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-rw-r--r--src/nanolight.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/nanolight.c b/src/nanolight.c
index 40c8bd1..06012e8 100644
--- a/src/nanolight.c
+++ b/src/nanolight.c
@@ -119,7 +119,7 @@ static void draw_fixture(cairo_t *cr, PangoContext *pc, PangoFontDescription *fo
cairo_stroke(cr);
}
if ( find_attribute(fix, ATT_TILT, &n) ) {
- double y = h*fix->attr_vals[n] / 65535;
+ double y = h*(1.0 - (double)fix->attr_vals[n] / 65535);
cairo_move_to(cr, -1.0, y);
cairo_line_to(cr, w+2.0, y);
cairo_set_source_rgb(cr, 1.0, 0.0, 0.0);