static void
plot1( void )
{
PLFLT shade_min, shade_max, sh_color;
PLINT sh_cmap = 0, sh_width;
PLINT min_color = 0, min_width = 0, max_color = 0, max_width = 0;
pladv( 0 );
plvpor( 0.1, 0.9, 0.1, 0.9 );
plwind( -1.0, 1.0, -1.0, 1.0 );
/* Plot using identity transform */
shade_min = zmin + ( zmax - zmin ) * 0.4;
shade_max = zmin + ( zmax - zmin ) * 0.6;
sh_color = 7;
sh_width = 2;
min_color = 9;
max_color = 2;
min_width = 2;
max_width = 2;
plpsty( 8 );
plshade1( &z[0][0], XPTS, YPTS, NULL, -1., 1., -1., 1.,
shade_min, shade_max,
sh_cmap, sh_color, sh_width,
min_color, min_width, max_color, max_width,
plfill, 1, NULL, NULL );
plcol0( 1 );
plbox( "bcnst", 0.0, 0, "bcnstv", 0.0, 0 );
plcol0( 2 );
pllab( "distance", "altitude", "Bogon flux" );
}
static void
plot3( void )
{
static PLFLT xx[2][5] = { { -1.0, 1.0, 1.0, -1.0, -1.0 },
{ -1.0, 1.0, 1.0, -1.0, -1.0 } };
static PLFLT yy[2][5] = { { 1.0, 1.0, 0.0, 0.0, 1.0 },
{ -1.0, -1.0, 0.0, 0.0, -1.0 } };
static PLFLT zz[2][5] = { { 0.0, 0.0, 1.0, 1.0, 0.0 },
{ 0.0, 0.0, 1.0, 1.0, 0.0 } };
pladv( 0 );
plvpor( 0.1, 0.9, 0.1, 0.9 );
plwind( -1.0, 1.0, -1.0, 1.0 );
plw3d( 1., 1., 1., -1.0, 1.0, -1.0, 1.0, 0.0, 1.5, 30, -40 );
/* Plot using identity transform */
plcol0( 1 );
plbox3( "bntu", "X", 0.0, 0, "bntu", "Y", 0.0, 0, "bcdfntu", "Z", 0.5, 0 );
plcol0( 2 );
pllab( "", "", "3-d polygon filling" );
plcol0( 3 );
plpsty( 1 );
plline3( 5, xx[0], yy[0], zz[0] );
plfill3( 4, xx[0], yy[0], zz[0] );
plpsty( 2 );
plline3( 5, xx[1], yy[1], zz[1] );
plfill3( 4, xx[1], yy[1], zz[1] );
}
//--------------------------------------------------------------------------
//! Clear current subpage. Subpages can be set with pladv before
//! calling plclear. Not all drivers support this.
//
void
c_plclear( void )
{
if ( m_plsc->level < 1 )
{
plabort( "plclear: Please call plinit first" );
return;
}
if ( m_plsc->dev_clear )
plP_esc( PLESC_CLEAR, NULL );
else // driver does not support clear, fill using background color
{
short x[5], y[5];
int ocolor = m_plsc->icol0;
x[0] = x[3] = x[4] = (short) m_plsc->sppxmi;
x[1] = x[2] = (short) m_plsc->sppxma;
y[0] = y[1] = y[4] = (short) m_plsc->sppymi;
y[2] = y[3] = (short) m_plsc->sppyma;
plcol0( 0 );
plP_fill( x, y, 5 );
plcol0( ocolor );
}
}
void
plot2( void )
{
int i;
// Set up the viewport and window using PLENV. The range in X is -2.0 to
// 10.0, and the range in Y is -0.4 to 2.0. The axes are scaled separately
// (just = 0), and we draw a box with axes (axis = 1).
//
plcol0( 1 );
plenv( -2.0, 10.0, -0.4, 1.2, 0, 1 );
plcol0( 2 );
pllab( "(x)", "sin(x)/x", "#frPLplot Example 1 - Sinc Function" );
// Fill up the arrays
for ( i = 0; i < 100; i++ )
{
x[i] = ( i - 19.0 ) / 6.0;
y[i] = 1.0;
if ( x[i] != 0.0 )
y[i] = sin( x[i] ) / x[i];
}
// Draw the line
plcol0( 3 );
plwidth( 2 );
plline( 100, x, y );
plwidth( 1 );
}
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);
}
BarChart2::BarChart2(MyPlotwindow *m_plot, wxString filename, PlotParam b2style)
{
pls = m_plot->GetStream();
wxFileInputStream fin( filename );
wxTextInputStream text( fin );
double x[36];
float a[36],b[36];
for(int i=0;i<36;i++)
{
x[i]=i+1.0;
text>>b[i]>>a[i];
}
pls->adv( 0 );
pls->vsta();
pls->wind( 0, 37, -b2style.ymax*0.001, b2style.ymax*0.001 );
plcol0( 15 );
pls->box( "abcnt", 5.0, 0, "bcntv", 0, 0 );
pls->lab( "quad index", "#gDk#d1#ul (1/m)", "" );
plcol0( 0 );
plcol1( 1 );
plpsty( 0 );
for (int i = 0; i < 36; i++ )
{
plfbox_solid( x[i]-0.3, b[i], 0.25);
}
plcol1( 0 );
plpsty( 0 ); //pls->lsty( 1 );
for (int i = 0; i < 36; i++ )
{
plfbox_solid( x[i]+0.05, a[i] , 0.25);
}
//legend
pls->vpor(0.15, 0.28, 0.75, 0.85);
pls->wind( 0, 1, 0, 1 );
plcol0( 5 );
pls->box( "bc", 0, 0, "bc", 0, 0 );
pls->ptex( 0.4, 0.7, 0.0, 0.0, 0, "before" );
pls->ptex( 0.4, 0.2, 0.0, 0.0, 0, "after " );
plcol1( 1 );
PLFLT x1[]={0.1,0.1,0.35,0.35};
PLFLT y1[]={0.7,0.8,0.8 ,0.7};
pls->fill( 4, x1, y1 );
PLFLT x2[]={0.1,0.1,0.35 ,0.35 };
PLFLT y2[]={0.2,0.3,0.3 ,0.2};
plcol1( 0 );
pls->fill( 4, x2, y2 );
m_plot->RenewPlot();
}
void PlPlotWidget::plotLinearFit(int size, std::vector<double> &xp,std::vector<double> &yp,std::vector<double> &yp_err, double m, double c){
plot->clearWidget();
//plot->setBackgroundColor(255,255,255,1);
int i;
double max_x, max_y;
std::vector<double>::iterator result_min_x, result_max_x;
std::vector<double>::iterator result_min_y, result_max_y;
PLFLT *x = new PLFLT[size];
PLFLT *y = new PLFLT[size];
PLFLT *y_fit = new PLFLT[size];
PLFLT *y_err_hi = new PLFLT[size];
PLFLT *y_err_lo = new PLFLT[size];
for(i=0;i<size;i++){ // is there a better way with first value
x[i]=xp[i];
y[i]=yp[i];
y_fit[i]=m*xp[i]+c;
y_err_hi[i]=yp[i]+yp_err[i];
y_err_lo[i]=yp[i]-yp_err[i];
}
result_min_x = std::min_element(xp.begin(), xp.end());
result_max_x = std::max_element(xp.begin(), xp.end());
result_min_y = std::min_element(yp.begin(), yp.end());
result_max_y = std::max_element(yp.begin(), yp.end());
max_x = (*result_max_x)*(1.2); //sets the axis to be 20% larger than the max value
max_y = (*result_max_y)*(1.2);
plcol0( 14 );
plenv( 0, max_x, 0, max_y, 0, 1 );
plcol0( 1 );
pllab( "time (s)", "\gl", "FRAP DATA" );
plcol0( 14 );
plwid( 2 );
plpoin( size, x, y, 20);
plerry( size, x, y_err_hi,y_err_lo);
plwid( 1 );
plcol0( 14 );
plwid( 2 );
plline( size, x, y_fit );
plwid( 1 );
delete[] x;
delete[] y;
delete[] y_fit;
delete[] y_err_hi;
delete[] y_err_lo;
}
static void polar( void )
//polar contour plot example.
{
int i, j;
PLcGrid2 cgrid2;
PLFLT **z;
PLFLT px[PERIMETERPTS], py[PERIMETERPTS];
PLFLT t, r, theta;
PLFLT lev[10];
plenv( -1., 1., -1., 1., 0, -2 );
plcol0( 1 );
//Perimeter
for ( i = 0; i < PERIMETERPTS; i++ )
{
t = ( 2. * M_PI / ( PERIMETERPTS - 1 ) ) * (double) i;
px[i] = cos( t );
py[i] = sin( t );
}
plline( PERIMETERPTS, px, py );
//create data to be contoured.
plAlloc2dGrid( &cgrid2.xg, RPTS, THETAPTS );
plAlloc2dGrid( &cgrid2.yg, RPTS, THETAPTS );
plAlloc2dGrid( &z, RPTS, THETAPTS );
cgrid2.nx = RPTS;
cgrid2.ny = THETAPTS;
for ( i = 0; i < RPTS; i++ )
{
r = i / (double) ( RPTS - 1 );
for ( j = 0; j < THETAPTS; j++ )
{
theta = ( 2. * M_PI / (double) ( THETAPTS - 1 ) ) * (double) j;
cgrid2.xg[i][j] = r * cos( theta );
cgrid2.yg[i][j] = r * sin( theta );
z[i][j] = r;
}
}
for ( i = 0; i < 10; i++ )
{
lev[i] = 0.05 + 0.10 * (double) i;
}
plcol0( 2 );
plcont( (const PLFLT * const *) z, RPTS, THETAPTS, 1, RPTS, 1, THETAPTS, lev, 10,
pltr2, (void *) &cgrid2 );
plcol0( 1 );
pllab( "", "", "Polar Contour Plot" );
plFree2dGrid( z, RPTS, THETAPTS );
plFree2dGrid( cgrid2.xg, RPTS, THETAPTS );
plFree2dGrid( cgrid2.yg, RPTS, THETAPTS );
}
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);
}
static void plplot_set_axis(plot_driver_type * driver , const plot_range_type * range , const char * timefmt , plot_color_type box_color , double tick_font_size) {
plplot_state_type * state = driver->state;
{
double xmin , xmax , ymin , ymax;
plot_range_get_limits( range , &xmin , &xmax , &ymin , &ymax);
if (state->logx) {
xmin = log( xmin );
xmax = log( xmax );
}
if (state->logy) {
ymin = log( ymin );
ymax = log( ymax );
}
plwind( xmin , xmax , ymin , ymax );
}
plcol0(box_color);
plschr(0, tick_font_size * PLOT_DEFAULT_LABEL_FONTSIZE);
if (timefmt != NULL) {
pltimefmt(timefmt);
state->plbox_xopt = util_realloc_sprintf( state->plbox_xopt , "%s%c" , state->plbox_xopt , 'd');
}
plbox(state->plbox_xopt, 0.0, 0, state->plbox_yopt , 0.0, 0);
}
void
plot1( void )
{
int i;
PLFLT xmin, xmax, ymin, ymax;
for ( i = 0; i < 60; i++ )
{
x[i] = xoff + xscale * ( i + 1 ) / 60.0;
y[i] = yoff + yscale * pow( x[i], 2. );
}
xmin = x[0];
xmax = x[59];
ymin = y[0];
ymax = y[59];
for ( i = 0; i < 6; i++ )
{
xs1[i] = x[i * 10 + 3];
ys1[i] = y[i * 10 + 3];
}
// Set up the viewport and window using PLENV. The range in X is
// 0.0 to 6.0, and the range in Y is 0.0 to 30.0. The axes are
// scaled separately (just = 0), and we just draw a labelled
// box (axis = 0).
plcol0( 1 );
plenv( xmin, xmax, ymin, ymax, 0, 0 );
plcol0( 6 );
pllab( "(x)", "(y)", "#frPLplot Example 1 - y=x#u2" );
// Plot the data points
plcol0( 9 );
plpoin( 6, xs1, ys1, 9 );
// Draw the line through the data
plcol0( 4 );
plline( 60, x, y );
}
static void
plot2( void )
{
PLFLT shade_min, shade_max, sh_color;
PLINT sh_cmap = 0, sh_width;
PLINT min_color = 0, min_width = 0, max_color = 0, max_width = 0;
int i;
static PLINT nlin[10] = { 1, 1, 1, 1, 1, 2, 2, 2, 2, 2 };
static PLINT inc[10][2] = { { 450, 0 }, { -450, 0 }, { 0, 0 }, { 900, 0 },
{ 300, 0 }, { 450, -450 }, { 0, 900 }, { 0, 450 },
{ 450, -450 }, { 0, 900 } };
static PLINT del[10][2] = { { 2000, 2000 }, { 2000, 2000 }, { 2000, 2000 },
{ 2000, 2000 }, { 2000, 2000 }, { 2000, 2000 },
{ 2000, 2000 }, { 2000, 2000 }, { 4000, 4000 },
{ 4000, 2000 } };
sh_width = 2;
pladv( 0 );
plvpor( 0.1, 0.9, 0.1, 0.9 );
plwind( -1.0, 1.0, -1.0, 1.0 );
/* Plot using identity transform */
for ( i = 0; i < 10; i++ )
{
shade_min = zmin + ( zmax - zmin ) * i / 10.0;
shade_max = zmin + ( zmax - zmin ) * ( i + 1 ) / 10.0;
sh_color = i + 6;
plpat( nlin[i], inc[i], del[i] );
plshade1( &z[0][0], XPTS, YPTS, NULL, -1., 1., -1., 1.,
shade_min, shade_max,
sh_cmap, sh_color, sh_width,
min_color, min_width, max_color, max_width,
plfill, 1, NULL, NULL );
}
plcol0( 1 );
plbox( "bcnst", 0.0, 0, "bcnstv", 0.0, 0 );
plcol0( 2 );
pllab( "distance", "altitude", "Bogon flux" );
}
void
plot3( void )
{
PLINT space0 = 0, mark0 = 0, space1 = 1500, mark1 = 1500;
int i;
// For the final graph we wish to override the default tick intervals, and
// so do not use plenv().
//
pladv( 0 );
// Use standard viewport, and define X range from 0 to 360 degrees, Y range
// from -1.2 to 1.2.
//
plvsta();
plwind( 0.0, 360.0, -1.2, 1.2 );
// Draw a box with ticks spaced 60 degrees apart in X, and 0.2 in Y.
plcol0( 1 );
plbox( "bcnst", 60.0, 2, "bcnstv", 0.2, 2 );
// Superimpose a dashed line grid, with 1.5 mm marks and spaces.
// plstyl expects a pointer!
//
plstyl( 1, &mark1, &space1 );
plcol0( 2 );
plbox( "g", 30.0, 0, "g", 0.2, 0 );
plstyl( 0, &mark0, &space0 );
plcol0( 3 );
pllab( "Angle (degrees)", "sine", "#frPLplot Example 1 - Sine function" );
for ( i = 0; i < 101; i++ )
{
x[i] = 3.6 * i;
y[i] = sin( x[i] * M_PI / 180.0 );
}
plcol0( 4 );
plline( 101, x, y );
}
static void
draw_boundary( PLINT slope, PLFLT *x, PLFLT *y )
{
int i;
if ( pen_col_min != 0 && pen_wd_min != 0 && min_points != 0 )
{
plcol0( pen_col_min );
plwidth( pen_wd_min );
if ( min_points == 4 && slope == 0 )
{
// swap points 1 and 3
i = min_pts[1];
min_pts[1] = min_pts[3];
min_pts[3] = i;
}
pljoin( x[min_pts[0]], y[min_pts[0]], x[min_pts[1]], y[min_pts[1]] );
if ( min_points == 4 )
{
pljoin( x[min_pts[2]], y[min_pts[2]], x[min_pts[3]],
y[min_pts[3]] );
}
}
if ( pen_col_max != 0 && pen_wd_max != 0 && max_points != 0 )
{
plcol0( pen_col_max );
plwidth( pen_wd_max );
if ( max_points == 4 && slope == 0 )
{
// swap points 1 and 3
i = max_pts[1];
max_pts[1] = max_pts[3];
max_pts[3] = i;
}
pljoin( x[max_pts[0]], y[max_pts[0]], x[max_pts[1]], y[max_pts[1]] );
if ( max_points == 4 )
{
pljoin( x[max_pts[2]], y[max_pts[2]], x[max_pts[3]],
y[max_pts[3]] );
}
}
}
void
plot3( void )
{
int i;
// For the final graph we wish to override the default tick intervals, and
// so do not use PLENV
pladv( 0 );
// Use standard viewport, and define X range from 0 to 360 degrees, Y range
// from -1.2 to 1.2.
plvsta();
plwind( (PLFLT) 0.0, (PLFLT) 360.0, (PLFLT) -1.2, (PLFLT) 1.2 );
// Draw a box with ticks spaced 60 degrees apart in X, and 0.2 in Y.
plcol0( 1 );
plbox( "bcnst", (PLFLT) 60.0, 2, "bcnstv", (PLFLT) 0.2, 2 );
// Superimpose a dashed line grid, with 1.5 mm marks and spaces. plstyl
// expects a pointer!!
plstyl( 1, &mark1, &space1 );
plcol0( 2 );
plbox( "g", (PLFLT) 30.0, 0, "g", (PLFLT) 0.2, 0 );
plstyl( 0, &mark0, &space0 );
plcol0( 3 );
pllab( "Angle (degrees)", "sine", "#frPLplot Example 1 - Sine function" );
for ( i = 0; i < 101; i++ )
{
x[i] = 3.6 * i;
y[i] = sin( x[i] * 3.141592654 / 180.0 );
}
plcol0( 4 );
plline( 101, x, y );
}
void plplot_text( plot_driver_type * driver , const plot_text_type * plot_text) {
double just = 0.0; // Left justified
plschr( 0.0 , plot_text_get_font_scale( plot_text ) );
plcol0( BLACK );
plptex( plot_text_get_x( plot_text ) ,
plot_text_get_y( plot_text ) ,
1 , 0 , just ,
plot_text_get_text( plot_text ));
plschr( 0.0 , 1.0 );
}
MZ_DLLEXPORT
void c_plshades( PLFLT **a, PLINT nx, PLINT ny, PLINT (*defined) (PLFLT, PLFLT),
PLFLT xmin, PLFLT xmax, PLFLT ymin, PLFLT ymax,
PLFLT *clevel, PLINT nlevel, PLINT fill_width,
PLINT cont_color, PLINT cont_width,
void (*fill) (PLINT, PLFLT *, PLFLT *), PLINT rectangular,
void (*pltr) (PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer),
PLPointer pltr_data )
{
PLFLT shade_min, shade_max, shade_color;
PLINT i, init_color, init_width;
for (i = 0; i < nlevel-1; i++) {
shade_min = clevel[i];
shade_max = clevel[i+1];
shade_color = i / (PLFLT) (nlevel-2);
/* The constants in order mean
* (1) color map1,
* (0, 0, 0, 0) all edge effects will be done with plcont rather
* than the normal plshade drawing which gets partially blocked
* when sequential shading is done as in the present case */
plshade(a, nx, ny, defined, xmin, xmax, ymin, ymax,
shade_min, shade_max,
1, shade_color, fill_width,
0, 0, 0, 0,
fill, rectangular, pltr, pltr_data);
}
if(cont_color > 0 && cont_width > 0) {
init_color = plsc->icol0;
init_width = plsc->width;
plcol0(cont_color);
plwid(cont_width);
plcont(a, nx, ny, 1, nx, 1, ny, clevel, nlevel, pltr, pltr_data);
plcol0(init_color);
plwid(init_width);
}
}
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 );
}
void
plot5(void)
{
int i, j;
PLFLT xx, yy;
PLFLT **z, **w;
static PLINT mark = 1500, space = 1500;
/* 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;
}
}
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);
plcol0(1);
pllab("X Coordinate", "Y Coordinate", "Streamlines of flow");
plflush();
/* Clean up */
plFree2dGrid(z, XPTS, YPTS);
plFree2dGrid(w, XPTS, YPTS);
}
void draw_page( PLINT mode, const char *title )
{
PLFLT xs[3], ys[3];
PLFLT over_x, over_y, over_r;
// A triangle for the background
xs[0] = 0.0;
xs[1] = 1.0;
xs[2] = 0.0;
ys[0] = 0.0;
ys[1] = 1.0;
ys[2] = 1.0;
// A circle for the foreground
over_x = 0.5;
over_y = 0.5;
over_r = 0.4;
plcol0( 1 );
// Setup a plot window
plenv( 0.0, 1.0, 0.0, 1.0, 1, 0 );
// Show which mode we're using
pllab( "", "", title );
// Draw a background triangle using the default drawing mode
plcol0( 2 );
plsdrawmode( PL_DRAWMODE_DEFAULT );
plfill( 3, xs, ys );
// Draw a circle in the given drawing mode
plcol0( 3 );
plsdrawmode( mode );
plarc( over_x, over_y, over_r, over_r, 0.0, 360.0, 0.0, 1 );
}
/* basic "plot one line" atom */
static void plotOneLine(
uint32_t numSamples,
PLFLT *fx,
LineDef *lineDef,
bool plotPoints, /* true: plot points */
bool plotLine) /* true: plot line */
{
/* set drawing color - set the value for color map 0[1], then set it */
const RGB *rgb = &plColors[lineDef->color];
plscol0(1, rgb->r, rgb->g, rgb->b);
plcol0(1);
if(plotPoints) {
plpoin(numSamples, fx, lineDef->fy, lineDef->pointCode);
}
if(plotLine) {
plline(numSamples, fx, lineDef->fy);
}
}
static void
plshade_int( PLFLT ( *f2eval )( PLINT, PLINT, PLPointer ),
PLPointer f2eval_data,
PLFLT ( * c2eval )( PLINT, PLINT, PLPointer ), // unused, but macro doesn't work
PLPointer PL_UNUSED( c2eval_data ),
PLINT ( *defined )( PLFLT, PLFLT ),
PLINT nx, PLINT ny,
PLFLT xmin, PLFLT xmax, PLFLT ymin, PLFLT ymax,
PLFLT shade_min, PLFLT shade_max,
PLINT sh_cmap, PLFLT sh_color, PLFLT sh_width,
PLINT min_color, PLFLT min_width,
PLINT max_color, PLFLT max_width,
void ( *fill )( PLINT, const PLFLT *, const PLFLT * ), PLINT rectangular,
void ( *pltr )( PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer ),
PLPointer pltr_data )
{
PLINT n, slope = 0, ix, iy;
int count, i, j, nxny;
PLFLT *a, *a0, *a1, dx, dy;
PLFLT x[8], y[8], xp[2], tx, ty, init_width;
int *c, *c0, *c1;
(void) c2eval; // Cast to void to silence compiler warning about unused parameter
if ( plsc->level < 3 )
{
plabort( "plfshade: window must be set up first" );
return;
}
if ( nx <= 0 || ny <= 0 )
{
plabort( "plfshade: nx and ny must be positive" );
return;
}
if ( shade_min >= shade_max )
{
plabort( "plfshade: shade_max must exceed shade_min" );
return;
}
if ( pltr == NULL && plsc->coordinate_transform == NULL )
rectangular = 1;
int_val = shade_max - shade_min;
init_width = plsc->width;
pen_col_min = min_color;
pen_col_max = max_color;
pen_wd_min = min_width;
pen_wd_max = max_width;
plstyl( (PLINT) 0, NULL, NULL );
plwidth( sh_width );
if ( fill != NULL )
{
switch ( sh_cmap )
{
case 0:
plcol0( (PLINT) sh_color );
break;
case 1:
plcol1( sh_color );
break;
default:
plabort( "plfshade: invalid color map selection" );
return;
}
}
// alloc space for value array, and initialize
// This is only a temporary kludge
nxny = nx * ny;
if ( ( a = (PLFLT *) malloc( (size_t) nxny * sizeof ( PLFLT ) ) ) == NULL )
{
plabort( "plfshade: unable to allocate memory for value array" );
return;
}
for ( ix = 0; ix < nx; ix++ )
for ( iy = 0; iy < ny; iy++ )
a[iy + ix * ny] = f2eval( ix, iy, f2eval_data );
// alloc space for condition codes
if ( ( c = (int *) malloc( (size_t) nxny * sizeof ( int ) ) ) == NULL )
{
plabort( "plfshade: unable to allocate memory for condition codes" );
free( a );
return;
}
sh_min = shade_min;
sh_max = shade_max;
set_cond( c, a, nxny );
dx = ( xmax - xmin ) / ( nx - 1 );
dy = ( ymax - ymin ) / ( ny - 1 );
a0 = a;
a1 = a + ny;
c0 = c;
c1 = c + ny;
for ( ix = 0; ix < nx - 1; ix++ )
{
for ( iy = 0; iy < ny - 1; iy++ )
{
count = c0[iy] + c0[iy + 1] + c1[iy] + c1[iy + 1];
// No filling needs to be done for these cases
if ( count >= UNDEF )
continue;
if ( count == 4 * POS )
continue;
if ( count == 4 * NEG )
continue;
// Entire rectangle can be filled
if ( count == 4 * OK )
{
// find biggest rectangle that fits
if ( rectangular )
{
big_recl( c0 + iy, ny, nx - ix, ny - iy, &i, &j );
}
else
{
i = j = 1;
}
x[0] = x[1] = ix;
x[2] = x[3] = ix + i;
y[0] = y[3] = iy;
y[1] = y[2] = iy + j;
if ( pltr )
{
for ( i = 0; i < 4; i++ )
{
( *pltr )( x[i], y[i], &tx, &ty, pltr_data );
x[i] = tx;
y[i] = ty;
}
}
else
{
for ( i = 0; i < 4; i++ )
{
x[i] = xmin + x[i] * dx;
y[i] = ymin + y[i] * dy;
}
}
if ( fill != NULL )
exfill( fill, defined, (PLINT) 4, x, y );
iy += j - 1;
continue;
}
// Only part of rectangle can be filled
n_point = min_points = max_points = 0;
n = find_interval( a0[iy], a0[iy + 1], c0[iy], c0[iy + 1], xp );
for ( j = 0; j < n; j++ )
{
x[j] = ix;
y[j] = iy + xp[j];
}
i = find_interval( a0[iy + 1], a1[iy + 1],
c0[iy + 1], c1[iy + 1], xp );
for ( j = 0; j < i; j++ )
{
x[j + n] = ix + xp[j];
y[j + n] = iy + 1;
}
n += i;
i = find_interval( a1[iy + 1], a1[iy], c1[iy + 1], c1[iy], xp );
for ( j = 0; j < i; j++ )
{
x[n + j] = ix + 1;
y[n + j] = iy + 1 - xp[j];
}
n += i;
i = find_interval( a1[iy], a0[iy], c1[iy], c0[iy], xp );
for ( j = 0; j < i; j++ )
{
x[n + j] = ix + 1 - xp[j];
y[n + j] = iy;
}
n += i;
if ( pltr )
{
for ( i = 0; i < n; i++ )
{
( *pltr )( x[i], y[i], &tx, &ty, pltr_data );
x[i] = tx;
y[i] = ty;
}
}
else
{
for ( i = 0; i < n; i++ )
{
x[i] = xmin + x[i] * dx;
y[i] = ymin + y[i] * dy;
}
}
if ( min_points == 4 )
slope = plctestez( a, nx, ny, ix, iy, shade_min );
if ( max_points == 4 )
slope = plctestez( a, nx, ny, ix, iy, shade_max );
// n = number of end of line segments
// min_points = number times shade_min meets edge
// max_points = number times shade_max meets edge
// special cases: check number of times a contour is in a box
switch ( ( min_points << 3 ) + max_points )
{
case 000:
case 020:
case 002:
case 022:
if ( fill != NULL && n > 0 )
exfill( fill, defined, n, x, y );
break;
case 040: // 2 contour lines in box
case 004:
if ( n != 6 )
fprintf( stderr, "plfshade err n=%d !6", (int) n );
if ( slope == 1 && c0[iy] == OK )
{
if ( fill != NULL )
exfill( fill, defined, n, x, y );
}
else if ( slope == 1 )
{
selected_polygon( fill, defined, x, y, 0, 1, 2, -1 );
selected_polygon( fill, defined, x, y, 3, 4, 5, -1 );
}
else if ( c0[iy + 1] == OK )
{
if ( fill != NULL )
exfill( fill, defined, n, x, y );
}
else
{
selected_polygon( fill, defined, x, y, 0, 1, 5, -1 );
selected_polygon( fill, defined, x, y, 2, 3, 4, -1 );
}
break;
case 044:
if ( n != 8 )
fprintf( stderr, "plfshade err n=%d !8", (int) n );
if ( slope == 1 )
{
selected_polygon( fill, defined, x, y, 0, 1, 2, 3 );
selected_polygon( fill, defined, x, y, 4, 5, 6, 7 );
}
else
{
selected_polygon( fill, defined, x, y, 0, 1, 6, 7 );
selected_polygon( fill, defined, x, y, 2, 3, 4, 5 );
}
break;
case 024:
case 042:
// 3 contours
if ( n != 7 )
fprintf( stderr, "plfshade err n=%d !7", (int) n );
if ( ( c0[iy] == OK || c1[iy + 1] == OK ) && slope == 1 )
{
if ( fill != NULL )
exfill( fill, defined, n, x, y );
}
else if ( ( c0[iy + 1] == OK || c1[iy] == OK ) && slope == 0 )
{
if ( fill != NULL )
exfill( fill, defined, n, x, y );
}
else if ( c0[iy] == OK )
{
selected_polygon( fill, defined, x, y, 0, 1, 6, -1 );
selected_polygon( fill, defined, x, y, 2, 3, 4, 5 );
}
else if ( c0[iy + 1] == OK )
{
selected_polygon( fill, defined, x, y, 0, 1, 2, -1 );
selected_polygon( fill, defined, x, y, 3, 4, 5, 6 );
}
else if ( c1[iy + 1] == OK )
{
selected_polygon( fill, defined, x, y, 0, 1, 5, 6 );
selected_polygon( fill, defined, x, y, 2, 3, 4, -1 );
}
else if ( c1[iy] == OK )
{
selected_polygon( fill, defined, x, y, 0, 1, 2, 3 );
selected_polygon( fill, defined, x, y, 4, 5, 6, -1 );
}
else
{
fprintf( stderr, "plfshade err logic case 024:042\n" );
}
break;
default:
fprintf( stderr, "prog err switch\n" );
break;
}
draw_boundary( slope, x, y );
if ( fill != NULL )
{
plwidth( sh_width );
if ( sh_cmap == 0 )
plcol0( (PLINT) sh_color );
else if ( sh_cmap == 1 )
plcol1( sh_color );
}
}
a0 = a1;
c0 = c1;
a1 += ny;
c1 += ny;
}
free( c );
free( a );
plwidth( init_width );
}
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 );
}
static void potential( void )
//shielded potential contour plot example.
{
int i, j;
PLcGrid2 cgrid2;
PLFLT rmax, xmin, xmax, x0, ymin, ymax, y0, zmin, zmax;
PLFLT peps, xpmin, xpmax, ypmin, ypmax;
PLFLT eps, q1, d1, q1i, d1i, q2, d2, q2i, d2i;
PLFLT div1, div1i, div2, div2i;
PLFLT **z;
PLINT nlevelneg, nlevelpos;
PLFLT dz, clevel2, clevelneg[PNLEVEL], clevelpos[PNLEVEL];
PLINT ncollin, ncolbox, ncollab;
PLFLT px[PPERIMETERPTS], py[PPERIMETERPTS];
PLFLT t, r, theta;
//create data to be contoured.
plAlloc2dGrid( &cgrid2.xg, PRPTS, PTHETAPTS );
plAlloc2dGrid( &cgrid2.yg, PRPTS, PTHETAPTS );
plAlloc2dGrid( &z, PRPTS, PTHETAPTS );
cgrid2.nx = PRPTS;
cgrid2.ny = PTHETAPTS;
for ( i = 0; i < PRPTS; i++ )
{
r = 0.5 + (double) i;
for ( j = 0; j < PTHETAPTS; j++ )
{
theta = ( 2. * M_PI / (double) ( PTHETAPTS - 1 ) ) * ( 0.5 + (double) j );
cgrid2.xg[i][j] = r * cos( theta );
cgrid2.yg[i][j] = r * sin( theta );
}
}
rmax = r;
f2mnmx( cgrid2.xg, PRPTS, PTHETAPTS, &xmin, &xmax );
f2mnmx( cgrid2.yg, PRPTS, PTHETAPTS, &ymin, &ymax );
x0 = ( xmin + xmax ) / 2.;
y0 = ( ymin + ymax ) / 2.;
// Expanded limits
peps = 0.05;
xpmin = xmin - fabs( xmin ) * peps;
xpmax = xmax + fabs( xmax ) * peps;
ypmin = ymin - fabs( ymin ) * peps;
ypmax = ymax + fabs( ymax ) * peps;
// Potential inside a conducting cylinder (or sphere) by method of images.
// Charge 1 is placed at (d1, d1), with image charge at (d2, d2).
// Charge 2 is placed at (d1, -d1), with image charge at (d2, -d2).
// Also put in smoothing term at small distances.
//
eps = 2.;
q1 = 1.;
d1 = rmax / 4.;
q1i = -q1 * rmax / d1;
d1i = pow( rmax, 2. ) / d1;
q2 = -1.;
d2 = rmax / 4.;
q2i = -q2 * rmax / d2;
d2i = pow( rmax, 2. ) / d2;
for ( i = 0; i < PRPTS; i++ )
{
for ( j = 0; j < PTHETAPTS; j++ )
{
div1 = sqrt( pow( cgrid2.xg[i][j] - d1, 2. ) + pow( cgrid2.yg[i][j] - d1, 2. ) + pow( eps, 2. ) );
div1i = sqrt( pow( cgrid2.xg[i][j] - d1i, 2. ) + pow( cgrid2.yg[i][j] - d1i, 2. ) + pow( eps, 2. ) );
div2 = sqrt( pow( cgrid2.xg[i][j] - d2, 2. ) + pow( cgrid2.yg[i][j] + d2, 2. ) + pow( eps, 2. ) );
div2i = sqrt( pow( cgrid2.xg[i][j] - d2i, 2. ) + pow( cgrid2.yg[i][j] + d2i, 2. ) + pow( eps, 2. ) );
z[i][j] = q1 / div1 + q1i / div1i + q2 / div2 + q2i / div2i;
}
}
f2mnmx( z, PRPTS, PTHETAPTS, &zmin, &zmax );
// printf("%.15g %.15g %.15g %.15g %.15g %.15g %.15g %.15g \n",
// q1, d1, q1i, d1i, q2, d2, q2i, d2i);
// printf("%.15g %.15g %.15g %.15g %.15g %.15g \n",
// xmin, xmax, ymin, ymax, zmin, zmax);
// Positive and negative contour levels.
dz = ( zmax - zmin ) / (double) PNLEVEL;
nlevelneg = 0;
nlevelpos = 0;
for ( i = 0; i < PNLEVEL; i++ )
{
clevel2 = zmin + ( (double) i + 0.5 ) * dz;
if ( clevel2 <= 0. )
clevelneg[nlevelneg++] = clevel2;
else
clevelpos[nlevelpos++] = clevel2;
}
// Colours!
ncollin = 11;
ncolbox = 1;
ncollab = 2;
// Finally start plotting this page!
pladv( 0 );
plcol0( ncolbox );
plvpas( 0.1, 0.9, 0.1, 0.9, 1.0 );
plwind( xpmin, xpmax, ypmin, ypmax );
plbox( "", 0., 0, "", 0., 0 );
plcol0( ncollin );
if ( nlevelneg > 0 )
{
// Negative contours
pllsty( 2 );
plcont( (const PLFLT * const *) z, PRPTS, PTHETAPTS, 1, PRPTS, 1, PTHETAPTS,
clevelneg, nlevelneg, pltr2, (void *) &cgrid2 );
}
if ( nlevelpos > 0 )
{
// Positive contours
pllsty( 1 );
plcont( (const PLFLT * const *) z, PRPTS, PTHETAPTS, 1, PRPTS, 1, PTHETAPTS,
clevelpos, nlevelpos, pltr2, (void *) &cgrid2 );
}
// Draw outer boundary
for ( i = 0; i < PPERIMETERPTS; i++ )
{
t = ( 2. * M_PI / ( PPERIMETERPTS - 1 ) ) * (double) i;
px[i] = x0 + rmax * cos( t );
py[i] = y0 + rmax * sin( t );
}
plcol0( ncolbox );
plline( PPERIMETERPTS, px, py );
plcol0( ncollab );
pllab( "", "", "Shielded potential of charges in a conducting sphere" );
plFree2dGrid( z, PRPTS, PTHETAPTS );
plFree2dGrid( cgrid2.xg, PRPTS, PTHETAPTS );
plFree2dGrid( cgrid2.yg, PRPTS, PTHETAPTS );
}
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;
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 );
}
void
plot1( int do_test )
{
int i;
PLFLT xmin, xmax, ymin, ymax;
for ( i = 0; i < 60; i++ )
{
x[i] = xoff + xscale * ( i + 1 ) / 60.0;
y[i] = yoff + yscale * pow( x[i], 2. );
}
xmin = x[0];
xmax = x[59];
ymin = y[0];
ymax = y[59];
for ( i = 0; i < 6; i++ )
{
xs[i] = x[i * 10 + 3];
ys[i] = y[i * 10 + 3];
}
// Set up the viewport and window using PLENV. The range in X is
// 0.0 to 6.0, and the range in Y is 0.0 to 30.0. The axes are
// scaled separately (just = 0), and we just draw a labelled
// box (axis = 0).
//
plcol0( 1 );
plenv( xmin, xmax, ymin, ymax, 0, 0 );
plcol0( 2 );
pllab( "(x)", "(y)", "#frPLplot Example 1 - y=x#u2" );
// Plot the data points
plcol0( 4 );
plpoin( 6, xs, ys, 9 );
// Draw the line through the data
plcol0( 3 );
plline( 60, x, y );
// xor mode enable erasing a line/point/text by replotting it again
// it does not work in double buffering mode, however
if ( do_test && test_xor )
{
#ifdef PL_HAVE_NANOSLEEP
PLINT st;
struct timespec ts;
ts.tv_sec = 0;
ts.tv_nsec = 50000000;
plxormod( 1, &st ); // enter xor mode
if ( st )
{
for ( i = 0; i < 60; i++ )
{
plpoin( 1, x + i, y + i, 9 ); // draw a point
nanosleep( &ts, NULL ); // wait a little
plflush(); // force an update of the tk driver
plpoin( 1, x + i, y + i, 9 ); // erase point
}
plxormod( 0, &st ); // leave xor mode
}
#else
printf( "The -xor command line option can only be exercised if your "
"system\nhas nanosleep(), which does not seem to happen.\n" );
#endif
}
}
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);
}
