draw_thick_line: Bound thickness by 1.0 below

[sgt-puzzles.git] / devel.but

diff --git a/devel.but b/devel.but
index 6a74ed99fc6b24aa94564c68a8041aa4178fa6f2..e59b2a265ce8c8cd3c04f680b883bc8ef5c9c621 100644 (file)
--- a/devel.but
+++ b/devel.but
@@ -1928,6 +1928,9 @@ Indeed, even horizontal or vertical lines may be anti-aliased.
 
 This function may be used for both drawing and printing.
 
+If the xpecified thickness is less than 1.0, 1.0 is used.
+This ensures that thin lines are visible even at small scales.
+
 \S{drawing-draw-text} \cw{draw_text()}
 
 \c void draw_text(drawing *dr, int x, int y, int fonttype,