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psxy.c
2819 lines (2637 loc) · 142 KB
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psxy.c
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/*--------------------------------------------------------------------
*
* Copyright (c) 1991-2022 by the GMT Team (https://www.generic-mapping-tools.org/team.html)
* See LICENSE.TXT file for copying and redistribution conditions.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; version 3 or any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* Contact info: www.generic-mapping-tools.org
*--------------------------------------------------------------------*/
/*
* Author: Paul Wessel
* Date: 1-JAN-2010
* Version: 6 API
*
* Brief synopsis: psxy will read <x,y> points and plot symbols, lines,
* or polygons on maps.
*
* Note on KEYS: S?(=2 means if -S~|q then we may possibly take optional crossing line file, else the ? is set to ! for skipping it.
* The "2" means we must skip two characters (q|~ and f|x) before finding the dataset file name
*/
#include "gmt_dev.h"
#define THIS_MODULE_CLASSIC_NAME "psxy"
#define THIS_MODULE_MODERN_NAME "plot"
#define THIS_MODULE_LIB "core"
#define THIS_MODULE_PURPOSE "Plot lines, polygons, and symbols in 2-D"
#define THIS_MODULE_KEYS "<D{,CC(,T-<,S?(=2,ZD(,>X}"
#define THIS_MODULE_NEEDS "Jd"
#define THIS_MODULE_OPTIONS "-:>BJKOPRUVXYabdefghilpqtw" GMT_OPT("Mmc")
/* Control structure for psxy */
#define PSXY_E_OPT "-E[x|y|X|Y][+a|A][+c[l|f]][+n][+p<pen>][+w<width>]"
struct PSXY_CTRL {
bool no_RJ_needed; /* Special case of -T and no -B when -R -J is not required */
struct PSXY_A { /* -A[m|y|p|x|r|t<step>] */
bool active;
unsigned int mode;
double step;
} A;
struct PSXY_C { /* -C<cpt> or -C<color1>,<color2>[,<color3>,...] */
bool active;
char *file;
} C;
struct PSXY_D { /* -D<dx>/<dy> */
bool active;
double dx, dy;
} D;
struct PSXY_E { /* -E[x[+]|X][y[+]|Y][cap][/[+|-]<pen>] */
bool active;
bool LU; /* True if asymmetrical deviations are instead lower/upper values */
unsigned int xbar, ybar; /* 0 = not used, 1 = error bar, 2 = asymmetrical error bar, 3 = box-whisker, 4 = notched box-whisker */
unsigned int mode; /* 0 = normal, 1 = -C applies to error pen color, 2 = -C applies to symbol fill & error pen color */
double size;
struct GMT_PEN pen;
} E;
struct PSXY_F { /* -F<mode> */
bool active;
struct GMT_SEGMENTIZE S;
} F;
struct PSXY_G { /* -G<fill>|+z */
bool active;
bool set_color;
unsigned int sequential;
struct GMT_FILL fill;
} G;
struct PSXY_H { /* -H read overall scaling factor for symbol size and pen width */
bool active;
unsigned int mode;
double value;
} H;
struct PSXY_I { /* -I[<intensity>] */
bool active;
unsigned int mode; /* 0 if constant, 1 if read from file (symbols only) */
double value;
} I;
struct PSXY_L { /* -L[+xl|r|x0][+yb|t|y0][+e|E][+p<pen>] */
bool active;
bool polygon; /* true when just -L is given */
int outline; /* true when +p<pen> is given */
unsigned int mode; /* Which side for the anchor */
unsigned int anchor; /* 0 not used, 1 = x anchors, 2 = y anchors, 3 = +/-dy, 4 = -dy1, +dy2 */
double value;
struct GMT_PEN pen;
} L;
struct PSXY_N { /* -N[r|c] */
bool active;
unsigned int mode;
} N;
struct PSXY_S { /* -S */
bool active;
char *arg;
} S;
struct PSXY_T { /* -T */
bool active;
} T;
struct PSXY_W { /* -W<pen>[+z] */
bool active;
bool cpt_effect;
bool set_color;
unsigned int sequential;
struct GMT_PEN pen;
} W;
struct PSXY_Z { /* -Z<value> */
bool active;
double value;
char *file;
} Z;
};
#define EBAR_CAP_WIDTH 7.0 /* Error bar cap width */
enum Psxy_ebartype {
EBAR_NONE = 0,
EBAR_NORMAL = 1,
EBAR_ASYMMETRICAL = 2,
EBAR_WHISKER = 3,
EBAR_NOTCHED_WHISKER = 4};
enum Psxy_cliptype {
PSXY_CLIP_REPEAT = 0,
PSXY_CLIP_NO_REPEAT,
PSXY_NO_CLIP_REPEAT,
PSXY_NO_CLIP_NO_REPEAT};
enum Psxy_poltype {
PSXY_POL_X = 1,
PSXY_POL_Y,
PSXY_POL_SYMM_DEV,
PSXY_POL_ASYMM_DEV,
PSXY_POL_ASYMM_ENV};
enum Psxy_scaletype {
PSXY_READ_SCALE = 0,
PSXY_CONST_SCALE = 1};
static void *New_Ctrl (struct GMT_CTRL *GMT) { /* Allocate and initialize a new control structure */
struct PSXY_CTRL *C;
C = gmt_M_memory (GMT, NULL, 1, struct PSXY_CTRL);
/* Initialize values whose defaults are not 0/false/NULL */
C->E.pen = C->W.pen = GMT->current.setting.map_default_pen;
gmt_init_fill (GMT, &C->G.fill, -1.0, -1.0, -1.0); /* Default is no fill */
C->E.size = EBAR_CAP_WIDTH * GMT->session.u2u[GMT_PT][GMT_INCH]; /* 7p */
C->N.mode = PSXY_CLIP_REPEAT;
return (C);
}
static void Free_Ctrl (struct GMT_CTRL *GMT, struct PSXY_CTRL *C) { /* Deallocate control structure */
if (!C) return;
gmt_M_str_free (C->C.file);
gmt_M_str_free (C->S.arg);
gmt_freepen (GMT, &C->W.pen);
gmt_M_free (GMT, C);
}
GMT_LOCAL void psxy_plot_x_errorbar (struct GMT_CTRL *GMT, struct PSL_CTRL *PSL, double x, double y, double delta_x[], double error_width2, int line, int kind) {
double x_0, y_0, x_1, x_2, y_1, y_2;
bool tip1, tip2;
unsigned int first = 0, second = (kind == EBAR_ASYMMETRICAL) ? 1 : 0; /* first and second are either both 0 or second is 1 for asymmetrical bars */
tip1 = tip2 = (error_width2 > 0.0);
gmt_geo_to_xy (GMT, x - fabs (delta_x[first]), y, &x_1, &y_1);
gmt_geo_to_xy (GMT, x + fabs (delta_x[second]), y, &x_2, &y_2);
if (gmt_M_is_dnan (x_1)) {
gmt_geo_to_xy (GMT, x, y, &x_0, &y_0);
x_1 = MIN (GMT->current.proj.rect[XLO], x_0);
tip1 = false;
GMT_Report (GMT->parent, GMT_MSG_WARNING, "X error bar exceeded domain near line %d. Left bar point reset to %g\n", line, x_1);
}
if (gmt_M_is_dnan (x_2)) {
gmt_geo_to_xy (GMT, x, y, &x_0, &y_0);
x_2 = MAX (GMT->current.proj.rect[XHI], x_0);
tip2 = false;
GMT_Report (GMT->parent, GMT_MSG_WARNING, "X error bar exceeded domain near line %d. Right bar point reset to %g\n", line, x_1);
}
PSL_plotsegment (PSL, x_1, y_1, x_2, y_2);
if (tip1) PSL_plotsegment (PSL, x_1, y_1 - error_width2, x_1, y_1 + error_width2);
if (tip2) PSL_plotsegment (PSL, x_2, y_2 - error_width2, x_2, y_2 + error_width2);
}
GMT_LOCAL void psxy_plot_y_errorbar (struct GMT_CTRL *GMT, struct PSL_CTRL *PSL, double x, double y, double delta_y[], double error_width2, int line, int kind) {
double x_0, y_0, x_1, x_2, y_1, y_2;
bool tip1, tip2;
unsigned int first = 0, second = (kind == EBAR_ASYMMETRICAL) ? 1 : 0; /* first and second are either both 0 or second is 1 for asymmetrical bars */
tip1 = tip2 = (error_width2 > 0.0);
gmt_geo_to_xy (GMT, x, y - fabs (delta_y[first]), &x_1, &y_1);
gmt_geo_to_xy (GMT, x, y + fabs (delta_y[second]), &x_2, &y_2);
if (gmt_M_is_dnan (y_1)) {
gmt_geo_to_xy (GMT, x, y, &x_0, &y_0);
y_1 = MIN (GMT->current.proj.rect[YLO], y_0);
tip1 = false;
GMT_Report (GMT->parent, GMT_MSG_WARNING, "Y error bar exceeded domain near line %d. Bottom bar point reset to %g\n", line, y_1);
}
if (gmt_M_is_dnan (y_2)) {
gmt_geo_to_xy (GMT, x, y, &x_0, &y_0);
y_2 = MAX (GMT->current.proj.rect[YHI], y_0);
tip2 = false;
GMT_Report (GMT->parent, GMT_MSG_WARNING, "Y error bar exceeded domain near line %d. Top bar point reset to %g\n", line, y_1);
}
PSL_plotsegment (PSL, x_1, y_1, x_2, y_2);
if (tip1) PSL_plotsegment (PSL, x_1 - error_width2, y_1, x_1 + error_width2, y_1);
if (tip2) PSL_plotsegment (PSL, x_2 - error_width2, y_2, x_2 + error_width2, y_2);
}
GMT_LOCAL void psxy_plot_x_whiskerbar (struct GMT_CTRL *GMT, struct PSL_CTRL *PSL, double x, double y, double hinge[], double error_width2, double rgb[], int line, int kind) {
unsigned int i;
static unsigned int q[4] = {0, 25, 75, 100};
double xx[4], yy[4];
for (i = 0; i < 4; i++) { /* for 0, 25, 75, 100% hinges */
gmt_geo_to_xy (GMT, hinge[i], y, &xx[i], &yy[i]);
if (gmt_M_is_dnan (xx[i])) {
GMT_Report (GMT->parent, GMT_MSG_WARNING, "X %d %% hinge exceeded domain near line %d\n", q[i], line);
xx[i] = (i < 2) ? GMT->current.proj.rect[XLO] : GMT->current.proj.rect[XHI];
}
}
yy[1] -= error_width2;
yy[2] += error_width2;
PSL_plotsegment (PSL, xx[0], yy[1], xx[0], yy[2]); /* Left whisker */
PSL_plotsegment (PSL, xx[0], yy[0], xx[1], yy[0]);
PSL_plotsegment (PSL, xx[3], yy[1], xx[3], yy[2]); /* Right whisker */
PSL_plotsegment (PSL, xx[3], yy[0], xx[2], yy[0]);
PSL_setfill (PSL, rgb, 1);
if (kind == 2) { /* Notched box-n-whisker plot */
double xp[10], yp[10], s, p;
s = 1.7 * ((1.25 * (xx[2] - xx[1])) / (1.35 * hinge[4])); /* 5th term in hinge has n */
xp[0] = xp[9] = xx[1];
xp[1] = xp[8] = ((p = (x - s)) < xp[0]) ? xp[0] : p;
xp[2] = xp[7] = x;
xp[4] = xp[5] = xx[2];
xp[3] = xp[6] = ((p = (x + s)) > xp[4]) ? xp[4] : p;
yp[0] = yp[1] = yp[3] = yp[4] = yy[1];
yp[5] = yp[6] = yp[8] = yp[9] = yy[2];
yp[2] = yy[0] - 0.5 * error_width2;
yp[7] = yy[0] + 0.5 * error_width2;
PSL_plotpolygon (PSL, xp, yp, 10);
PSL_plotsegment (PSL, x, yp[7], x, yp[2]); /* Median line */
}
else {
PSL_plotbox (PSL, xx[1], yy[1], xx[2], yy[2]); /* Main box */
PSL_plotsegment (PSL, x, yy[1], x, yy[2]); /* Median line */
}
}
GMT_LOCAL void psxy_plot_y_whiskerbar (struct GMT_CTRL *GMT, struct PSL_CTRL *PSL, double x, double y, double hinge[], double error_width2, double rgb[], int line, int kind) {
unsigned int i;
static unsigned int q[4] = {0, 25, 75, 100};
double xx[4], yy[4];
for (i = 0; i < 4; i++) { /* for 0, 25, 75, 100% hinges */
gmt_geo_to_xy (GMT, x, hinge[i], &xx[i], &yy[i]);
if (gmt_M_is_dnan (yy[i])) {
GMT_Report (GMT->parent, GMT_MSG_WARNING, "Y %d %% hinge exceeded domain near line %d\n", q[i], line);
yy[i] = (i < 2) ? GMT->current.proj.rect[YLO] : GMT->current.proj.rect[YHI];
}
}
xx[1] -= error_width2;
xx[2] += error_width2;
PSL_plotsegment (PSL, xx[1], yy[0], xx[2], yy[0]); /* bottom whisker */
PSL_plotsegment (PSL, xx[0], yy[0], xx[0], yy[1]);
PSL_plotsegment (PSL, xx[1], yy[3], xx[2], yy[3]); /* Top whisker */
PSL_plotsegment (PSL, xx[0], yy[3], xx[0], yy[2]);
PSL_setfill (PSL, rgb, 1);
if (kind == 2) { /* Notched box-n-whisker plot */
double xp[10], yp[10], s, p;
s = 1.7 * ((1.25 * (yy[2] - yy[1])) / (1.35 * hinge[4])); /* 5th term in hinge has n */
xp[0] = xp[1] = xp[3] = xp[4] = xx[2];
xp[5] = xp[6] = xp[8] = xp[9] = xx[1];
xp[2] = xx[0] + 0.5 * error_width2;
xp[7] = xx[0] - 0.5 * error_width2;
yp[0] = yp[9] = yy[1];
yp[1] = yp[8] = ((p = (y - s)) < yp[0]) ? yp[0] : p;
yp[2] = yp[7] = y;
yp[4] = yp[5] = yy[2];
yp[3] = yp[6] = ((p = (y + s)) > yp[4]) ? yp[4] : p;
PSL_plotpolygon (PSL, xp, yp, 10);
PSL_plotsegment (PSL, xp[7], y, xp[2], y); /* Median line */
}
else {
PSL_plotbox (PSL, xx[2], yy[2], xx[1], yy[1]); /* Main box */
PSL_plotsegment (PSL, xx[1], y, xx[2], y); /* Median line */
}
}
GMT_LOCAL void psxy_decorate_debug (struct GMT_CTRL *GMT, struct PSL_CTRL *PSL, struct GMT_DECORATE *G) {
uint64_t row;
double size[1] = {0.05};
/* If called we simply draw the helper lines or points to assist in debug */
gmt_setpen (GMT, &G->debug_pen);
if (G->fixed) { /* Place a small open circle at each fixed point */
PSL_setfill (PSL, GMT->session.no_rgb, PSL_OUTLINE);
for (row = 0; row < (uint64_t)G->f_n; row++)
PSL_plotsymbol (PSL, G->f_xy[0][row], G->f_xy[1][row], size, PSL_CIRCLE);
}
else if (G->crossing) { /* Draw a thin line */
uint64_t seg;
unsigned int *pen = NULL;
struct GMT_DATASEGMENT *S = NULL;
for (seg = 0; seg < G->X->n_segments; seg++) {
S = G->X->table[0]->segment[seg]; /* Current segment */
pen = gmt_M_memory (GMT, NULL, S->n_rows, unsigned int);
for (row = 1, pen[0] = PSL_MOVE; row < S->n_rows; row++) pen[row] = PSL_DRAW;
gmt_plot_line (GMT, S->data[GMT_X], S->data[GMT_Y], pen, S->n_rows, PSL_LINEAR);
gmt_M_free (GMT, pen);
}
}
}
GMT_LOCAL int psxy_convert_eps_to_def (struct GMT_CTRL *GMT, char *in_name, char *path) {
/* Replace an EPS file with a simple 1-liner custom file using an inline EPS command P instead.
* path is updated to point to the replacement temp file */
FILE *fp = NULL;
if ((fp = gmt_create_tempfile (GMT->parent, "gmt_epssymbol", ".def", path)) == NULL) /* Not good... */
return GMT_RUNTIME_ERROR;
fprintf (fp, "# Custom symbol for placing a single EPS file\n0 0 1 %s %c\n", in_name, GMT_SYMBOL_EPS); /* The EPS placement item */
fclose (fp);
return GMT_NOERROR;
}
GMT_LOCAL int psxy_plot_decorations (struct GMT_CTRL *GMT, struct GMT_DATASET *D, struct GMT_DECORATE *G, bool decorate_custom) {
/* Accept the dataset D with records of {x, y, size, angle, symbol} and plot rotated symbols at those locations.
* Note: The x,y are projected coordinates in inches, hence our -R -J choice below. */
unsigned int type = 0, pos = 0;
bool l_active = GMT->common.l.active;
size_t len;
char string[GMT_VF_LEN] = {""}, buffer[GMT_BUFSIZ] = {""}, tmp_file[PATH_MAX] = {""}, kode[2] = {'K', 'k'};
char name[GMT_BUFSIZ] = {""}, path[PATH_MAX] = {""}, *symbol_code = G->symbol_code;
FILE *fp = NULL;
gmt_set_dataset_minmax (GMT, D); /* Determine min/max for each column and add up total records */
if (D->n_records == 0) /* No symbols to plot */
return GMT_NOERROR;
GMT->common.l.active = false; /* Since this call to psxy is not meant to do -l anyway */
/* Here we have symbols. Open up a virtual input file for the call to psxy */
if (GMT_Open_VirtualFile (GMT->parent, GMT_IS_DATASET, GMT_IS_POINT, GMT_IN|GMT_IS_REFERENCE, D, string) != GMT_NOERROR)
return (GMT->parent->error);
if (decorate_custom) { /* Must find the custom symbol */
if ((type = gmt_locate_custom_symbol (GMT, &symbol_code[1], name, path, &pos)) == 0) return (GMT_RUNTIME_ERROR);
if (type == GMT_CUSTOM_EPS) { /* Must replace an EPS symbol with a simple 1-liner custom file */
/* Update data file trailing text with new symbol name */
uint64_t seg, row;
struct GMT_DATASEGMENT *S = NULL;
if (psxy_convert_eps_to_def (GMT, &symbol_code[1], path))
return GMT_RUNTIME_ERROR;
sprintf (name, "k%s", path); name[strlen(name)-4] = '\0'; /* Chop off extension in temp symbol file name */
for (seg = 0; seg < D->n_segments; seg++) {
S = D->table[0]->segment[seg];
for (row = 0; row < S->n_rows; row++) {
gmt_M_str_free (S->text[row]); /* Free old name */
S->text[row] = strdup (name); /* Allocate and store new name */
}
}
type = GMT_CUSTOM_DEF; /* Update the symbol type */
}
}
if (G->debug) psxy_decorate_debug (GMT, GMT->PSL, G); /* Debugging lines and points */
if (GMT->parent->tmp_dir) /* Make unique file in temp dir */
sprintf (tmp_file, "%s/GMT_symbol%d.def", GMT->parent->tmp_dir, (int)getpid());
else /* Make unique file in current dir */
sprintf (tmp_file, "GMT_symbol%d.def", (int)getpid());
GMT_Report (GMT->parent, GMT_MSG_DEBUG, "Number of decorated line symbols: %d\n", (int)D->n_records);
GMT_Report (GMT->parent, GMT_MSG_DEBUG, "Temporary decorated line symbol .def file created: %s\n", tmp_file);
if ((fp = fopen (tmp_file, "w")) == NULL) { /* Disaster */
GMT_Report (GMT->parent, GMT_MSG_ERROR, "Unable to create symbol file needed for decorated lines: %s\n", tmp_file);
return GMT_ERROR_ON_FOPEN;
}
if (type == GMT_CUSTOM_DEF) { /* Use the user's custom symbol but add the rotation requirement */
FILE *fpc = fopen (path, "r"); /* We know the file exists from earlier parsing */
bool first = true;
while (fgets (buffer, GMT_BUFSIZ, fpc)) {
if (buffer[0] == '#') { fprintf (fp, "%s", buffer); continue; } /* Pass comments */
if (!strncmp (buffer, "N: ", 3U)) {
GMT_Report (GMT->parent, GMT_MSG_ERROR, "Decorated lines cannot use custom symbols that expect extra parameters: %s\n", name);
fclose (fpc);
return (GMT_RUNTIME_ERROR);
}
if (first) { /* Insert our count and rotation as first actionable macro command */
fprintf (fp, "# Rotated custom symbol, read size and rotation from data file\nN: 1 o\n$1 R\n");
first = false;
}
fprintf (fp, "%s", buffer); /* Pass remaining lines unchanged */
}
fclose (fpc);
}
else /* Make a rotated plain symbol of type picked up from input file */
fprintf (fp, "# Rotated standard symbol, need size, rotation and symbol code from data file\nN: 1 o\n$1 R\n0 0 1 ?\n");
fclose (fp);
len = strlen (tmp_file) - 4; /* Position of the '.' since we know extension is .def */
tmp_file[len] = '\0'; /* Temporarily hide the ".def" extension */
/* Use -Sk for custom; otherwise -SK since our kustom symbol has a variable standard symbol ? that we must get from each data records */
sprintf (buffer, "-R%g/%g/%g/%g -Jx1i -O -K -S%c%s %s --GMT_HISTORY=readonly", GMT->current.proj.rect[XLO], GMT->current.proj.rect[XHI],
GMT->current.proj.rect[YLO], GMT->current.proj.rect[YHI], kode[decorate_custom], tmp_file, string);
GMT_Report (GMT->parent, GMT_MSG_INFORMATION, "Calling psxy with args %s\n", buffer);
if (GMT_Call_Module (GMT->parent, "psxy", GMT_MODULE_CMD, buffer) != GMT_NOERROR) /* Plot all the symbols */
return (GMT->parent->error);
if (GMT_Close_VirtualFile (GMT->parent, string) != GMT_NOERROR)
return (GMT->parent->error);
tmp_file[len] = '.'; /* Restore the ".def" extension so we can delete the file (unless -Vd) */
if (gmt_M_is_verbose (GMT, GMT_MSG_DEBUG)) { /* Leave the symbol def and txt files in the temp directory */
char tmp_file2[GMT_LEN64] = {""};
bool was = GMT->current.setting.io_header[GMT_OUT]; /* Save current setting */
GMT_Report (GMT->parent, GMT_MSG_DEBUG, "Temporary symbol file for decorated lines saved: %s\n", tmp_file);
if (GMT->parent->tmp_dir) /* Make unique file in tmp dir */
sprintf (tmp_file2, "%s/GMT_symbol%d.txt", GMT->parent->tmp_dir, (int)getpid());
else /* Make unique file in current dir */
sprintf (tmp_file2, "GMT_symbol%d.txt", (int)getpid());
sprintf (buffer, "-R -J -O -K -SK%s %s", tmp_file, tmp_file2);
GMT_Set_Comment (GMT->parent, GMT_IS_DATASET, GMT_COMMENT_IS_TEXT | GMT_COMMENT_IS_COMMAND, buffer, D);
GMT_Report (GMT->parent, GMT_MSG_DEBUG, "Temporary data file for decorated lines saved: %s\n", tmp_file2);
gmt_set_tableheader (GMT, GMT_OUT, true); /* We need to ensure we write the header here */
if (GMT_Write_Data (GMT->parent, GMT_IS_DATASET, GMT_IS_FILE, GMT_IS_POINT, GMT_IO_RESET, NULL, tmp_file2, D) != GMT_NOERROR) {
GMT_Report (GMT->parent, GMT_MSG_ERROR, "Unable to write file: %s\n", tmp_file2);
}
gmt_set_tableheader (GMT, GMT_OUT, was); /* Restore what we had */
}
else {
if (gmt_remove_file (GMT, tmp_file)) /* Just remove the symbol def file */
GMT_Report (GMT->parent, GMT_MSG_ERROR, "Failed to delete file: %s\n", tmp_file);
}
GMT->common.l.active = l_active; /* Reset in case it was set */
return GMT_NOERROR;
}
GMT_LOCAL void psxy_plot_end_vectors (struct GMT_CTRL *GMT, double *x, double *y, uint64_t n, struct GMT_PEN *P) {
/* Maybe add vector heads. Here, x,y are in inches on the plot */
unsigned int k, current[2] = {0,0}, next[2] = {1,0};
double dim[PSL_MAX_DIMS], angle, s, c, L;
char *end[2] = {"start", "end"};
if (n < 2) return; /* No line of mine */
if (P->end[0].V == NULL && P->end[1].V == NULL) return; /* No arrow heads requested */
current[1] = (unsigned int)n-1; next[1] = (unsigned int)n-2;
PSL_command (GMT->PSL, "V\n");
GMT->PSL->current.linewidth = -1.0; /* Will be changed by next PSL_setlinewidth */
gmt_M_memset (dim, PSL_MAX_DIMS, double);
for (k = 0; k < 2; k++) {
if (P->end[k].V == NULL) continue;
P->end[k].V->v.status |= PSL_VEC_LINE; /* Flag so head is not skipped due to "short" vector */
/* Add vector heads to this end */
PSL_comment (GMT->PSL, "Add vector head to %s of line\n", end[k]);
angle = d_atan2d (y[current[k]] - y[next[k]], x[current[k]] - x[next[k]]);
sincosd (angle, &s, &c);
L = (P->end[k].V->v.v_kind[1] == PSL_VEC_TERMINAL) ? 1e-3 : P->end[k].length;
P->end[k].V->v.v_width = (float)(P->end[k].V->v.pen.width * GMT->session.u2u[GMT_PT][GMT_INCH]); /* Set symbol pen width */
dim[PSL_VEC_XTIP] = x[current[k]] + c * L;
dim[PSL_VEC_YTIP] = y[current[k]] + s * L;
dim[PSL_VEC_TAIL_WIDTH] = P->end[k].V->v.v_width;
dim[PSL_VEC_HEAD_LENGTH] = P->end[k].V->v.h_length;
dim[PSL_VEC_HEAD_WIDTH] = P->end[k].V->v.h_width;
dim[PSL_VEC_HEAD_SHAPE] = P->end[k].V->v.v_shape;
dim[PSL_VEC_STATUS] = (double)P->end[k].V->v.status;
dim[PSL_VEC_HEAD_TYPE_BEGIN] = (double)P->end[k].V->v.v_kind[0];
dim[PSL_VEC_HEAD_TYPE_END] = (double)P->end[k].V->v.v_kind[1];
dim[PSL_VEC_TRIM_BEGIN] = (double)P->end[k].V->v.v_trim[0];
dim[PSL_VEC_TRIM_END] = (double)P->end[k].V->v.v_trim[1];
if (P->end[k].V->v.status & PSL_VEC_OUTLINE2) { /* Gave specific head outline pen */
PSL_defpen (GMT->PSL, "PSL_vecheadpen", P->end[k].V->v.pen.width, P->end[k].V->v.pen.style, P->end[k].V->v.pen.offset, P->end[k].V->v.pen.rgb);
dim[PSL_VEC_HEAD_PENWIDTH] = P->end[k].V->v.pen.width;
}
else { /* Set default based on line pen */
PSL_defpen (GMT->PSL, "PSL_vecheadpen", 0.5 * P->width, P->style, P->offset, P->rgb);
dim[PSL_VEC_HEAD_PENWIDTH] = 0.5 * P->width;
}
gmt_setfill (GMT, &P->end[k].V->v.fill, (P->end[k].V->v.status & PSL_VEC_OUTLINE2) == PSL_VEC_OUTLINE2);
PSL_plotsymbol (GMT->PSL, x[current[k]], y[current[k]], dim, PSL_VECTOR);
}
GMT->PSL->current.linewidth = -1.0; /* Will be changed by next PSL_setlinewidth */
PSL_command (GMT->PSL, "U\n");
}
static int usage (struct GMTAPI_CTRL *API, int level) {
/* This displays the psxy synopsis and optionally full usage information */
const char *name = gmt_show_name_and_purpose (API, THIS_MODULE_LIB, THIS_MODULE_CLASSIC_NAME, THIS_MODULE_PURPOSE);
const char *mod_name = &name[4]; /* To skip the leading gmt for usage messages */
const char *T[2] = {" [-T]", ""};
if (level == GMT_MODULE_PURPOSE) return (GMT_NOERROR);
GMT_Usage (API, 0, "usage: %s [<table>] %s %s [-A[m|p|r|t|x|y]] [%s] [-C<cpt>] [-D<dx>/<dy>] [%s] [-F%s] [-G<fill>|+z] "
"[-H[<scale>]] [-I[<intens>]] %s[%s] [-N[c|r]] %s%s [-S[<symbol>][<size>]]%s [%s] [%s] [-W[<pen>][<attr>]] [%s] [%s] "
"[-Z<value>|<file>[+f|l]] [%s] [%s] %s[%s] [%s] [%s] [%s] [%s] [%s] [%s] [%s] [%s] [%s] [%s] [%s] [%s]\n",
name, GMT_J_OPT, GMT_Rgeoz_OPT, GMT_B_OPT, PSXY_E_OPT, GMT_SEGMENTIZE3, API->K_OPT, PLOT_L_OPT, API->O_OPT, API->P_OPT,
T[API->GMT->current.setting.run_mode], GMT_U_OPT, GMT_V_OPT, GMT_X_OPT, GMT_Y_OPT, GMT_a_OPT, GMT_bi_OPT, API->c_OPT,
GMT_di_OPT, GMT_e_OPT, GMT_f_OPT, GMT_g_OPT, GMT_h_OPT, GMT_i_OPT, GMT_l_OPT, GMT_p_OPT, GMT_q_OPT, GMT_tv_OPT,
GMT_w_OPT, GMT_colon_OPT, GMT_PAR_OPT);
if (level == GMT_SYNOPSIS) return (GMT_MODULE_SYNOPSIS);
GMT_Message (API, GMT_TIME_NONE, " REQUIRED ARGUMENTS:\n");
GMT_Option (API, "<,J-Z,R");
GMT_Message (API, GMT_TIME_NONE, "\n OPTIONAL ARGUMENTS:\n");
GMT_Usage (API, 1, "\n-A[m|p|r|t|x|y]");
GMT_Usage (API, -2, "Suppress drawing geographic line segments as great circle arcs, i.e., draw "
"straight lines instead. Six optional directives instead convert paths to staircase curves:");
GMT_Usage (API, 3, "m: First follow meridians, then parallels when connecting geographic points.");
GMT_Usage (API, 3, "p: First follow parallels, then meridians when connecting geographic point.");
GMT_Usage (API, 3, "r: First follow radius, then theta for staircase curves for Polar projection.");
GMT_Usage (API, 3, "t: First follow theta, then radius for staircase curves for Polar projection.");
GMT_Usage (API, 3, "x: First follow x, then y for staircase curves for Cartesian projections.");
GMT_Usage (API, 3, "y: First follow y, then x for staircase curves for Cartesian projections.");
GMT_Option (API, "B-");
GMT_Usage (API, 1, "\n-C<cpt>|<color1>,<color2>[,<color3>,...]");
GMT_Usage (API, -2, "Assign symbol colors based on z-value in 3rd column. "
"Note: requires -S. Without -S, %s excepts lines/polygons "
"and looks for -Z<value> options in each segment header. Then, color is "
"applied for polygon fill (-L) or polygon pen (no -L).", mod_name);
GMT_Usage (API, 1, "\n-D<dx>/<dy>.");
GMT_Usage (API, -2, "Offset symbol or line positions by <dx>/<dy> [no offset].");
GMT_Usage (API, 1, "\n%s", PSXY_E_OPT);
GMT_Usage (API, -2, "Draw (symmetrical) standard error bars for x and/or y. "
"If X or Y are specified then a box-and-whisker diagram is drawn instead, "
"requiring four extra columns with the 0%%, 25%%, 75%%, and 100%% quantiles. "
"The x or y coordinate is expected to represent the 50%% quantile. Optional modifiers:");
GMT_Usage (API, 3, "+a Select asymmetrical errors (reads two columns) [symmetrical, reads one column].");
GMT_Usage (API, 3, "+A As +a, but reads lower and upper bounds instead.");
GMT_Usage (API, 3, "+p Set the error bar <pen> attributes.");
GMT_Usage (API, 3, "+n Select notched box-and whisker (notch width represents uncertainty "
"in the median); a 5th extra column with the sample size is required via the input.");
GMT_Usage (API, 3, "+w Change error cap <width> [%gp].", EBAR_CAP_WIDTH);
GMT_Usage (API, -2, "The settings of -W, -G affect the appearance of the 25-75%% box. "
"Given -C, use +cl to apply CPT color to error pen and +cf for error fill [both].");
gmt_segmentize_syntax (API->GMT, 'F', 1);
gmt_fill_syntax (API->GMT, 'G', NULL, "Specify color or pattern [no fill].");
GMT_Usage (API, -2, "The -G option can be present in all segment headers (not with -S). "
"To assign fill color via -Z, give -G+z).");
GMT_Usage (API, 1, "\n-H[<scale>]");
GMT_Usage (API, -2, "Scale symbol sizes (set via -S or input column) by factors read from scale column. "
"The scale column follows the symbol size column. Alternatively, append a fixed <scale>.");
GMT_Usage (API, 1, "\n-I[<intens>]");
GMT_Usage (API, -2, "Use the intensity to modulate the fill color (requires -C or -G). "
"If no intensity is given we expect it to follow symbol size in the data record.");
GMT_Option (API, "K");
GMT_Usage (API, 1, "\n%s", PLOT_L_OPT);
GMT_Usage (API, -2, "Force closed polygons, or append modifiers to build polygon from a line:");
GMT_Usage (API, 3, "+d Symmetrical envelope around y(x) using deviations dy(x) from col 3.");
GMT_Usage (API, 3, "+D Asymmetrical envelope around y(x) using deviations dy1(x) and dy2(x) from cols 3-4.");
GMT_Usage (API, 3, "+b Asymmetrical envelope around y(x) using bounds yl(x) and yh(x) from cols 3-4.");
GMT_Usage (API, 3, "+x Connect 1st and last point to anchor points at l (xmin), r (xmax), or x0.");
GMT_Usage (API, 3, "+y Connect 1st and last point to anchor points at b (ymin), t (ymax), or y0.");
GMT_Usage (API, 3, "+p Draw polygon outline with <pen> [no outline].");
GMT_Usage (API, -2, "The polygon created may be painted via -G.");
GMT_Usage (API, 1, "\n-N[c|r]");
GMT_Usage (API, -2, "Do Not skip or clip symbols that fall outside the map border [clipping is on]:");
GMT_Usage (API, 3, "r: Turn off clipping and plot repeating symbols for periodic maps.");
GMT_Usage (API, 3, "c: Retain clipping but turn off plotting of repeating symbols for periodic maps.");
GMT_Usage (API, -2, "[Default will clip or skip symbols that fall outside and plot repeating symbols].");
GMT_Option (API, "O,P");
GMT_Usage (API, 1, "\n-S[<symbol>][<size>]");
GMT_Usage (API, -2, "Select symbol type and symbol size (in %s). Choose from these symbols:",
API->GMT->session.unit_name[API->GMT->current.setting.proj_length_unit]);
GMT_Usage (API, 2, "\n%s Basic geometric symbol. Append one:", GMT_LINE_BULLET);
GMT_Usage (API, -3, "-(xdash), +(plus), st(a)r, (b|B)ar, (c)ircle, (d)iamond, (e)llipse, "
"(f)ront, octa(g)on, (h)exagon, (i)nvtriangle, (j)rotated rectangle, "
"(k)ustom, (l)etter, (m)athangle, pe(n)tagon, (p)oint, (q)uoted line, (r)ectangle, "
"(R)ounded rectangle, (s)quare, (t)riangle, (v)ector, (w)edge, (x)cross, (y)dash, or "
"=(geovector, i.e., great or small circle vectors) or ~(decorated line).");
GMT_Usage (API, -3, "If no size is specified, then the 3rd column must have sizes. "
"If no symbol is specified, then last column must have symbol codes. "
"[Note: if -C is selected then 3rd means 4th column, etc.]. "
"Symbols A, C, D, G, H, I, N, S, T are adjusted to have same area "
"as a circle of the specified diameter.");
GMT_Usage (API, 2, "\n%s Bar: -Sb|B[<size_x|size_y>[c|i|p|q]][+b|B[<base>]][+v|i<nz>][+s[<gap>]]", GMT_LINE_BULLET);
GMT_Usage (API, -3, "Place horizontal or vertical bars. Use upper case -SB for horizontal bars "
"(<base> then refers to x and width may be in y-units) [Default is vertical]. Append size "
"and use unit q if size is quantity given in x-input units [Default is %s]. Available modifiers:",
API->GMT->session.unit_name[API->GMT->current.setting.proj_length_unit]);
GMT_Usage (API, 3, "+B Heights are measured relative to <base> [relative to origin].");
GMT_Usage (API, 3, "+b Set <base>. Alternatively, leave <base> off to read it from file.");
GMT_Usage (API, 3, "+i Increments are given instead or values for multiband bars.");
GMT_Usage (API, 3, "+s Side-by-side placement of multiband bars [stacked multiband bars]. "
"Optionally, append <gap> between bars in fraction (or percent) of <size> [no gap].");
GMT_Usage (API, 3, "+v For multi-band bars, append <nbands>; then <nbands> values will "
"be read from file instead of just one.");
GMT_Usage (API, -3, "Multiband bars requires -C with one color per band (values 0, 1, ...). "
"For -SB the input band values are x (or dx) values instead of y (or dy). ");
GMT_Usage (API, 2, "\n%s Decorated line: -S~[d|n|l|s|x]<info>[:<symbolinfo>]", GMT_LINE_BULLET);
GMT_Usage (API, -3, "The <code><info> settings control placement of symbols along lines. Select from these codes:");
gmt_cont_syntax (API->GMT, 3, 2);
GMT_Usage (API, 3, "<symbolinfo> controls the symbol attributes. Choose optional modifiers:");
gmt_label_syntax (API->GMT, 2, 2);
GMT_Usage (API, 2, "\n%s Ellipse: If not given, then direction, major, and minor axis must be in columns 3-5. "
"If -SE rather than -Se is selected, %s will expect azimuth, and "
"axes [in km], and convert azimuths based on map projection. "
"Use -SE- for a degenerate ellipse (circle) with only its diameter given "
"in column 3, or append a fixed diameter to -SE instead. "
"Append any of the units in %s to the axes, and "
"if reading dimensions from file, just append the unit [Default is k]. "
"For linear projection and -SE we scale the axes by the map scale.", GMT_LINE_BULLET, mod_name, GMT_LEN_UNITS_DISPLAY);
GMT_Usage (API, 2, "\n%s Rotatable Rectangle: If not given, we read direction, width and height from columns 3-5. "
"If -SJ rather than -Sj is selected, %s will expect azimuth, and "
"dimensions [in km] and convert azimuths based on map projection. "
"Use -SJ- for a degenerate rectangle (square w/no rotation) with one dimension given "
"in column 3, or append a fixed dimension to -SJ instead. "
"Append any of the units in %s to the axes, and "
"if reading dimensions from file, just append the unit [Default is k]. "
"For linear projection and -SJ we scale dimensions by the map scale.", GMT_LINE_BULLET, mod_name, GMT_LEN_UNITS_DISPLAY);
GMT_Usage (API, 2, "\n%s Front: -Sf<spacing>[/<ticklen>][+r|l][+f|t|s|c|b|v][+o<offset>][+p<pen>]", GMT_LINE_BULLET);
GMT_Usage (API, -3, "If <spacing> is negative it means the number of gaps instead. "
"If <spacing> has a leading + then <spacing> is used exactly [adjusted to fit line length]. "
"If not given, <ticklen> defaults to 15%% of <spacing>. Append various modifiers:");
GMT_Usage (API, 3, "+l Plot symbol to the left of the front [centered].");
GMT_Usage (API, 3, "+r Plot symbol to the right of the front [centered].");
GMT_Usage (API, 3, "+i Make main front line invisible [drawn using pen settings from -W].");
GMT_Usage (API, 3, "+b Plot square when centered, half-square otherwise.");
GMT_Usage (API, 3, "+c Plot full circle when centered, half-circle otherwise.");
GMT_Usage (API, 3, "+f Plot centered cross-tick or tick only in specified direction [Default].");
GMT_Usage (API, 3, "+s Plot left-or right-lateral strike-slip arrows. Optionally append the arrow angle [20].");
GMT_Usage (API, 3, "+S Same as +s but with curved arrow-heads.");
GMT_Usage (API, 3, "+t Plot diagonal square when centered, directed triangle otherwise.");
GMT_Usage (API, 3, "+o Plot first symbol when along-front distance is <offset> [0].");
GMT_Usage (API, 3, "+p Append <pen> for front symbol outline; if no <pen> then no outline [Outline with -W pen].");
GMT_Usage (API, 3, "+v Plot two inverted triangles, directed inverted triangle otherwise.");
GMT_Usage (API, -3, "Only one of +b|c|f|i|s|S|t|v may be selected.");
GMT_Usage (API, 2, "\n%s Kustom: -Sk|K<symbolname>[/<size>]", GMT_LINE_BULLET);
GMT_Usage (API, -3, "Append <symbolname> immediately after 'k|K'; this will look for "
"<symbolname>.def or <symbolname>.eps in the current directory, in $GMT_USERDIR, "
"or in $GMT_SHAREDIR (searched in that order). Give full path if located elsewhere. "
"Use upper case 'K' if your custom symbol refers a variable symbol, ?.");
gmt_list_custom_symbols (API->GMT);
GMT_Usage (API, 2, "\n%s Letter: -Sl[<size>]+t<string>[a|A<angle>][+f<font>][+j<justify]", GMT_LINE_BULLET);
GMT_Usage (API, -3, "Specify <size> of letter; append required and optional modifiers:");
GMT_Usage (API, 3, "+t Specify <string> to use (required).");
GMT_Usage (API, 3, "+a Set text angle relative to horizontal [0]. Use +A if map azimuth.");
GMT_Usage (API, 3, "+f Set specific <font> for text placement [FONT_ANNOT_PRIMARY].");
GMT_Usage (API, 3, "+j Change the text justification via <justify> [CM].");
GMT_Usage (API, 2, "\n%s Mathangle: radius, start, and stop directions of math angle must be in columns 3-5. "
"If -SM rather than -Sm is used, we draw straight angle symbol if 90 degrees.", GMT_LINE_BULLET);
gmt_vector_syntax (API->GMT, 0, 3);
GMT_Usage (API, 2, "\n%s Quoted line: -Sq[d|n|l|s|x]<info>[:<labelinfo>]", GMT_LINE_BULLET);
GMT_Usage (API, -3, "The <code><info> settings control placement of labels along lines. Select from these codes:");
gmt_cont_syntax (API->GMT, 3, 1);
GMT_Usage (API, 3, "<labelinfo> controls the label attributes. Choose from these choices:");
gmt_label_syntax (API->GMT, 2, 1);
GMT_Usage (API, 2, "\n%s Rectangle: If not given, the x- and y-dimensions must be in columns 3-4. "
"Append +s if instead the diagonal corner coordinates are given in columns 3-4.", GMT_LINE_BULLET);
GMT_Usage (API, 2, "\n%s Rounded rectangle: If not given, the x- and y-dimensions and corner radius must be in columns 3-5.", GMT_LINE_BULLET);
GMT_Usage (API, 2, "\n%s Vector: -Sv|V<size>[+a<angle>][+b][+e][+h<shape>][+j<just>][+l][+m][+n[<norm>[/<min>]]][+o<lon>/<lat>][+q][+r][+s][+t[b|e]<trim>][+z]", GMT_LINE_BULLET);
GMT_Usage (API, -3, "Direction and length must be in columns 3-4. "
"If -SV rather than -Sv is selected, %s will expect azimuth and "
"length and convert azimuths based on the chosen map projection.", mod_name);
gmt_vector_syntax (API->GMT, 19, 3);
GMT_Usage (API, 2, "\n%s Wedge: -Sw|W[<outerdiameter>[/<startdir>/<stopdir>]][+a[<dr>][+i<inner_diameter>][+r[<da>]]]", GMT_LINE_BULLET);
GMT_Usage (API, -3, "Append [<outerdiameter>[<startdir><stopdir>]] or we read these parameters from file from column 3. "
"If -SW rather than -Sw is selected, specify two azimuths instead of directions. "
"-SW: Specify <outerdiameter><unit> with units either from %s or %s [Default is k]. "
"-Sw: Specify <outerdiameter><unit> with units from %s [Default is %s].", GMT_LEN_UNITS_DISPLAY, GMT_DIM_UNITS_DISPLAY, GMT_DIM_UNITS_DISPLAY,
API->GMT->session.unit_name[API->GMT->current.setting.proj_length_unit]);
GMT_Usage (API, 3, "+a Just draw arc(s), optionally specify <dr> increment [wedge].");
GMT_Usage (API, 3, "+i Append nonzero <innerdiameter>; we read it from file if not appended.");
GMT_Usage (API, 3, "+r Just draw radial lines, optionally specify <da> increment [wedge].");
GMT_Usage (API, 2, "\n%s Geovector: -S=<size>[+a<angle>][+b][+e][+h<shape>][+j<just>][+l][+m][+n[<norm>[/<min>]]][+o<lon>/<lat>][+q][+r][+s][+t[b|e]<trim>][+z]", GMT_LINE_BULLET);
GMT_Usage (API, -3, "Azimuth and length must be in columns 3-4. "
"Append any of the units in %s to length [k].", GMT_LEN_UNITS_DISPLAY);
gmt_vector_syntax (API->GMT, 3+32, 3);
if (API->GMT->current.setting.run_mode == GMT_CLASSIC) /* -T has no purpose in modern mode */
GMT_Usage (API, 1, "\n-T Ignore all input files.");
GMT_Option (API, "U,V");
gmt_pen_syntax (API->GMT, 'W', NULL, "Set pen attributes [Default pen is %s].", NULL, 15);
GMT_Usage (API, 2, "To assign pen outline color via -Z, append +z.");
GMT_Option (API, "X");
GMT_Usage (API, 1, "\n-Z<value>");
GMT_Usage (API, -2, "Use <value> with -C<cpt> to determine <color> instead of via -G<color> or -W<pen>. ");
GMT_Usage (API, 3, "%s To use <color> for fill, also select -G+z. ", GMT_LINE_BULLET);
GMT_Usage (API, 3, "%s To use <color> for an outline pen, also select -W<pen>+z.", GMT_LINE_BULLET);
GMT_Option (API, "a,bi");
if (gmt_M_showusage (API)) GMT_Usage (API, 2, "Default <ncols> is the required number of columns.");
GMT_Option (API, "c,di,e,f,g,h,i,l,p,qi,T,w,:,.");
return (GMT_MODULE_USAGE);
}
GMT_LOCAL unsigned int psxy_old_W_parser (struct GMTAPI_CTRL *API, struct PSXY_CTRL *Ctrl, char *text) {
unsigned int j = 0, n_errors = 0;
if (text[j] == '-') {Ctrl->W.pen.cptmode = 1; j++;}
if (text[j] == '+') {Ctrl->W.pen.cptmode = 3; j++;}
if (text[j] && gmt_getpen (API->GMT, &text[j], &Ctrl->W.pen)) {
gmt_pen_syntax (API->GMT, 'W', NULL, "sets pen attributes [Default pen is %s]:", NULL, 15);
n_errors++;
}
return n_errors;
}
GMT_LOCAL unsigned int psxy_old_E_parser (struct GMTAPI_CTRL *API, struct PSXY_CTRL *Ctrl, char *text) {
unsigned int j = 0, j0, n_errors = 0;
char txt_a[GMT_LEN256] = {""};
while (text[j] && text[j] != '/') {
switch (text[j]) {
case 'x': /* Error bar for x */
Ctrl->E.xbar = EBAR_NORMAL;
if (text[j+1] == '+') { Ctrl->E.xbar = EBAR_ASYMMETRICAL; j++;}
break;
case 'X': /* Box-whisker instead */
Ctrl->E.xbar = EBAR_WHISKER;
if (text[j+1] == 'n') {Ctrl->E.xbar = EBAR_NOTCHED_WHISKER; j++;}
break;
case 'y': /* Error bar for y */
Ctrl->E.ybar = EBAR_NORMAL;
if (text[j+1] == '+') { Ctrl->E.ybar = EBAR_ASYMMETRICAL; j++;}
break;
case 'Y': /* Box-whisker instead */
Ctrl->E.ybar = EBAR_WHISKER;
if (text[j+1] == 'n') {Ctrl->E.ybar = EBAR_NOTCHED_WHISKER; j++;}
break;
case '+': /* Only allowed for -E+ as shorthand for -Ex+y+ */
if (j == 0) Ctrl->E.xbar = Ctrl->E.ybar = EBAR_ASYMMETRICAL;
break;
default: /* Get error 'cap' width */
strncpy (txt_a, &text[j], GMT_LEN256);
j0 = 0;
while (txt_a[j0] && txt_a[j0] != '/') j0++;
txt_a[j0] = 0;
Ctrl->E.size = gmt_M_to_inch (API->GMT, txt_a);
while (text[j] && text[j] != '/') j++;
j--;
break;
}
j++;
}
if (text[j] == '/') {
j++;
if (text[j] == '-') {Ctrl->E.mode = 1; j++;}
if (text[j] == '+') {Ctrl->E.mode = 2; j++;}
if (text[j] && gmt_getpen (API->GMT, &text[j], &Ctrl->E.pen)) {
gmt_pen_syntax (API->GMT, 'E', NULL, "sets error bar pen attributes", NULL, 0);
n_errors++;
}
}
return (n_errors);
}
static int parse (struct GMT_CTRL *GMT, struct PSXY_CTRL *Ctrl, struct GMT_OPTION *options, struct GMT_SYMBOL *S) {
/* This parses the options provided to psxy and sets parameters in Ctrl.
* Note Ctrl has already been initialized and non-zero default values set.
* Any GMT common options will override values set previously by other commands.
* It also replaces any file names specified as input or output with the data ID
* returned when registering these sources/destinations with the API.
*/
unsigned int n_errors = 0, ztype, n_files = 0;
int j;
char txt_a[GMT_LEN256] = {""}, txt_b[GMT_LEN256] = {""}, *c = NULL;
struct GMT_OPTION *opt = NULL;
struct GMTAPI_CTRL *API = GMT->parent;
for (opt = options; opt; opt = opt->next) { /* Process all the options given */
switch (opt->option) {
case '<': /* Skip input files after checking they exist */
if (GMT_Get_FilePath (API, GMT_IS_DATASET, GMT_IN, GMT_FILE_REMOTE, &(opt->arg))) n_errors++;
n_files++;
break;
/* Processes program-specific parameters */
case 'A': /* Turn off draw_arc mode */
n_errors += gmt_M_repeated_module_option (API, Ctrl->A.active);
switch (opt->arg[0]) {
case 'm': case 'y': case 'r': Ctrl->A.mode = GMT_STAIRS_Y; break;
case 'p': case 'x': case 't': Ctrl->A.mode = GMT_STAIRS_X; break;
#ifdef DEBUG
default: Ctrl->A.step = atof (opt->arg); break; /* Undocumented test feature */
#endif
}
break;
case 'C': /* Vary symbol color with z */
n_errors += gmt_M_repeated_module_option (API, Ctrl->C.active);
gmt_M_str_free (Ctrl->C.file);
if (opt->arg[0]) Ctrl->C.file = strdup (opt->arg);
break;
case 'D':
n_errors += gmt_M_repeated_module_option (API, Ctrl->D.active);
if ((j = sscanf (opt->arg, "%[^/]/%s", txt_a, txt_b)) < 1) {
GMT_Report (API, GMT_MSG_ERROR, "Option -D: Give x [and y] offsets\n");
n_errors++;
}
else {
Ctrl->D.dx = gmt_M_to_inch (GMT, txt_a);
Ctrl->D.dy = (j == 2) ? gmt_M_to_inch (GMT, txt_b) : Ctrl->D.dx;
}
break;
case 'E': /* Get info for error bars and box-whisker bars */
n_errors += gmt_M_repeated_module_option (API, Ctrl->E.active);
if (gmt_found_modifier (GMT, opt->arg, "aAcnpw")) {
/* New parser for -E[x|y|X|Y][+a|A][+cl|f][+n][+p<pen>][+w<capwidth>] */
char p[GMT_LEN64] = {""};
unsigned int pos = 0;
j = 0;
while (opt->arg[j] != '+' && j < 2) { /* Process one or two selections */
switch (opt->arg[j]) {
case 'x': Ctrl->E.xbar = EBAR_NORMAL; break; /* Error bar for x */
case 'y': Ctrl->E.ybar = EBAR_NORMAL; break; /* Error bar for x */
case 'X': Ctrl->E.xbar = EBAR_WHISKER; break; /* Box-whisker for x */
case 'Y': Ctrl->E.ybar = EBAR_WHISKER; break; /* Box-whisker for y */
default:
GMT_Report (API, GMT_MSG_ERROR, "Option -E: Unrecognized error bar selection %c\n", opt->arg[j]);
n_errors++; break;
}
j++;
}
if (j == 0) Ctrl->E.xbar = Ctrl->E.ybar = EBAR_NORMAL; /* Default is both x and y error bars */
while (gmt_getmodopt (GMT, 'E', &(opt->arg[j]), "aAcnpw", &pos, p, &n_errors) && n_errors == 0) {
switch (p[0]) {
case 'A': /* Asymmetrical error bars (lower/upper values)*/
Ctrl->E.LU = true;
/* Fall through on purpose */
case 'a': /* Asymmetrical error bars (-devL/+dev_U) */
if (Ctrl->E.xbar == EBAR_NORMAL) Ctrl->E.xbar = EBAR_ASYMMETRICAL;
if (Ctrl->E.ybar == EBAR_NORMAL) Ctrl->E.ybar = EBAR_ASYMMETRICAL;
break;
case 'c': /* Control CPT usage for fill or pen or both */
switch (p[1]) {
case 'l': Ctrl->E.mode = 1; break;
case 'f': Ctrl->E.mode = 2; break;
default: Ctrl->E.mode = 3; break;
}
break;
case 'n': /* Notched box-and-whisker */
if (Ctrl->E.xbar == EBAR_WHISKER) Ctrl->E.xbar = EBAR_NOTCHED_WHISKER;
if (Ctrl->E.ybar == EBAR_WHISKER) Ctrl->E.ybar = EBAR_NOTCHED_WHISKER;
break;
case 'p': /* Error bar pen */
if (p[1] && gmt_getpen (GMT, &p[1], &Ctrl->E.pen)) {
gmt_pen_syntax (GMT, 'E', NULL, "sets error bar pen attributes", NULL, 0);
n_errors++;
}
break;
case 'w': /* Error bar cap width */
Ctrl->E.size = gmt_M_to_inch (GMT, &p[1]);
break;
default: break; /* These are caught in gmt_getmodopt so break is just for Coverity */
}
}
}
else /* Old parsing of -E[x[+]|y[+]|X|Y][n][cap][/[+|-]<pen>] */
n_errors += psxy_old_E_parser (API, Ctrl, opt->arg);
GMT_Report (API, GMT_MSG_DEBUG, "Settings for -E: x = %d y = %d\n", Ctrl->E.xbar, Ctrl->E.ybar);
break;
case 'F':
n_errors += gmt_M_repeated_module_option (API, Ctrl->F.active);
n_errors += gmt_parse_segmentize (GMT, opt->option, opt->arg, 0, &(Ctrl->F.S));
break;
case 'G': /* Set fill for symbols or polygon */
n_errors += gmt_M_repeated_module_option (API, Ctrl->G.active);
if (strncmp (opt->arg, "+z", 2U) == 0)
Ctrl->G.set_color = true;
else if (!opt->arg[0] || gmt_getfill (GMT, opt->arg, &Ctrl->G.fill)) {
gmt_fill_syntax (GMT, 'G', NULL, " "); n_errors++;
}
if (Ctrl->G.fill.rgb[0] < -4.0) Ctrl->G.sequential = irint (Ctrl->G.fill.rgb[0]+7.0);
break;
case 'H': /* Overall symbol/pen scale column provided */
n_errors += gmt_M_repeated_module_option (API, Ctrl->H.active);
if (opt->arg[0]) { /* Gave a fixed scale - no reading from file */
Ctrl->H.value = atof (opt->arg);
Ctrl->H.mode = PSXY_CONST_SCALE;
}
break;
case 'I': /* Adjust symbol color via intensity */
n_errors += gmt_M_repeated_module_option (API, Ctrl->I.active);
if (opt->arg[0])
Ctrl->I.value = atof (opt->arg);
else
Ctrl->I.mode = 1;
break;
case 'L': /* Close line segments */
n_errors += gmt_M_repeated_module_option (API, Ctrl->L.active);
if ((c = strstr (opt->arg, "+b")) != NULL) /* Build asymmetric polygon from lower and upper bounds */
Ctrl->L.anchor = PSXY_POL_ASYMM_ENV;
else if ((c = strstr (opt->arg, "+d")) != NULL) /* Build symmetric polygon from deviations about y(x) */
Ctrl->L.anchor = PSXY_POL_SYMM_DEV;
else if ((c = strstr (opt->arg, "+D")) != NULL) /* Build asymmetric polygon from deviations about y(x) */
Ctrl->L.anchor = PSXY_POL_ASYMM_DEV;
else if ((c = strstr (opt->arg, "+x")) != NULL) { /* Parse x anchors for a polygon */
switch (c[2]) {
case 'l': Ctrl->L.mode = XLO; break; /* Left side anchors */
case 'r': Ctrl->L.mode = XHI; break; /* Right side anchors */
default: Ctrl->L.mode = ZLO; Ctrl->L.value = atof (&c[2]); break; /* Arbitrary x anchor */
}
Ctrl->L.anchor = PSXY_POL_X;
}
else if ((c = strstr (opt->arg, "+y")) != NULL) { /* Parse y anchors for a polygon */
switch (c[2]) {
case 'b': Ctrl->L.mode = YLO; break; /* Bottom side anchors */
case 't': Ctrl->L.mode = YHI; break; /* Top side anchors */
default: Ctrl->L.mode = ZHI; Ctrl->L.value = atof (&c[2]); break; /* Arbitrary y anchor */
}
Ctrl->L.anchor = PSXY_POL_Y;
}
else /* Just force a closed polygon */
Ctrl->L.polygon = true;
if ((c = strstr (opt->arg, "+p")) != NULL) { /* Want outline */
if (c[2] && gmt_getpen (GMT, &c[2], &Ctrl->L.pen)) {
gmt_pen_syntax (GMT, 'W', NULL, "sets pen attributes [Default pen is %s]:", NULL, 3);
n_errors++;
}
Ctrl->L.outline = 1;
}
break;
case 'N': /* Do not skip points outside border */
n_errors += gmt_M_repeated_module_option (API, Ctrl->N.active);
if (opt->arg[0] == 'r') Ctrl->N.mode = PSXY_NO_CLIP_REPEAT;
else if (opt->arg[0] == 'c') Ctrl->N.mode = PSXY_CLIP_NO_REPEAT;
else if (opt->arg[0] == '\0') Ctrl->N.mode = PSXY_NO_CLIP_NO_REPEAT;
else {
GMT_Report (API, GMT_MSG_ERROR, "Option -N: Unrecognized argument %s\n", opt->arg);
n_errors++;
}
break;
case 'S': /* Get symbol [and size] */
n_errors += gmt_M_repeated_module_option (API, Ctrl->S.active);
Ctrl->S.arg = strdup (opt->arg);
break;
case 'T': /* Skip all input files */
n_errors += gmt_M_repeated_module_option (API, Ctrl->T.active);
n_errors += gmt_get_no_argument (GMT, opt->arg, opt->option, 0);
break;
case 'W': /* Set line attributes */
n_errors += gmt_M_repeated_module_option (API, Ctrl->W.active);
if ((c = strstr (opt->arg, "+z"))) {
Ctrl->W.set_color = true;
c[0] = '\0'; /* Chop off this modifier */
}
if (opt->arg[0] == '-' || (opt->arg[0] == '+' && opt->arg[1] != 'c')) { /* Definitively old-style args */
if (gmt_M_compat_check (API->GMT, 5)) { /* Sorry */
GMT_Report (API, GMT_MSG_ERROR, "Your -W syntax is obsolete; see program usage.\n");
n_errors++;
}
else {
GMT_Report (API, GMT_MSG_ERROR, "Your -W syntax is obsolete; see program usage.\n");
n_errors += psxy_old_W_parser (API, Ctrl, opt->arg);
}
}
else if (opt->arg[0]) {
if (gmt_getpen (GMT, opt->arg, &Ctrl->W.pen)) {
gmt_pen_syntax (GMT, 'W', NULL, "sets pen attributes [Default pen is %s]:", NULL, 11);
n_errors++;
}
}
if (Ctrl->W.pen.cptmode) Ctrl->W.cpt_effect = true;
if (c) c[0] = '+'; /* Restore */
if (Ctrl->W.pen.rgb[0] < -4.0) Ctrl->W.sequential = irint (Ctrl->W.pen.rgb[0] + 7.0);
break;
case 'Z': /* Get value for CPT lookup */
n_errors += gmt_M_repeated_module_option (API, Ctrl->Z.active);
if (gmt_not_numeric (GMT, opt->arg) && !gmt_access (GMT, opt->arg, R_OK)) { /* Got a file */
Ctrl->Z.file = strdup (opt->arg);
n_errors += gmt_M_check_condition (GMT, Ctrl->Z.file && gmt_access (GMT, Ctrl->Z.file, R_OK),
"Option -Z: Cannot read file %s!\n", Ctrl->Z.file);
}
else { /* Got a value */
ztype = (strchr (opt->arg, 'T')) ? GMT_IS_ABSTIME : gmt_M_type (GMT, GMT_IN, GMT_Z);
n_errors += gmt_verify_expectations (GMT, ztype, gmt_scanf_arg (GMT, opt->arg, ztype, false, &Ctrl->Z.value), opt->arg);
}
break;
default: /* Report bad options */