Получение ширины текущей растровой карты в блоках
#include <gis/gis_raw.h>int gis_data_raw_get_raster_width_in_blocks( const gis_data_raw_context_t ctx, uint32_t *pWidth );
gishelper
Функция возвращает ширину текущей растровой карты в блоках.
gis_core_connection_t connection;gis_core_request_parameters_t map;gis_data_raw_context_t raw_ctx;gis_core_link_init( &connection );gis_core_link_connect( &connection, 777 );gis_core_databuffer_attach( &connection );gis_core_request_parameters_init( &map );gis_core_databuffer_data_request( &connection, &map, 1 );gis_data_raw_ctx_alloc( &raw_ctx );gis_data_raw_ctx_import_databuffer( raw_ctx );gis_data_raw_select_first_map( raw_ctx );do {if ( GIS_IS_CORE_MAP_DATA_SOURCE_VECTOR( gis_data_raw_map_get_data_source( raw_ctx ) ) )continue;uint32_t width = 0;if ( gis_data_raw_get_raster_width_in_blocks( raw_ctx, &width ) != EOK ) {gis_data_raw_ctx_free( &raw_ctx );gis_core_databuffer_detach();gis_core_link_destroy( &connection, true );return 1;}if ( width != 5 ){printf( "Incorrect width.\n" );gis_data_raw_ctx_free( &raw_ctx );gis_core_databuffer_detach();gis_core_link_destroy( &connection, true );return 1;}} while ( gis_data_raw_select_next_map( raw_ctx ) == EOK);gis_data_raw_ctx_free( &raw_ctx );gis_core_databuffer_detach();gis_core_link_destroy( &connection, true );
ПК ЦКИ для ЗОСРВ «Нейтрино»
gis_data_raw_context_t, gis_data_raw_get_raster_height_in_blocks(), gis_data_raw_get_raster_width_in_elements(), gis_data_raw_get_raster_height_in_elements().
1.1.0
Предыдущий раздел: Описание API картографического фреймворка