From d11136f2e009a646f4b93dc88cf1c96d2a019033 Mon Sep 17 00:00:00 2001
From: Jean-Sebastien Mouret <js.mouret@gmail.com>
Date: Mon, 22 Sep 2014 14:43:57 +0800
Subject: [PATCH] Compute float implied step using the absolute of the input
 value.

Fix mouse drag setting the value to NaN if the initial value is negative.
---
 src/dat/controllers/NumberController.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/dat/controllers/NumberController.js b/src/dat/controllers/NumberController.js
index 294e36c..4cab081 100644
--- a/src/dat/controllers/NumberController.js
+++ b/src/dat/controllers/NumberController.js
@@ -46,7 +46,7 @@ define([
         this.__impliedStep = 1; // What are we, psychics?
       } else {
         // Hey Doug, check this out.
-        this.__impliedStep = Math.pow(10, Math.floor(Math.log(this.initialValue)/Math.LN10))/10;
+        this.__impliedStep = Math.pow(10, Math.floor(Math.log(Math.abs(this.initialValue))/Math.LN10))/10;
       }
 
     } else {
@@ -142,4 +142,4 @@ define([
 
   return NumberController;
 
-});
\ No newline at end of file
+});