diff options
Diffstat (limited to 'libs')
| -rw-r--r-- | libs/canvas/framed_curve.cc | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libs/canvas/framed_curve.cc b/libs/canvas/framed_curve.cc index 6bd2f740b0..e8dee85c68 100644 --- a/libs/canvas/framed_curve.cc +++ b/libs/canvas/framed_curve.cc @@ -55,7 +55,7 @@ FramedCurve::set_points_per_segment (uint32_t n) just need to schedule a redraw rather than notify the parent of any changes */ - points_per_segment = n; + points_per_segment = max (n, (uint32_t) 3); interpolate (); redraw (); } @@ -187,13 +187,13 @@ FramedCurve::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) c Points::size_type left = 0; Points::size_type right = n_samples; - for (Points::size_type idx = 0; idx < n_samples; ++idx) { + for (Points::size_type idx = 0; idx < n_samples - 1; ++idx) { window_space = item_to_window (Duple (samples[idx].x, 0.0)); if (window_space.x >= draw.x0) break; left = idx; } - for (Points::size_type idx = n_samples; idx > left + 2; --idx) { + for (Points::size_type idx = n_samples; idx > left + 1; --idx) { window_space = item_to_window (Duple (samples[idx].x, 0.0)); if (window_space.x <= draw.x1) break; right = idx; |