1 files changed, 18 insertions, 0 deletions
diff --git a/libcrystfel/src/image.c b/libcrystfel/src/image.c
index 093e20f2..6e4fd40a 100644
--- a/libcrystfel/src/image.c
+++ b/libcrystfel/src/image.c
@@ -159,3 +159,21 @@ void image_remove_feature(ImageFeatureList *flist, int idx)
 {
 	flist->features[idx].valid = 0;
 }
+
+
+void image_add_crystal(struct image *image, Crystal *cryst)
+{
+	Crystal **crs;
+	int n;
+
+	n = image->n_crystals;
+	crs = realloc(image->crystals, (n+1)*sizeof(Crystal *));
+	if ( crs == NULL ) {
+		ERROR("Failed to allocate memory for crystals.\n");
+		return;
+	}
+
+	crs[n] = cryst;
+	image->crystals = crs;
+	image->n_crystals = n+1;
+}