example2.c

/*------------------------------------------------------------------------------
       Filename: example2.c
       
       Description: Loads example2-input.gbx, duplicates it and offsets it to the
              right by the width of the layer, merges the two images, and exports
              the merged image back to another RS274X file. Note: this example
              code uses the gerbv_image_t interface as opposed to the
              gerb_project_t interface.

       Instructions: Make sure you are in the example-code directory, and compile
              this program with the following command:

       gcc -Wall -g `pkg-config --cflags gtk+-2.0 glib-2.0 libgerbv` `pkg-config \
--libs gtk+-2.0 glib-2.0 libgerbv` example2.c -o example2

       Run with the following command:
       
       ./example2

------------------------------------------------------------------------------*/

#include "gerbv.h"

int
main(int argc, char *argv[]) {
       gerbv_image_t *originalImage, *duplicatedImage;
       
       /* parse and create the first image (by default, the image will not be
          offset and will be in its true position */
       originalImage = gerbv_create_rs274x_image_from_filename ("example2-input.gbx");
       
       /* make sure we parsed the file */
       if (originalImage == NULL)
              g_error ("There was an error parsing the file.");
       
       /* duplicate the image and place it into a new gerbv_image_t */
       duplicatedImage = gerbv_image_duplicate_image (originalImage, NULL);
       
       /* create a transormation for the second image, and offset it the width
          of the first image in the x direction */
       gerbv_user_transformation_t newTransformation = {originalImage->info->max_x -
                            originalImage->info->min_x,
                            0, 0, 0, FALSE};

       /* merge the duplicated image onto the original image, but use the new
          offset to move the new copy to the right */
       gerbv_image_copy_image (duplicatedImage, &newTransformation, originalImage);
       
       /* export the merged image to a new rs274x file */
       gerbv_export_rs274x_file_from_image ("example2-output.gbx",    originalImage);

       /* destroy all created structures */
       gerbv_destroy_image (originalImage);
       gerbv_destroy_image (duplicatedImage);
       return 0;
}