From 3797a276312277878e56c0257bdb9614de30ebdb Mon Sep 17 00:00:00 2001
From: Maxime C <maxime.chamberland@usherbrooke.ca>
Date: Fri, 13 Nov 2015 14:42:51 -0500
Subject: [PATCH] fixed important RTT initialization problem where backward and
 forward directions where not equivalent

---
 src/dataset/RTTFibers.cpp | 14 +++++++++++++-
 src/dataset/RTTFibers.h   |  2 ++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/dataset/RTTFibers.cpp b/src/dataset/RTTFibers.cpp
index 38bcc08f..46250143 100644
--- a/src/dataset/RTTFibers.cpp
+++ b/src/dataset/RTTFibers.cpp
@@ -147,6 +147,8 @@ void RTTFibers::clearFibersRTT()
     m_streamlinesColors.clear();
     m_streamlinesPoints.clear();
 
+    m_storedDir.clear();
+
     if( SceneManager::getInstance()->isUsingVBO() )
     {
         glDeleteBuffers( 2, m_bufferObjectsRTT );
@@ -1500,7 +1502,17 @@ void RTTFibers::performHARDIRTT(Vector seed, int bwdfwd, vector<float>& points,
         if( withinMapThreshold(sticksNumber, currPosition) && !m_stop && absPeak != 0)
         {
             bool initWithDir = RTTrackingHelper::getInstance()->isInitSeed();
-            sticks = pickDirection(m_pMaximasInfo->getMainDirData()->at(sticksNumber), initWithDir, currPosition); 
+
+            if(bwdfwd != -1)
+            {
+                sticks = pickDirection(m_pMaximasInfo->getMainDirData()->at(sticksNumber), initWithDir, currPosition); 
+                m_storedDir = sticks;
+            }
+            else
+            { 
+                sticks = m_storedDir;
+            }
+
 
             currDirection.x = flippedAxes.x * sticks[0];
             currDirection.y = flippedAxes.y * sticks[1];
diff --git a/src/dataset/RTTFibers.h b/src/dataset/RTTFibers.h
index 62712ee2..f8d9f828 100644
--- a/src/dataset/RTTFibers.h
+++ b/src/dataset/RTTFibers.h
@@ -127,6 +127,8 @@ class RTTFibers
 
     std::vector<float> m_streamlinesPoints; // Points to be rendered Forward
 	std::vector<float> m_streamlinesColors; //Color (local directions)Forward
+
+    std::vector<float> m_storedDir;
     
 
 	float m_alpha;