DISLIN Beispiele / C

Demonstration of CURVE / C

#include <stdio.h>
#include <math.h>
#include "dislin.h"

int main ()
{ int n = 100, i, ic;
double fpi = 3.1415926 / 180.0, step, x;
float  xray[100], y1ray[100], y2ray[100];

step = 360. / (n - 1);

for (i = 0; i < n; i++)
{ xray[i] = (float) (i * step);
x = xray[i] * fpi;
y1ray[i] = (float) sin (x);
y2ray[i] = (float) cos (x);
}

metafl ("cons");
scrmod ("revers");
disini ();
pagera ();
complx ();
axspos (450, 1800);
axslen (2200, 1200);

name   ("X-axis", "x");
name   ("Y-axis", "y");

labdig (-1, "x");
ticks  (9, "x");
ticks  (10, "y");

titlin ("Demonstration of CURVE", 1);
titlin ("SIN(X), COS(X)", 3);

ic =   intrgb (0.95,0.95,0.95);
axsbgd (ic);

graf   (0.0, 360.0, 0.0, 90.0, -1.0, 1.0, -1.0, 0.5);
setrgb (0.7, 0.7, 0.7);
grid   (1, 1);

color  ("fore");
height (50);
title  ();

color  ("red");
curve  (xray, y1ray, n);
color  ("green");
curve  (xray, y2ray, n);
disfin ();
return 0;
}


Polar Plots / C

#include <stdio.h>
#include <math.h>
#include "dislin.h"

int main ()
{ int n = 300, m = 10, i, ic;
double f = 3.1415926 / 180.0, step, a;
float  xray[300], yray[300], x2[10], y2[10];

step = 360. / (n - 1);

for (i = 0; i < n; i++)
{ a = i * step * f;
yray[i] = (float) a;
xray[i] = (float) sin (5 * a);
}

for (i = 0; i < m; i++)
{ x2[i] = i + 1;
y2[i] = i + 1;
}

setpag ("da4p");
metafl ("cons");
scrmod ("revers");
disini ();
pagera ();
hwfont ();
axspos (450,1800);

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

ic = intrgb (0.95, 0.95, 0.95);
axsbgd (ic);

grafp  (1.0, 0.0, 0.2, 0.0, 30.0);
color  ("blue");
curve  (xray, yray, n);
color  ("fore");
htitle (50);
title  ();
endgrf ();

labdig (-1, "X");
axsorg (1050, 2250);
labtyp ("VERT", "Y");
grafp  (10.0, 0.0, 2.0, 0.0, 30.0);
barwth (-5.0);
polcrv ("FBARS");
color  ("blue");
curve  (x2, y2, m);
disfin ();
return 0;
}


Symbols / C

#include <stdio.h>
#include "dislin.h"

int main ()
{ int nl, ny, i, nxp;
char ctit[] = "Symbols", cstr[80];

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

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

height (50);
hsymbl (120);

ny = 150;

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

nl = intcha (i, cstr);
nl = nlmess (cstr) / 2;
messag (cstr, nxp - nl, ny + 150);
symbol (i, nxp, ny);
}
disfin ();
return 0;
}


Interpolation Methods / C

#include <stdio.h>
#include "dislin.h"

int main ()
{ int nya = 2700, i, nx, ny, ic;
float  x[] = {0.0, 1.0, 3.0, 4.5, 6.0, 8.0, 9.0, 11.0, 12.0, 12.5,
13.0, 15.0, 16.0, 17.0, 19.0, 20.0},
y[] = {2.0, 4.0, 4.5, 3.0, 1.0, 7.0, 2.0, 3.0, 5.0, 2.0, 2.5,
2.0, 4.0, 6.0, 5.5, 4.0};
char *cpol[6] = {"SPLINE", "STEM", "BARS", "STAIRS", "STEP", "LINEAR"};
char *ctit    = "Interpolation Methods";

setpag ("da4p");
metafl ("cons");
scrmod ("revers");
disini ();
complx ();
pagera ();
incmrk (1);
hsymbl (25);
titlin (ctit, 2);
axslen (1500, 350);
setgrf ("line", "line", "line", "line");
ic = intrgb (1.0, 1.0, 0.0);
axsbgd (ic);

for (i = 0; i < 6; i++)
{ axspos (350, nya - i * 350);
polcrv (cpol[i]);
marker(16);

graf   (0.0, 20.0, 0.0, 5.0, 0.0, 10.0, 0.0, 5.0);
nx = nxposn (1.0);
ny = nyposn (8.0);
messag (cpol[i], nx, ny);
color  ("red");
curve  (x, y, 16);
color  ("fore");

if (i == 5)
{ height (50);
title  ();
}
endgrf ();
}
disfin ();
return 0;
}


Bar Graphs / C

#include <stdio.h>
#include "dislin.h"

int main ()
{ int nya = 2700, i;
char   *ctit = "Bar Graphs (BARS)", cbuf[25];

float  x[9]  = {1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0},
y[9]  = {0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0},
y1[9] = {1.0, 1.5, 2.5, 1.3, 2.0, 1.2, 0.7, 1.4, 1.1},
y2[9] = {2.0, 2.7, 3.5, 2.1, 3.2, 1.9, 2.0, 2.3, 1.8},
y3[9] = {4.0, 3.5, 4.5, 3.7, 4.0, 2.9, 3.0, 3.2, 2.6};

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

legini (cbuf, 3, 8);
leglin (cbuf, "FIRST", 1);
leglin (cbuf, "SECOND", 2);
leglin (cbuf, "THIRD", 3);
legtit (" ");
shdpat (5);
for (i = 1; i <= 3; i++)
{ if (i >  1) labels ("none", "x");
axspos (300, nya - (i - 1) * 800);
graf   (0.0, 10.0, 0.0, 1.0, 0.0, 5.0, 0.0, 1.0);

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

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

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

endgrf ();
}
disfin ();
return 0;
}


Pie Charts / C

#include <stdio.h>
#include "dislin.h"

int main ()
{ int nya = 2800, i;
char     *ctit = "Pie Charts (PIEGRF)", cbuf[41];
float  xray[5] = {1.0, 2.5, 2.0, 2.7, 1.8};

scrmod ("revers");
setpag ("da4p");
metafl ("cons");
disini ();
pagera ();
complx ();
axslen (1600, 1000);
titlin (ctit, 2);
chnpie ("both");

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

patcyc (1, 7);
patcyc (2, 4);
patcyc (3, 13);
patcyc (4, 3);
patcyc (5, 5);

for (i = 0; i < 2; i++)
{ axspos (250, nya - i * 1200);
if (i == 1)
{ labels ("data", "pie");
labpos ("external", "pie");
}

piegrf (cbuf, 1, xray, 5);

if (i == 1)
{ height (50);
title  ();
}
endgrf ();
}
disfin ();
return 0;
}


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

#include <stdio.h>
#include "dislin.h"

int main ()
{ char cbuf[80];
float  xray[5]  = {2.0, 4.0, 6.0, 8.0, 10.0},
y1ray[5] = {0.0, 0.0, 0.0, 0.0, 0.0},
y2ray[5] = {3.2, 1.5, 2.0, 1.0, 3.0};
int  ic1ray[5]  = {50, 150, 100, 200, 175},
ic2ray[5]  = {50, 150, 100, 200, 175};

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

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

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

barwth (0.5);
bartyp ("3dvert");
labels ("second", "bars");
labpos ("outside", "bars");
labclr (255, "bars");
graf   (0.0, 12.0, 0.0, 2.0, 0.0, 5.0, 0.0, 1.0);
title  ();
color  ("red");
bars   (xray, y1ray, y2ray, 5);
endgrf ();

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


3-D Bars / BARS3D / C

#include <stdio.h>
#include "dislin.h"

#define N 18

int main ()
{ float xwray[N],ywray[N];
int  i;
char cbuf[80];
float  xray[N]  = {1.0, 3.0, 8.0, 1.5, 9.0, 6.3, 5.8, 2.3, 8.1, 3.5,
2.2, 8.7, 9.2, 4.8, 3.4, 6.9, 7.5, 3.8};
float  yray[N]  = {5.0, 8.0, 3.5, 2.0, 7.0, 1.0, 4.3, 7.2, 6.0, 8.5,
4.1, 5.0, 7.3, 2.8, 1.6, 8.9, 9.5, 3.2};
float  z1ray[N] = {0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0};
float  z2ray[N] = {4.0, 5.0, 3.0, 2.0, 3.5, 4.5, 2.0, 1.6, 3.8, 4.7,
2.1, 3.5, 1.9, 4.2, 4.9, 2.8, 3.6, 4.3};
int icray[N]    = {30, 30, 30, 30, 30, 30, 100, 100, 100, 100,
100, 100, 170, 170, 170, 170, 170, 170};

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

scrmod ("revers");
setpag ("da4p");
metafl ("cons");
disini ();
pagera ();
hwfont ();
axspos (200, 2600);
axslen (1800, 1800);

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

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

graf3d (0.0, 10.0, 0.0, 2.0, 0.0, 10.0, 0.0, 2.0,
0.0, 5.0, 0.0, 1.0);
grid3d (1, 1, "bottom");
bars3d (xray, yray, z1ray, z2ray, xwray, ywray, icray, N);

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

height (50);
title  ();
disfin ();
return 0;
}


#include <stdio.h>
#include "dislin.h"

int main ()
{ int   ixp[4], iyp[4], nl, nx, nx0 = 335, ny0 = 350, ny, i, j, ii, k, iclr;
int  ix[4] = {0, 300, 300, 0}, iy[4] = {0, 0, 400, 400};
char *ctit = "Shading Patterns (AREAF)", cstr[80];

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

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

iclr = 0;
for (i = 0; i < 3; i++)
{ ny = ny0 +i * 600;
for (j = 0; j < 6; j++)
{ nx = nx0 + j * 400;
ii = i * 6 + j;
nl = intcha (ii, cstr);
shdpat (ii);

iclr = iclr % 16;
iclr++;
setclr (iclr);

for (k = 0; k < 4; k++)
{ ixp[k] = ix[k] + nx;
iyp[k] = iy[k] + ny;
}
areaf  (ixp, iyp, 4);

nl  = nlmess (cstr);
nx += (300 - nl) / 2;
messag (cstr, nx, ny + 460);
}
}
disfin ();
return 0;
}



3-D Colour Plot / C

#include <stdio.h>
#include <math.h>
#include "dislin.h"

float zmat[100][100];

int main ()
{ int n = 100, i, j;
double   fpi = 3.1415927 / 180.0, step, x, y;

step = 360.0 / (n - 1);
for (i = 0; i < n; i++)
{ x = i * step;
for (j = 0; j < n; j++)
{ y = j * step;
zmat[i][j] = (float) (2 * sin (x * fpi) *sin (y * fpi));
}
}

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

titlin ("3-D Colour Plot of the Function", 2);
titlin ("F(X,Y) = 2 * SIN(X) * SIN(Y)", 4);

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

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

graf3  (0.0, 360.0, 0.0, 90.0, 0.0, 360.0, 0.0, 90.0,
-2.0, 2.0, -2.0, 1.0);
crvmat ((float *) zmat, n, n, 1, 1);

height (50);
title  ();
disfin ();
return 0;
}



Surface Plot / C

#include <stdio.h>
#include <math.h>
#include "dislin.h"

float zmat[50][50];

int main ()
{ int n = 50 ,i, j;
double fpi = 3.1415927 / 180.0, step, x, y;
char *ctit1 = "Surface Plot (SURMAT)",
*ctit2 = "F(X,Y) = 2*SIN(X)*SIN(Y)";

step = 360.0 / (n - 1);
for (i = 0; i < n; i++)
{ x = i * step;
for (j = 0; j < n; j++)
{ y = j * step;
zmat[i][j] = (float) (2 * sin (x * fpi) * sin (y * fpi));
}
}

scrmod ("revers");
setpag ("da4p");
metafl ("cons");
disini ();
pagera ();
complx ();
axspos (200, 2600);
axslen (1800, 1800);

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

titlin (ctit1, 2);
titlin (ctit2, 4);

view3d (-5.0, -5.0, 4.0, "abs");
graf3d (0.0, 360.0, 0.0, 90.0, 0.0, 360.0, 0.0, 90.0,
-3.0, 3.0, -3.0, 1.0);
height (50);
title  ();

color  ("green");
surmat ((float *) zmat, 50, 50, 1, 1);
disfin ();
return 0;
}


#include <stdio.h>
#include <math.h>
#include "dislin.h"

float zmat[50][50], xray[50], yray[50];

int main ()
{ int n = 50 ,i, j;
double fpi = 3.1415927 / 180.0, step, x, y;
char *ctit1 = "Shaded Surface Plot",
*ctit2 = "F(X,Y) = 2*SIN(X)*SIN(Y)";

step = 360.0/ (n - 1);
for (i = 0; i < n; i++)
{ x = i * step;
xray[i] = x;
for (j = 0; j < n; j++)
{ y = j * step;
yray[j] = y;
zmat[i][j] = (float) (2 * sin (x * fpi) * sin (y * fpi));
}
}

scrmod ("revers");
setpag ("da4p");
metafl ("cons");
disini ();
pagera ();
complx ();
axspos (200, 2600);
axslen (1800, 1800);

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

titlin (ctit1, 2);
titlin (ctit2, 4);

view3d (-5.0, -5.0, 4.0, "abs");
graf3d (0.0, 360.0, 0.0, 90.0, 0.0, 360.0, 0.0, 90.0,
-3.0, 3.0, -3.0, 1.0);
height (50);
title  ();

shdmod ("smooth", "surface");
surshd (xray, n, yray, n, (float *) zmat);
disfin ();
return 0;
}


Contour Plot / C

#include <stdio.h>
#include <math.h>
#include "dislin.h"

float xray[50], yray[50], zmat[50][50];

int main ()
{ int n = 50, i, j;
double  fpi = 3.14159 / 180.0, step, x, y;
float   zlev;

step = 360.0/ (n - 1);

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

for (i = 0; i < n; i++)
{ for (j = 0; j < n; j++)
{ x = xray[i] * fpi;
y = yray[j] * fpi;
zmat[i][j] = (float) (2 * sin (x) * sin (y));
}
}

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

titlin ("Contour Plot", 1);
titlin ("F(X,Y) = 2 * SIN(X) * SIN(Y)", 3);

name   ("X-axis", "x");
name   ("Y-axis", "y");

intax  ();
axspos (450, 2670);
graf   (0.0, 360.0, 0.0, 90.0, 0.0, 360.0, 0.0, 90.0);

height (30);
for (i = 0; i < 9; i++)
{ zlev = (float) (-2.0 + i * 0.5);
setclr ((i + 1) * 25);
if (i == 4)
labels ("none", "contur");
else
labels ("float", "contur");

contur  (xray, n, yray, n,(float *) zmat, zlev);
}

height (50);
color  ("fore");
title  ();
disfin ();
return 0;
}


#include <stdio.h>
#include <math.h>
#include "dislin.h"

float xray[50], yray[50], zmat[50][50];

int main ()
{ int n = 50, i, j;
double step, x, y;
float  zlev[12];

step = 1.6 / (n - 1);
for (i = 0; i < n; i++)
{ x = 0.0 + i * step;
xray[i] = (float) x;
for (j = 0; j < n; j++)
{ y = 0.0 + j * step;
yray[j] = (float) y;
zmat[i][j] = (float) ((x * x - 1.0) * (x * x - 1.0) +
(y * y - 1.0) * (y * y - 1.0));
}
}

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

mixalf ();
titlin ("F(X,Y) = (X[2$- 1)[2$ + (Y[2$- 1)[2$", 3);
name   ("X-axis", "x");
name   ("Y-axis", "y");

shdmod ("poly", "contur");
axspos (450, 2670);
graf   (0.0, 1.6, 0.0, 0.2, 0.0, 1.6, 0.0, 0.2);

for (i = 1; i <= 12; i++)
zlev[12-i] = (float) (0.1 + (i - 1) * 0.1);

conshd (xray, n, yray, n, (float *) zmat, zlev, 12);

height (50);
title  ();
disfin ();
return 0;
}


Shaded Surface / Contour Plot / C

#include <stdio.h>
#include <math.h>
#include "dislin.h"

float zmat[50][50], xray[50], yray[50], zlev[20];

int main ()
{ int n = 50 ,i, j, nlev = 20;
double fpi = 3.1415927 / 180.0, step, x, y;
char *ctit1 = "Shaded Surface / Contour Plot",
*ctit2 = "F(X,Y) = 2*SIN(X)*SIN(Y)";

step = 360.0 / (n - 1);
for (i = 0; i < n; i++)
{ x = i * step;
xray[i] = (float) x;
for (j = 0; j < n; j++)
{ y = j * step;
yray[j] = (float) y;
zmat[i][j] = (float) (2 * sin (x * fpi) * sin (y * fpi));
}
}

scrmod ("revers");
setpag ("da4p");
metafl ("cons");
disini ();
pagera ();
hwfont ();
axspos (200, 2600);
axslen (1800, 1800);

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

titlin (ctit1, 2);
titlin (ctit2, 4);

graf3d (0.0, 360.0, 0.0, 90.0, 0.0, 360.0, 0.0, 90.0,
-2.0, 2.0, -2.0, 1.0);
height (50);
title  ();

grfini (-1.0, -1.0, -1.0, 1.0, -1.0, -1.0, 1.0, 1.0, -1.0);
nograf ();
graf   (0.0, 360.0, 0.0, 90.0, 0.0, 360.0, 0.0, 90.0);
step = 4.0 / nlev;
for (i = 0; i < nlev; i++)
zlev[i] = (float) (-2.0 + i * step);

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

shdmod ("smooth", "surface");
surshd (xray, n, yray, n, (float *) zmat);
disfin ();
return 0;
}


Spheres and Tubes / C

#include <stdio.h>
#include "dislin.h"

int main ()
{ int i, j1, j2, iret;
float  x[17] = {10.0, 20.0, 10.0, 20.0, 5.0, 15.0, 25.0, 5.0, 15.0, 25.0,
5.0, 15.0, 25.0, 10.0, 20.0, 10.0, 20.0};
float  y[17] = {10.0, 10.0, 20.0, 20.0, 5.0, 5.0, 5.0, 15.0, 15.0, 15.0,
25.0, 25.0, 25.0, 10.0, 10.0, 20.0, 20.0};
float  z[17] = {5.0, 5.0, 5.0, 5.0, 15.0, 15.0, 15.0, 15.0, 15.0, 15.0,
15.0, 15.0, 15.0, 25.0, 25.0, 25.0, 25.0};
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};

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

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

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

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

labdig (-1, "xyz");
labl3d ("hori");
graf3d (0.0, 30.0, 0.0, 5.0, 0.0, 30.0, 0.0, 5.0,
0.0, 30.0, 0.0, 5.0);
title  ();

shdmod ("smooth", "surface");

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

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

zbffin ();
disfin ();
return 0;
}


Some Solids / C

#include <stdio.h>
#include "dislin.h"

int main ()
{ int iret;

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

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

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

nograf ();
graf3d (-5.0, 5.0, -5.0, 2.0, -5.0, 5.0, -5.0, 2.0,
-5.0, 5.0, -5.0, 2.0);
title  ();

shdmod ("smooth", "surface");
iret = zbfini ();

matop3 (1.0, 0.5, 0.0, "diffuse");
tube3d (-3.0, -3.0, 8.0, 2.0, 3.0, 5.5, 1.0, 40, 20);

rot3d (-60.0, 0.0, 0.0);
matop3 (1.0, 0.0, 1.0, "diffuse");
setfce ("bottom");
matop3 (1.0, 0.0, 0.0, "diffuse");
cone3d (-3.0, -3.0, 3.5, 2.0, 3.0, 3.0, 40, 20);
setfce ("top");

rot3d (0.0, 0.0, 0.0);
matop3 (0.0, 1.0, 1.0, "diffuse");
plat3d (4.0, 4.0, 3.0, 3.0, "icos");

rot3d (0.0, 0.0, 0.0);
matop3 (1.0, 1.0, 0.0, "diffuse");
sphe3d (0.0, 0.0, 0.0, 3.0, 40, 20);

rot3d (0.0, 0.0, -20.0);
matop3 (0.0, 0.0, 1.0, "diffuse");
quad3d (-4.0, -4.0, -3.0, 3.0, 3.0, 3.0);

rot3d (0.0, 0.0, 30.0);
matop3 (1.0, 0.3, 0.3, "diffuse");
pyra3d (-2.0, -5.0, -10.0, 3.0, 5.0, 5.0, 4);

rot3d (0.0, 0.0, 0.0);
matop3 (1.0, 0.0, 0.0, "diffuse");
torus3d (7.0, -3.0, -2.0, 1.5, 3.5, 1.5, 0.0, 360.0, 40, 20);
rot3d (0.0, 90.0, 0.0);

matop3 (0.0, 1.0, 0.0, "diffuse");
torus3d (7.0, -5.0, -2.0, 1.5, 3.5, 1.5, 0.0, 360.0, 40, 20);
zbffin ();
disfin ();
return 0;
}


Map Plot / C

#include <stdio.h>
#include "dislin.h"

int main ()
{
scrmod ("revers");
metafl ("cons");
disini ();
pagera ();
complx ();

frame  (3);
axspos (400, 1850);
axslen (2400, 1400);

name   ("Longitude", "x");
name   ("Latitude", "y");
titlin ("World Coastlines and Lakes", 3);

labels ("map", "xy");
grafmp (-180.0, 180.0, -180.0, 90.0, -90.0, 90.0, -90.0, 30.0);

gridmp (1, 1);
color  ("green");
world  ();
color  ("fore");

height (50);
title  ();
disfin ();
return 0;
}


TeX Instructions for Mathematical Formulas / C

#include <stdio.h>
#include "dislin.h"

int main ()
{ char cstr[80] = "TeX Instructions for Mathematical Formulas";
int nl;

scrmod ("revers");
setpag ("da4p");
metafl ("cons");
disini ();
pagera ();
complx ();
height (40);

nl = nlmess (cstr);
messag (cstr, (2100 - nl)/2, 100);

texmod ("on");
messag ("$\\frac{1}{x+y}$", 150, 400);
messag ("$\\frac{a^2 - b^2}{a+b} = a - b$", 1200, 400);

messag ("$r = \\sqrt{x^2 + y^2}", 150, 700); messag ("$\\cos \\phi = \\frac{x}{\\sqrt{x^2 + y^2}}$", 1200, 700); messag ("$\\Gamma(x) = \\int_0^\\infty e^{-t}t^{x-1}dt$", 150, 1000); messag ("$\\lim_{x \\to \\infty} (1 + \\frac{1}{x})^x = e$", 1200, 1000); messag ("$\\mu = \\sum_{i=1}^n x_i p_i$", 150, 1300); messag ("$\\mu = \\int_{-\\infty}^ \\infty x f(x) dx$", 1200, 1300); messag ("$\\overline{x} = \\frac{1}{n} \\sum_{i=1}^n x_i$", 150, 1600); messag ("$s^2 = \\frac{1}{n-1} \\sum_{i=1}^n (x_i - \\overline{x})^2$", 1200, 1600); messag ("$\\sqrt[n]{\\frac{x^n - y^n}{1 + u^{2n}}}$", 150, 1900); messag ("$\\sqrt[3]{-q + \\sqrt{q^2 + p^3}}$", 1200, 1900); messag ("$\\int \\frac{dx}{1+x^2} = \\arctan x + C$", 150, 2200); messag ("$\\int \\frac{dx}{\\sqrt{1+x^2}} = {\\rm arsinh} x + C$", 1200, 2200); messag ("$\\overline{P_1P_2} = \\sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}$", 150,2500); messag ("$x = \\frac{x_1 + \\lambda x_2}{1 + \\lambda}\$", 1200, 2500);
disfin ();
return 0;
}