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plot2d.c
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2906 lines (2546 loc) · 91.9 KB
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#ifndef lint
static char *RCSid() { return RCSid("$Id: plot2d.c,v 1.250 2011/09/23 16:34:29 sfeam Exp $"); }
#endif
/* GNUPLOT - plot2d.c */
/*[
* Copyright 1986 - 1993, 1998, 2004 Thomas Williams, Colin Kelley
*
* Permission to use, copy, and distribute this software and its
* documentation for any purpose with or without fee is hereby granted,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation.
*
* Permission to modify the software is granted, but not the right to
* distribute the complete modified source code. Modifications are to
* be distributed as patches to the released version. Permission to
* distribute binaries produced by compiling modified sources is granted,
* provided you
* 1. distribute the corresponding source modifications from the
* released version in the form of a patch file along with the binaries,
* 2. add special version identification to distinguish your version
* in addition to the base release version number,
* 3. provide your name and address as the primary contact for the
* support of your modified version, and
* 4. retain our contact information in regard to use of the base
* software.
* Permission to distribute the released version of the source code along
* with corresponding source modifications in the form of a patch file is
* granted with same provisions 2 through 4 for binary distributions.
*
* This software is provided "as is" without express or implied warranty
* to the extent permitted by applicable law.
]*/
#include "gp_types.h"
#include "plot2d.h"
#include "alloc.h"
#include "axis.h"
#include "binary.h"
#include "command.h"
#include "datafile.h"
#include "eval.h"
#include "fit.h"
#include "graphics.h"
#include "interpol.h"
#include "misc.h"
#include "parse.h"
#include "setshow.h"
#include "tables.h"
#include "tabulate.h"
#include "term_api.h"
#include "util.h"
#include "variable.h" /* For locale handling */
#ifndef _Windows
# include "help.h"
#endif
/* minimum size of points[] in curve_points */
#define MIN_CRV_POINTS 100
/* static prototypes */
static struct curve_points * cp_alloc __PROTO((int num));
static int get_data __PROTO((struct curve_points *));
static void store2d_point __PROTO((struct curve_points *, int i, double x, double y, double xlow, double xhigh, double ylow, double yhigh, double width));
static void eval_plots __PROTO((void));
static void parametric_fixup __PROTO((struct curve_points * start_plot, int *plot_num));
static void box_range_fiddling __PROTO((struct curve_points *plot));
static void boxplot_range_fiddling __PROTO((struct curve_points *plot));
static void histogram_range_fiddling __PROTO((struct curve_points *plot));
/* internal and external variables */
/* the curves/surfaces of the plot */
struct curve_points *first_plot = NULL;
static struct udft_entry plot_func;
/* box width (automatic) */
double boxwidth = -1.0;
/* whether box width is absolute (default) or relative */
TBOOLEAN boxwidth_is_absolute = TRUE;
static double histogram_rightmost = 0.0; /* Highest x-coord of histogram so far */
static char *histogram_title = NULL; /* Subtitle for this histogram */
static struct coordinate GPHUGE *stackheight = NULL; /* Scratch space for y autoscale */
static int stack_count = 0; /* counter for stackheight */
/* function implementations */
/* HBB 20000508: moved cp_alloc() &friends to the main module using them, and
* made cp_alloc 'static'.
*/
/*
* cp_alloc() allocates a curve_points structure that can hold 'num'
* points. Initialize all fields to NULL.
*/
static struct curve_points *
cp_alloc(int num)
{
struct curve_points *cp;
struct lp_style_type default_lp_properties = DEFAULT_LP_STYLE_TYPE;
cp = (struct curve_points *) gp_alloc(sizeof(struct curve_points), "curve");
memset(cp,0,sizeof(struct curve_points));
cp->p_max = (num >= 0 ? num : 0);
if (num > 0)
cp->points = (struct coordinate GPHUGE *)
gp_alloc(num * sizeof(struct coordinate), "curve points");
/* Initialize various fields */
cp->lp_properties = default_lp_properties;
default_arrow_style(&(cp->arrow_properties));
cp->fill_properties = default_fillstyle;
return (cp);
}
/*
* cp_extend() reallocates a curve_points structure to hold "num"
* points. This will either expand or shrink the storage.
*/
void
cp_extend(struct curve_points *cp, int num)
{
if (num == cp->p_max)
return;
if (num > 0) {
if (cp->points == NULL) {
cp->points = gp_alloc(num * sizeof(cp->points[0]),
"curve points");
} else {
cp->points = gp_realloc(cp->points, num * sizeof(cp->points[0]),
"expanding curve points");
if (cp->varcolor)
cp->varcolor = gp_realloc(cp->varcolor, num * sizeof(double),
"expanding curve variable colors");
}
cp->p_max = num;
} else {
free(cp->points);
cp->points = NULL;
cp->p_max = 0;
free(cp->varcolor);
cp->varcolor = NULL;
}
}
/*
* cp_free() releases any memory which was previously malloc()'d to hold
* curve points (and recursively down the linked list).
*/
/* HBB 20000506: instead of risking stack havoc by recursion, operate
* iteratively */
void
cp_free(struct curve_points *cp)
{
while (cp) {
struct curve_points *next = cp->next;
free(cp->title);
cp->title = NULL;
free(cp->points);
cp->points = NULL;
free(cp->varcolor);
cp->varcolor = NULL;
if (cp->labels)
free_labels(cp->labels);
cp->labels = NULL;
free(cp);
cp = next;
}
}
/*
* In the parametric case we can say plot [a= -4:4] [-2:2] [-1:1] sin(a),a**2
* while in the non-parametric case we would say only plot [b= -2:2] [-1:1]
* sin(b)
*/
void
plotrequest()
{
int dummy_token = -1;
int t_axis;
if (!term) /* unknown */
int_error(c_token, "use 'set term' to set terminal type first");
is_3d_plot = FALSE;
/* Deactivate if 'set view map' is still running after the previous 'splot': */
splot_map_deactivate();
if (parametric && strcmp(set_dummy_var[0], "u") == 0)
strcpy(set_dummy_var[0], "t");
/* initialise the arrays from the 'set' scalars */
AXIS_INIT2D(FIRST_X_AXIS, 0);
AXIS_INIT2D(FIRST_Y_AXIS, 1);
AXIS_INIT2D(SECOND_X_AXIS, 0);
AXIS_INIT2D(SECOND_Y_AXIS, 1);
AXIS_INIT2D(T_AXIS, 0);
AXIS_INIT2D(POLAR_AXIS, 1);
AXIS_INIT2D(COLOR_AXIS, 1);
t_axis = (parametric || polar) ? T_AXIS : FIRST_X_AXIS;
PARSE_NAMED_RANGE(t_axis, dummy_token);
if (parametric || polar) /* set optional x ranges */
PARSE_RANGE(FIRST_X_AXIS);
/* possible reversal of x range *does* matter, even in parametric
* or polar mode */
CHECK_REVERSE(FIRST_X_AXIS);
PARSE_RANGE(FIRST_Y_AXIS);
CHECK_REVERSE(FIRST_Y_AXIS);
PARSE_RANGE(SECOND_X_AXIS);
CHECK_REVERSE(SECOND_X_AXIS);
PARSE_RANGE(SECOND_Y_AXIS);
CHECK_REVERSE(SECOND_Y_AXIS);
/* Clear out any tick labels read from data files in previous plot */
for (t_axis=0; t_axis<AXIS_ARRAY_SIZE; t_axis++) {
struct ticdef *ticdef = &axis_array[t_axis].ticdef;
if (ticdef->def.user)
ticdef->def.user = prune_dataticks(ticdef->def.user);
if (!ticdef->def.user && ticdef->type == TIC_USER)
ticdef->type = TIC_COMPUTED;
}
/* use the default dummy variable unless changed */
if (dummy_token >= 0)
copy_str(c_dummy_var[0], dummy_token, MAX_ID_LEN);
else
(void) strcpy(c_dummy_var[0], set_dummy_var[0]);
eval_plots();
}
#ifdef VOLATILE_REFRESH
/* Helper function for refresh command. Reexamine each data point and update the
* flags for INRANGE/OUTRANGE/UNDEFINED based on the current limits for that axis.
* Normally the axis limits are already known at this point. But if the user has
* forced "set autoscale" since the previous plot or refresh, we need to reset the
* axis limits and try to approximate the full auto-scaling behaviour.
*/
void
refresh_bounds(struct curve_points *first_plot, int nplots)
{
struct curve_points *this_plot = first_plot;
int iplot; /* plot index */
for (iplot = 0; iplot < nplots; iplot++, this_plot = this_plot->next) {
int i; /* point index */
struct axis *x_axis = &axis_array[this_plot->x_axis];
struct axis *y_axis = &axis_array[this_plot->y_axis];
/* IMAGE clipping is done elsewhere, so we don't need INRANGE/OUTRANGE
* checks.
*/
if (this_plot->plot_style == IMAGE || this_plot->plot_style == RGBIMAGE) {
if (x_axis->set_autoscale)
plot_image_or_update_axes(this_plot,TRUE);
continue;
}
for (i=0; i<this_plot->p_count; i++) {
struct coordinate GPHUGE *point = &this_plot->points[i];
if (point->type == UNDEFINED)
continue;
else
point->type = INRANGE;
/* If the state has been set to autoscale since the last plot,
* mark everything INRANGE and re-evaluate the axis limits now.
* Otherwise test INRANGE/OUTRANGE against previous axis limits.
*/
if (!this_plot->noautoscale
&& (x_axis->set_autoscale & (AUTOSCALE_MIN|AUTOSCALE_MAX))) {
if (point->x > x_axis->max) x_axis->max = point->x;
if (point->x < x_axis->min) x_axis->min = point->x;
} else if (!inrange(point->x, x_axis->min, x_axis->max)) {
point->type = OUTRANGE;
continue;
}
if (!this_plot->noautoscale
&& (y_axis->set_autoscale & (AUTOSCALE_MIN|AUTOSCALE_MAX))) {
if (point->y > y_axis->max) y_axis->max = point->y;
if (point->y < y_axis->min) y_axis->min = point->y;
} else if (!inrange(point->y, y_axis->min, y_axis->max)) {
point->type = OUTRANGE;
continue;
}
}
}
}
#endif
/* A quick note about boxes style. For boxwidth auto, we cannot
* calculate widths yet, since it may be sorted, etc. But if
* width is set, we must do it now, before logs of xmin/xmax
* are taken.
* We store -1 in point->z as a marker to mean width needs to be
* calculated, or 0 to mean that xmin/xmax are set correctly
*/
/* current_plot->token is after datafile spec, for error reporting
* it will later be moved passed title/with/linetype/pointtype
*/
static int
get_data(struct curve_points *current_plot)
{
int i /* num. points ! */ , j;
int ngood;
int max_cols, min_cols; /* allowed range of column numbers */
double v[MAXDATACOLS];
int storetoken = current_plot->token;
struct coordinate GPHUGE *cp;
if (current_plot->varcolor == NULL) {
TBOOLEAN variable_color = FALSE;
if ((current_plot->lp_properties.pm3d_color.type == TC_RGB)
&& (current_plot->lp_properties.pm3d_color.value < 0))
variable_color = TRUE;
if (current_plot->lp_properties.pm3d_color.type == TC_Z)
variable_color = TRUE;
if (current_plot->lp_properties.l_type == LT_COLORFROMCOLUMN)
variable_color = TRUE;
if (current_plot->plot_smooth != SMOOTH_NONE) {
/* FIXME: It would be possible to support smooth cspline lc palette */
/* but it would require expanding and interpolating plot->varcolor */
/* in parallel with the y values. */
variable_color = FALSE;
}
if (variable_color)
current_plot->varcolor = gp_alloc(current_plot->p_max * sizeof(double),
"varcolor array");
}
/* eval_plots has already opened file */
/* HBB 2000504: For most 2D plot styles the 'z' coordinate is unused.
* Set it to NO_AXIS to account for that. For styles that use
* the z coordinate as a real coordinate (i.e. not a width or
* 'delta' component, change the setting inside the switch: */
current_plot->z_axis = NO_AXIS;
/* HBB NEW 20060427: if there's only one, explicit using column,
* it's y data. df_axis[] has to reflect that, so df_readline()
* will expect time/date input. */
if (df_no_use_specs == 1)
df_axis[0] = df_axis[1];
switch (current_plot->plot_style) { /* set maximum columns to scan */
case XYERRORLINES:
case XYERRORBARS:
case BOXXYERROR:
min_cols = 4;
max_cols = 7;
if (df_no_use_specs >= 6) {
/* HBB 20060427: signal 3rd and 4th column are absolute x
* data --- needed so time/date parsing works */
df_axis[2] = df_axis[3] = df_axis[0];
/* and 5th and 6th are absolute y data */
df_axis[4] = df_axis[5] = df_axis[1];
}
break;
case FINANCEBARS:
/* HBB 20000504: use 'z' coordinate for y-axis quantity */
current_plot->z_axis = current_plot->y_axis;
min_cols = 5;
max_cols = 6;
/* HBB 20060427: signal 3rd and 4th column are absolute y data
* --- needed so time/date parsing works */
df_axis[2] = df_axis[3] = df_axis[4] = df_axis[1];
break;
case BOXPLOT:
min_cols = 2; /* fixed x, lots of y data points */
max_cols = 3; /* and an optional width */
break;
case CANDLESTICKS:
current_plot->z_axis = current_plot->y_axis;
min_cols = 5;
max_cols = 7;
df_axis[2] = df_axis[3] = df_axis[4] = df_axis[1];
break;
case BOXERROR:
min_cols = 3;
max_cols = 6;
/* There are four possible cases: */
/* 3 cols --> (x,y,dy), auto dx */
/* 4 cols, boxwidth==-2 --> (x,y,ylow,yhigh), auto dx */
/* 4 cols, boxwidth!=-2 --> (x,y,dy,dx) */
/* 5 cols --> (x,y,ylow,yhigh,dx) */
/* In each case an additional column may hold variable color */
if ((df_no_use_specs == 4 && boxwidth == -2)
|| df_no_use_specs >= 5)
/* HBB 20060427: signal 3rd and 4th column are absolute y
* data --- needed so time/date parsing works */
df_axis[2] = df_axis[3] = df_axis[1];
break;
case VECTOR: /* x, y, dx, dy, variable color or arrow style */
min_cols = 4;
max_cols = 5;
break;
case XERRORLINES:
case XERRORBARS:
min_cols = 3;
max_cols = 5;
if (df_no_use_specs >= 4)
/* HBB 20060427: signal 3rd and 4th column are absolute x
* data --- needed so time/date parsing works */
df_axis[2] = df_axis[3] = df_axis[0];
break;
case YERRORLINES:
case YERRORBARS:
min_cols = 3;
max_cols = 5;
if (df_no_use_specs >= 4)
/* HBB 20060427: signal 3rd and 4th column are absolute y
* data --- needed so time/date parsing works */
df_axis[2] = df_axis[3] = df_axis[1];
break;
case HISTOGRAMS:
min_cols = 1;
max_cols = 3;
break;
case BOXES:
min_cols = 1;
max_cols = 4;
break;
case FILLEDCURVES:
min_cols = 1;
max_cols = 3;
df_axis[2] = df_axis[1]; /* Both curves use same y axis */
break;
case IMPULSES: /* 2 + possible variable color */
case LINES:
case DOTS:
min_cols = 1;
max_cols = 3;
break;
case LABELPOINTS:
/* 3 column data: X Y Label */
/* 4th column allows rgb variable */
min_cols = 3;
max_cols = 4;
expect_string( 3 );
break;
case IMAGE:
min_cols = 3;
max_cols = 3;
break;
case RGBIMAGE:
min_cols = 5;
max_cols = 6;
break;
case RGBA_IMAGE:
min_cols = 6;
max_cols = 6;
break;
#ifdef EAM_OBJECTS
case CIRCLES: /* 3 + possible variable color, or 5 + possible variable color */
min_cols = 2;
max_cols = 6;
break;
case ELLIPSES:
min_cols = 2; /* x, y, major axis, minor axis */
max_cols = 6; /* + optional angle, possible variable color */
break;
#endif
case POINTSTYLE:
case LINESPOINTS:
/* Allow 3rd column because of 'pointsize variable' */
/* Allow 4th column because of 'lc rgb variable' */
min_cols = 1;
max_cols = 4;
break;
default:
min_cols = 1;
max_cols = 2;
break;
}
if (current_plot->plot_smooth == SMOOTH_ACSPLINES) {
max_cols = 3;
current_plot->z_axis = FIRST_Z_AXIS;
df_axis[2] = FIRST_Z_AXIS;
}
if (df_no_use_specs > max_cols)
int_error(NO_CARET, "Too many using specs for this style");
if (df_no_use_specs > 0 && df_no_use_specs < min_cols)
int_error(NO_CARET, "Not enough columns for this style");
i = 0; ngood = 0;
/* If the user has set an explicit locale for numeric input, apply it */
/* here so that it affects data fields read from the input file. */
set_numeric_locale();
while ((j = df_readline(v, max_cols)) != DF_EOF) {
/* j <= max_cols */
if (i >= current_plot->p_max) {
/* overflow about to occur. Extend size of points[]
* array. Double the size, and add 1000 points, to avoid
* needlessly small steps. */
cp_extend(current_plot, i + i + 1000);
}
if (j > 0) {
ngood++;
/* June 2010 - New mechanism for variable color */
/* If variable color is requested, take the color value from the */
/* final column of input and decrement the column count by one. */
if (current_plot->varcolor) {
static char *errmsg = "Not enough columns for variable color";
switch (current_plot->plot_style) {
case CANDLESTICKS:
case FINANCEBARS:
if (j < 6) int_error(NO_CARET,errmsg);
break;
case XYERRORLINES:
case XYERRORBARS:
case BOXXYERROR:
if (j != 7 && j != 5) int_error(NO_CARET,errmsg);
break;
case VECTOR:
if (j < 5) int_error(NO_CARET,errmsg);
break;
case LABELPOINTS:
case BOXERROR:
case XERRORLINES:
case XERRORBARS:
case YERRORLINES:
case YERRORBARS:
if (j < 4) int_error(NO_CARET,errmsg);
break;
#ifdef EAM_OBJECTS
case CIRCLES:
if (j == 5 || j < 3) int_error(NO_CARET,errmsg);
break;
case ELLIPSES:
#endif
case BOXES:
case POINTSTYLE:
case LINESPOINTS:
case IMPULSES:
case LINES:
case DOTS:
if (j < 3) int_error(NO_CARET,errmsg);
break;
default:
break;
}
current_plot->varcolor[i] = v[--j];
}
}
switch (j) {
default:
{
df_close();
int_error(c_token, "internal error : df_readline returned %d : datafile line %d", j, df_line_number);
}
case DF_MISSING:
/* Plot type specific handling of missing points goes here. */
if (current_plot->plot_style == HISTOGRAMS) {
current_plot->points[i].type = UNDEFINED;
i++;
continue;
}
/* Jun 2006 - Return to behavior of 3.7 and current docs:
* do not interrupt plotted line because of missing data
*/
FPRINTF((stderr,"Missing datum %d\n", i));
continue;
case DF_UNDEFINED:
/* NaN or bad result from extended using expression */
current_plot->points[i].type = UNDEFINED;
i++;
continue;
case DF_FIRST_BLANK:
/* The binary input routines generate DF_FIRST_BLANK at the end
* of scan lines, so that the data may be used for the isometric
* splots. Rather than turning that off inside the binary
* reading routine based upon the plot mode, DF_FIRST_BLANK is
* ignored for certain plot types requiring 3D coordinates in
* MODE_PLOT.
*/
if (current_plot->plot_style == IMAGE
|| current_plot->plot_style == RGBIMAGE
|| current_plot->plot_style == RGBA_IMAGE)
continue;
/* break in data, make next point undefined */
/* FIXME: We really should distinguish between a blank */
/* line and an undefined value on a non-blank line. */
current_plot->points[i].type = UNDEFINED;
i++;
continue;
case DF_SECOND_BLANK:
/* second blank line. We dont do anything
* (we did everything when we got FIRST one)
*/
continue;
case DF_FOUND_KEY_TITLE:
df_set_key_title(current_plot);
continue;
case DF_KEY_TITLE_MISSING:
fprintf(stderr,"get_data: key title not found in requested column\n");
continue;
case DF_COLUMN_HEADERS:
continue;
case 0: /* not blank line, but df_readline couldn't parse it */
{
df_close();
int_error(current_plot->token,
"Bad data on line %d", df_line_number);
}
case 1:
{ /* only one number */
/* x is index, assign number to y */
v[1] = v[0];
v[0] = df_datum;
/* nobreak */
}
case 2:
H_ERR_BARS:
if (current_plot->plot_style == HISTOGRAMS) {
if (histogram_opts.type == HT_ERRORBARS) {
/* The code is a tangle, but we can get here with j = 1, 2, or 3 */
if (j == 1)
int_error(c_token, "Not enough columns in using specification");
else if (j == 2) {
v[3] = v[0] + v[1];
v[2] = v[0] - v[1];
} else {
v[3] = v[2];
v[2] = v[1];
}
v[1] = v[0];
v[0] = df_datum;
} else if (j >= 2)
int_error(c_token, "Too many columns in using specification");
else
v[2] = v[3] = v[1];
if (histogram_opts.type == HT_STACKED_IN_TOWERS) {
histogram_rightmost = current_plot->histogram_sequence
+ current_plot->histogram->start;
current_plot->histogram->end = histogram_rightmost;
} else if (v[0] + current_plot->histogram->start > histogram_rightmost) {
histogram_rightmost = v[0] + current_plot->histogram->start;
current_plot->histogram->end = histogram_rightmost;
}
/* Histogram boxwidths are always absolute */
if (boxwidth > 0)
store2d_point(current_plot, i++, v[0], v[1],
v[0] - boxwidth / 2, v[0] + boxwidth / 2,
v[2], v[3], 0.0);
else
store2d_point(current_plot, i++, v[0], v[1],
v[0] - 0.5, v[0] + 0.5,
v[2], v[3], 0.0);
/* x, y */
/* ylow and yhigh are same as y */
} else if ( (current_plot->plot_style == BOXES)
&& boxwidth > 0 && boxwidth_is_absolute) {
/* calculate width now */
if (axis_array[current_plot->x_axis].log) {
double base = axis_array[current_plot->x_axis].base;
store2d_point(current_plot, i++, v[0], v[1],
v[0] * pow(base, -boxwidth/2.), v[0] * pow(base, boxwidth/2.),
v[1], v[1], 0.0);
} else
store2d_point(current_plot, i++, v[0], v[1],
v[0] - boxwidth / 2, v[0] + boxwidth / 2,
v[1], v[1], 0.0);
#ifdef EAM_OBJECTS
} else if (current_plot->plot_style == CIRCLES) {
/* x, y, default radius, full circle */
store2d_point(current_plot, i++, v[0], v[1], v[0], v[0],
0., 360., DEFAULT_RADIUS);
} else if (current_plot->plot_style == ELLIPSES) {
/* x, y, major axis = minor axis = default, default orientation */
store2d_point(current_plot, i++, v[0], v[1], 0.0, 0.0,
0.0, 0.0, DEFAULT_ELLIPSE);
#endif
} else {
if (current_plot->plot_style == CANDLESTICKS
|| current_plot->plot_style == FINANCEBARS) {
int_warn(storetoken, "This plot style does not work with 1 or 2 cols. Setting to points");
current_plot->plot_style = POINTSTYLE;
}
/* xlow and xhigh are same as x */
/* auto width if boxes, else ignored */
store2d_point(current_plot, i++, v[0], v[1], v[0], v[0], v[1],
v[1], -1.0);
}
break;
case 3:
/* x, y, ydelta OR x, y, xdelta OR x, y, width */
if (current_plot->plot_smooth == SMOOTH_ACSPLINES)
store2d_point(current_plot, i++, v[0], v[1], v[0], v[0], v[1],
v[1], v[2]);
else
switch (current_plot->plot_style) {
case HISTOGRAMS:
if (histogram_opts.type == HT_ERRORBARS)
goto H_ERR_BARS;
else
/* fall through */
default:
int_warn(storetoken, "This plot style does not work with 3 cols. Setting to yerrorbars");
current_plot->plot_style = YERRORBARS;
/* fall through */
case FILLEDCURVES:
current_plot->filledcurves_options.closeto = FILLEDCURVES_BETWEEN;
store2d_point(current_plot, i++, v[0], v[1], v[0], v[0],
v[1], v[2], -1.0);
break;
case YERRORLINES:
case YERRORBARS:
case BOXERROR: /* x, y, dy */
/* auto width if boxes, else ignored */
store2d_point(current_plot, i++, v[0], v[1], v[0], v[0],
v[1] - v[2], v[1] + v[2], -1.0);
break;
case XERRORLINES:
case XERRORBARS:
store2d_point(current_plot, i++, v[0], v[1], v[0] - v[2],
v[0] + v[2], v[1], v[1], 0.0);
break;
case BOXES:
/* calculate xmin and xmax here, so that logs are taken if if necessary */
store2d_point(current_plot, i++, v[0], v[1],
v[0] - v[2] / 2, v[0] + v[2] / 2,
v[1], v[1], 0.0);
break;
case LABELPOINTS:
/* Load the coords just as we would have for a point plot */
store2d_point(current_plot, i, v[0], v[1], v[0], v[0], v[1],
v[1], -1.0);
/* Allocate and fill in a text_label structure to match it */
store_label(current_plot->labels, &(current_plot->points[i]),
i, df_tokens[2],
current_plot->varcolor ? current_plot->varcolor[i] : 0.0);
i++;
break;
case IMAGE: /* x_center y_center color_value */
store2d_point(current_plot, i, v[0], v[1], v[0], v[0], v[1],
v[1], v[2]);
cp = &(current_plot->points[i]);
COLOR_STORE_WITH_LOG_AND_UPDATE_RANGE(cp->CRD_COLOR, v[2], cp->type,
COLOR_AXIS, current_plot->noautoscale, NOOP, cp->CRD_COLOR=v[2]);
i++;
break;
case POINTSTYLE: /* x, y, variable point size */
case LINESPOINTS:
case IMPULSES:
case LINES:
case DOTS:
store2d_point(current_plot, i++, v[0], v[1], v[0], v[0],
v[1], v[1], v[2]);
break;
case BOXPLOT: /* x, y, width */
store2d_point(current_plot, i++, v[0], v[1], v[0]-v[2]/2., v[0]+v[2]/2.,
v[1], v[1], v[2]);
break;
#ifdef EAM_OBJECTS
case CIRCLES: /* x, y, radius */
/* by default a full circle is drawn */
/* negative radius means default radius -> set flag in width */
store2d_point(current_plot, i++, v[0], v[1], v[0]-v[2], v[0]+v[2],
0.0, 360.0, (v[2] >= 0) ? 0.0 : DEFAULT_RADIUS);
break;
case ELLIPSES: /* x, y, major axis = minor axis, 0 as orientation */
store2d_point(current_plot, i++, v[0], v[1], fabs(v[2]), fabs(v[2]),
0.0, v[2], (v[2] >= 0) ? 0.0 : DEFAULT_RADIUS);
break;
#endif
} /*inner switch */
break;
case 4:
/* x, y, ylow, yhigh OR
* x, y, xlow, xhigh OR
* x, y, xdelta, ydelta OR
* x, y, ydelta, width
*/
switch (current_plot->plot_style) {
default:
int_warn(storetoken, "This plot style does not work with 4 cols. Setting to yerrorbars");
current_plot->plot_style = YERRORBARS;
/* fall through */
case YERRORLINES:
case YERRORBARS:
store2d_point(current_plot, i++, v[0], v[1], v[0], v[0], v[2],
v[3], -1.0);
break;
case BOXXYERROR: /* x, y, dx, dy */
case XYERRORLINES:
case XYERRORBARS:
store2d_point(current_plot, i++, v[0], v[1],
v[0] - v[2], v[0] + v[2],
v[1] - v[3], v[1] + v[3], 0.0);
break;
case BOXES:
/* x, y, xmin, xmax */
store2d_point(current_plot, i++, v[0], v[1], v[2], v[3],
v[1], v[1], 0.0);
break;
case XERRORLINES:
case XERRORBARS:
/* x, y, xmin, xmax */
store2d_point(current_plot, i++, v[0], v[1], v[2], v[3],
v[1], v[1], 0.0);
break;
case BOXERROR:
if (boxwidth == -2)
/* x,y, ylow, yhigh --- width automatic */
store2d_point(current_plot, i++, v[0], v[1], v[0], v[0],
v[2], v[3], -1.0);
else
/* x, y, dy, width */
store2d_point(current_plot, i++, v[0], v[1],
v[0] - v[3] / 2, v[0] + v[3] / 2,
v[1] - v[2], v[1] + v[2], 0.0);
break;
case VECTOR:
/* x,y,dx,dy */
store2d_point(current_plot, i++, v[0], v[1], v[0], v[0] + v[2],
v[1], v[1] + v[3], 0.);
break;
case POINTSTYLE:
case LINESPOINTS:
case LABELPOINTS:
/* These are here only to catch the case where no using spec */
/* is given and there are more than 3 columns in the data file */
store2d_point(current_plot, i++, v[0], v[1],
v[0], v[0], v[1], v[1], v[2]);
break;
#ifdef EAM_OBJECTS
case ELLIPSES: /* x, y, major axis, minor axis, 0 as orientation */
store2d_point(current_plot, i++, v[0], v[1], fabs(v[2]), fabs(v[3]),
0.0, v[2], ((v[2] >= 0) && (v[3] >= 0)) ? 0.0 : DEFAULT_RADIUS);
break;
#endif
} /*inner switch */
break;
case 5:
{ /* x, y, ylow, yhigh, width or x open low high close */
switch (current_plot->plot_style) {
default:
int_warn(storetoken, "Unrecognized 5 column plot style; resetting to boxerrorbars");
current_plot->plot_style = BOXERROR;
/*fall through */
case BOXERROR: /* x, y, ylow, yhigh, width */
store2d_point(current_plot, i++, v[0], v[1],
v[0] - v[4] / 2, v[0] + v[4] / 2,
v[2], v[3], 0.0);
break;
case FINANCEBARS: /* x yopen ylow yhigh yclose */
case CANDLESTICKS:
store2d_point(current_plot, i++, v[0], v[1], v[0], v[0],
v[2], v[3], v[4]);
break;
case VECTOR:
/* x,y,dx,dy, variable arrowstyle */
store2d_point(current_plot, i++, v[0], v[1], v[0], v[0] + v[2],
v[1], v[1] + v[3], v[4]);
break;
#ifdef EAM_OBJECTS
case CIRCLES: /* x, y, radius, arc begin, arc end */
/* negative radius means default radius -> set flag in width */
store2d_point(current_plot, i++, v[0], v[1], v[0]-v[2], v[0]+v[2],
v[3], v[4], (v[2] >= 0) ? 0.0 : DEFAULT_RADIUS);
break;
case ELLIPSES: /* x, y, major axis, minor axis, orientation */
store2d_point(current_plot, i++, v[0], v[1], fabs(v[2]), fabs(v[3]),
v[4], v[2], ((v[2] >= 0) && (v[3] >= 0)) ? 0.0 : DEFAULT_RADIUS);
break;
#endif
case RGBIMAGE: /* x_center y_center r_value g_value b_value (rgb) */
goto images;
} /* inner switch */
break;
}
case 7:
/* same as six columns. Width ignored */
/* eh ? - fall through */
case 6:
/* x, y, xlow, xhigh, ylow, yhigh */
switch (current_plot->plot_style) {
default:
int_warn(storetoken, "This plot style does not work with 6 cols. Setting to xyerrorbars");
current_plot->plot_style = XYERRORBARS;
/*fall through */
case XYERRORLINES:
case XYERRORBARS:
case BOXXYERROR:
store2d_point(current_plot, i++, v[0], v[1], v[2], v[3], v[4],
v[5], 0.0);
break;