GRASS GIS 7 Programmer's Manual
7.8.2(2019)-exported
gis/set_window.c
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/*!
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\file lib/gis/set_window.c
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\brief GIS Library - Set window (map region)
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(C) 2001-2009, 2011 by the GRASS Development Team
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This program is free software under the GNU General Public License
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(>=v2). Read the file COPYING that comes with GRASS for details.
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\author Original author CERL
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*/
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#include <grass/gis.h>
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#include <grass/glocale.h>
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#include "
G.h
"
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#include "gis_local_proto.h"
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/*!
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\brief Get the current working window (region)
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The current working window values are returned in the structure
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\p window.
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Previous calls to G_set_window() affects values returned by this function.
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Previous calls to G_put_window() affects values returned by this function
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only if the current working window is not initialized.
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\param[out] window pointer to window structure to be set
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\sa G_set_window(), G_get_window()
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*/
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void
G_get_set_window
(
struct
Cell_head *window)
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{
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G__init_window
();
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*window =
G__
.
window
;
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}
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/*!
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\brief Establishes \p window as the current working window (region).
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This function adjusts the \p window before setting the region
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so you don't have to call G_adjust_Cell_head().
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\note Only the current process is affected.
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\param window window to become operative window
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\sa G_get_set_window(), G_put_window()
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*/
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void
G_set_window
(
struct
Cell_head *window)
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{
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/* adjust window, check for valid window */
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G_adjust_Cell_head
(window, 0, 0);
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/* copy the window to the current window */
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G__
.
window
= *window;
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G__
.
window_set
= 1;
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}
G__::window_set
int window_set
Definition:
G.h:7
G_adjust_Cell_head
void G_adjust_Cell_head(struct Cell_head *cellhd, int row_flag, int col_flag)
Adjust cell header.
Definition:
adj_cellhd.c:51
G_set_window
void G_set_window(struct Cell_head *window)
Establishes window as the current working window (region).
Definition:
gis/set_window.c:53
G.h
G__::window
struct Cell_head window
Definition:
G.h:6
G_get_set_window
void G_get_set_window(struct Cell_head *window)
Get the current working window (region)
Definition:
gis/set_window.c:35
G__
Definition:
G.h:4
G__init_window
void G__init_window(void)
Initialize window (region).
Definition:
window_map.c:76
gis
set_window.c
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