From: Carl Worth <cworth@cworth.org>
Date: Sun, 25 Jan 2009 16:46:16 +0000 (+1100)
Subject: Remove bogus 0.5 offset when setting up data transform.
X-Git-Url: https://git.cworth.org/git?p=acre;a=commitdiff_plain;h=e77e5c22bb7136b35963a58d3a1a8ffb080a7e87

Remove bogus 0.5 offset when setting up data transform.

I think my intuition here had been to provide at least some padding
between the frame and data. But we should do that explicitly (and
correctly) rather than just throwing in a 0.5 offset.
---

diff --git a/acre.c b/acre.c
index 5949a96..0dcf804 100644
--- a/acre.c
+++ b/acre.c
@@ -282,8 +282,8 @@ _set_transform_to_data_space (acre_t *acre)
     cairo_t *cr = acre->cr;
 
     cairo_translate (cr,
-		     acre->chart.x + 0.5,
-		     acre->chart.y + acre->chart.height - 0.5);
+		     acre->chart.x,
+		     acre->chart.y + acre->chart.height);
     cairo_scale (cr,
 		 acre->chart.width / (acre->x_axis.max - acre->x_axis.min),
 		 - acre->chart.height /(acre->y_axis.max - acre->y_axis.min));