C++ (Cpp) Rast3d_mask_d_select Examples

Example #1

File: main.c Project: caomw/grass

static void makeMask(char *name, d_Mask * maskRules)
{
    void *map, *mask;
    RASTER3D_Region region;
    int tileX, tileY, tileZ, x, y, z, cacheSize;
    double value;
    float floatNull;

    cacheSize = Rast3d_cache_size_encode(RASTER3D_USE_CACHE_XY, 1);

    if (NULL == G_find_raster3d(name, ""))
	Rast3d_fatal_error(_("3D raster map <%s> not found"), name);

    map = Rast3d_open_cell_old(name, G_mapset(), RASTER3D_DEFAULT_WINDOW,
			  DCELL_TYPE, cacheSize);

    if (map == NULL)
	Rast3d_fatal_error(_("Unable to open 3D raster map <%s>"), name);

    Rast3d_get_region_struct_map(map, &region);

    Rast3d_get_tile_dimensions_map(map, &tileX, &tileY, &tileZ);

    mask = Rast3d_open_new_param(Rast3d_mask_file(), FCELL_TYPE, cacheSize,
			    &region, FCELL_TYPE, RASTER3D_COMPRESSION, 0,
			    tileX, tileY, tileZ);

    if (mask == NULL)
	Rast3d_fatal_error(_("Unable to open 3D raster mask file"));

    Rast3d_min_unlocked(map, RASTER3D_USE_CACHE_X);
    Rast3d_autolock_on(map);
    Rast3d_unlock_all(map);
    Rast3d_min_unlocked(mask, RASTER3D_USE_CACHE_X);
    Rast3d_autolock_on(mask);
    Rast3d_unlock_all(mask);

    Rast3d_set_null_value(&floatNull, 1, FCELL_TYPE);

    for (z = 0; z < region.depths; z++) {
	if ((z % tileZ) == 0) {
	    Rast3d_unlock_all(map);
	    Rast3d_unlock_all(mask);
	}
    
	for (y = 0; y < region.rows; y++)	/* We count from north to south in the cube coordinate system */
	    for (x = 0; x < region.cols; x++) {
		value = Rast3d_get_double_region(map, x, y, z);
		if (Rast3d_mask_d_select((DCELL *) & value, maskRules))
		    Rast3d_put_float(mask, x, y, z, (float)floatNull);	/* mask-out value */
		else
		    Rast3d_put_float(mask, x, y, z, (float)0.0);	/* not mask-out value */
	    }
	if ((z % tileZ) == 0) {
	    if (!Rast3d_flush_tiles_in_cube
		(mask, 0, 0, MAX(0, z - tileZ), region.rows - 1,
		 region.cols - 1, z))
		Rast3d_fatal_error(_("makeMask: error flushing tiles in cube"));
	}
    }

    if (!Rast3d_flush_all_tiles(mask))
	Rast3d_fatal_error(_("makeMask: error flushing all tiles"));

    Rast3d_autolock_off(map);
    Rast3d_unlock_all(map);
    Rast3d_autolock_off(mask);
    Rast3d_unlock_all(mask);

    if (!Rast3d_close(mask))
	Rast3d_fatal_error(_("Unable to close 3D raster mask file"));
    if (!Rast3d_close(map))
	Rast3d_fatal_error(_("Unable to close raster map <%s>"), name);
}

Example #2

File: main.c Project: AsherBond/MondocosmOS

static void
modifyNull(char *name, d_Mask * maskRules, int changeNull, double newNullVal)
{
    void *map, *mapOut;
    RASTER3D_Region region;
    int tileX, tileY, tileZ, x, y, z;
    double value;
    int doCompress, doLzw, doRle, precision;
    int cacheSize;

    cacheSize = Rast3d_cache_size_encode(RASTER3D_USE_CACHE_XY, 1);

    if (NULL == G_find_raster3d(name, ""))
	Rast3d_fatal_error(_("3D raster map <%s> not found"), name);

    fprintf(stderr, "name %s Mapset %s \n", name, G_mapset());
    map = Rast3d_open_cell_old(name, G_mapset(), RASTER3D_DEFAULT_WINDOW,
			  DCELL_TYPE, cacheSize);

    if (map == NULL)
	Rast3d_fatal_error(_("Unable to open 3D raster map <%s>"), name);

    Rast3d_get_region_struct_map(map, &region);
    Rast3d_get_tile_dimensions_map(map, &tileX, &tileY, &tileZ);

    Rast3d_get_compression_mode(&doCompress, &doLzw, &doRle, &precision);

    mapOut = Rast3d_open_new_param(name, DCELL_TYPE, RASTER3D_USE_CACHE_XY,
			      &region, Rast3d_file_type_map(map),
			      doLzw, doRle, Rast3d_tile_precision_map(map), tileX,
			      tileY, tileZ);
    if (mapOut == NULL)
	Rast3d_fatal_error(_("modifyNull: error opening tmp file"));

    Rast3d_min_unlocked(map, RASTER3D_USE_CACHE_X);
    Rast3d_autolock_on(map);
    Rast3d_unlock_all(map);
    Rast3d_min_unlocked(mapOut, RASTER3D_USE_CACHE_X);
    Rast3d_autolock_on(mapOut);
    Rast3d_unlock_all(mapOut);

	for (z = 0; z < region.depths; z++) {
	if ((z % tileZ) == 0) {
	    Rast3d_unlock_all(map);
	    Rast3d_unlock_all(mapOut);
	}
	for (y = 0; y < region.rows; y++)
	    for (x = 0; x < region.cols; x++) {

		value = Rast3d_get_double_region(map, x, y, z);

		if (Rast3d_is_null_value_num(&value, DCELL_TYPE)) {
		    if (changeNull) {
			value = newNullVal;
		    }
		}
		else if (Rast3d_mask_d_select((DCELL *) & value, maskRules)) {
		    Rast3d_set_null_value(&value, 1, DCELL_TYPE);
		}

		Rast3d_put_double(mapOut, x, y, z, value);
	    }
	if ((z % tileZ) == 0) {
	    if (!Rast3d_flush_tiles_in_cube
		(mapOut, 0, 0, MAX(0, z - tileZ), region.rows - 1,
		 region.cols - 1, z))
		Rast3d_fatal_error(_("modifyNull: error flushing tiles in cube"));
	}
    }

    if (!Rast3d_flush_all_tiles(mapOut))
	Rast3d_fatal_error(_("modifyNull: error flushing all tiles"));

    Rast3d_autolock_off(map);
    Rast3d_unlock_all(map);
    Rast3d_autolock_off(mapOut);
    Rast3d_unlock_all(mapOut);

    if (!Rast3d_close(map))
	Rast3d_fatal_error(_("Unable to close raster map"));
    if (!Rast3d_close(mapOut))
	Rast3d_fatal_error(_("modifyNull: Unable to close tmp file"));
}