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| author | Diederik van Lierop <mail@diedenrezi.nl> | 2019-04-30 20:40:22 +0000 |
|---|---|---|
| committer | Diederik van Lierop <mail@diedenrezi.nl> | 2019-04-30 20:40:22 +0000 |
| commit | 2713ccbc67cb10c169fa84b3641d1747c00a5790 (patch) | |
| tree | c19639f3fa62907a408841b22a01227ab3f10748 /src/display/canvas-axonomgrid.cpp | |
| parent | Update macOS build pipeline (diff) | |
| download | inkscape-2713ccbc67cb10c169fa84b3641d1747c00a5790.tar.gz inkscape-2713ccbc67cb10c169fa84b3641d1747c00a5790.zip | |
Fix disappearing and antialiasing of grid lines
Diffstat (limited to 'src/display/canvas-axonomgrid.cpp')
| -rw-r--r-- | src/display/canvas-axonomgrid.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/display/canvas-axonomgrid.cpp b/src/display/canvas-axonomgrid.cpp index 2e4a20d6a..9f423b2ab 100644 --- a/src/display/canvas-axonomgrid.cpp +++ b/src/display/canvas-axonomgrid.cpp @@ -529,7 +529,9 @@ CanvasAxonomGrid::Render (SPCanvasBuf *buf) gint const ylinestart = round((ystart_x_sc - ow[Geom::X]) / spacing_ylines); gint ylinenum = ylinestart; for (gdouble x = ystart_x_sc; x < buf->rect.right(); x += spacing_ylines, ylinenum++) { - gint const x0 = round(x); + gint const x0 = floor(x); // sp_grid_vline will add 0.5 again, so we'll pre-emptively use floor() + // instead of round() to avoid biasing the vertical lines to the right by half a pixel; see + // CanvasXYGrid::Render() for more details if (!scaled && (ylinenum % empspacing) != 0) { sp_grid_vline (buf, x0, buf->rect.top(), buf->rect.bottom() - 1, _color); |