From c40b99f7d53d05af30ba20384116cc04e3094c78 Mon Sep 17 00:00:00 2001
From: Dobrica Pavlinusic <dpavlin@rot13.org>
Date: Tue, 18 May 2010 17:00:09 +0200
Subject: [PATCH] calculate pos from value to prevent rounding errors

---
 public/facet_graph.js | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/public/facet_graph.js b/public/facet_graph.js
index 496097a..70ab79d 100644
--- a/public/facet_graph.js
+++ b/public/facet_graph.js
@@ -5,7 +5,6 @@ var data = {
 		range: 0,
 		inc: 0,
 		inc_bar: 0,
-		inc_px: 0,
 		data: [],
 		px: [],
 		num_labels: 0,
@@ -18,8 +17,6 @@ var data = {
 		data: [],
 		inc: 0,
 		num_labels: 0,
-		labels: [],
-		num_labels: 0,
 		label_spacing: 25,
 	},
 	width: 600,
@@ -104,13 +101,11 @@ function draw_labels(class_name,axis,size,css_pos,last_css_pos) {
 	axis.num_labels = Math.round( size / axis.label_spacing );
 	if ( axis.num_labels > axis.range ) axis.num_labels = axis.range;
 	axis.inc = Math.ceil( axis.range / axis.num_labels );
-	axis.inc_px = Math.ceil( size / axis.num_labels );
 
-	var pos = 0;
 	for( var val = axis.min; val < axis.max ; val += axis.inc ) {
+		var pos = Math.ceil( ( val - axis.min ) / axis.range * size );
 		$('<li style="'+css_pos+': '+pos+'px"><span class="line"></span><span class="label">' + val + '</span></li>')
 			.appendTo(labels);
-		pos += axis.inc_px;
 	}
 
 	$('<li style="'+last_css_pos+'"><span class="line"></span><span class="label">' + axis.max + '</span></li>')
-- 
2.20.1