* Math.sin(y*fpi));
       }
     }
       
     Dislin.scrmod ("revers");
     Dislin.metafl ("cons");
     Dislin.setpag ("da4p");
     Dislin.disini ();
     Dislin.pagera ();
     Dislin.complx ();

     Dislin.axspos (200, 2600);
     Dislin.axslen (1800, 1800);
         
     Dislin.name   ("X-axis", "x");
     Dislin.name   ("Y-axis",  "y");
     Dislin.name   ("Z-axis",  "z");

     Dislin.titlin ("Shaded Surface Plot", 1);
     Dislin.titlin ("F(X,Y) = 2*SIN(X)*SIN(Y)", 3);

     Dislin.view3d (-5.f, -5.f, 4.f, "abs");
     Dislin.graf3d (0.f, 360.f, 0.f, 90.f,
                    0.f, 360.f, 0.f, 90.f,
                    -3.f, 3.f, -3.f, 1.f);
     Dislin.height (50);
     Dislin.title  ();
 
     Dislin.shdmod  ("smooth", "surface");
     Dislin.surshd (xray, n, yray, m, zmat);
     Dislin.disfin ();
  }
}

---

Contour Plot / Java

import de.dislin.Dislin;

public class contour {
  public static void main (String args []) {
     int n = 50, m = 50, i, j;
     float zlev;
     float zmat []  = new float [n*m];
     float xray []  = new float [n];
     float yray []  = new float [m];

     String ctit1 = "Contour Plot";
     String ctit2 = "F(X,Y) = 2*SIN(X)*SIN(Y)";

     double x, y;
     double fpi = 3.1415926/180.;
     double stepx = 360. / (n-1);
     double stepy = 360. / (m-1);

     for (i = 0; i < n; i++) {
        xray[i] = (float) (i * stepx);
     }

     for (j = 0; j < m; j++) {
        yray[j] = (float) (j * stepy);
     }

     for (i = 0; i < n; i++) {
       x = xray[i] * fpi;
       for (j = 0; j < m; j++) {
         y = yray[j] * fpi;
         zmat[i*m+j] = (float) (2 * Math.sin(x)* Math.sin(y));
       }
     }
       
     Dislin.scrmod ("revers");
     Dislin.metafl ("cons");
     Dislin.setpag ("da4p");
     Dislin.disini ();
     Dislin.pagera ();
     Dislin.complx ();

     Dislin.titlin (ctit1, 1);
     Dislin.titlin (ctit2, 3);
     Dislin.intax  ();
     Dislin.axspos (450, 2650);
         
     Dislin.name   ("X-axis", "x");
     Dislin.name   ("Y-axis", "y");

     Dislin.graf   (0.f, 360.f, 0.f, 90.f,
                    0.f, 360.f, 0.f, 90.f);
     Dislin.height (50);
     Dislin.title  ();

     Dislin.height (30);
     for (i = 0; i < 9; i++) {
       zlev = -2.f + i * 0.5f;
       if (i == 4) {
         Dislin.labels ("none", "contur");
       }
       else {
         Dislin.labels ("float", "contur");
       }
       Dislin.setclr ((i+1) * 28);
       Dislin.contur (xray, n, yray, m, zmat, zlev);
     }
     Dislin.disfin ();
  }
}

---

Shaded Contour Plot / Java

import de.dislin.Dislin;

public class conshd {
  public static void main (String args []) {
     int n = 50, m = 50, i, j;
     float zmat []  = new float [n*m];
     float xray []  = new float [n];
     float yray []  = new float [m];
     float zlev []  = new float [12];

     String ctit1 = "Shaded Contour Plot";
     String ctit2 = "F(X,Y) = (X[2$ - 1)[2$ + (Y[2$ - 1)[2$";

     double x, y;
     double stepx = 1.6 / (n-1);
     double stepy = 1.6 / (m-1);

     for (i = 0; i < n; i++) {
        xray[i] = (float) (i * stepx);
     }

     for (j = 0; j < m; j++) {
        yray[j] = (float) (j * stepy);
     }

     for (i = 0; i < n; i++) {
       x = xray[i] * xray[i] - 1.;
       x *= x;
       for (j = 0; j < m; j++) {
         y = yray[j] * yray[j] - 1;
         zmat[i*m+j] = (float) (x + y * y);
       }
     }
       
     Dislin.scrmod ("revers");
     Dislin.metafl ("cons");
     Dislin.setpag ("da4p");
     Dislin.disini ();
     Dislin.pagera ();
     Dislin.complx ();
     Dislin.mixalf ();

     Dislin.titlin (ctit1, 1);
     Dislin.titlin (ctit2, 3);
     Dislin.name   ("X-axis", "x");
     Dislin.name   ("Y-axis", "y");
     Dislin.axspos (450, 2670);
     Dislin.shdmod ("poly", "contur");         

     Dislin.graf   (0.f, 1.6f, 0.f, 0.2f,
                    0.f, 1.6f, 0.f, 0.2f);
     for (i = 0; i < 12; i++) {
       zlev[11-i] = 0.1f + i * 0.1f;
     }

     Dislin.conshd (xray, n, yray, m, zmat, zlev, 12);

     Dislin.height (50);
     Dislin.title  ();
     Dislin.disfin ();
  }
}

---

Shaded Surface / Contour Plot / Java

import de.dislin.Dislin;

public class surf3 {
  public static void main (String args []) {
     int n = 50, m = 50, i, j, nlev = 20;
     float zmat []  = new float [n*m];
     float xray []  = new float [n];
     float yray []  = new float [m];
     float zlev []  = new float [nlev];

     double x, y, step;
     double fpi = 3.1415926/180.;
     double stepx = 360. / (n-1);
     double stepy = 360. / (m-1);
     for (i = 0; i < n; i++) {
       x = i * stepx;
       xray[i] = (float) x;
       for (j = 0; j < m; j++) {
         y = j * stepy;
         yray[j] = (float) y;
         zmat[i*m+j] = (float) (2 * Math.sin(x*fpi)* Math.sin(y*fpi));
       }
     }
       
     Dislin.scrmod ("revers");
     Dislin.metafl ("cons");
     Dislin.setpag ("da4p");
     Dislin.disini ();
     Dislin.pagera ();
     Dislin.hwfont ();

     Dislin.axspos (200, 2600);
     Dislin.axslen (1800, 1800);
         
     Dislin.name   ("X-axis", "x");
     Dislin.name   ("Y-axis",  "y");
     Dislin.name   ("Z-axis",  "z");

     Dislin.titlin ("Shaded Surface / Contour Plot", 1);
     Dislin.titlin ("F(X,Y) = 2*SIN(X)*SIN(Y)", 3);

     Dislin.graf3d (0.f, 360.f, 0.f, 90.f,
                    0.f, 360.f, 0.f, 90.f,
                    -2.f, 2.f, -2.f, 1.f);
     Dislin.height (50);
     Dislin.title  ();
 
     Dislin.grfini (-1.f, -1.f, -1.f, 1.f, -1.f, -1.f, 1.f, 1.f, -1.f);
     Dislin.nograf ();
     Dislin.graf (0.f, 360.f, 0.f, 90.f, 0.f, 360.f, 0.f, 90.f);
     step = 4. / nlev;
     for (i = 0; i < nlev; i++)
       zlev[i] = (float) (-2.0 + i * step); 

     Dislin.conshd (xray, n, yray, n, zmat, zlev, nlev);
     Dislin.box2d ();
     Dislin.reset ("nograf");
     Dislin.grffin ();

     Dislin.shdmod  ("smooth", "surface");
     Dislin.surshd (xray, n, yray, m, zmat);
     Dislin.disfin ();
  }
}

---

Spheres and Tubes / Java

import de.dislin.Dislin;

public class spheres {
  public static void main (String args []) {

     int i, j1, j2, iret;
     float x[] = {10.f, 20.f, 10.f, 20.f, 5.f, 15.f, 25.f, 5.f, 15.f, 25.f, 
                   5.f, 15.f, 25.f, 10.f, 20.f, 10.f, 20.f};
     float y[] = {10.f, 10.f, 20.f, 20.f, 5.f, 5.f, 5.f, 15.f, 15.f, 15.f,
                  25.f, 25.f, 25.f, 10.f, 10.f, 20.f, 20.f};
     float z[] = {5.f, 5.f, 5.f, 5.f, 15.f, 15.f, 15.f, 15.f, 15.f, 15.f,
                 15.f, 15.f, 15.f, 25.f, 25.f, 25.f, 25.f};  

     int idx[] = {1, 2, 1, 3, 3, 4, 2, 4, 5, 6, 6, 7, 8, 9, 9, 10,
                 11, 12, 12, 13,  5, 8, 8, 11, 6, 9, 9, 12, 7, 10,
                 10, 13,  14, 15, 16, 17, 14, 16, 15, 17,
                  1, 5, 2, 7, 3, 11, 4, 13, 5, 14, 7, 15, 11, 16, 13, 17};

     Dislin.setpag ("da4p");
     Dislin.scrmod ("revers");
     Dislin.metafl ("cons");
     Dislin.disini ();
     Dislin.pagera ();
     Dislin.hwfont ();
     Dislin.light  ("on");
     Dislin.matop3 (0.02f, 0.02f, 0.02f, "specular");

     Dislin.clip3d ("none");
     Dislin.axspos (0, 2500);
     Dislin.axslen (2100, 2100);

     Dislin.htitle (50);
     Dislin.titlin ("Spheres and Tubes", 4);

     Dislin.name   ("X-axis", "x");
     Dislin.name   ("Y-axis", "y");
     Dislin.name   ("Z-axis", "z");

     Dislin.labdig (-1, "xyz");
     Dislin.labl3d ("hori");
     Dislin.graf3d (0.f, 30.f, 0.f, 5.f, 0.f, 30.f, 0.f, 5.f, 
                    0.f, 30.f, 0.f, 5.f);
     Dislin.title ();

     Dislin.shdmod ("smooth", "surface");
     iret = Dislin.zbfini();
     Dislin.matop3 (1.0f, 0.0f, 0.0f, "diffuse");
     for (i = 0; i < 17; i++)
        Dislin.sphe3d (x[i], y[i], z[i], 2.0f, 50, 25);

     Dislin.matop3 (0.0f, 1.0f, 0.0f, "diffuse");
     for (i = 0; i < 56; i += 2)
     { j1 = idx[i] - 1;
       j2 = idx[i+1] - 1;
       Dislin.tube3d (x[j1], y[j1], z[j1], x[j2], y[j2], z[j2], 0.5f, 5, 5); 
     }

     Dislin.zbffin ();
     Dislin.disfin ();
  }
}

---

Solids / Java

import de.dislin.Dislin;

public class solids {
  public static void main (String args []) {
     int iret;

     Dislin.setpag ("da4p");
     Dislin.scrmod ("revers");
     Dislin.metafl ("cons");
     Dislin.disini ();
     Dislin.pagera ();
     Dislin.hwfont ();
     Dislin.light  ("on");
     Dislin.litop3 (1,0.5f, 0.5f, 0.5f, "ambient");

     Dislin.clip3d ("none");
     Dislin.axspos (0, 2500);
     Dislin.axslen (2100, 2100);

     Dislin.htitle (60);
     Dislin.titlin ("Some Solids", 4);

     Dislin.nograf ();
     Dislin.graf3d (-5.f, 5.f, -5.f, 2.f, -5.f, 5.f, -5.f, 2.f, 
                    -5.f, 5.f, -5.f, 2.f);
     Dislin.title ();
 
     Dislin.shdmod ("smooth", "surface"); 
     iret = Dislin.zbfini();

     Dislin.matop3 (1.0f, 0.5f, 0.0f, "diffuse");
     Dislin.tube3d (-3.f, -3.f, 8.0f, 2.f, 3.f, 5.5f, 1.f, 40, 20); 

     Dislin.rot3d  (-60.f, 0.f, 0.f); 
     Dislin.matop3 (1.0f, 0.0f, 1.0f, "diffuse");
     Dislin.setfce ("bottom");
     Dislin.matop3 (1.0f, 0.0f, 0.0f, "diffuse");
     Dislin.cone3d (-3.f, -3.f, 3.5f, 2.f, 3.f, 3.f, 40, 20);
     Dislin.setfce ("top");

     Dislin.rot3d  (0.f, 0.f, 0.f); 
     Dislin.matop3 (0.0f, 1.0f, 1.0f, "diffuse");
     Dislin.plat3d (4.f, 4.f, 3.f, 3.f, "icos");

     Dislin.rot3d  (0.f, 0.f, 0.f); 
     Dislin.matop3 (1.0f, 1.0f, 0.0f, "diffuse");
     Dislin.sphe3d (0.f, 0.f, 0.f, 3.f, 40, 20);

     Dislin.rot3d  (0.f, 0.f, -20.f); 
     Dislin.matop3 (0.0f, 0.0f, 1.0f, "diffuse");
     Dislin.quad3d (-4.f, -4.f, -3.f, 3.f, 3.f, 3.f);

     Dislin.rot3d  (0.f, 0.f, 30.f); 
     Dislin.matop3 (1.0f, 0.3f, 0.3f, "diffuse");
     Dislin.pyra3d (-2.f, -5.f, -10.f, 3.f, 5.f, 5.f, 4);

     Dislin.rot3d  (0.f, 0.f, 0.f); 
     Dislin.matop3 (1.0f, 0.0f, 0.0f, "diffuse");
     Dislin.torus3d (7.f, -3.f, -2.f, 1.5f, 3.5f, 1.5f, 0.f, 360.f, 40, 20);
     Dislin.rot3d  (0.f, 90.f, 0.f); 

     Dislin.matop3 (0.0f, 1.0f, 0.0f, "diffuse");
     Dislin.torus3d (7.f, -5.f, -2.f, 1.5f, 3.5f, 1.5f, 0.f, 360.f, 40, 20);
     Dislin.zbffin ();
     Dislin.disfin ();
  }
}

---

Map Plot / Java

import de.dislin.Dislin;

public class world {
  public static void main (String args []) {

     Dislin.scrmod ("revers");
     Dislin.metafl ("cons");
     Dislin.disini ();
     Dislin.pagera ();
     Dislin.complx ();

     Dislin.frame  (3);
     Dislin.axspos (400, 1850);
     Dislin.axslen (2400, 1400);
         
     Dislin.name   ("Longitude", "x");
     Dislin.name   ("Latitude",  "y");
     Dislin.titlin ("World Coastlines and Lakes",3);

     Dislin.labels ("map","xy");
     Dislin.grafmp (-180.f, 180.f, -180.f, 90.f,
                     -90.f,  90.f,  -90.f, 30.f);

     Dislin.gridmp (1, 1);
     Dislin.color  ("green");
     Dislin.world  ();
   
     Dislin.color  ("fore");
     Dislin.height (50);
     Dislin.title  (); 
     Dislin.disfin ();
  }
}

---

TeX Instructions for Mathematical Formulas / Java

import de.dislin.Dislin;

public class tex {
  public static void main (String args []) {
     int nl;
     String cstr = "TeX Instructions for Mathematical Formulas";
  
     Dislin.scrmod ("revers");
     Dislin.metafl ("cons");
     Dislin.setpag ("da4p");
     Dislin.disini ();
     Dislin.pagera ();
     Dislin.complx ();
     Dislin.height (40);

     nl = Dislin.nlmess (cstr);
     Dislin.messag (cstr, (2100 - nl)/2, 100);
  
     Dislin.texmod ("on");
     Dislin.messag ("$\\frac{1}{x+y}$", 150, 400);
     Dislin.messag ("$\\frac{a^2 - b^2}{a+b} = a - b$", 1200, 400);
  
     Dislin.messag ("$r = \\sqrt{x^2 + y^2}", 150, 700);
     Dislin.messag ("$\\cos \\phi = \\frac{x}{\\sqrt{x^2 + y^2}}$", 
                    1200, 700);

     Dislin.messag ("$\\Gamma(x) = \\int_0^\\infty e^{-t}t^{x-1}dt$", 
                    150, 1000);
     Dislin.messag ("$\\lim_{x \\to \\infty} (1 + \\frac{1}{x})^x = e$",
                    1200, 1000);

     Dislin.messag ("$\\mu = \\sum_{i=1}^n x_i p_i$", 150, 1300);
     Dislin.messag ("$\\mu = \\int_{-\\infty}^ \\infty x f(x) dx$", 
                    1200, 1300);

     Dislin.messag ("$\\overline{x} = \\frac{1}{n} \\sum_{i=1}^n x_i$",
                    150, 1600);
     Dislin.messag ("$s^2 = \\frac{1}{n-1} \\sum_{i=1}^n (x_i - \\overline{x})^2$", 
                    1200, 1600);

     Dislin.messag ("$\\sqrt[n]{\\frac{x^n - y^n}{1 + u^{2n}}}$", 150, 1900);  
     Dislin.messag ("$\\sqrt[3]{-q + \\sqrt{q^2 + p^3}}$", 1200, 1900);

     Dislin.messag ("$\\int \\frac{dx}{1+x^2} = \\arctan x + C$", 150, 2200);
     Dislin.messag ("$\\int \\frac{dx}{\\sqrt{1+x^2}} = {\\rm arsinh} x + C$",
                    1200, 2200);

     Dislin.messag ("$\\overline{P_1P_2} = \\sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}$",
                    150,2500);
     Dislin.messag ("$x = \\frac{x_1 + \\lambda x_2}{1 + \\lambda}$", 
                    1200, 2500);
     Dislin.disfin ();
  }
}