Use floor instead of round for better sub-pixel accuracy.

12 years ago · e5d2237829
parent 4c86903b99
commit e5d2237829
1 changed files with 2 additions and 2 deletions
--- a/jquery.flot.crosshair.js
+++ b/jquery.flot.crosshair.js
@ -147,12 +147,12 @@ The plugin also adds four public methods:

                ctx.beginPath();
                if (c.mode.indexOf("x") != -1) {
-                    var drawX = Math.round(crosshair.x) + adj;
+                    var drawX = Math.floor(crosshair.x) + adj;
                    ctx.moveTo(drawX, 0);
                    ctx.lineTo(drawX, plot.height());
                }
                if (c.mode.indexOf("y") != -1) {
-                    var drawY = Math.round(crosshair.y) + adj;
+                    var drawY = Math.floor(crosshair.y) + adj;
                    ctx.moveTo(0, drawY);
                    ctx.lineTo(plot.width(), drawY);
                }