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Warn and skip adding normal cloud if it is empty #2265

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Mar 27, 2018
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Warn and skip adding normal cloud if it is empty #2265

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7 changes: 7 additions & 0 deletions visualization/include/pcl/visualization/impl/pcl_visualizer.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -843,6 +843,13 @@ pcl::visualization::PCLVisualizer::addPointCloudNormals (
PCL_ERROR ("[addPointCloudNormals] The number of points differs from the number of normals!\n");
return (false);
}

if (normals->empty ())
{
PCL_WARN ("[addPointCloudNormals] An empty normal cloud is given! Nothing to display.\n");
return (false);
}

if (contains (id))
{
PCL_WARN ("[addPointCloudNormals] The id <%s> already exists! Please choose a different id and retry.\n", id.c_str ());
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