raster3d/window.c

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#include <stdio.h>
#include <grass/gis.h>
#include <grass/raster3d.h>
#include "raster3d_intern.h"
 
/*---------------------------------------------------------------------------*/
 
RASTER3D_Region g3d_window;
 
/*---------------------------------------------------------------------------*/
 
/*!
 * \brief
 *
 * Sets the window for <em>map</em> to <em>window</em>.
 * Can be used multiple times for the same map.
 *
 *  \param map
 *  \param window
 *  \return void
 */
void Rast3d_set_window_map(RASTER3D_Map *map, RASTER3D_Region *window)
{
    Rast3d_region_copy(&(map->window), window);
    Rast3d_adjust_region(&(map->window));
}
 
/*---------------------------------------------------------------------------*/
 
/*!
 * \brief
 *
 * Sets the default window used for every map opened later in the program.
 * Can be used multiple times in the same program.
 *
 *  \param window
 *  \return void
 */
void Rast3d_set_window(RASTER3D_Region *window)
{
    Rast3d_region_copy(&g3d_window, window);
    Rast3d_adjust_region(&g3d_window);
}
 
/*---------------------------------------------------------------------------*/
 
/*!
 * \brief
 *
 *  Stores the current default window in <em>window</em>.
 *
 *  \param window
 *  \return void
 */
void Rast3d_get_window(RASTER3D_Region *window)
{
    Rast3d_region_copy(window, &g3d_window);
}
 
/*---------------------------------------------------------------------------*/
 
RASTER3D_Region *Rast3d_window_ptr(void)
{
    return &g3d_window;
}
 
/*---------------------------------------------------------------------------*/
 
/*!
 * \brief
 *
 *  Returns 1 if window-coordinates <em>(north, east and top)</em> are
 * inside the window of <em>map</em>. Returns 0 otherwise.
 *
 *  \param map
 *  \param north
 *  \param east
 *  \param top
 *  \return int
 */
int Rast3d_isValidLocationWindow(RASTER3D_Map *map, double north, double east,
                                 double top)
{
    return ((north >= map->window.south) && (north <= map->window.north) &&
            (east >= map->window.west) && (east <= map->window.east) &&
            (((top >= map->window.bottom) && (top <= map->window.top)) ||
             ((top <= map->window.bottom) && (top >= map->window.top))));
}