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/*
* plot_demo.i --
*
* Demonstration of routines in "plot.i".
* Provides routines: plot_demo, plot_demo1, plot_demo2.
*
* Copyright (c) 1996, Eric THIEBAUT (thiebaut@obs.univ-lyon1.fr, Centre de
* Recherche Astrophysique de Lyon, 9 avenue Charles Andre,
* F-69561 Saint Genis Laval Cedex).
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details (to receive a copy of the GNU
* General Public License, write to the Free Software Foundation, Inc., 675
* Mass Ave, Cambridge, MA 02139, USA).
*
* History:
* $Id: plot_demo.i,v 1.1.1.1 2007/12/11 23:55:14 frigaut Exp $
* $Log: plot_demo.i,v $
* Revision 1.1.1.1 2007/12/11 23:55:14 frigaut
* Initial Import - yorick-yutils
*
* Revision 1.2 2002/11/14 11:20:52 eric
* - changed paths in require calls
*
*/
require, "plot.i";
require, Y_SITE+"include/random.i";
func plot_demo {plot_demo1; plot_demo2;}
func plot_demo1
{
/*
* Select an eventually new window and choose "work" style.
*/
win = max(0, current_window());
window, win, wait=1, style="work.gs";
limits;
animate, 0;
pldefault, font="helveticaBI", width=5, height=10, marks=0;
/*
* Some data.
*/
x= span(0., 2., 500);
y= sin(-pi*exp(x))*exp(-x);
xp= x(15::30);
yp= y(15::30);
dx= 0.05;
dy= 0.05 + yp/5.; // RSB ~ 5
xn= dx*random_n(dimsof(xp));
yn= dy*random_n(dimsof(yp));
write, " - true model and data points (in green)";
plg, y, x;
plp, yp+yn, xp+xn, color="green";
fma;
if (strtok(rdline(prompt="hit Enter to continue, Q to quit"))(1)=="q")
return;
write, " - data points (in green) with error bars (in red)";
plg, y, x;
plp, yp+yn, xp+xn, dx=dx, dy=dy, ticks=0, color="red", symbol=0;
plp, yp+yn, xp+xn, color="green";
fma;
if (strtok(rdline(prompt="hit Enter to continue, Q to quit"))(1)=="q")
return;
write, " - data points with error bars and ticks (in blue)";
plg, y, x;
plp, yp+yn, xp+xn, dx=dx, dy=dy, ticks=3, color="blue";
fma;
if (strtok(rdline(prompt="hit Enter to continue, Q to quit"))(1)=="q")
return;
write, " - data points with error bars, ticks and symbol (in green)";
plg, y, x;
plp, yp+yn, xp+xn, dx=dx, dy=dy, ticks=3, symbol=5, size=1.5, width=1,
color="green";
fma;
if (strtok(rdline(prompt="hit Enter to continue, Q to quit"))(1)=="q")
return;
write, " - data points with various symbols and colors";
plg, y, x;
colors= ["red", "green", "blue", "magenta", "cyan", "yellow"];
for (i=1; i<=numberof(colors);i++) {
xn= dx*random_n(dimsof(xp));
yn= dy*random_n(dimsof(yp));
plp, yp+yn, xp+xn, symbol=i-1, size=1.5, color=colors(i);
}
fma;
if (strtok(rdline(prompt="hit Enter to continue, Q to quit"))(1)=="q")
return;
write, " - histograms with different justification (plh)";
pldefault, font="helveticaBI", width=1, height=10, marks=0;
plh, y(::10)-.1, x(::10), just=1, marks=0, color="blue";
plh, y(::10), x(::10), just=2, marks=0;
plh, y(::10)+.1, x(::10), just=3, marks=0, color="cyan";
fma;
if (strtok(rdline(prompt="hit Enter to continue, Q to quit"))(1)=="q")
return;
}
func plot_demo2
{
write, "WARNING - demo under construction ...";
return;
local alt, az;
x= span(-1, 1, 30)(,-:1:30);
y= transpose(x);
a= abs(x, y);
a= exp(-32.*a^2);
a= a + .3 * roll(a, [5,-5]) - .7 * roll(a, [-5,-10]);
/*
* Select an eventually new window and choose "nobox" style.
*/
win = max(0, current_window());
window, win, wait=1, style="nobox.gs";
palette, "rainbow.gp";
limits;
animate, 1;
pldefault, font="helveticaBI", height=10;
write, " - deformation of a surface mesh";
pl3s, a, y, x, edges=1, fill=1, axis=1;
fma;
q= [100, 60, 45, 35, 25, 20, 15, 12, 9, 7, 6, 5];
for (k = 1; k <= numberof(q); k++) {
z= x+1i*y;
z= q(k)*z/(q(k)+z*z);
xx= z.re;
yy= z.im;
pl3s, a, yy, xx, edges=1, fill=1, axis=1;
fma;
}
if (strtok(rdline(prompt="hit Enter to continue, Q to quit"))(1)=="q")
return;
write, " - surface mesh as wireframe (fill=0 or nil)";
pl3s, a, yy, xx, edges=1, fill=0, axis=1, box=1;
fma;
if (strtok(rdline(prompt="hit Enter to continue, Q to quit"))(1)=="q")
return;
write, " - surface mesh filled with brightness (fill=1)";
pl3s, a, yy, xx, edges=1, fill=1, axis=1, box=1;
fma;
if (strtok(rdline(prompt="hit Enter to continue, Q to quit"))(1)=="q")
return;
write, " - surface mesh shaded (fill=2)";
pl3s, a, yy, xx, edges=1, fill=2, axis=1, box=1;
fma;
if (strtok(rdline(prompt="hit Enter to continue, Q to quit"))(1)=="q")
return;
write, " - rotation of the point of view";
step= 20;
az= 35.;
alt= 35.;
while (az <= 360.) {
for (x=0; x<=360; x+=step) {
pl3s, a, yy, xx, az=az, alt=alt+x, box=1, edges=1, fill=1, axis=0;
fma;
}
for (x=step; x<=90; x+=step) {
pl3s, a, yy, xx, az=az+x, alt=alt, box=1, edges=1, fill=1, axis=0;
fma;
}
az += 90.;
}
if (strtok(rdline(prompt="hit Enter to continue, Q to quit"))(1)=="q")
return;
/*
* Restore plot defaults.
*/
animate, 0;
/*
* 2-D surface plot.
*/
window, win, wait=1, style="work.gs";
pldefault, width=1;
write, " - filled mesh with contour (pls routine)";
pls, a, cbar=1, nlevs=10, xtitle="abscissa", ytitle="ordinate",
title="Example of PLS routine", font="timesBI", height=14, marks=0;
fma;
if (strtok(rdline(prompt="hit Enter to continue, Q to quit"))(1)=="q")
return;
write, " - filled mesh with contour (pls routine)";
pls, a, yy, xx, cbar=1, nlevs=10, xtitle="abscissa", ytitle="ordinate",
title="Example of PLS routine", font="timesBI", height=14, marks=0;
fma;
if (strtok(rdline(prompt="hit Enter to continue, Q to quit"))(1)=="q")
return;
}
func plot_demo3(step)
{
local alt, az;
x=span(-1, 1, 40)(,-:1:30);
y=span(-2, 4, 30)(-:1:40,);
z=sin(x*x+y*x);
/*
* Select an eventually new window and choose "nobox" style.
*/
win = max(0, current_window());
window, win, wait=1, style="nobox.gs";
palette, "rainbow.gp";
limits;
animate, 1;
pldefault, font="helveticaBI", height=10;
write, " - rotation of the point of view";
if (!step) {
step = 20;
}
az= 35.;
alt= 35.;
while (az <= 360.) {
for (a=0; a<=360; a+=step) {
pl3s, z, y, x, az=az, alt=alt+a, box=1, edges=1, fill=1, axis=1;
fma;
//rdline, prompt="hit Enter to continue";
}
for (a=step; a<=90; a+=step) {
pl3s, z, y, x, az=az+a, alt=alt, box=1, edges=1, fill=1, axis=1;
fma;
//rdline, prompt="hit Enter to continue";
}
az += 90;
}
if (strtok(rdline(prompt="hit Enter to continue, Q to quit"))(1)=="q")
return;
/*
* Restore plot defaults.
*/
animate, 0;
}
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