int
main( int argc, char *argv[] )
{
int i;
// Parse and process command line arguments
(void) plparseopts( &argc, argv, PL_PARSE_FULL );
// Initialize plplot
plinit();
plfont( 2 );
// Make log plots using two different styles.
i = 0;
while ( x_labels[i] != NULL )
{
plot1( 0, x_labels[i], y_labels[i], alty_labels[i],
legend_texts[i], title_labels[i], line_labels[i] );
i++;
}
plend();
exit( 0 );
}
void setup_plot_drawable( App *a )
{
struct
{
Display *display;
Drawable drawable;
} xinfo;
PLFLT x[3] = { 1, 3, 4 };
PLFLT y[3] = { 3, 2, 5 };
plsdev( "xcairo" );
plsetopt( "drvopt", "external_drawable" );
plinit();
#if TO_PIXMAP == 1
// Here we set up to draw to a pixmap
xinfo.display = GDK_PIXMAP_XDISPLAY( a->plotwindow_pixmap );
xinfo.drawable = GDK_PIXMAP_XID( a->plotwindow_pixmap );
#else
// Alternatively, we can do direct to a visible X Window
xinfo.display = GDK_WINDOW_XDISPLAY( a->plotwindow->window );
xinfo.drawable = GDK_WINDOW_XID( a->plotwindow->window );
#endif
pl_cmd( PLESC_DEVINIT, &xinfo );
plenv( 0, 5, 0, 5, 0, 0 );
plline( 3, x, y );
plend();
}
nemo_main()
{
int n = 0;
setparams(); /* set globals */
instr = stropen (infile, "r");
plinit ("***", 0.0, 20.0, 0.0, 20.0); /* init yapp */
while (read_image(instr,&iptr)) { /* loop while more images found */
dprintf(1,"Time= %g MinMax= %g %g\n",Time(iptr),MapMin(iptr),MapMax(iptr));
nx=Nx(iptr);
ny=Ny(iptr);
nz=Nz(iptr);
if (nz > 1) error("Cannot handle 3D images [%d,%d,%d]",nx,ny,nz);
xmin=Xmin(iptr);
ymin=Ymin(iptr);
dx=Dx(iptr);
dy=Dy(iptr);
xsize = nx * dx;
ysize = ny * dy;
if (n>0) {
sleep(1);
plframe();
}
plot_map(); /* plot the map */
n++;
}
plstop(); /* end of yapp */
strclose(instr);
}
int plp_init(const char *driver, const char *_title, int _is_complex) {
int i;
if (2*NOF_INPUT_ITF > 1) {
modinfo("Multiple signals are currently displayed in the same plot\n");
}
plsdev(driver);
plinit();
pladv(0);
title = _title;
is_complex = _is_complex;
for (i=0;i<2*NOF_INPUT_ITF;i++) {
legends[i] = (const char*) "";
}
for (i=0;i<INPUT_MAX_SAMPLES;i++) {
t[i] = i;
}
setup_legend();
xlabel = xlabel_def;
ylabel = ylabel_def;
plscol0a( 14, 0, 0, 0, 1);
reset_axis();
return 0;
}
int
main(int argc, char *argv[])
{
char text[10];
int i, j, k;
PLFLT x, y;
/* Parse and process command line arguments */
(void) plparseopts(&argc, argv, PL_PARSE_FULL);
/* Initialize plplot */
plinit();
pladv(0);
/* Set up viewport and window */
plcol0(2);
plvpor(0.1, 1.0, 0.1, 0.9);
plwind(0.0, 1.0, 0.0, 1.3);
/* Draw the grid using plbox */
plbox("bcg", 0.1, 0, "bcg", 0.1, 0);
/* Write the digits below the frame */
plcol0(15);
for (i = 0; i <= 9; i++) {
sprintf(text, "%d", i);
plmtex("b", 1.5, (0.1 * i + 0.05), 0.5, text);
}
k = 0;
for (i = 0; i <= 12; i++) {
/* Write the digits to the left of the frame */
sprintf(text, "%d", 10 * i);
plmtex("lv", 1.0, (1.0 - (2 * i + 1) / 26.0), 1.0, text);
for (j = 0; j <= 9; j++) {
x = 0.1 * j + 0.05;
y = 1.25 - 0.1 * i;
/* Display the symbols (plpoin expects that x and y are arrays so */
/* pass pointers) */
if (k < 128)
plpoin(1, &x, &y, k);
k = k + 1;
}
}
plmtex("t", 1.5, 0.5, 0.5, "PLplot Example 6 - plpoin symbols");
plend();
exit(0);
}
int main(int argc, char **argv) {
enum Constexpr {n_points = 1000};
double mu = 1.0;
gsl_odeiv2_system sys = {ode_func, ode_jac, 2, &mu};
gsl_odeiv2_driver * d= gsl_odeiv2_driver_alloc_y_new(
&sys,
gsl_odeiv2_step_rk8pd,
1e-6,
1e-6,
0.0
);
int i;
double t = 0.0;
double t1 = 100.0;
/* Initial condition: f = 0 with speed 0. */
double y[2] = {1.0, 0.0};
double dt = t1 / n_points;
double datax[n_points];
double datay[n_points];
for (i = 0; i < n_points; i++) {
double ti = i * dt;
int status = gsl_odeiv2_driver_apply(d, &t, ti, y);
if (status != GSL_SUCCESS) {
fprintf(stderr, "error, return value=%d\n", status);
break;
}
/* Get output. */
printf("%.5e %.5e %.5e\n", t, y[0], y[1]);
datax[i] = y[0];
datay[i] = y[1];
}
/* Cleanup. */
gsl_odeiv2_driver_free(d);
/* Plot. */
if (argc > 1 && argv[1][0] == '1') {
plsdev("xwin");
plinit();
plenv(
gsl_stats_min(datax, 1, n_points),
gsl_stats_max(datax, 1, n_points),
gsl_stats_min(datay, 1, n_points),
gsl_stats_max(datay, 1, n_points),
0,
1
);
plstring(n_points, datax, datay, "*");
plend();
}
return EXIT_SUCCESS;
}
int
main(int argc, char **argv)
{
PLFLT minx, maxx, miny, maxy;
int c;
/* Parse and process command line arguments */
(void) plparseopts(&argc, argv, PL_PARSE_FULL);
/* Longitude (x) and latitude (y) */
miny = -70;
maxy = 80;
plinit();
/* Cartesian plots */
/* Most of world */
minx = 190;
maxx = 190+360;
plcol0(1);
plenv(minx, maxx, miny, maxy, 1, -1);
plmap(NULL, "usaglobe", minx, maxx, miny, maxy);
/* The Americas */
minx = 190;
maxx = 340;
plcol0(1);
plenv(minx, maxx, miny, maxy, 1, -1);
plmap(NULL, "usaglobe", minx, maxx, miny, maxy);
/* Polar, Northern hemisphere */
minx = 0;
maxx = 360;
plenv(-75., 75., -75., 75., 1, -1);
plmap(mapform19,"globe", minx, maxx, miny, maxy);
pllsty(2);
plmeridians(mapform19,10.0, 10.0, 0.0, 360.0, -10.0, 80.0);
plend();
exit(0);
}
nemo_main()
{
real xtrans(real), ytrans(real);
formalaxis = getbparam("formalaxis");
xlabdn = getdparam("xlabdn");
xszlab = getdparam("xszlab");
ylablf = getdparam("ylablf");
yszlab = getdparam("yszlab");
plinit("***", 0.0, 20.0, 0.0, 20.0);
xaxis( 2.0, 2.0, 16.0, xrange, -3, xtrans, "x");
xaxis( 2.0, 18.0, 16.0, xrange, -3, xtrans, NULL);
yaxis( 2.0, 2.0, 16.0, yrange, -7, ytrans, "y");
yaxis(18.0, 2.0, 16.0, yrange, -7, ytrans, NULL);
plstop();
}
void main(void){
Panel *g;
binit(0,0,0);
einit(Emouse);
plinit(screen.ldepth);
root=plgroup(0, 0);
g=plgroup(root, PACKN|EXPAND);
list=pllist(g, PACKE|EXPAND, genlist, 8, hitgen);
plscroll(list, 0, plscrollbar(g, PACKW));
msg=pllabel(root, PACKN|FILLX, "");
plbutton(root, PACKW, "save", save);
plbutton(root, PACKW, "revert", revert);
plbutton(root, PACKE, "done", done);
ereshaped(screen.r);
for(;;) plmouse(root, emouse(), &screen);
}
PlPlotWidget::PlPlotWidget(QWidget *parent) :
QWidget(parent)
{
setAttribute( Qt::WA_DeleteOnClose );
plot = new QtExtWidget( parent->width(), parent->height(), parent ); //this should fit the widget box
plmkstrm( &strm );// One window = One plot widget = one stream
plsdev( "extqt" );
plsetqtdev( plot );
plinit();
plot->setBackgroundColor(255,255,255,1);
//resize( 400, 320 );
pladv( 0 );
unsigned int col = 255;
plscolbg(col,col,col);
}
int
main( int argc, const char *argv[] )
{
int i, j;
PLFLT xx, yy;
/* Parse and process command line arguments */
(void) plparseopts( &argc, argv, PL_PARSE_FULL );
/* Set up color map 0 */
/*
* plscmap0n(3);
*/
/* Set up color map 1 */
cmap1_init2();
/* Initialize plplot */
plinit();
/* Set up data array */
for ( i = 0; i < XPTS; i++ )
{
xx = (double) ( i - ( XPTS / 2 ) ) / (double) ( XPTS / 2 );
for ( j = 0; j < YPTS; j++ )
{
yy = (double) ( j - ( YPTS / 2 ) ) / (double) ( YPTS / 2 ) - 1.0;
z[i][j] = xx * xx - yy * yy + ( xx - yy ) / ( xx * xx + yy * yy + 0.1 );
}
}
f2mnmx( &z[0][0], XPTS, YPTS, &zmin, &zmax );
plot1();
plot2();
plot3();
plend();
exit( 0 );
}
static void plplot_set_window_size( plot_driver_type * driver , int width , int height) {
char * geometry = util_alloc_sprintf("%dx%d", width, height);
plsetopt("geometry", geometry);
free( geometry );
{
plplot_state_type * state = driver->state;
plsstrm( state->stream );
//{
// printf("---------- Calling plinit()\n");
// errno = 0;
// pllib_init();
// printf("%s: after plinit(): errno:%d / strerror:%s\n",__func__ , errno , strerror( errno ));
//}
plinit();
pladv(0); /* And what does this do ... */
plvsta();
}
}
int main( int argc, const char *argv[] )
{
cairo_surface_t *cairoSurface;
cairo_t *cairoContext;
cairoSurface = cairo_ps_surface_create( "ext-cairo-test.ps", 720, 540 );
cairoContext = cairo_create( cairoSurface );
plparseopts( &argc, argv, PL_PARSE_FULL );
plsdev( "extcairo" );
plinit();
pl_cmd( PLESC_DEVINIT, cairoContext );
plenv( 0.0, 1.0, 0.0, 1.0, 1, 0 );
pllab( "x", "y", "title" );
plend();
cairo_destroy( cairoContext );
cairo_surface_destroy( cairoSurface );
exit( 0 );
}
int
main( int argc, char *argv[] )
{
int i, j;
plparseopts( &argc, argv, PL_PARSE_FULL );
plinit();
pladv( 0 );
plvpor( 0.0, 1.0, 0.0, 1.0 );
plwind( 0.0, 1.0, 0.0, 1.0 );
plcol0( 0 );
plbox( "", 1.0, 0, "", 1.0, 0 );
plscmap0n( 7 );
plscmap0( red, green, blue, 7 );
plschr( 0, 4.0 );
plfont( 1 );
for ( i = 0; i < 4; i++ )
{
plcol0( i + 1 );
plfill( 4, px, py );
for ( j = 0; j < 4; j++ )
py [j] += 1.0 / 4.0;
}
plcol0( 0 );
for ( i = 0; i < 12; i++ )
plptex( sx [i], sy [i], 1.0, 0.0, 0.5, peace [i] );
plend();
exit( 0 );
}
int
main( int argc, const char *argv[] )
{
/* Parse and process command line arguments */
(void) plparseopts( &argc, argv, PL_PARSE_FULL );
/* Initialize plplot */
plinit();
pladv( 0 );
plvpor( 0.0, 1.0, 0.0, 1.0 );
plwind( 0.0, 1.0, 0.0, 1.0 );
plbox( "bc", 0.0, 0, "bc", 0.0, 0 );
plsvpa( 50.0, 150.0, 50.0, 100.0 );
plwind( 0.0, 1.0, 0.0, 1.0 );
plbox( "bc", 0.0, 0, "bc", 0.0, 0 );
plptex( 0.5, 0.5, 1.0, 0.0, 0.5, "BOX at (50,150,50,100)" );
plend();
exit( 0 );
}
int main( int argc, const char *argv[] )
{
PLFLT x[NSIZE], y[NSIZE];
PLFLT xmin = 0., xmax = 1., ymin = 0., ymax = 100.;
for (int i = 0; i < NSIZE; i++)
{
x[i] = (PLFLT) (i) / (PLFLT) (NSIZE-1);
y[i] = ymax * x[i] * x[i];
}
plparseopts( &argc, argv, PL_PARSE_FULL );
plinit();
plenv(xmin, xmax, ymin, ymax, 0, 0);
pllab("x", "y", "Simple PLplot demo of a 2D line plot");
plline(NSIZE, x, y);
plend();
return 0;
}
int main( int argc, char *argv[] )
{
PLINT mode;
PLINT i;
// PLplot initialization
// Parse and process command line arguments
plparseopts( &argc, argv, PL_PARSE_FULL );
// Initialize PLplot
plinit();
// Check for drawing mode support
mode = plgdrawmode();
if ( mode == PL_DRAWMODE_UNKNOWN )
{
printf( "WARNING: This driver does not support drawing mode getting/setting" );
}
else
{
// Setup colors
initialize_colors();
// Draw one page per drawing mode
for ( i = 0; i < NUM_MODES; i++ )
{
draw_page( drawing_modes[i], drawing_mode_names[i] );
}
}
// Clean up
plend();
exit( 0 );
}
void nemo_main()
{
stream istr;
char msg[128];
int i, ndim;
string *fn;
setparams();
compfuncs(); /* btrrtans snapplot-like interface */
plinit("***", 0.0, 20.0, 0.0, 20.0);
xaxis( 2.0, 2.0, 16.0, xrange, -7, xtrans, xlabel);
xaxis( 2.0, 18.0, 16.0, xrange, -7, xtrans, NULL);
yaxis( 2.0, 2.0, 16.0, yrange, -7, ytrans, ylabel);
yaxis(18.0, 2.0, 16.0, yrange, -7, ytrans, NULL);
sprintf(msg, "File: %s", input);
pltext(msg, 2.0, 18.4, 0.32, 0.0);
optr = NULL;
ndim = NDIM;
allocate_orbit(&optr,ndim,maxsteps); /* allocate a large orbit */
fn = burststring(input," ,");
for (i=0; fn[i]; i++) { /* loop over all files */
istr = stropen(fn[i], "r"); /* open orbit file */
while (read_orbit(istr,&optr)) { /* while an orbit found....*/
dprintf(0,"Read orbit with %d phase-points\n",Nsteps(optr));
plot_path(optr,trange[0],trange[1],nplot);
Nsteps(optr) = maxsteps; /* reset for next orbit */
}
strclose(istr);
}
plstop();
}
/*
* Plot a histogram showing the number of occurences of each possible
* value of 'samples'.
*/
int plplotHist(
const int32_t *samples,
uint32_t numSamples,
const char *graphName,
const char *fileName,
const char *xAxisName, /* optional */
const char *yAxisName) /* optional */
{
char tmpFile[TEMP_FN_LEN];
makeTempFile(tmpFile, TEMP_FN_LEN);
/* First determine the range, i.e. the number of bins */
int32_t minSamp = samples[0];
int32_t maxSamp = samples[0];
for(uint32_t dex=0; dex<numSamples; dex++) {
int32_t s = samples[dex];
if(s < minSamp) {
minSamp = s;
}
if(s > maxSamp) {
maxSamp = s;
}
}
/* When we specify PL_BIN_CENTRED, the min and max values are half the normal width */
minSamp--;
maxSamp++;
PLINT numBins = maxSamp - minSamp + 1;
/* One array containing the sample values, x */
PLFLT *x = (PLFLT *)malloc(numBins * sizeof(PLFLT));
int32_t binNum = minSamp;
for(uint32_t dex=0; dex<(uint32_t)numBins; dex++) {
x[dex] = binNum++;
}
/* Now make and fill the bins proper */
PLFLT *y = (PLFLT *)malloc(numBins * sizeof(PLFLT));
for(uint32_t dex=0; dex<(uint32_t)numBins; dex++) {
y[dex] = 0;
}
PLFLT maxY = 0.0;
for(uint32_t dex=0; dex<numSamples; dex++) {
int32_t s = samples[dex];
PLFLT *yp = y + s - minSamp;
*yp += 1.0;
if(*yp > maxY) {
maxY = *yp;
}
}
const char *yName = yAxisName ? yAxisName : "";
const char *xName = xAxisName ? xAxisName : "";
#if HIST_COLOR
plsdev ("psc");
plscolor(1);
plscolbg(255, 255, 255); /* white background */
#else
plsdev ("ps");
#endif
plsfnam(tmpFile);
plsdiori(1.0); // portrait
plinit();
plenv(minSamp, maxSamp, 0, maxY, 0, 0);
#if HIST_COLOR
/* can we alter colors of lines and the spaces inside the histograms? */
plscolbg(255, 0, 0); /* red background */
plscol0(1, 255, 0, 0); /* red foreground - no effect */
#endif
pllab(xName, yName, graphName);
plbin(numBins, x, y, PL_BIN_CENTRED);
plend();
free(x);
free(y);
int ourRtn = psToPdf(tmpFile, fileName);
unlink(tmpFile);
return ourRtn;
}
int
main(int argc, char *argv[])
{
/* ============== Begin variable definition section. ============= */
/*
* i, j, and k are counting variables used in loops and such. M is the
* number of lines to be plotted and N is the number of sample points
* for each line.
*/
int i, j, k, M, N, leglen;
/*
* x is a pointer to an array containing the N x-coordinate values. y
* points to an array of M pointers each of which points to an array
* containing the N y-coordinate values for that line.
*/
PLFLT *x, **y;
/* Define storage for the min and max values of the data. */
PLFLT xmin, xmax, ymin, ymax, xdiff, ydiff;
/* Define storage for the filename and define the input file pointer. */
char filename[80], string[80], tmpstr[80];
FILE *datafile;
/* Here are the character strings that appear in the plot legend. */
static char *legend[] =
{
"Aardvarks",
"Gnus",
"Llamas",
NULL}; /* Make sure last element is NULL */
/* ============== Read in data from input file. ============= */
/* Parse and process command line arguments */
(void) plparseopts(&argc, argv, PL_PARSE_FULL);
/* First prompt the user for the input data file name */
printf("Enter input data file name. ");
scanf("%s", filename);
/* and open the file. */
datafile = fopen(filename, "r");
if (datafile == NULL) /* error opening input file */
error("Error opening input file.");
/* Read in values of M and N */
k = fscanf(datafile, "%d %d", &M, &N);
if (k != 2) /* something's wrong */
error("Error while reading data file.");
/* Allocate memory for all the arrays. */
x = (PLFLT *) malloc(N * sizeof(PLFLT));
if (x == NULL)
error("Out of memory!");
y = (PLFLT **) malloc(M * sizeof(PLFLT *));
if (y == NULL)
error("Out of memory!");
for (i = 0; i < M; i++) {
y[i] = (PLFLT *) malloc(N * sizeof(PLFLT));
if (y[i] == NULL)
error("Out of memory!");
}
/* Now read in all the data. */
for (i = 0; i < N; i++) { /* N points */
k = fscanf(datafile, "%f", &x[i]);
if (k != 1)
error("Error while reading data file.");
for (j = 0; j < M; j++) { /* M lines */
k = fscanf(datafile, "%f", &y[j][i]);
if (k != 1)
error("Error while reading data file.");
}
}
/* ============== Graph the data. ============= */
/* Set graph to portrait orientation. (Default is landscape.) */
/* (Portrait is usually desired for inclusion in TeX documents.) */
plsori(1);
/* Initialize plplot */
plinit();
/*
* We must call pladv() to advance to the first (and only) subpage.
* You might want to use plenv() instead of the pladv(), plvpor(),
* plwind() sequence.
*/
pladv(0);
/*
* Set up the viewport. This is the window into which the data is
* plotted. The size of the window can be set with a call to
* plvpor(), which sets the size in terms of normalized subpage
* coordinates. I want to plot the lines on the upper half of the
* page and I want to leave room to the right of the figure for
* labelling the lines. We must also leave room for the title and
* labels with plvpor(). Normally a call to plvsta() can be used
* instead.
*/
plvpor(0.15, 0.70, 0.5, 0.9);
/*
* We now need to define the size of the window in user coordinates.
* To do this, we first need to determine the range of the data
* values.
*/
xmin = xmax = x[0];
ymin = ymax = y[0][0];
for (i = 0; i < N; i++) {
if (x[i] < xmin)
xmin = x[i];
if (x[i] > xmax)
xmax = x[i];
for (j = 0; j < M; j++) {
if (y[j][i] < ymin)
ymin = y[j][i];
if (y[j][i] > ymax)
ymax = y[j][i];
}
}
/*
* Now set the size of the window. Leave a small border around the
* data.
*/
xdiff = (xmax - xmin) / 20.;
ydiff = (ymax - ymin) / 20.;
plwind(xmin - xdiff, xmax + xdiff, ymin - ydiff, ymax + ydiff);
/*
* Call plbox() to draw the axes (see the PLPLOT manual for
* information about the option strings.)
*/
plbox("bcnst", 0.0, 0, "bcnstv", 0.0, 0);
/*
* Label the axes and title the graph. The string "#gm" plots the
* Greek letter mu, all the Greek letters are available, see the
* PLplot manual.
*/
pllab("Time (weeks)", "Height (#gmparsecs)", "Specimen Growth Rate");
/*
* Plot the data. plpoin() draws a symbol at each point. plline()
* connects all the points.
*/
for (i = 0; i < M; i++) {
plpoin(N, x, y[i], i + OFFSET);
plline(N, x, y[i]);
}
/*
* Draw legend to the right of the chart. Things get a little messy
* here. You may want to remove this section if you don't want a
* legend drawn. First find length of longest string.
*/
leglen = 0;
for (i = 0; i < M; i++) {
if (legend[i] == NULL)
break;
j = strlen(legend[i]);
if (j > leglen)
leglen = j;
}
/*
* Now build the string. The string consists of an element from the
* legend string array, padded with spaces, followed by one of the
* symbols used in plpoin above.
*/
for (i = 0; i < M; i++) {
if (legend[i] == NULL)
break;
strcpy(string, legend[i]);
j = strlen(string);
if (j < leglen) { /* pad string with spaces */
for (k = j; k < leglen; k++)
string[k] = ' ';
string[k] = '\0';
}
/* pad an extra space */
strcat(string, " ");
j = strlen(string);
/* insert the ASCII value of the symbol plotted with plpoin() */
string[j] = i + OFFSET;
string[j + 1] = '\0';
/* plot the string */
plmtex("rv", 1., 1. - (double) (i + 1) / (M + 1), 0., string);
}
/* Tell plplot we are done with this page. */
pladv(0); /* advance page */
/* Don't forget to call plend() to finish off! */
plend();
exit(0);
}
int
main( int argc, char *argv[] )
{
PLFLT xmin0, xmax0, ymin0, ymax0, zxmin0, zxmax0, zymin0, zymax0;
PLFLT xmin, xmax, ymin, ymax, zxmin, zxmax, zymin, zymax;
PLFLT xmid, ymid, wx, wy;
PLFLT mar0, aspect0, jx0, jy0, ori0;
PLFLT mar, aspect, jx, jy, ori;
PLINT win, level2, digmax, digits, compression1, compression2;
PLFLT xp0, yp0;
PLINT xleng0, yleng0, xoff0, yoff0;
PLFLT xp1, yp1;
PLINT xleng1, yleng1, xoff1, yoff1;
PLFLT xp2, yp2;
PLINT xleng2, yleng2, xoff2, yoff2;
PLINT fam0, num0, bmax0;
PLINT fam1, num1, bmax1;
PLINT fam2, num2, bmax2;
PLINT r0, g0, b0;
PLFLT a0;
PLINT r, g, b;
PLFLT a;
PLINT r1[] = { 0, 255 };
PLINT g1[] = { 255, 0 };
PLINT b1[] = { 0, 0 };
PLFLT a1[] = { 1.0, 1.0 };
int status;
char fnam[256];
// Parse and process command line arguments
status = 0;
(void) plparseopts( &argc, argv, PL_PARSE_FULL );
// Test setting / getting familying parameters before plinit
// Save values set by plparseopts to be restored later.
plgfam( &fam0, &num0, &bmax0 );
fam1 = 0;
num1 = 10;
bmax1 = 1000;
plsfam( fam1, num1, bmax1 );
// Retrieve the same values?
plgfam( &fam2, &num2, &bmax2 );
printf( "family parameters: fam, num, bmax = %d %d %d\n", fam2, num2, bmax2 );
if ( fam2 != fam1 || num2 != num1 || bmax2 != bmax1 )
{
fputs( "plgfam test failed\n", stderr );
status = 1;
}
// Restore values set initially by plparseopts.
plsfam( fam0, num0, bmax0 );
// Test setting / getting page parameters before plinit
// Save values set by plparseopts to be restored later.
plgpage( &xp0, &yp0, &xleng0, &yleng0, &xoff0, &yoff0 );
xp1 = 200.;
yp1 = 200.;
xleng1 = 400;
yleng1 = 200;
xoff1 = 10;
yoff1 = 20;
plspage( xp1, yp1, xleng1, yleng1, xoff1, yoff1 );
// Retrieve the same values?
plgpage( &xp2, &yp2, &xleng2, &yleng2, &xoff2, &yoff2 );
printf( "page parameters: xp, yp, xleng, yleng, xoff, yoff = %f %f %d %d %d %d\n", xp2, yp2, xleng2, yleng2, xoff2, yoff2 );
if ( xp2 != xp1 || yp2 != yp1 || xleng2 != xleng1 || yleng2 != yleng1 ||
xoff2 != xoff1 || yoff2 != yoff1 )
{
fputs( "plgpage test failed\n", stderr );
status = 1;
}
// Restore values set initially by plparseopts.
plspage( xp0, yp0, xleng0, yleng0, xoff0, yoff0 );
// Test setting / getting compression parameter across plinit.
compression1 = 95;
plscompression( compression1 );
// Initialize plplot
plinit();
// Test if device initialization screwed around with the preset
// compression parameter.
plgcompression( &compression2 );
printf( "Output various PLplot parameters\n" );
printf( "compression parameter = %d\n", compression2 );
if ( compression2 != compression1 )
{
fputs( "plgcompression test failed\n", stderr );
status = 1;
}
// Exercise plscolor, plscol0, plscmap1, and plscmap1a to make sure
// they work without any obvious error messages.
plscolor( 1 );
plscol0( 1, 255, 0, 0 );
plscmap1( r1, g1, b1, 2 );
plscmap1a( r1, g1, b1, a1, 2 );
plglevel( &level2 );
printf( "level parameter = %d\n", level2 );
if ( level2 != 1 )
{
fputs( "plglevel test failed.\n", stderr );
status = 1;
}
pladv( 0 );
xmin0 = 0.01;
xmax0 = 0.99;
ymin0 = 0.02;
ymax0 = 0.49;
plvpor( xmin0, xmax0, ymin0, ymax0 );
plgvpd( &xmin, &xmax, &ymin, &ymax );
printf( "plvpor: xmin, xmax, ymin, ymax = %f %f %f %f\n", xmin, xmax, ymin, ymax );
if ( xmin != xmin0 || xmax != xmax0 || ymin != ymin0 || ymax != ymax0 )
{
fputs( "plgvpd test failed\n", stderr );
status = 1;
}
xmid = 0.5 * ( xmin + xmax );
ymid = 0.5 * ( ymin + ymax );
xmin0 = 0.2;
xmax0 = 0.3;
ymin0 = 0.4;
ymax0 = 0.5;
plwind( xmin0, xmax0, ymin0, ymax0 );
plgvpw( &xmin, &xmax, &ymin, &ymax );
printf( "plwind: xmin, xmax, ymin, ymax = %f %f %f %f\n", xmin, xmax, ymin, ymax );
if ( xmin != xmin0 || xmax != xmax0 || ymin != ymin0 || ymax != ymax0 )
{
fputs( "plgvpw test failed\n", stderr );
status = 1;
}
// Get world coordinates for middle of viewport
plcalc_world( xmid, ymid, &wx, &wy, &win );
printf( "world parameters: wx, wy, win = %f %f %d\n", wx, wy, win );
if ( fabs( wx - 0.5 * ( xmin + xmax ) ) > 1.0E-5 || fabs( wy - 0.5 * ( ymin + ymax ) ) > 1.0E-5 )
{
fputs( "plcalc_world test failed\n", stderr );
status = 1;
}
// Retrieve and print the name of the output file (if any).
// This goes to stderr not stdout since it will vary between tests and
// we want stdout to be identical for compare test.
plgfnam( fnam );
if ( fnam[0] == '\0' )
{
printf( "No output file name is set\n" );
}
else
{
printf( "Output file name read\n" );
}
fprintf( stderr, "Output file name is %s\n", fnam );
// Set and get the number of digits used to display axis labels
// Note digits is currently ignored in pls[xyz]ax and
// therefore it does not make sense to test the returned
// value
plsxax( 3, 0 );
plgxax( &digmax, &digits );
printf( "x axis parameters: digmax, digits = %d %d\n", digmax, digits );
if ( digmax != 3 )
{
fputs( "plgxax test failed\n", stderr );
status = 1;
}
plsyax( 4, 0 );
plgyax( &digmax, &digits );
printf( "y axis parameters: digmax, digits = %d %d\n", digmax, digits );
if ( digmax != 4 )
{
fputs( "plgyax test failed\n", stderr );
status = 1;
}
plszax( 5, 0 );
plgzax( &digmax, &digits );
printf( "z axis parameters: digmax, digits = %d %d\n", digmax, digits );
if ( digmax != 5 )
{
fputs( "plgzax test failed\n", stderr );
status = 1;
}
mar0 = 0.05;
aspect0 = PL_NOTSET;
jx0 = 0.1;
jy0 = 0.2;
plsdidev( mar0, aspect0, jx0, jy0 );
plgdidev( &mar, &aspect, &jx, &jy );
printf( "device-space window parameters: mar, aspect, jx, jy = %f %f %f %f\n", mar, aspect, jx, jy );
if ( mar != mar0 || jx != jx0 || jy != jy0 )
{
fputs( "plgdidev test failed\n", stderr );
status = 1;
}
ori0 = 1.0;
plsdiori( ori0 );
plgdiori( &ori );
printf( "ori parameter = %f\n", ori );
if ( ori != ori0 )
{
fputs( "plgdiori test failed\n", stderr );
status = 1;
}
xmin0 = 0.1;
ymin0 = 0.2;
xmax0 = 0.9;
ymax0 = 0.8;
plsdiplt( xmin0, ymin0, xmax0, ymax0 );
plgdiplt( &xmin, &ymin, &xmax, &ymax );
printf( "plot-space window parameters: xmin, ymin, xmax, ymax = %f %f %f %f\n", xmin, ymin, xmax, ymax );
if ( xmin != xmin0 || ymin != ymin0 || xmax != xmax0 || ymax != ymax0 )
{
fputs( "plgdiplt test failed\n", stderr );
status = 1;
}
zxmin0 = 0.1;
zymin0 = 0.1;
zxmax0 = 0.9;
zymax0 = 0.9;
plsdiplz( zxmin0, zymin0, zxmax0, zymax0 );
plgdiplt( &zxmin, &zymin, &zxmax, &zymax );
printf( "zoomed plot-space window parameters: xmin, ymin, xmax, ymax = %f %f %f %f\n", zxmin, zymin, zxmax, zymax );
if ( fabs( zxmin - ( xmin + ( xmax - xmin ) * zxmin0 ) ) > 1.0E-5 ||
fabs( zymin - ( ymin + ( ymax - ymin ) * zymin0 ) ) > 1.0E-5 ||
fabs( zxmax - ( xmin + ( xmax - xmin ) * zxmax0 ) ) > 1.0E-5 ||
fabs( zymax - ( ymin + ( ymax - ymin ) * zymax0 ) ) > 1.0E-5 )
{
fputs( "plsdiplz test failed\n", stderr );
status = 1;
}
r0 = 10;
g0 = 20;
b0 = 30;
plscolbg( r0, g0, b0 );
plgcolbg( &r, &g, &b );
printf( "background colour parameters: r, g, b = %d %d %d\n", r, g, b );
if ( r != r0 || g != g0 || b != b0 )
{
fputs( "plgcolbg test failed\n", stderr );
status = 1;
}
r0 = 20;
g0 = 30;
b0 = 40;
a0 = 0.5;
plscolbga( r0, g0, b0, a0 );
plgcolbga( &r, &g, &b, &a );
printf( "background/transparency colour parameters: r, g, b, a = %d %d %d %f\n", r, g, b, a );
if ( r != r0 || g != g0 || b != b0 || a != a0 )
{
fputs( "plgcolbga test failed\n", stderr );
status = 1;
}
plend();
exit( status );
}
int
main( int argc, const char *argv[] )
{
int i, j;
PLFLT xx, yy, argx, argy, distort;
static PLINT mark = 1500, space = 1500;
PLFLT **z, **w;
PLFLT xg1[XPTS], yg1[YPTS];
PLcGrid cgrid1;
PLcGrid2 cgrid2;
// Parse and process command line arguments
(void) plparseopts( &argc, argv, PL_PARSE_FULL );
// Initialize plplot
plinit();
// Set up function arrays
plAlloc2dGrid( &z, XPTS, YPTS );
plAlloc2dGrid( &w, XPTS, YPTS );
for ( i = 0; i < XPTS; i++ )
{
xx = (double) ( i - ( XPTS / 2 ) ) / (double) ( XPTS / 2 );
for ( j = 0; j < YPTS; j++ )
{
yy = (double) ( j - ( YPTS / 2 ) ) / (double) ( YPTS / 2 ) - 1.0;
z[i][j] = xx * xx - yy * yy;
w[i][j] = 2 * xx * yy;
}
}
// Set up grids
cgrid1.xg = xg1;
cgrid1.yg = yg1;
cgrid1.nx = XPTS;
cgrid1.ny = YPTS;
plAlloc2dGrid( &cgrid2.xg, XPTS, YPTS );
plAlloc2dGrid( &cgrid2.yg, XPTS, YPTS );
cgrid2.nx = XPTS;
cgrid2.ny = YPTS;
for ( i = 0; i < XPTS; i++ )
{
for ( j = 0; j < YPTS; j++ )
{
mypltr( (PLFLT) i, (PLFLT) j, &xx, &yy, NULL );
argx = xx * M_PI / 2;
argy = yy * M_PI / 2;
distort = 0.4;
cgrid1.xg[i] = xx + distort * cos( argx );
cgrid1.yg[j] = yy - distort * cos( argy );
cgrid2.xg[i][j] = xx + distort * cos( argx ) * cos( argy );
cgrid2.yg[i][j] = yy - distort * cos( argx ) * cos( argy );
}
}
// Plot using identity transform
//
// plenv(-1.0, 1.0, -1.0, 1.0, 0, 0);
// plcol0(2);
// plcont(z, XPTS, YPTS, 1, XPTS, 1, YPTS, clevel, 11, mypltr, NULL);
// plstyl(1, &mark, &space);
// plcol0(3);
// plcont(w, XPTS, YPTS, 1, XPTS, 1, YPTS, clevel, 11, mypltr, NULL);
// plstyl(0, &mark, &space);
// plcol0(1);
// pllab("X Coordinate", "Y Coordinate", "Streamlines of flow");
//
pl_setcontlabelformat( 4, 3 );
pl_setcontlabelparam( 0.006, 0.3, 0.1, 1 );
plenv( -1.0, 1.0, -1.0, 1.0, 0, 0 );
plcol0( 2 );
plcont( (const PLFLT * const *) z, XPTS, YPTS, 1, XPTS, 1, YPTS, clevel, 11, mypltr, NULL );
plstyl( 1, &mark, &space );
plcol0( 3 );
plcont( (const PLFLT * const *) w, XPTS, YPTS, 1, XPTS, 1, YPTS, clevel, 11, mypltr, NULL );
plstyl( 0, &mark, &space );
plcol0( 1 );
pllab( "X Coordinate", "Y Coordinate", "Streamlines of flow" );
pl_setcontlabelparam( 0.006, 0.3, 0.1, 0 );
// Plot using 1d coordinate transform
plenv( -1.0, 1.0, -1.0, 1.0, 0, 0 );
plcol0( 2 );
plcont( (const PLFLT * const *) z, XPTS, YPTS, 1, XPTS, 1, YPTS, clevel, 11,
pltr1, (void *) &cgrid1 );
plstyl( 1, &mark, &space );
plcol0( 3 );
plcont( (const PLFLT * const *) w, XPTS, YPTS, 1, XPTS, 1, YPTS, clevel, 11,
pltr1, (void *) &cgrid1 );
plstyl( 0, &mark, &space );
plcol0( 1 );
pllab( "X Coordinate", "Y Coordinate", "Streamlines of flow" );
//
// pl_setcontlabelparam(0.006, 0.3, 0.1, 1);
// plenv(-1.0, 1.0, -1.0, 1.0, 0, 0);
// plcol0(2);
// plcont((const PLFLT **) z, XPTS, YPTS, 1, XPTS, 1, YPTS, clevel, 11,
// pltr1, (void *) &cgrid1);
//
// plstyl(1, &mark, &space);
// plcol0(3);
// plcont((const PLFLT **) w, XPTS, YPTS, 1, XPTS, 1, YPTS, clevel, 11,
// pltr1, (void *) &cgrid1);
// plstyl(0, &mark, &space);
// plcol0(1);
// pllab("X Coordinate", "Y Coordinate", "Streamlines of flow");
// pl_setcontlabelparam(0.006, 0.3, 0.1, 0);
//
// Plot using 2d coordinate transform
plenv( -1.0, 1.0, -1.0, 1.0, 0, 0 );
plcol0( 2 );
plcont( (const PLFLT * const *) z, XPTS, YPTS, 1, XPTS, 1, YPTS, clevel, 11,
pltr2, (void *) &cgrid2 );
plstyl( 1, &mark, &space );
plcol0( 3 );
plcont( (const PLFLT * const *) w, XPTS, YPTS, 1, XPTS, 1, YPTS, clevel, 11,
pltr2, (void *) &cgrid2 );
plstyl( 0, &mark, &space );
plcol0( 1 );
pllab( "X Coordinate", "Y Coordinate", "Streamlines of flow" );
//
// pl_setcontlabelparam(0.006, 0.3, 0.1, 1);
// plenv(-1.0, 1.0, -1.0, 1.0, 0, 0);
// plcol0(2);
// plcont((const PLFLT **) z, XPTS, YPTS, 1, XPTS, 1, YPTS, clevel, 11,
// pltr2, (void *) &cgrid2);
//
// plstyl(1, &mark, &space);
// plcol0(3);
// plcont((const PLFLT **) w, XPTS, YPTS, 1, XPTS, 1, YPTS, clevel, 11,
// pltr2, (void *) &cgrid2);
// plstyl(0, &mark, &space);
// plcol0(1);
// pllab("X Coordinate", "Y Coordinate", "Streamlines of flow");
//
pl_setcontlabelparam( 0.006, 0.3, 0.1, 0 );
polar();
//
// pl_setcontlabelparam(0.006, 0.3, 0.1, 1);
// polar();
//
pl_setcontlabelparam( 0.006, 0.3, 0.1, 0 );
potential();
//
// pl_setcontlabelparam(0.006, 0.3, 0.1, 1);
// potential();
//
// Clean up
plFree2dGrid( z, XPTS, YPTS );
plFree2dGrid( w, XPTS, YPTS );
plFree2dGrid( cgrid2.xg, XPTS, YPTS );
plFree2dGrid( cgrid2.yg, XPTS, YPTS );
plend();
exit( 0 );
}
bool plotNoiseStandardDeviation(const hoNDArray< std::complex<T> >& m, const std::vector<std::string>& coilStrings,
const std::string& xlabel, const std::string& ylabel, const std::string& title,
size_t xsize, size_t ysize, bool trueColor,
hoNDArray<float>& plotIm)
{
try
{
size_t CHA = m.get_size(0);
GADGET_CHECK_RETURN_FALSE(coilStrings.size() == CHA);
hoNDArray<double> xd, yd, yd2;
xd.create(CHA);
yd.create(CHA);
size_t c;
for (c = 0; c < CHA; c++)
{
xd(c) = c+1;
yd(c) = std::sqrt( std::abs(m(c, c)) );
}
double maxY = Gadgetron::max(&yd);
yd2 = yd;
std::sort(yd2.begin(), yd2.end());
double medY = yd2(CHA / 2);
// increase dot line to be 1 sigma ~= 33%
double medRange = 0.33;
if (maxY < medY*(1 + medRange))
{
maxY = medY*(1 + medRange);
}
hoNDArray<unsigned char> im;
im.create(3, xsize, ysize);
Gadgetron::clear(im);
plsdev("mem");
plsmem(im.get_size(1), im.get_size(2), im.begin());
plinit();
plfont(2);
pladv(0);
plvpor(0.15, 0.75, 0.1, 0.8);
plwind(0, CHA+1, 0, maxY*1.05);
plcol0(15);
plbox("bcnst", 0.0, 0, "bcnstv", 0.0, 0);
std::string gly;
getPlotGlyph(0, gly); // circle
plstring(CHA, xd.begin(), yd.begin(), gly.c_str());
// draw the median line
pllsty(1);
double px[2], py[2];
px[0] = 0;
px[1] = CHA+1;
py[0] = medY;
py[1] = medY;
plline(2, px, py);
pllsty(2);
py[0] = medY*(1 - medRange);
py[1] = medY*(1 - medRange);
plline(2, px, py);
py[0] = medY*(1 + medRange);
py[1] = medY*(1 + medRange);
plline(2, px, py);
plmtex("b", 3.2, 0.5, 0.5, xlabel.c_str());
plmtex("t", 2.0, 0.5, 0.5, title.c_str());
plmtex("l", 5.0, 0.5, 0.5, ylabel.c_str());
// draw the legend
std::vector<PLINT> opt_array(CHA), text_colors(CHA), line_colors(CHA), line_styles(CHA), symbol_numbers(CHA), symbol_colors(CHA);
std::vector<PLFLT> symbol_scales(CHA), line_widths(CHA), box_scales(CHA, 1);
std::vector<const char*> symbols(CHA);
PLFLT legend_width, legend_height;
std::vector<const char*> legend_text(CHA);
std::vector<std::string> legends(CHA);
size_t n;
for (n = 0; n < CHA; n++)
{
opt_array[n] = PL_LEGEND_SYMBOL;
text_colors[n] = 15;
line_colors[n] = 15;
line_styles[n] = (n % 8 + 1);
line_widths[n] = 0.2;
symbol_colors[n] = 15;
symbol_scales[n] = 0.75;
symbol_numbers[n] = 1;
symbols[n] = gly.c_str();
std::ostringstream ostr;
ostr << n+1 << ":" << coilStrings[n];
legends[n] = ostr.str();
legend_text[n] = legends[n].c_str();
}
pllegend(&legend_width,
&legend_height,
PL_LEGEND_BACKGROUND,
PL_POSITION_OUTSIDE | PL_POSITION_RIGHT,
0.02, // x
0.0, // y
0.05, // plot_width
0, // bg_color
15, // bb_color
1, // bb_style
0, // nrow
0, // ncolumn
CHA, // nlegend
&opt_array[0],
0.05, // text_offset
0.5, // text_scale
1.0, // text_spacing
0.5, // text_justification
&text_colors[0],
(const char **)(&legend_text[0]),
NULL, // box_colors
NULL, // box_patterns
&box_scales[0], // box_scales
NULL, // box_line_widths
&line_colors[0],
&line_styles[0],
&line_widths[0],
&symbol_colors[0],
&symbol_scales[0],
&symbol_numbers[0],
(const char **)(&symbols[0])
);
plend();
outputPlotIm(im, trueColor, plotIm);
}
catch (...)
{
GERROR_STREAM("Errors happened in plotNoiseStandardDeviation(...) ... ");
return false;
}
return true;
}
template <typename T> EXPORTGTPLPLOT
bool plotCurves(const std::vector<hoNDArray<T> >& x, const std::vector<hoNDArray<T> >& y,
const std::string& xlabel, const std::string& ylabel,
const std::string& title, const std::vector<std::string>& legend,
const std::vector<std::string>& symbols,
size_t xsize, size_t ysize,
T xlim[2], T ylim[2],
bool trueColor, bool drawLine,
hoNDArray<float>& plotIm)
{
try
{
GADGET_CHECK_RETURN_FALSE(x.size()>0);
GADGET_CHECK_RETURN_FALSE(y.size()>0);
GADGET_CHECK_RETURN_FALSE(x.size() == y.size());
T minX = xlim[0];
T maxX = xlim[1];
T minY = ylim[0];
T maxY = ylim[1];
plsdev("mem");
hoNDArray<unsigned char> im;
im.create(3, xsize, ysize);
Gadgetron::clear(im);
plsmem(im.get_size(1), im.get_size(2), im.begin());
plinit();
plfont(2);
pladv(0);
if (legend.size() == x.size())
{
plvpor(0.11, 0.75, 0.1, 0.9);
}
else
{
plvpor(0.15, 0.85, 0.1, 0.9);
}
T spaceX = 0.01*(maxX - minX);
T spaceY = 0.05*(maxY - minY);
plwind(minX - spaceX, maxX + spaceX, minY - spaceY, maxY + spaceY);
plcol0(15);
plbox("bgcnst", 0.0, 0, "bgcnstv", 0.0, 0);
// int mark[2], space[2];
//mark[0] = 4000;
//space[0] = 2500;
//plstyl(1, mark, space);
size_t num = x.size();
size_t n;
hoNDArray<double> xd, yd;
// draw lines
for (n = 0; n < num; n++)
{
size_t N = y[n].get_size(0);
xd.copyFrom(x[n]);
yd.copyFrom(y[n]);
if (drawLine)
{
int c;
getPlotColor(n, c);
plcol0(c);
pllsty(n % 8 + 1);
plline(N, xd.begin(), yd.begin());
}
std::string gly;
if(symbols.size()>n)
{
gly = symbols[n];
}
else
getPlotGlyph(n, gly);
plstring(N, xd.begin(), yd.begin(), gly.c_str());
}
plcol0(15);
plmtex("b", 3.2, 0.5, 0.5, xlabel.c_str());
plmtex("t", 2.0, 0.5, 0.5, title.c_str());
plmtex("l", 5.0, 0.5, 0.5, ylabel.c_str());
// draw the legend
if (legend.size() == x.size())
{
std::vector<PLINT> opt_array(num), text_colors(num), line_colors(num), line_styles(num), symbol_numbers(num), symbol_colors(num);
std::vector<PLFLT> symbol_scales(num), line_widths(num), box_scales(num, 1);
std::vector<std::string> glyphs(num);
std::vector<const char*> symbols(num);
PLFLT legend_width, legend_height;
std::vector<const char*> legend_text(num);
for (n = 0; n < num; n++)
{
int c;
getPlotColor(n, c);
getPlotGlyph(n, glyphs[n]);
opt_array[n] = PL_LEGEND_SYMBOL | PL_LEGEND_LINE;
text_colors[n] = 15;
line_colors[n] = c;
line_styles[n] = (n%8+1);
line_widths[n] = 0.2;
symbol_colors[n] = c;
symbol_scales[n] = 0.75;
symbol_numbers[n] = 1;
symbols[n] = glyphs[n].c_str();
legend_text[n] = legend[n].c_str();
}
pllegend(&legend_width,
&legend_height,
PL_LEGEND_BACKGROUND,
PL_POSITION_OUTSIDE | PL_POSITION_RIGHT | PL_POSITION_TOP,
0.02, // x
0.0, // y
0.05, // plot_width
0, // bg_color
15, // bb_color
1, // bb_style
0, // nrow
0, // ncolumn
num, // nlegend
&opt_array[0],
0.05, // text_offset
0.35, // text_scale
1.0, // text_spacing
0.5, // text_justification
&text_colors[0],
(const char **)(&legend_text[0]),
NULL, // box_colors
NULL, // box_patterns
&box_scales[0], // box_scales
NULL, // box_line_widths
&line_colors[0],
&line_styles[0],
&line_widths[0],
&symbol_colors[0],
&symbol_scales[0],
&symbol_numbers[0],
(const char **)(&symbols[0])
);
}
plend();
outputPlotIm(im, trueColor, plotIm);
}
catch (...)
{
GERROR_STREAM("Errors happened in plotCurves(xlim, ylim) ... ");
return false;
}
return true;
}
int
main( int argc, const char *argv[] )
{
int i, j, k;
PLFLT *x, *y, **z, *z_row_major, *z_col_major;
PLFLT dx = 2. / (PLFLT) ( XPTS - 1 );
PLFLT dy = 2. / (PLFLT) ( YPTS - 1 );
PLfGrid2 grid_c, grid_row_major, grid_col_major;
PLFLT xx, yy, r;
PLINT ifshade;
PLFLT zmin, zmax, step;
PLFLT clevel[LEVELS];
PLINT nlevel = LEVELS;
PLINT indexxmin = 0;
PLINT indexxmax = XPTS;
PLINT *indexymin;
PLINT *indexymax;
PLFLT **zlimited;
// parameters of ellipse (in x, y index coordinates) that limits the data.
// x0, y0 correspond to the exact floating point centre of the index
// range.
PLFLT x0 = 0.5 * (PLFLT) ( XPTS - 1 );
PLFLT a = 0.9 * x0;
PLFLT y0 = 0.5 * (PLFLT) ( YPTS - 1 );
PLFLT b = 0.7 * y0;
PLFLT square_root;
// Parse and process command line arguments
plMergeOpts( options, "x08c options", NULL );
(void) plparseopts( &argc, argv, PL_PARSE_FULL );
// Initialize plplot
plinit();
// Allocate data structures
x = (PLFLT *) calloc( XPTS, sizeof ( PLFLT ) );
y = (PLFLT *) calloc( YPTS, sizeof ( PLFLT ) );
plAlloc2dGrid( &z, XPTS, YPTS );
z_row_major = (PLFLT *) malloc( XPTS * YPTS * sizeof ( PLFLT ) );
z_col_major = (PLFLT *) malloc( XPTS * YPTS * sizeof ( PLFLT ) );
if ( !z_row_major || !z_col_major )
plexit( "Memory allocation error" );
grid_c.f = z;
grid_row_major.f = (PLFLT **) z_row_major;
grid_col_major.f = (PLFLT **) z_col_major;
grid_c.nx = grid_row_major.nx = grid_col_major.nx = XPTS;
grid_c.ny = grid_row_major.ny = grid_col_major.ny = YPTS;
for ( i = 0; i < XPTS; i++ )
{
x[i] = -1. + (PLFLT) i * dx;
if ( rosen )
x[i] *= 1.5;
}
for ( j = 0; j < YPTS; j++ )
{
y[j] = -1. + (PLFLT) j * dy;
if ( rosen )
y[j] += 0.5;
}
for ( i = 0; i < XPTS; i++ )
{
xx = x[i];
for ( j = 0; j < YPTS; j++ )
{
yy = y[j];
if ( rosen )
{
z[i][j] = pow( 1. - xx, 2. ) + 100. * pow( yy - pow( xx, 2. ), 2. );
// The log argument might be zero for just the right grid.
if ( z[i][j] > 0. )
z[i][j] = log( z[i][j] );
else
z[i][j] = -5.; // -MAXFLOAT would mess-up up the scale
}
else
{
r = sqrt( xx * xx + yy * yy );
z[i][j] = exp( -r * r ) * cos( 2.0 * M_PI * r );
}
z_row_major[i * YPTS + j] = z[i][j];
z_col_major[i + XPTS * j] = z[i][j];
}
}
// Allocate and calculate y index ranges and corresponding zlimited.
plAlloc2dGrid( &zlimited, XPTS, YPTS );
indexymin = (PLINT *) malloc( XPTS * sizeof ( PLINT ) );
indexymax = (PLINT *) malloc( XPTS * sizeof ( PLINT ) );
if ( !indexymin || !indexymax )
plexit( "Memory allocation error" );
//printf("XPTS = %d\n", XPTS);
//printf("x0 = %f\n", x0);
//printf("a = %f\n", a);
//printf("YPTS = %d\n", YPTS);
//printf("y0 = %f\n", y0);
//printf("b = %f\n", b);
// These values should all be ignored because of the i index range.
#if 0
for ( i = 0; i < indexxmin; i++ )
{
indexymin[i] = 0;
indexymax[i] = YPTS;
for ( j = indexymin[i]; j < indexymax[i]; j++ )
// Mark with large value to check this is ignored.
zlimited[i][j] = 1.e300;
}
#endif
for ( i = indexxmin; i < indexxmax; i++ )
{
square_root = sqrt( 1. - MIN( 1., pow( ( (PLFLT) i - x0 ) / a, 2. ) ) );
// Add 0.5 to find nearest integer and therefore preserve symmetry
// with regard to lower and upper bound of y range.
indexymin[i] = MAX( 0, (PLINT) ( 0.5 + y0 - b * square_root ) );
// indexymax calculated with the convention that it is 1
// greater than highest valid index.
indexymax[i] = MIN( YPTS, 1 + (PLINT) ( 0.5 + y0 + b * square_root ) );
//printf("i, b*square_root, indexymin[i], YPTS - indexymax[i] = %d, %e, %d, %d\n", i, b*square_root, indexymin[i], YPTS - indexymax[i]);
#if 0
// These values should all be ignored because of the j index range.
for ( j = 0; j < indexymin[i]; j++ )
// Mark with large value to check this is ignored.
zlimited[i][j] = 1.e300;
#endif
for ( j = indexymin[i]; j < indexymax[i]; j++ )
zlimited[i][j] = z[i][j];
#if 0
// These values should all be ignored because of the j index range.
for ( j = indexymax[i]; j < YPTS; j++ )
// Mark with large value to check this is ignored.
zlimited[i][j] = 1.e300;
#endif
}
#if 0
// These values should all be ignored because of the i index range.
for ( i = indexxmax; i < XPTS; i++ )
{
indexymin[i] = 0;
indexymax[i] = YPTS;
for ( j = indexymin[i]; j < indexymax[i]; j++ )
// Mark with large value to check this is ignored.
zlimited[i][j] = 1.e300;
}
#endif
plMinMax2dGrid( (const PLFLT * const *) z, XPTS, YPTS, &zmax, &zmin );
step = ( zmax - zmin ) / ( nlevel + 1 );
for ( i = 0; i < nlevel; i++ )
clevel[i] = zmin + step + step * i;
pllightsource( 1., 1., 1. );
for ( k = 0; k < 2; k++ )
{
for ( ifshade = 0; ifshade < 5; ifshade++ )
{
pladv( 0 );
plvpor( 0.0, 1.0, 0.0, 0.9 );
plwind( -1.0, 1.0, -0.9, 1.1 );
plcol0( 3 );
plmtex( "t", 1.0, 0.5, 0.5, title[k] );
plcol0( 1 );
if ( rosen )
plw3d( 1.0, 1.0, 1.0, -1.5, 1.5, -0.5, 1.5, zmin, zmax, alt[k], az[k] );
else
plw3d( 1.0, 1.0, 1.0, -1.0, 1.0, -1.0, 1.0, zmin, zmax, alt[k], az[k] );
plbox3( "bnstu", "x axis", 0.0, 0,
"bnstu", "y axis", 0.0, 0,
"bcdmnstuv", "z axis", 0.0, 0 );
plcol0( 2 );
if ( ifshade == 0 ) // diffuse light surface plot
{
cmap1_init( 1 );
plfsurf3d( x, y, plf2ops_c(), (PLPointer) z, XPTS, YPTS, 0, NULL, 0 );
}
else if ( ifshade == 1 ) // magnitude colored plot
{
cmap1_init( 0 );
plfsurf3d( x, y, plf2ops_grid_c(), ( PLPointer ) & grid_c, XPTS, YPTS, MAG_COLOR, NULL, 0 );
}
else if ( ifshade == 2 ) // magnitude colored plot with faceted squares
{
cmap1_init( 0 );
plfsurf3d( x, y, plf2ops_grid_row_major(), ( PLPointer ) & grid_row_major, XPTS, YPTS, MAG_COLOR | FACETED, NULL, 0 );
}
else if ( ifshade == 3 ) // magnitude colored plot with contours
{
cmap1_init( 0 );
plfsurf3d( x, y, plf2ops_grid_col_major(), ( PLPointer ) & grid_col_major, XPTS, YPTS, MAG_COLOR | SURF_CONT | BASE_CONT, clevel, nlevel );
}
else // magnitude colored plot with contours and index limits.
{
cmap1_init( 0 );
plsurf3dl( x, y, (const PLFLT * const *) zlimited, XPTS, YPTS, MAG_COLOR | SURF_CONT | BASE_CONT, clevel, nlevel, indexxmin, indexxmax, indexymin, indexymax );
}
}
}
// Clean up
free( (void *) x );
free( (void *) y );
plFree2dGrid( z, XPTS, YPTS );
free( (void *) z_row_major );
free( (void *) z_col_major );
plFree2dGrid( zlimited, XPTS, YPTS );
free( (void *) indexymin );
free( (void *) indexymax );
plend();
exit( 0 );
}
int
main(int argc, char *argv[])
{
int i, j;
PLFLT dtr, theta, dx, dy, r;
char text[4];
static PLFLT x0[361], y0[361];
static PLFLT x[361], y[361];
dtr = PI / 180.0;
for (i = 0; i <= 360; i++) {
x0[i] = cos(dtr * i);
y0[i] = sin(dtr * i);
}
/* Parse and process command line arguments */
(void) plparseopts(&argc, argv, PL_PARSE_FULL);
/* Initialize plplot */
plinit();
/* Set up viewport and window, but do not draw box */
plenv(-1.3, 1.3, -1.3, 1.3, 1, -2);
for (i = 1; i <= 10; i++) {
for (j = 0; j <= 360; j++) {
x[j] = 0.1 * i * x0[j];
y[j] = 0.1 * i * y0[j];
}
/* Draw circles for polar grid */
plline(361, x, y);
}
plcol0(2);
for (i = 0; i <= 11; i++) {
theta = 30.0 * i;
dx = cos(dtr * theta);
dy = sin(dtr * theta);
/* Draw radial spokes for polar grid */
pljoin(0.0, 0.0, dx, dy);
sprintf(text, "%d", ROUND(theta));
/* Write labels for angle */
/* Slightly off zero to avoid floating point logic flips at 90 and 270 deg. */
if (dx >= -0.00001)
plptex(dx, dy, dx, dy, -0.15, text);
else
plptex(dx, dy, -dx, -dy, 1.15, text);
}
/* Draw the graph */
for (i = 0; i <= 360; i++) {
r = sin(dtr * (5 * i));
x[i] = x0[i] * r;
y[i] = y0[i] * r;
}
plcol0(3);
plline(361, x, y);
plcol0(4);
plmtex("t", 2.0, 0.5, 0.5, "#frPLplot Example 3 - r(#gh)=sin 5#gh");
/* Close the plot at end */
plend();
exit(0);
}
int
main( int argc, const char *argv[] )
{
int i, j, k;
int npts = 0;
PLFLT xextreme[10][2];
PLFLT yextreme[10][2];
PLFLT x0[10];
PLFLT y0[10];
// Parse and process command line arguments
(void) plparseopts( &argc, argv, PL_PARSE_FULL );
// Initialize plplot
plssub( 3, 3 );
plinit();
xextreme[0][0] = -120.0; xextreme[0][1] = 120.0; yextreme[0][0] = -120.0; yextreme[0][1] = 120.0;
xextreme[1][0] = -120.0; xextreme[1][1] = 120.0; yextreme[1][0] = 20.0; yextreme[1][1] = 120.0;
xextreme[2][0] = -120.0; xextreme[2][1] = 120.0; yextreme[2][0] = -20.0; yextreme[2][1] = 120.0;
xextreme[3][0] = -80.0; xextreme[3][1] = 80.0; yextreme[3][0] = -20.0; yextreme[3][1] = 120.0;
xextreme[4][0] = -220.0; xextreme[4][1] = -120.0; yextreme[4][0] = -120.0; yextreme[4][1] = 120.0;
xextreme[5][0] = -20.0; xextreme[5][1] = 20.0; yextreme[5][0] = -120.0; yextreme[5][1] = 120.0;
xextreme[6][0] = -20.0; xextreme[6][1] = 20.0; yextreme[6][0] = -20.0; yextreme[6][1] = 20.0;
xextreme[7][0] = -80.0; xextreme[7][1] = 80.0; yextreme[7][0] = -80.0; yextreme[7][1] = 80.0;
xextreme[8][0] = 20.0; xextreme[8][1] = 120.0; yextreme[8][0] = -120.0; yextreme[8][1] = 120.0;
for ( k = 0; k < 2; k++ )
{
for ( j = 0; j < 4; j++ )
{
if ( j == 0 )
{
// Polygon 1: a diamond
x0[0] = 0; y0[0] = -100;
x0[1] = -100; y0[1] = 0;
x0[2] = 0; y0[2] = 100;
x0[3] = 100; y0[3] = 0;
npts = 4;
}
if ( j == 1 )
{
// Polygon 1: a diamond - reverse direction
x0[3] = 0; y0[3] = -100;
x0[2] = -100; y0[2] = 0;
x0[1] = 0; y0[1] = 100;
x0[0] = 100; y0[0] = 0;
npts = 4;
}
if ( j == 2 )
{
// Polygon 2: a square with punctures
x0[0] = -100; y0[0] = -100;
x0[1] = -100; y0[1] = -80;
x0[2] = 80; y0[2] = 0;
x0[3] = -100; y0[3] = 80;
x0[4] = -100; y0[4] = 100;
x0[5] = -80; y0[5] = 100;
x0[6] = 0; y0[6] = 80;
x0[7] = 80; y0[7] = 100;
x0[8] = 100; y0[8] = 100;
x0[9] = 100; y0[9] = -100;
npts = 10;
}
if ( j == 3 )
{
// Polygon 2: a square with punctures - reversed direction
x0[9] = -100; y0[9] = -100;
x0[8] = -100; y0[8] = -80;
x0[7] = 80; y0[7] = 0;
x0[6] = -100; y0[6] = 80;
x0[5] = -100; y0[5] = 100;
x0[4] = -80; y0[4] = 100;
x0[3] = 0; y0[3] = 80;
x0[2] = 80; y0[2] = 100;
x0[1] = 100; y0[1] = 100;
x0[0] = 100; y0[0] = -100;
npts = 10;
}
for ( i = 0; i < 9; i++ )
{
pladv( 0 );
plvsta();
plwind( xextreme[i][0], xextreme[i][1], yextreme[i][0], yextreme[i][1] );
plcol0( 2 );
plbox( "bc", 1.0, 0, "bcnv", 10.0, 0 );
plcol0( 1 );
plpsty( 0 );
if ( k == 0 )
plfill( npts, x0, y0 );
else
plgradient( npts, x0, y0, 45. );
plcol0( 2 );
pllsty( 1 );
plline( npts, x0, y0 );
}
}
}
// Don't forget to call plend() to finish off!
plend();
exit( 0 );
}
/*
* Plot specified x/y coordinates, x as int32_t and y as float, with an arbitrary number
* of separate lines, as lines and/or points.
* Output is PDF file, location specified by 'fileName'.
*/
int plplotLines(
PlplotSetup *setup,
uint32_t numSamples, /* size of ix[] and fy[] arrays */
uint32_t numLines, /* size of lineDef[] array */
int32_t *ix, /* numSamples */
LineDef *lineDef, /* numLines */
const char *graphName,
const char *fileName,
bool plotPoints, /* true: plot points */
bool plotLine, /* true: plot line */
bool skipTrailZeroes) /* don't plot zero Y values at end of graph */
{
if(setup == NULL) {
printf("***plplotLine: setup required\n");
return -1;
}
char tmpFile[TEMP_FN_LEN];
makeTempFile(tmpFile, TEMP_FN_LEN);
PLFLT fx[numSamples];
PLFLT minX = setup->minX;
PLFLT maxX = setup->maxX;
PLFLT minY = setup->minY;
PLFLT maxY = setup->maxY;
for(uint32_t dex=0; dex<numSamples; dex++) {
fx[dex] = ix[dex];
}
const char *yName = "";
if(setup->yAxisName) {
yName = setup->yAxisName;
}
const char *xName = "";
if(setup->xAxisName) {
xName = setup->xAxisName;
}
plsdev ("psc");
/* standard: background white, foreground (axes, labels, etc.) black */
plscolbg(PLOT_WHITE);
plscol0(1, PLOT_BLACK);
plsfnam(tmpFile);
plsdiori(1.0); // portrait
plinit();
plenv(minX, maxX, minY, maxY, 0, 0);
pllab(xName, yName, graphName);
for(uint32_t dex=0; dex<numLines; dex++) {
uint32_t thisSamples = numSamples;
if(skipTrailZeroes) {
while((lineDef[dex].fy[thisSamples-1] == 0.0) && (thisSamples > 0)) {
thisSamples--;
}
if(thisSamples == 0) {
printf("***plplotLines: Warning: line with all zeroes skipped\n");
continue;
}
}
plotOneLine(thisSamples, fx, &lineDef[dex], plotPoints, plotLine);
}
plend();
int ourRtn = psToPdf(tmpFile, fileName);
unlink(tmpFile);
return ourRtn;
}
/*
* Plot a histogram of prebinned data. X values are int32_t's, and the corresponding
* Y values - the counts for each X - are uint32_t's.
*/
int plplotBins(
uint32_t numBins,
const int32_t *x, /* numBins of X values, monotonically increasing */
const uint32_t *y, /* numBins of Y values for each associated X */
const char *graphName,
const char *fileName,
const char *xAxisName, /* optional */
const char *yAxisName) /* optional */
{
char tmpFile[TEMP_FN_LEN];
makeTempFile(tmpFile, TEMP_FN_LEN);
PLINT totalBins = numBins + 2;
/* PLFLT array of sample values */
PLFLT *xf = (PLFLT *)malloc(totalBins * sizeof(PLFLT));
/* these two will have Y values of zero */
xf[0] = x[0] - 1;
xf[totalBins - 1] = x[numBins-1] + 1;
const int32_t *ip = x;
PLFLT *op = xf + 1;
for(uint32_t dex=0; dex<numBins; dex++) {
*op++ = *ip++;
}
/* PLFLT array of bins */
PLFLT *yf = (PLFLT *)malloc(totalBins * sizeof(PLFLT));
yf[0] = 0.0;
yf[totalBins - 1] = 0.0;
const uint32_t *uip = y;
op = yf + 1;
for(uint32_t dex=0; dex<numBins; dex++) {
*op++ = *uip++;
}
/* get max Y value */
uint32_t maxY = 0;
uip = y;
for(uint32_t dex=0; dex<numBins; dex++) {
uint32_t currY = *uip++;
if(currY > maxY) {
maxY = currY;
}
}
const char *yName = yAxisName ? yAxisName : "";
const char *xName = xAxisName ? xAxisName : "";
#if HIST_COLOR
plsdev ("psc");
plscolbg(255, 255, 255); /* white background */
#else
plsdev ("ps");
#endif
plsfnam(tmpFile);
plsdiori(1.0); // portrait
plinit();
plenv(xf[0], xf[totalBins - 1], 0, maxY, 0, 0);
#if HIST_COLOR
/* can we alter colors of lines and the spaces inside the histograms? */
plscolbg(255, 0, 0); /* red background */
plscol0(1, 255, 0, 0); /* red foreground - no effect */
#endif
pllab(xName, yName, graphName);
plbin(totalBins, xf, yf, PL_BIN_CENTRED);
plend();
free(xf);
free(yf);
int ourRtn = psToPdf(tmpFile, fileName);
unlink(tmpFile);
return ourRtn;
}
int main( int argc, const char *argv[] )
{
PLFLT *x, *y, **z,
xmin = 0., xmax = 1.0, xmid = 0.5 * ( xmax + xmin ), xrange = xmax - xmin,
ymin = 0., ymax = 1.0, ymid = 0.5 * ( ymax + ymin ), yrange = ymax - ymin,
zmin = 0., zmax = 1.0, zmid = 0.5 * ( zmax + zmin ), zrange = zmax - zmin,
ysmin = ymin + 0.1 * yrange,
ysmax = ymax - 0.1 * yrange,
ysrange = ysmax - ysmin,
dysrot = ysrange / (PLFLT) ( NROTATION - 1 ),
dysshear = ysrange / (PLFLT) ( NSHEAR - 1 ),
zsmin = zmin + 0.1 * zrange,
zsmax = zmax - 0.1 * zrange,
zsrange = zsmax - zsmin,
dzsrot = zsrange / (PLFLT) ( NROTATION - 1 ),
dzsshear = zsrange / (PLFLT) ( NSHEAR - 1 ),
ys, zs,
x_inclination, y_inclination, z_inclination,
x_shear, y_shear, z_shear,
omega, sin_omega, cos_omega, domega;
int i, j;
PLFLT radius, pitch, xpos, ypos, zpos;
// p1string must be exactly one character + the null termination
// character.
char p1string[] = "O";
const char *pstring = "The future of our civilization depends on software freedom.";
// Allocate and define the minimal x, y, and z to insure 3D box
x = (PLFLT *) calloc( XPTS, sizeof ( PLFLT ) );
y = (PLFLT *) calloc( YPTS, sizeof ( PLFLT ) );
plAlloc2dGrid( &z, XPTS, YPTS );
for ( i = 0; i < XPTS; i++ )
{
x[i] = xmin + (double) i * ( xmax - xmin ) / (double) ( XPTS - 1 );
}
for ( j = 0; j < YPTS; j++ )
y[j] = ymin + (double) j * ( ymax - ymin ) / (double) ( YPTS - 1 );
for ( i = 0; i < XPTS; i++ )
{
for ( j = 0; j < YPTS; j++ )
{
z[i][j] = 0.;
}
}
// Parse and process command line arguments
(void) plparseopts( &argc, argv, PL_PARSE_FULL );
plinit();
// Page 1: Demonstrate inclination and shear capability pattern.
pladv( 0 );
plvpor( -0.15, 1.15, -0.05, 1.05 );
plwind( -1.2, 1.2, -0.8, 1.5 );
plw3d( 1.0, 1.0, 1.0, xmin, xmax, ymin, ymax, zmin, zmax,
20., 45. );
plcol0( 2 );
plbox3( "b", "", xmax - xmin, 0,
"b", "", ymax - ymin, 0,
"bcd", "", zmax - zmin, 0 );
// z = zmin.
plschr( 0., 1.0 );
for ( i = 0; i < NREVOLUTION; i++ )
{
omega = 2. * M_PI * ( (PLFLT) i / (PLFLT) NREVOLUTION );
sin_omega = sin( omega );
cos_omega = cos( omega );
x_inclination = 0.5 * xrange * cos_omega;
y_inclination = 0.5 * yrange * sin_omega;
z_inclination = 0.;
x_shear = -0.5 * xrange * sin_omega;
y_shear = 0.5 * yrange * cos_omega;
z_shear = 0.;
plptex3(
xmid, ymid, zmin,
x_inclination, y_inclination, z_inclination,
x_shear, y_shear, z_shear,
0.0, " revolution" );
}
// x = xmax.
plschr( 0., 1.0 );
for ( i = 0; i < NREVOLUTION; i++ )
{
omega = 2. * M_PI * ( (PLFLT) i / (PLFLT) NREVOLUTION );
sin_omega = sin( omega );
cos_omega = cos( omega );
x_inclination = 0.;
y_inclination = -0.5 * yrange * cos_omega;
z_inclination = 0.5 * zrange * sin_omega;
x_shear = 0.;
y_shear = 0.5 * yrange * sin_omega;
z_shear = 0.5 * zrange * cos_omega;
plptex3(
xmax, ymid, zmid,
x_inclination, y_inclination, z_inclination,
x_shear, y_shear, z_shear,
0.0, " revolution" );
}
// y = ymax.
plschr( 0., 1.0 );
for ( i = 0; i < NREVOLUTION; i++ )
{
omega = 2. * M_PI * ( (PLFLT) i / (PLFLT) NREVOLUTION );
sin_omega = sin( omega );
cos_omega = cos( omega );
x_inclination = 0.5 * xrange * cos_omega;
y_inclination = 0.;
z_inclination = 0.5 * zrange * sin_omega;
x_shear = -0.5 * xrange * sin_omega;
y_shear = 0.;
z_shear = 0.5 * zrange * cos_omega;
plptex3(
xmid, ymax, zmid,
x_inclination, y_inclination, z_inclination,
x_shear, y_shear, z_shear,
0.0, " revolution" );
}
// Draw minimal 3D grid to finish defining the 3D box.
plmesh( x, y, (const PLFLT * const *) z, XPTS, YPTS, DRAW_LINEXY );
// Page 2: Demonstrate rotation of string around its axis.
pladv( 0 );
plvpor( -0.15, 1.15, -0.05, 1.05 );
plwind( -1.2, 1.2, -0.8, 1.5 );
plw3d( 1.0, 1.0, 1.0, xmin, xmax, ymin, ymax, zmin, zmax,
20., 45. );
plcol0( 2 );
plbox3( "b", "", xmax - xmin, 0,
"b", "", ymax - ymin, 0,
"bcd", "", zmax - zmin, 0 );
// y = ymax.
plschr( 0., 1.0 );
x_inclination = 1.;
y_inclination = 0.;
z_inclination = 0.;
x_shear = 0.;
for ( i = 0; i < NROTATION; i++ )
{
omega = 2. * M_PI * ( (PLFLT) i / (PLFLT) NROTATION );
sin_omega = sin( omega );
cos_omega = cos( omega );
y_shear = 0.5 * yrange * sin_omega;
z_shear = 0.5 * zrange * cos_omega;
zs = zsmax - dzsrot * (PLFLT) i;
plptex3(
xmid, ymax, zs,
x_inclination, y_inclination, z_inclination,
x_shear, y_shear, z_shear,
0.5, "rotation for y = y#dmax#u" );
}
// x = xmax.
plschr( 0., 1.0 );
x_inclination = 0.;
y_inclination = -1.;
z_inclination = 0.;
y_shear = 0.;
for ( i = 0; i < NROTATION; i++ )
{
omega = 2. * M_PI * ( (PLFLT) i / (PLFLT) NROTATION );
sin_omega = sin( omega );
cos_omega = cos( omega );
x_shear = 0.5 * xrange * sin_omega;
z_shear = 0.5 * zrange * cos_omega;
zs = zsmax - dzsrot * (PLFLT) i;
plptex3(
xmax, ymid, zs,
x_inclination, y_inclination, z_inclination,
x_shear, y_shear, z_shear,
0.5, "rotation for x = x#dmax#u" );
}
// z = zmin.
plschr( 0., 1.0 );
x_inclination = 1.;
y_inclination = 0.;
z_inclination = 0.;
x_shear = 0.;
for ( i = 0; i < NROTATION; i++ )
{
omega = 2. * M_PI * ( (PLFLT) i / (PLFLT) NROTATION );
sin_omega = sin( omega );
cos_omega = cos( omega );
y_shear = 0.5 * yrange * cos_omega;
z_shear = 0.5 * zrange * sin_omega;
ys = ysmax - dysrot * (PLFLT) i;
plptex3(
xmid, ys, zmin,
x_inclination, y_inclination, z_inclination,
x_shear, y_shear, z_shear,
0.5, "rotation for z = z#dmin#u" );
}
// Draw minimal 3D grid to finish defining the 3D box.
plmesh( x, y, (const PLFLT * const *) z, XPTS, YPTS, DRAW_LINEXY );
// Page 3: Demonstrate shear of string along its axis.
// Work around xcairo and pngcairo (but not pscairo) problems for
// shear vector too close to axis of string. (N.B. no workaround
// would be domega = 0.)
domega = 0.05;
pladv( 0 );
plvpor( -0.15, 1.15, -0.05, 1.05 );
plwind( -1.2, 1.2, -0.8, 1.5 );
plw3d( 1.0, 1.0, 1.0, xmin, xmax, ymin, ymax, zmin, zmax,
20., 45. );
plcol0( 2 );
plbox3( "b", "", xmax - xmin, 0,
"b", "", ymax - ymin, 0,
"bcd", "", zmax - zmin, 0 );
// y = ymax.
plschr( 0., 1.0 );
x_inclination = 1.;
y_inclination = 0.;
z_inclination = 0.;
y_shear = 0.;
for ( i = 0; i < NSHEAR; i++ )
{
omega = domega + 2. * M_PI * ( (PLFLT) i / (PLFLT) NSHEAR );
sin_omega = sin( omega );
cos_omega = cos( omega );
x_shear = 0.5 * xrange * sin_omega;
z_shear = 0.5 * zrange * cos_omega;
zs = zsmax - dzsshear * (PLFLT) i;
plptex3(
xmid, ymax, zs,
x_inclination, y_inclination, z_inclination,
x_shear, y_shear, z_shear,
0.5, "shear for y = y#dmax#u" );
}
// x = xmax.
plschr( 0., 1.0 );
x_inclination = 0.;
y_inclination = -1.;
z_inclination = 0.;
x_shear = 0.;
for ( i = 0; i < NSHEAR; i++ )
{
omega = domega + 2. * M_PI * ( (PLFLT) i / (PLFLT) NSHEAR );
sin_omega = sin( omega );
cos_omega = cos( omega );
y_shear = -0.5 * yrange * sin_omega;
z_shear = 0.5 * zrange * cos_omega;
zs = zsmax - dzsshear * (PLFLT) i;
plptex3(
xmax, ymid, zs,
x_inclination, y_inclination, z_inclination,
x_shear, y_shear, z_shear,
0.5, "shear for x = x#dmax#u" );
}
// z = zmin.
plschr( 0., 1.0 );
x_inclination = 1.;
y_inclination = 0.;
z_inclination = 0.;
z_shear = 0.;
for ( i = 0; i < NSHEAR; i++ )
{
omega = domega + 2. * M_PI * ( (PLFLT) i / (PLFLT) NSHEAR );
sin_omega = sin( omega );
cos_omega = cos( omega );
y_shear = 0.5 * yrange * cos_omega;
x_shear = 0.5 * xrange * sin_omega;
ys = ysmax - dysshear * (PLFLT) i;
plptex3(
xmid, ys, zmin,
x_inclination, y_inclination, z_inclination,
x_shear, y_shear, z_shear,
0.5, "shear for z = z#dmin#u" );
}
// Draw minimal 3D grid to finish defining the 3D box.
plmesh( x, y, (const PLFLT * const *) z, XPTS, YPTS, DRAW_LINEXY );
// Page 4: Demonstrate drawing a string on a 3D path.
pladv( 0 );
plvpor( -0.15, 1.15, -0.05, 1.05 );
plwind( -1.2, 1.2, -0.8, 1.5 );
plw3d( 1.0, 1.0, 1.0, xmin, xmax, ymin, ymax, zmin, zmax,
40., -30. );
plcol0( 2 );
plbox3( "b", "", xmax - xmin, 0,
"b", "", ymax - ymin, 0,
"bcd", "", zmax - zmin, 0 );
plschr( 0., 1.2 );
// domega controls the spacing between the various characters of the
// string and also the maximum value of omega for the given number
// of characters in *pstring.
domega = 2. * M_PI / (double) strlen( pstring );
omega = 0.;
// 3D function is a helix of the given radius and pitch
radius = 0.5;
pitch = 1. / ( 2. * M_PI );
while ( *pstring )
{
sin_omega = sin( omega );
cos_omega = cos( omega );
xpos = xmid + radius * sin_omega;
ypos = ymid - radius * cos_omega;
zpos = zmin + pitch * omega;
// In general, the inclination is proportional to the derivative of
// the position wrt theta.
x_inclination = radius * cos_omega;;
y_inclination = radius * sin_omega;
z_inclination = pitch;
// The shear vector should be perpendicular to the 3D line with Z
// component maximized, but for low pitch a good approximation is
// a constant vector that is parallel to the Z axis.
x_shear = 0.;
y_shear = 0.;
z_shear = 1.;
*p1string = *pstring;
plptex3(
xpos, ypos, zpos,
x_inclination, y_inclination, z_inclination,
x_shear, y_shear, z_shear,
0.5, p1string );
pstring++;
omega += domega;
}
// Draw minimal 3D grid to finish defining the 3D box.
plmesh( x, y, (const PLFLT * const *) z, XPTS, YPTS, DRAW_LINEXY );
// Page 5: Demonstrate plmtex3 axis labelling capability
pladv( 0 );
plvpor( -0.15, 1.15, -0.05, 1.05 );
plwind( -1.2, 1.2, -0.8, 1.5 );
plw3d( 1.0, 1.0, 1.0, xmin, xmax, ymin, ymax, zmin, zmax,
20., 45. );
plcol0( 2 );
plbox3( "b", "", xmax - xmin, 0,
"b", "", ymax - ymin, 0,
"bcd", "", zmax - zmin, 0 );
plschr( 0., 1.0 );
plmtex3( "xp", 3.0, 0.5, 0.5, "Arbitrarily displaced" );
plmtex3( "xp", 4.5, 0.5, 0.5, "primary X-axis label" );
plmtex3( "xs", -2.5, 0.5, 0.5, "Arbitrarily displaced" );
plmtex3( "xs", -1.0, 0.5, 0.5, "secondary X-axis label" );
plmtex3( "yp", 3.0, 0.5, 0.5, "Arbitrarily displaced" );
plmtex3( "yp", 4.5, 0.5, 0.5, "primary Y-axis label" );
plmtex3( "ys", -2.5, 0.5, 0.5, "Arbitrarily displaced" );
plmtex3( "ys", -1.0, 0.5, 0.5, "secondary Y-axis label" );
plmtex3( "zp", 4.5, 0.5, 0.5, "Arbitrarily displaced" );
plmtex3( "zp", 3.0, 0.5, 0.5, "primary Z-axis label" );
plmtex3( "zs", -2.5, 0.5, 0.5, "Arbitrarily displaced" );
plmtex3( "zs", -1.0, 0.5, 0.5, "secondary Z-axis label" );
// Draw minimal 3D grid to finish defining the 3D box.
plmesh( x, y, (const PLFLT * const *) z, XPTS, YPTS, DRAW_LINEXY );
// Clean up.
free( (void *) x );
free( (void *) y );
plFree2dGrid( z, XPTS, YPTS );
plend();
exit( 0 );
}