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-rw-r--r--src/GipfelWidget.cxx4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/GipfelWidget.cxx b/src/GipfelWidget.cxx
index cb0b3dc..8303e46 100644
--- a/src/GipfelWidget.cxx
+++ b/src/GipfelWidget.cxx
@@ -76,6 +76,8 @@ GipfelWidget::load_image(char *file) {
img_file = strdup(file);
+ known_hills->clear();
+
h(img->h());
w(img->w());
@@ -117,7 +119,7 @@ GipfelWidget::load_image(char *file) {
}
fl = md->get_focal_length_35mm();
- if (isnan(fl)) {
+ if (isnan(fl) || fl == 0.0) {
set_focal_length_35mm(35.0);
have_gipfel_info = 0;
} else {