Function gmtplot_vertical_wall

src/gmt_plot.c:3152–3176

}

GMT_LOCAL void gmtplot_vertical_wall (struct GMT_CTRL *GMT, struct PSL_CTRL *PSL, int quadrant, double *nesw, bool back, unsigned int mode3d) {
	/* Draws the two vertical walls in the back of the 3-D plot */
	int plane = (quadrant + 1) % 2;	/* Black magic that gives us GMT_X (for yz plane) or GMT_Y (for xz plane) */
	double xx[4], yy[4];
	gmt_plane_perspective (GMT, plane, nesw[quadrant % 4]);
	/* Assign the coordinates of the four corners of the wall (hence assumed to be rectangular) */
	xx[0] = xx[1] = nesw[(quadrant+1)%4];	xx[2] = xx[3] = nesw[(quadrant+3)%4];
	yy[0] = yy[3] = GMT->current.proj.zmin;	yy[1] = yy[2] = GMT->current.proj.zmax;
	if (mode3d & GMT_3D_WALL && back) {	/* Called for one of the back walls and we wish to draw it */
		int wplane = 1 - plane;	/* Get integer for the correct plain side */
		if (GMT->current.map.frame.paint[wplane]) {	/* First paint the back wall, with no outline drawn */
			PSL_setfill (PSL, GMT->current.map.frame.fill[wplane].rgb, 0);
			PSL_plotbox (PSL, nesw[(quadrant+1)%4], GMT->current.proj.zmin, nesw[(quadrant+3)%4], GMT->current.proj.zmax);
		}
		if (back)	/* Gridlines was requested, so draw those now */
			gmtplot_z_gridlines (GMT, PSL, GMT->common.R.wesn[ZLO], GMT->common.R.wesn[ZHI], plane, mode3d, quadrant);

		if (GMT->current.map.frame.draw_wall) {	/* We wanted the outline of the back-wall drawn, do now to overwrite any perimeter gridlines */
			gmt_setpen (GMT, &GMT->current.map.frame.pen);
			PSL_plotline (PSL, xx, yy, 4, PSL_MOVE|PSL_STROKE);
		}
	}
	else if (back)	/* Get here if no back-walls were filled our outlined */
		gmtplot_z_gridlines (GMT, PSL, GMT->common.R.wesn[ZLO], GMT->common.R.wesn[ZHI], plane, mode3d, quadrant);
}

GMT_LOCAL void gmtplot_cube_box (struct GMT_CTRL *GMT, struct PSL_CTRL *PSL, int quadrant, double *nesw) {
	/* Draws the 3-D cube lines */