display/setup.c File Reference

Display Driver - setup. More...

#include <string.h>
#include <grass/gis.h>
#include <grass/raster.h>
#include <grass/display.h>
#include "driver.h"

Include dependency graph for display/setup.c:

Go to the source code of this file.

Functions
void	D_setup (int clear)
	Graphics frame setup. More...
void	D_setup_unity (int clear)
	Graphics frame setup. More...
void	D_setup2 (int clear, int fit, double st, double sb, double sl, double sr)
	Sets source coordinate system. More...
const char *	D_get_file (void)
	Get driver output file. More...

Detailed Description

Display Driver - setup.

(C) 2006-2011 by the GRASS Development Team

This program is free software under the GNU General Public License (>=v2). Read the file COPYING that comes with GRASS for details.

Author

Glynn Clements <glynn gclements.plus.com> (original contributor)

Huidae Cho <grass4u gmail.com>

Definition in file display/setup.c.

Function Documentation

D_get_file()

const char* D_get_file

(

void

)

Get driver output file.

Returns

file name or NULL if not defined

Definition at line 141 of file display/setup.c.

References COM_Graph_get_file().

D_setup()

void D_setup

(

int

clear

)

Graphics frame setup.

This is a high level D call. It does a full setup for the current graphics frame.

Note: Connection to driver must already be made.

Sets the source coordinate system to the current region, and adjusts the destination coordinate system to preserve the aspect ratio.

Performs a full setup for the current graphics frame:

• Makes sure there is a current graphics frame (will create a full-screen one, if not);
• Sets the region coordinates so that the graphics frame and the active module region agree (may change active module region to do this); and
• Performs graphic frame/region coordinate conversion initialization.

If clear is true, the frame is cleared (same as running d.erase.) Otherwise, it is not cleared.

Parameters

clear

1 to clear frame (visually and coordinates)

Definition at line 46 of file display/setup.c.

D_setup2()

void D_setup2	(	int	clear,
		int	fit,
		double	st,
		double	sb,
		double	sl,
		double	sr
	)

Sets source coordinate system.

Sets the source coordinate system to its arguments, and if the fit argument is non-zero, adjusts the destination coordinate system to preserve the aspect ratio.

If clear is true, the frame is cleared (same as running d.erase). Otherwise, it is not cleared.

Parameters

clear	non-zero code to clear the frame
fit	non-zero code to adjust destination coordinate system
s_top
s_bottom
s_left
s_right

Definition at line 114 of file display/setup.c.

References D_erase(), D_fit_d_to_u(), D_get_frame(), D_set_clip_window_to_map_window(), D_set_clip_window_to_screen_window(), D_set_dst(), D_set_src(), D_update_conversions(), DEFAULT_BG_COLOR, and st.

D_setup_unity()

void D_setup_unity

(

int

clear

)

Graphics frame setup.

Sets the source coordinate system to match the destination coordinate system, so that D_* functions use the same coordinate system as R_* functions.

If clear is true, the frame is cleared (same as running d.erase). Otherwise, it is not cleared.

Parameters

clear

non-zero code to clear the frame

Definition at line 78 of file display/setup.c.

References D_erase(), D_get_frame(), D_set_clip_window_to_map_window(), D_set_clip_window_to_screen_window(), D_set_dst(), D_set_src(), D_update_conversions(), and DEFAULT_BG_COLOR.