Function gmtplot_get_annot_offset

src/gmt_plot.c:1779–1802

! . */

/*! . */
GMT_LOCAL double gmtplot_get_annot_offset (struct GMT_CTRL *GMT, bool *flip, unsigned int level) {
	/* Return offset in inches for text annotation.  If annotation
	 * is to be placed 'inside' the map, set flip to true */

	double a = GMT->current.setting.map_annot_offset[level];
	if (GMT->current.setting.map_frame_type & GMT_IS_INSIDE) {	/* Inside annotation */
		a = -fabs (a);
		a -= fabs (GMT->current.setting.map_tick_length[GMT_PRIMARY]);
		*flip = true;
	}
	else if (a >= 0.0) {	/* Outside annotation */
		double dist = GMT->current.setting.map_tick_length[GMT_PRIMARY];	/* Length of tickmark (could be negative) */
		/* For fancy frame we must consider that the frame width might exceed the ticklength */
		if (GMT->current.setting.map_frame_type & GMT_IS_FANCY && GMT->current.setting.map_frame_width > dist) dist = GMT->current.setting.map_frame_width;
		if (dist > 0.0) a += dist;
		*flip = false;
	}
	else {		/* Inside annotation via negative tick length */
		if (GMT->current.setting.map_tick_length[GMT_PRIMARY] < 0.0) a += GMT->current.setting.map_tick_length[GMT_PRIMARY];
		*flip = true;
	}

	return (a);
}

GMT_LOCAL double gmtplot_curved_boundary_offset (struct GMT_CTRL *GMT, double lon, double lat, int type, unsigned int level) {
	/* For global curved maps like Mollweide etc, the parallel labeling occurs against an increasingly