[gnuastro-commits] master a542541: Crop: small limit of check for wcsmode crop decreased to 1

[Mohammad Akhlaghi]

branch: master
commit a5425413f607f87c03021a670f18e100ae6b7ef6
Author: Mohammad Akhlaghi <mohammad@akhlaghi.org>
Commit: Mohammad Akhlaghi <mohammad@akhlaghi.org>

    Crop: small limit of check for wcsmode crop decreased to 1
    
    When Crop is in WCS mode, it will check to see if the given width is
    reasonable. This is because it often happens that people confuse degrees
    with arcseconds or vice-versa. There are two limits that cause Crop to
    abort: a smaller limit and a larger limit.
    
    Until now, the smaller width (after conversion to pixels) was 3 pixels. But
    3 pixels is not unreasonable, 1 pixel is. With this commit, if the width is
    smaller than 1 pixel an error is printed.
---
 bin/crop/ui.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bin/crop/ui.c b/bin/crop/ui.c
index 8cda243..84096ca 100644
--- a/bin/crop/ui.c
+++ b/bin/crop/ui.c
@@ -554,7 +554,7 @@ ui_set_img_sizes(struct cropparams *p)
         {
           /* Convert the width in units of the input's WCS into pixels. */
           pwidth = warray[i]/p->pixscale[i];
-          if(pwidth<3 || pwidth>50000)
+          if(pwidth<1 || pwidth>50000)
             error(EXIT_FAILURE, 0, "value %g (requested width along "
                   "dimension %zu) translates to %.0f pixels on this "
                   "dataset. This is probably not what you wanted. Note "