int combine(char **infiles, int n_inputs, char *outfile)
{
int ret, ii, size_x, size_y;
double start_x, start_y;
double per_x, per_y;
// Determine image parameters
determine_extents(infiles, n_inputs, &size_x, &size_y, &start_x, &start_y,
&per_x, &per_y);
asfPrintStatus("\nCombined image size: %dx%d LxS\n", size_y, size_x);
asfPrintStatus(" Start X,Y: %f,%f\n", start_x, start_y);
asfPrintStatus(" Per X,Y: %lg,%lg\n", per_x, per_y);
// float_image will handle cacheing of the large output image
FloatImage *out = float_image_new(size_x, size_y);
// loop over the input images, last to first, so that the files listed
// first have their pixels overwrite files listed later on the command line
for (ii=n_inputs-1; ii>=0; ii--) {
asfPrintStatus("\nProcessing %s... \n", infiles[ii]);
// Add this image's pixels
add_pixels(out, infiles[ii], start_x, start_y, per_x, per_y);
}
asfPrintStatus("Writing metadata.\n");
meta_parameters *meta_out = meta_read(infiles[0]);
meta_out->projection->startX = start_x;
meta_out->projection->startY = start_y;
meta_out->general->line_count = size_y;
meta_out->general->sample_count = size_x;
meta_write(meta_out, outfile);
meta_free(meta_out);
char *outfile_full = appendExt(outfile, ".img");
asfPrintStatus("Saving image (%s).\n", outfile_full);
ret = float_image_store(out, outfile_full, fibo_be);
if (ret!=0)
asfPrintError("Error storing output image!\n");
float_image_free(out);
free(outfile_full);
return ret;
}
int main(int argc, char *argv[])
{
handle_common_asf_args(&argc, &argv, ASF_NAME_STRING);
if (argc>1 && (strcmp(argv[1], "-help")==0 || strcmp(argv[1],"--help")==0))
help();
if (argc<3) usage();
double background_val=0;
extract_double_options(&argc, &argv, &background_val, "-background",
"--background", "-b", NULL);
char *preference = (char *) MALLOC(sizeof(char)*50);
sprintf(preference, "");
extract_string_options(&argc, &argv, preference, "-preference",
"--preference", "-p", NULL);
if (strlen(preference) > 0 &&
strcmp_case(preference, "north") != 0 &&
strcmp_case(preference, "south") != 0 &&
strcmp_case(preference, "east") != 0 &&
strcmp_case(preference, "west") != 0 &&
strcmp_case(preference, "old") != 0 &&
strcmp_case(preference, "new") != 0)
asfPrintError("Can't handle this preference (%s)!\n", preference);
char *outfile = argv[1];
char **infiles = &argv[2];
int n_inputs = argc - 2;
int ret, i, size_x, size_y, n_bands;
double start_x, start_y;
double per_x, per_y;
asfSplashScreen(argc, argv);
asfPrintStatus("Combining %d files to produce: %s\n", n_inputs, outfile);
// Sort the input files, in case we have a different preference
if (strlen(preference) > 0)
sort_input_preference(infiles, n_inputs, preference);
asfPrintStatus("Input files:\n");
for (i = 0; i < n_inputs; ++i)
asfPrintStatus(" %d: %s%s\n", i+1, infiles[i], i==0 ? " (reference)" : "");
// determine image parameters
determine_extents(infiles, n_inputs, &size_x, &size_y, &n_bands,
&start_x, &start_y, &per_x, &per_y);
// float_image will handle cacheing of the large output image
asfPrintStatus("\nAllocating space for output image ...\n");
BandedFloatImage *out;
if (background_val != 0)
out = banded_float_image_new_with_value(n_bands, size_x, size_y,
(float)background_val);
else
out = banded_float_image_new(n_bands, size_x, size_y);
asfPrintStatus("\nCombined image size: %dx%d LxS\n", size_y, size_x);
asfPrintStatus(" Start X,Y: %f,%f\n", start_x, start_y);
asfPrintStatus(" Per X,Y: %.2f,%.2f\n", per_x, per_y);
// loop over the input images, last to first, so that the files listed
// first have their pixels overwrite files listed later on the command line
int n = argc-1;
do {
char *p = argv[n];
if (p && strlen(p)>0) {
asfPrintStatus("\nProcessing %s... \n", p);
// add this image's pixels
add_pixels(out, p, size_x, size_y, start_x, start_y, per_x, per_y);
}
} while (--n>1);
asfPrintStatus("Combined all images, saving result.\n");
// first the metadata -- use infile1's metadata as the template
asfPrintStatus("Writing metadata.\n");
meta_parameters *meta_out = meta_read(argv[2]);
meta_out->projection->startX = start_x;
meta_out->projection->startY = start_y;
meta_out->general->line_count = size_y;
meta_out->general->sample_count = size_x;
// Update location block
update_location_block(meta_out);
meta_write(meta_out, outfile);
char *outfile_full = appendExt(outfile, ".img");
ret = banded_float_image_store(out, outfile_full, fibo_be);
if (ret!=0) asfPrintError("Error storing output image!\n");
banded_float_image_free(out);
free(outfile_full);
meta_free(meta_out);
asfPrintStatus("Done.\n");
return 0;
}