Function gmt_contlabel_plot

src/gmt_plot.c:7966–8009

}

void gmt_contlabel_plot (struct GMT_CTRL *GMT, struct GMT_CONTOUR *G) {
	unsigned int i, mode;
	bool no_labels;
	struct PSL_CTRL *PSL= GMT->PSL;

	if (!G->n_segments) return;	/* Northing to do here */

	/* See if there are labels at all */
	for (i = 0, no_labels = true; i < G->n_segments && no_labels; i++)
		if (G->segment[i]->n_labels) no_labels = false;

	if (!G->delay) PSL_command (GMT->PSL, "V\n");	/* Plotting something, so protect current graphics state */

	if (G->debug) gmtplot_contlabel_debug (GMT, PSL, G);		/* Debugging lines and points */

	if (no_labels) {	/* No labels, just draw lines; no clipping required */
		gmtplot_contlabel_drawlines (GMT, PSL, G, 0);
		PSL_command (GMT->PSL, "U\n");	/* Restore to where we were */
		return;
	}

	PSL_settextmode (PSL, PSL_TXTMODE_MINUS);	/* Replace hyphens with minus signs */
	gmt_setfont (GMT, &G->font_label);

	if (G->must_clip) {		/* Transparent boxes means we must set up plot text, then set up clip paths, then draw lines, then deactivate clipping */
		/* Place PSL variables, plot labels, set up clip paths, draw lines */
		mode = PSL_TXT_INIT | PSL_TXT_SHOW | PSL_TXT_CLIP_ON;
		if (G->draw) mode |= PSL_TXT_DRAW;
		if (!G->delay) mode |= PSL_TXT_CLIP_OFF;	/* Also turn off clip path when done */
		gmtplot_contlabel_plotlabels (GMT, PSL, G, mode);	/* Take the above actions */
	}
	else {	/* Opaque text boxes */
		mode = PSL_TXT_INIT;	/* Plot text */
		if (G->draw) mode |= PSL_TXT_DRAW;	/* Draw lines */
		gmtplot_contlabel_plotlabels (GMT, PSL, G, mode);	/* Place PSL variables and draw lines */
		mode = PSL_TXT_SHOW;				/* Plot text */
		if (G->delay) mode |= PSL_TXT_CLIP_ON;		/* Also turn on clip path after done */
		gmtplot_contlabel_plotlabels (GMT, PSL, G, mode);	/* Plot labels and possibly turn on clipping if delay */
	}
	PSL_command (GMT->PSL, "[] 0 B\n");	/* Ensure no pen textures remain in effect */
	PSL_settextmode (PSL, PSL_TXTMODE_HYPHEN);	/* Back to leave as is */

	if (!G->delay) PSL_command (GMT->PSL, "U\n");	/* Restore to where we were */
}

#if 0        	// We have no current need for this anymore
GMT_LOCAL void gmtplot_wipe_substr(char *str1, char *str2) {