From 6045ae856b19fbd71583278cc33370875a274b96 Mon Sep 17 00:00:00 2001
From: Anatoly Baksheev <no@email>
Date: Fri, 12 Jul 2013 23:59:19 +0400
Subject: [PATCH] reshape continuous clouds for better performance.

---
 modules/viz/src/simple_widgets.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/modules/viz/src/simple_widgets.cpp b/modules/viz/src/simple_widgets.cpp
index 9386c85639..d9184d365b 100644
--- a/modules/viz/src/simple_widgets.cpp
+++ b/modules/viz/src/simple_widgets.cpp
@@ -635,7 +635,12 @@ temp_viz::CloudWidget::CloudWidget(InputArray _cloud, InputArray _colors)
     Mat colors = _colors.getMat();
     CV_Assert(cloud.type() == CV_32FC3 || cloud.type() == CV_64FC3 || cloud.type() == CV_32FC4 || cloud.type() == CV_64FC4);
     CV_Assert(colors.type() == CV_8UC3 && cloud.size() == colors.size());
-    
+
+    if (cloud.isContinuous() && colors.isContinuous())
+    {
+        cloud.reshape(cloud.channels(), 1);
+        colors.reshape(colors.channels(), 1);
+    }
 
     vtkIdType nr_points;
     vtkSmartPointer<vtkPolyData> polydata = CreateCloudWidget::create(cloud, nr_points);